Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2000-2008 Alacritech, Inc. All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above |
| 12 | * copyright notice, this list of conditions and the following |
| 13 | * disclaimer in the documentation and/or other materials provided |
| 14 | * with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY |
| 17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ALACRITECH, INC. OR |
| 20 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 23 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 24 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 25 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 26 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | * |
| 29 | * The views and conclusions contained in the software and documentation |
| 30 | * are those of the authors and should not be interpreted as representing |
| 31 | * official policies, either expressed or implied, of Alacritech, Inc. |
| 32 | * |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 33 | * Parts developed by LinSysSoft Sahara team |
| 34 | * |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 35 | **************************************************************************/ |
| 36 | |
| 37 | /* |
| 38 | * FILENAME: sxg.c |
| 39 | * |
| 40 | * The SXG driver for Alacritech's 10Gbe products. |
| 41 | * |
| 42 | * NOTE: This is the standard, non-accelerated version of Alacritech's |
| 43 | * IS-NIC driver. |
| 44 | */ |
| 45 | |
| 46 | #include <linux/kernel.h> |
| 47 | #include <linux/string.h> |
| 48 | #include <linux/errno.h> |
| 49 | #include <linux/module.h> |
| 50 | #include <linux/moduleparam.h> |
| 51 | #include <linux/ioport.h> |
| 52 | #include <linux/slab.h> |
| 53 | #include <linux/interrupt.h> |
| 54 | #include <linux/timer.h> |
| 55 | #include <linux/pci.h> |
| 56 | #include <linux/spinlock.h> |
| 57 | #include <linux/init.h> |
| 58 | #include <linux/netdevice.h> |
| 59 | #include <linux/etherdevice.h> |
| 60 | #include <linux/ethtool.h> |
| 61 | #include <linux/skbuff.h> |
| 62 | #include <linux/delay.h> |
| 63 | #include <linux/types.h> |
| 64 | #include <linux/dma-mapping.h> |
| 65 | #include <linux/mii.h> |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 66 | #include <linux/ip.h> |
| 67 | #include <linux/in.h> |
| 68 | #include <linux/tcp.h> |
| 69 | #include <linux/ipv6.h> |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 70 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 71 | #define SLIC_GET_STATS_ENABLED 0 |
| 72 | #define LINUX_FREES_ADAPTER_RESOURCES 1 |
| 73 | #define SXG_OFFLOAD_IP_CHECKSUM 0 |
| 74 | #define SXG_POWER_MANAGEMENT_ENABLED 0 |
| 75 | #define VPCI 0 |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 76 | #define ATK_DEBUG 1 |
| 77 | |
| 78 | #include "sxg_os.h" |
| 79 | #include "sxghw.h" |
| 80 | #include "sxghif.h" |
| 81 | #include "sxg.h" |
| 82 | #include "sxgdbg.h" |
| 83 | |
| 84 | #include "sxgphycode.h" |
Mithlesh Thukral | a3915dd | 2009-01-19 20:28:13 +0530 | [diff] [blame] | 85 | #define SXG_UCODE_DBG 0 /* Turn on for debugging */ |
| 86 | #ifdef SXG_UCODE_DBG |
| 87 | #include "saharadbgdownload.c" |
| 88 | #include "saharadbgdownloadB.c" |
| 89 | #else |
| 90 | #include "saharadownload.c" |
| 91 | #include "saharadownloadB.c" |
| 92 | #endif |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 93 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 94 | static int sxg_allocate_buffer_memory(struct adapter_t *adapter, u32 Size, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 95 | enum sxg_buffer_type BufferType); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 96 | static int sxg_allocate_rcvblock_complete(struct adapter_t *adapter, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 97 | void *RcvBlock, |
| 98 | dma_addr_t PhysicalAddress, |
| 99 | u32 Length); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 100 | static void sxg_allocate_sgl_buffer_complete(struct adapter_t *adapter, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 101 | struct sxg_scatter_gather *SxgSgl, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 102 | dma_addr_t PhysicalAddress, |
| 103 | u32 Length); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 104 | |
| 105 | static void sxg_mcast_init_crc32(void); |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 106 | static int sxg_entry_open(struct net_device *dev); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 107 | static int sxg_second_open(struct net_device * dev); |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 108 | static int sxg_entry_halt(struct net_device *dev); |
| 109 | static int sxg_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 110 | static int sxg_send_packets(struct sk_buff *skb, struct net_device *dev); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 111 | static int sxg_transmit_packet(struct adapter_t *adapter, struct sk_buff *skb); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 112 | static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 113 | struct sxg_scatter_gather *SxgSgl); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 114 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 115 | static void sxg_handle_interrupt(struct adapter_t *adapter); |
| 116 | static int sxg_process_isr(struct adapter_t *adapter, u32 MessageId); |
| 117 | static u32 sxg_process_event_queue(struct adapter_t *adapter, u32 RssId); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 118 | static void sxg_complete_slow_send(struct adapter_t *adapter, int irq_context); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 119 | static struct sk_buff *sxg_slow_receive(struct adapter_t *adapter, |
| 120 | struct sxg_event *Event); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 121 | static void sxg_process_rcv_error(struct adapter_t *adapter, u32 ErrorStatus); |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 122 | /* See if we need sxg_mac_filter() in future. If not remove it |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 123 | static bool sxg_mac_filter(struct adapter_t *adapter, |
| 124 | struct ether_header *EtherHdr, ushort length); |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 125 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 126 | static struct net_device_stats *sxg_get_stats(struct net_device * dev); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 127 | void sxg_free_resources(struct adapter_t *adapter); |
| 128 | void sxg_free_rcvblocks(struct adapter_t *adapter); |
| 129 | void sxg_free_sgl_buffers(struct adapter_t *adapter); |
| 130 | void sxg_unmap_resources(struct adapter_t *adapter); |
| 131 | void sxg_free_mcast_addrs(struct adapter_t *adapter); |
| 132 | void sxg_collect_statistics(struct adapter_t *adapter); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 133 | |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 134 | #define XXXTODO 0 |
| 135 | |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 136 | #if XXXTODO |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 137 | static int sxg_mac_set_address(struct net_device *dev, void *ptr); |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 138 | static void sxg_unmap_mmio_space(struct adapter_t *adapter); |
| 139 | #endif |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 140 | static void sxg_mcast_set_list(struct net_device *dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 141 | |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 142 | static int sxg_adapter_set_hwaddr(struct adapter_t *adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 143 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 144 | static int sxg_initialize_adapter(struct adapter_t *adapter); |
| 145 | static void sxg_stock_rcv_buffers(struct adapter_t *adapter); |
| 146 | static void sxg_complete_descriptor_blocks(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 147 | unsigned char Index); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 148 | static int sxg_initialize_link(struct adapter_t *adapter); |
| 149 | static int sxg_phy_init(struct adapter_t *adapter); |
| 150 | static void sxg_link_event(struct adapter_t *adapter); |
| 151 | static enum SXG_LINK_STATE sxg_get_link_state(struct adapter_t *adapter); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 152 | static void sxg_link_state(struct adapter_t *adapter, |
| 153 | enum SXG_LINK_STATE LinkState); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 154 | static int sxg_write_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 155 | u32 DevAddr, u32 RegAddr, u32 Value); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 156 | static int sxg_read_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 157 | u32 DevAddr, u32 RegAddr, u32 *pValue); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 158 | |
| 159 | static unsigned int sxg_first_init = 1; |
| 160 | static char *sxg_banner = |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 161 | "Alacritech SLIC Technology(tm) Server and Storage \ |
| 162 | 10Gbe Accelerator (Non-Accelerated)\n"; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 163 | |
| 164 | static int sxg_debug = 1; |
| 165 | static int debug = -1; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 166 | static struct net_device *head_netdevice = NULL; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 167 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 168 | static struct sxgbase_driver sxg_global = { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 169 | .dynamic_intagg = 1, |
| 170 | }; |
| 171 | static int intagg_delay = 100; |
| 172 | static u32 dynamic_intagg = 0; |
| 173 | |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 174 | char sxg_driver_name[] = "sxg_nic"; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 175 | #define DRV_AUTHOR "Alacritech, Inc. Engineering" |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 176 | #define DRV_DESCRIPTION \ |
| 177 | "Alacritech SLIC Techonology(tm) Non-Accelerated 10Gbe Driver" |
| 178 | #define DRV_COPYRIGHT \ |
| 179 | "Copyright 2000-2008 Alacritech, Inc. All rights reserved." |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 180 | |
| 181 | MODULE_AUTHOR(DRV_AUTHOR); |
| 182 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 183 | MODULE_LICENSE("GPL"); |
| 184 | |
| 185 | module_param(dynamic_intagg, int, 0); |
| 186 | MODULE_PARM_DESC(dynamic_intagg, "Dynamic Interrupt Aggregation Setting"); |
| 187 | module_param(intagg_delay, int, 0); |
| 188 | MODULE_PARM_DESC(intagg_delay, "uSec Interrupt Aggregation Delay"); |
| 189 | |
| 190 | static struct pci_device_id sxg_pci_tbl[] __devinitdata = { |
| 191 | {PCI_DEVICE(SXG_VENDOR_ID, SXG_DEVICE_ID)}, |
| 192 | {0,} |
| 193 | }; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 194 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 195 | MODULE_DEVICE_TABLE(pci, sxg_pci_tbl); |
| 196 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 197 | static inline void sxg_reg32_write(void __iomem *reg, u32 value, bool flush) |
| 198 | { |
| 199 | writel(value, reg); |
| 200 | if (flush) |
| 201 | mb(); |
| 202 | } |
| 203 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 204 | static inline void sxg_reg64_write(struct adapter_t *adapter, void __iomem *reg, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 205 | u64 value, u32 cpu) |
| 206 | { |
| 207 | u32 value_high = (u32) (value >> 32); |
| 208 | u32 value_low = (u32) (value & 0x00000000FFFFFFFF); |
| 209 | unsigned long flags; |
| 210 | |
| 211 | spin_lock_irqsave(&adapter->Bit64RegLock, flags); |
| 212 | writel(value_high, (void __iomem *)(&adapter->UcodeRegs[cpu].Upper)); |
| 213 | writel(value_low, reg); |
| 214 | spin_unlock_irqrestore(&adapter->Bit64RegLock, flags); |
| 215 | } |
| 216 | |
| 217 | static void sxg_init_driver(void) |
| 218 | { |
| 219 | if (sxg_first_init) { |
| 220 | DBG_ERROR("sxg: %s sxg_first_init set jiffies[%lx]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 221 | __func__, jiffies); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 222 | sxg_first_init = 0; |
| 223 | spin_lock_init(&sxg_global.driver_lock); |
| 224 | } |
| 225 | } |
| 226 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 227 | static void sxg_dbg_macaddrs(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 228 | { |
| 229 | DBG_ERROR(" (%s) curr %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
| 230 | adapter->netdev->name, adapter->currmacaddr[0], |
| 231 | adapter->currmacaddr[1], adapter->currmacaddr[2], |
| 232 | adapter->currmacaddr[3], adapter->currmacaddr[4], |
| 233 | adapter->currmacaddr[5]); |
| 234 | DBG_ERROR(" (%s) mac %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
| 235 | adapter->netdev->name, adapter->macaddr[0], |
| 236 | adapter->macaddr[1], adapter->macaddr[2], |
| 237 | adapter->macaddr[3], adapter->macaddr[4], |
| 238 | adapter->macaddr[5]); |
| 239 | return; |
| 240 | } |
| 241 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 242 | /* SXG Globals */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 243 | static struct sxg_driver SxgDriver; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 244 | |
| 245 | #ifdef ATKDBG |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 246 | static struct sxg_trace_buffer LSxgTraceBuffer; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 247 | #endif /* ATKDBG */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 248 | static struct sxg_trace_buffer *SxgTraceBuffer = NULL; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 249 | |
| 250 | /* |
| 251 | * sxg_download_microcode |
| 252 | * |
| 253 | * Download Microcode to Sahara adapter |
| 254 | * |
| 255 | * Arguments - |
| 256 | * adapter - A pointer to our adapter structure |
| 257 | * UcodeSel - microcode file selection |
| 258 | * |
| 259 | * Return |
| 260 | * int |
| 261 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 262 | static bool sxg_download_microcode(struct adapter_t *adapter, |
| 263 | enum SXG_UCODE_SEL UcodeSel) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 264 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 265 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 266 | u32 Section; |
| 267 | u32 ThisSectionSize; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 268 | u32 *Instruction = NULL; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 269 | u32 BaseAddress, AddressOffset, Address; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 270 | /* u32 Failure; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 271 | u32 ValueRead; |
| 272 | u32 i; |
| 273 | u32 numSections = 0; |
| 274 | u32 sectionSize[16]; |
| 275 | u32 sectionStart[16]; |
| 276 | |
| 277 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DnldUcod", |
| 278 | adapter, 0, 0, 0); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 279 | DBG_ERROR("sxg: %s ENTER\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 280 | |
| 281 | switch (UcodeSel) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 282 | case SXG_UCODE_SAHARA: /* Sahara operational ucode */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 283 | numSections = SNumSections; |
| 284 | for (i = 0; i < numSections; i++) { |
| 285 | sectionSize[i] = SSectionSize[i]; |
| 286 | sectionStart[i] = SSectionStart[i]; |
| 287 | } |
| 288 | break; |
| 289 | default: |
| 290 | printk(KERN_ERR KBUILD_MODNAME |
| 291 | ": Woah, big error with the microcode!\n"); |
| 292 | break; |
| 293 | } |
| 294 | |
| 295 | DBG_ERROR("sxg: RESET THE CARD\n"); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 296 | /* First, reset the card */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 297 | WRITE_REG(HwRegs->Reset, 0xDEAD, FLUSH); |
| 298 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 299 | /* |
| 300 | * Download each section of the microcode as specified in |
| 301 | * its download file. The *download.c file is generated using |
| 302 | * the saharaobjtoc facility which converts the metastep .obj |
| 303 | * file to a .c file which contains a two dimentional array. |
| 304 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 305 | for (Section = 0; Section < numSections; Section++) { |
| 306 | DBG_ERROR("sxg: SECTION # %d\n", Section); |
| 307 | switch (UcodeSel) { |
| 308 | case SXG_UCODE_SAHARA: |
| 309 | Instruction = (u32 *) & SaharaUCode[Section][0]; |
| 310 | break; |
| 311 | default: |
| 312 | ASSERT(0); |
| 313 | break; |
| 314 | } |
| 315 | BaseAddress = sectionStart[Section]; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 316 | /* Size in instructions */ |
| 317 | ThisSectionSize = sectionSize[Section] / 12; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 318 | for (AddressOffset = 0; AddressOffset < ThisSectionSize; |
| 319 | AddressOffset++) { |
| 320 | Address = BaseAddress + AddressOffset; |
| 321 | ASSERT((Address & ~MICROCODE_ADDRESS_MASK) == 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 322 | /* Write instruction bits 31 - 0 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 323 | WRITE_REG(HwRegs->UcodeDataLow, *Instruction, FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 324 | /* Write instruction bits 63-32 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 325 | WRITE_REG(HwRegs->UcodeDataMiddle, *(Instruction + 1), |
| 326 | FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 327 | /* Write instruction bits 95-64 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 328 | WRITE_REG(HwRegs->UcodeDataHigh, *(Instruction + 2), |
| 329 | FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 330 | /* Write instruction address with the WRITE bit set */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 331 | WRITE_REG(HwRegs->UcodeAddr, |
| 332 | (Address | MICROCODE_ADDRESS_WRITE), FLUSH); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 333 | /* |
| 334 | * Sahara bug in the ucode download logic - the write to DataLow |
| 335 | * for the next instruction could get corrupted. To avoid this, |
| 336 | * write to DataLow again for this instruction (which may get |
| 337 | * corrupted, but it doesn't matter), then increment the address |
| 338 | * and write the data for the next instruction to DataLow. That |
| 339 | * write should succeed. |
| 340 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 341 | WRITE_REG(HwRegs->UcodeDataLow, *Instruction, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 342 | /* Advance 3 u32S to start of next instruction */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 343 | Instruction += 3; |
| 344 | } |
| 345 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 346 | /* |
| 347 | * Now repeat the entire operation reading the instruction back and |
| 348 | * checking for parity errors |
| 349 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 350 | for (Section = 0; Section < numSections; Section++) { |
| 351 | DBG_ERROR("sxg: check SECTION # %d\n", Section); |
| 352 | switch (UcodeSel) { |
| 353 | case SXG_UCODE_SAHARA: |
| 354 | Instruction = (u32 *) & SaharaUCode[Section][0]; |
| 355 | break; |
| 356 | default: |
| 357 | ASSERT(0); |
| 358 | break; |
| 359 | } |
| 360 | BaseAddress = sectionStart[Section]; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 361 | /* Size in instructions */ |
| 362 | ThisSectionSize = sectionSize[Section] / 12; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 363 | for (AddressOffset = 0; AddressOffset < ThisSectionSize; |
| 364 | AddressOffset++) { |
| 365 | Address = BaseAddress + AddressOffset; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 366 | /* Write the address with the READ bit set */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 367 | WRITE_REG(HwRegs->UcodeAddr, |
| 368 | (Address | MICROCODE_ADDRESS_READ), FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 369 | /* Read it back and check parity bit. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 370 | READ_REG(HwRegs->UcodeAddr, ValueRead); |
| 371 | if (ValueRead & MICROCODE_ADDRESS_PARITY) { |
| 372 | DBG_ERROR("sxg: %s PARITY ERROR\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 373 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 374 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 375 | return FALSE; /* Parity error */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 376 | } |
| 377 | ASSERT((ValueRead & MICROCODE_ADDRESS_MASK) == Address); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 378 | /* Read the instruction back and compare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 379 | READ_REG(HwRegs->UcodeDataLow, ValueRead); |
| 380 | if (ValueRead != *Instruction) { |
| 381 | DBG_ERROR("sxg: %s MISCOMPARE LOW\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 382 | __func__); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 383 | return FALSE; /* Miscompare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 384 | } |
| 385 | READ_REG(HwRegs->UcodeDataMiddle, ValueRead); |
| 386 | if (ValueRead != *(Instruction + 1)) { |
| 387 | DBG_ERROR("sxg: %s MISCOMPARE MIDDLE\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 388 | __func__); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 389 | return FALSE; /* Miscompare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 390 | } |
| 391 | READ_REG(HwRegs->UcodeDataHigh, ValueRead); |
| 392 | if (ValueRead != *(Instruction + 2)) { |
| 393 | DBG_ERROR("sxg: %s MISCOMPARE HIGH\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 394 | __func__); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 395 | return FALSE; /* Miscompare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 396 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 397 | /* Advance 3 u32S to start of next instruction */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 398 | Instruction += 3; |
| 399 | } |
| 400 | } |
| 401 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 402 | /* Everything OK, Go. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 403 | WRITE_REG(HwRegs->UcodeAddr, MICROCODE_ADDRESS_GO, FLUSH); |
| 404 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 405 | /* |
| 406 | * Poll the CardUp register to wait for microcode to initialize |
| 407 | * Give up after 10,000 attemps (500ms). |
| 408 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 409 | for (i = 0; i < 10000; i++) { |
| 410 | udelay(50); |
| 411 | READ_REG(adapter->UcodeRegs[0].CardUp, ValueRead); |
| 412 | if (ValueRead == 0xCAFE) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 413 | DBG_ERROR("sxg: %s BOO YA 0xCAFE\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 414 | break; |
| 415 | } |
| 416 | } |
| 417 | if (i == 10000) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 418 | DBG_ERROR("sxg: %s TIMEOUT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 419 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 420 | return FALSE; /* Timeout */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 421 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 422 | /* |
| 423 | * Now write the LoadSync register. This is used to |
| 424 | * synchronize with the card so it can scribble on the memory |
| 425 | * that contained 0xCAFE from the "CardUp" step above |
| 426 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 427 | if (UcodeSel == SXG_UCODE_SAHARA) { |
| 428 | WRITE_REG(adapter->UcodeRegs[0].LoadSync, 0, FLUSH); |
| 429 | } |
| 430 | |
| 431 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDnldUcd", |
| 432 | adapter, 0, 0, 0); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 433 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 434 | |
| 435 | return (TRUE); |
| 436 | } |
| 437 | |
| 438 | /* |
| 439 | * sxg_allocate_resources - Allocate memory and locks |
| 440 | * |
| 441 | * Arguments - |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 442 | * adapter - A pointer to our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 443 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 444 | * Return - int |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 445 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 446 | static int sxg_allocate_resources(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 447 | { |
| 448 | int status; |
| 449 | u32 i; |
| 450 | u32 RssIds, IsrCount; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 451 | /* struct sxg_xmt_ring *XmtRing; */ |
| 452 | /* struct sxg_rcv_ring *RcvRing; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 453 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 454 | DBG_ERROR("%s ENTER\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 455 | |
| 456 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AllocRes", |
| 457 | adapter, 0, 0, 0); |
| 458 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 459 | /* Windows tells us how many CPUs it plans to use for */ |
| 460 | /* RSS */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 461 | RssIds = SXG_RSS_CPU_COUNT(adapter); |
| 462 | IsrCount = adapter->MsiEnabled ? RssIds : 1; |
| 463 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 464 | DBG_ERROR("%s Setup the spinlocks\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 465 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 466 | /* Allocate spinlocks and initialize listheads first. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 467 | spin_lock_init(&adapter->RcvQLock); |
| 468 | spin_lock_init(&adapter->SglQLock); |
| 469 | spin_lock_init(&adapter->XmtZeroLock); |
| 470 | spin_lock_init(&adapter->Bit64RegLock); |
| 471 | spin_lock_init(&adapter->AdapterLock); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 472 | atomic_set(&adapter->pending_allocations, 0); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 473 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 474 | DBG_ERROR("%s Setup the lists\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 475 | |
| 476 | InitializeListHead(&adapter->FreeRcvBuffers); |
| 477 | InitializeListHead(&adapter->FreeRcvBlocks); |
| 478 | InitializeListHead(&adapter->AllRcvBlocks); |
| 479 | InitializeListHead(&adapter->FreeSglBuffers); |
| 480 | InitializeListHead(&adapter->AllSglBuffers); |
| 481 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 482 | /* |
| 483 | * Mark these basic allocations done. This flags essentially |
| 484 | * tells the SxgFreeResources routine that it can grab spinlocks |
| 485 | * and reference listheads. |
| 486 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 487 | adapter->BasicAllocations = TRUE; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 488 | /* |
| 489 | * Main allocation loop. Start with the maximum supported by |
| 490 | * the microcode and back off if memory allocation |
| 491 | * fails. If we hit a minimum, fail. |
| 492 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 493 | |
| 494 | for (;;) { |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 495 | DBG_ERROR("%s Allocate XmtRings size[%x]\n", __func__, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 496 | (unsigned int)(sizeof(struct sxg_xmt_ring) * 1)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 497 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 498 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 499 | * Start with big items first - receive and transmit rings. |
| 500 | * At the moment I'm going to keep the ring size fixed and |
| 501 | * adjust the TCBs if we fail. Later we might |
| 502 | * consider reducing the ring size as well.. |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 503 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 504 | adapter->XmtRings = pci_alloc_consistent(adapter->pcidev, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 505 | sizeof(struct sxg_xmt_ring) * |
| 506 | 1, |
| 507 | &adapter->PXmtRings); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 508 | DBG_ERROR("%s XmtRings[%p]\n", __func__, adapter->XmtRings); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 509 | |
| 510 | if (!adapter->XmtRings) { |
| 511 | goto per_tcb_allocation_failed; |
| 512 | } |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 513 | memset(adapter->XmtRings, 0, sizeof(struct sxg_xmt_ring) * 1); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 514 | |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 515 | DBG_ERROR("%s Allocate RcvRings size[%x]\n", __func__, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 516 | (unsigned int)(sizeof(struct sxg_rcv_ring) * 1)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 517 | adapter->RcvRings = |
| 518 | pci_alloc_consistent(adapter->pcidev, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 519 | sizeof(struct sxg_rcv_ring) * 1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 520 | &adapter->PRcvRings); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 521 | DBG_ERROR("%s RcvRings[%p]\n", __func__, adapter->RcvRings); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 522 | if (!adapter->RcvRings) { |
| 523 | goto per_tcb_allocation_failed; |
| 524 | } |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 525 | memset(adapter->RcvRings, 0, sizeof(struct sxg_rcv_ring) * 1); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 526 | adapter->ucode_stats = kzalloc(sizeof(struct sxg_ucode_stats), GFP_ATOMIC); |
| 527 | adapter->pucode_stats = pci_map_single(adapter->pcidev, |
| 528 | adapter->ucode_stats, |
| 529 | sizeof(struct sxg_ucode_stats), |
| 530 | PCI_DMA_FROMDEVICE); |
| 531 | // memset(adapter->ucode_stats, 0, sizeof(struct sxg_ucode_stats)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 532 | break; |
| 533 | |
| 534 | per_tcb_allocation_failed: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 535 | /* an allocation failed. Free any successful allocations. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 536 | if (adapter->XmtRings) { |
| 537 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 538 | sizeof(struct sxg_xmt_ring) * 1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 539 | adapter->XmtRings, |
| 540 | adapter->PXmtRings); |
| 541 | adapter->XmtRings = NULL; |
| 542 | } |
| 543 | if (adapter->RcvRings) { |
| 544 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 545 | sizeof(struct sxg_rcv_ring) * 1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 546 | adapter->RcvRings, |
| 547 | adapter->PRcvRings); |
| 548 | adapter->RcvRings = NULL; |
| 549 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 550 | /* Loop around and try again.... */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 551 | if (adapter->ucode_stats) { |
| 552 | pci_unmap_single(adapter->pcidev, |
| 553 | sizeof(struct sxg_ucode_stats), |
| 554 | adapter->pucode_stats, PCI_DMA_FROMDEVICE); |
| 555 | adapter->ucode_stats = NULL; |
| 556 | } |
| 557 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 558 | } |
| 559 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 560 | DBG_ERROR("%s Initialize RCV ZERO and XMT ZERO rings\n", __func__); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 561 | /* Initialize rcv zero and xmt zero rings */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 562 | SXG_INITIALIZE_RING(adapter->RcvRingZeroInfo, SXG_RCV_RING_SIZE); |
| 563 | SXG_INITIALIZE_RING(adapter->XmtRingZeroInfo, SXG_XMT_RING_SIZE); |
| 564 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 565 | /* Sanity check receive data structure format */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 566 | /* ASSERT((adapter->ReceiveBufferSize == SXG_RCV_DATA_BUFFER_SIZE) || |
| 567 | (adapter->ReceiveBufferSize == SXG_RCV_JUMBO_BUFFER_SIZE)); */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 568 | ASSERT(sizeof(struct sxg_rcv_descriptor_block) == |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 569 | SXG_RCV_DESCRIPTOR_BLOCK_SIZE); |
| 570 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 571 | /* |
| 572 | * Allocate receive data buffers. We allocate a block of buffers and |
| 573 | * a corresponding descriptor block at once. See sxghw.h:SXG_RCV_BLOCK |
| 574 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 575 | for (i = 0; i < SXG_INITIAL_RCV_DATA_BUFFERS; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 576 | i += SXG_RCV_DESCRIPTORS_PER_BLOCK) { |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 577 | status = sxg_allocate_buffer_memory(adapter, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 578 | SXG_RCV_BLOCK_SIZE(SXG_RCV_DATA_HDR_SIZE), |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 579 | SXG_BUFFER_TYPE_RCV); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 580 | if (status != STATUS_SUCCESS) |
| 581 | return status; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 582 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 583 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 584 | * NBL resource allocation can fail in the 'AllocateComplete' routine, |
| 585 | * which doesn't return status. Make sure we got the number of buffers |
| 586 | * we requested |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 587 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 588 | if (adapter->FreeRcvBufferCount < SXG_INITIAL_RCV_DATA_BUFFERS) { |
| 589 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF6", |
| 590 | adapter, adapter->FreeRcvBufferCount, SXG_MAX_ENTRIES, |
| 591 | 0); |
| 592 | return (STATUS_RESOURCES); |
| 593 | } |
| 594 | |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 595 | DBG_ERROR("%s Allocate EventRings size[%x]\n", __func__, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 596 | (unsigned int)(sizeof(struct sxg_event_ring) * RssIds)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 597 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 598 | /* Allocate event queues. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 599 | adapter->EventRings = pci_alloc_consistent(adapter->pcidev, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 600 | sizeof(struct sxg_event_ring) * |
| 601 | RssIds, |
| 602 | &adapter->PEventRings); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 603 | |
| 604 | if (!adapter->EventRings) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 605 | /* Caller will call SxgFreeAdapter to clean up above |
| 606 | * allocations */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 607 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF8", |
| 608 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 609 | status = STATUS_RESOURCES; |
| 610 | goto per_tcb_allocation_failed; |
| 611 | } |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 612 | memset(adapter->EventRings, 0, sizeof(struct sxg_event_ring) * RssIds); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 613 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 614 | DBG_ERROR("%s Allocate ISR size[%x]\n", __func__, IsrCount); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 615 | /* Allocate ISR */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 616 | adapter->Isr = pci_alloc_consistent(adapter->pcidev, |
| 617 | IsrCount, &adapter->PIsr); |
| 618 | if (!adapter->Isr) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 619 | /* Caller will call SxgFreeAdapter to clean up above |
| 620 | * allocations */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 621 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF9", |
| 622 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 623 | status = STATUS_RESOURCES; |
| 624 | goto per_tcb_allocation_failed; |
| 625 | } |
| 626 | memset(adapter->Isr, 0, sizeof(u32) * IsrCount); |
| 627 | |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 628 | DBG_ERROR("%s Allocate shared XMT ring zero index location size[%x]\n", |
| 629 | __func__, (unsigned int)sizeof(u32)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 630 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 631 | /* Allocate shared XMT ring zero index location */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 632 | adapter->XmtRingZeroIndex = pci_alloc_consistent(adapter->pcidev, |
| 633 | sizeof(u32), |
| 634 | &adapter-> |
| 635 | PXmtRingZeroIndex); |
| 636 | if (!adapter->XmtRingZeroIndex) { |
| 637 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF10", |
| 638 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 639 | status = STATUS_RESOURCES; |
| 640 | goto per_tcb_allocation_failed; |
| 641 | } |
| 642 | memset(adapter->XmtRingZeroIndex, 0, sizeof(u32)); |
| 643 | |
| 644 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlcResS", |
| 645 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 646 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 647 | return status; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 648 | } |
| 649 | |
| 650 | /* |
| 651 | * sxg_config_pci - |
| 652 | * |
| 653 | * Set up PCI Configuration space |
| 654 | * |
| 655 | * Arguments - |
| 656 | * pcidev - A pointer to our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 657 | */ |
| 658 | static void sxg_config_pci(struct pci_dev *pcidev) |
| 659 | { |
| 660 | u16 pci_command; |
| 661 | u16 new_command; |
| 662 | |
| 663 | pci_read_config_word(pcidev, PCI_COMMAND, &pci_command); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 664 | DBG_ERROR("sxg: %s PCI command[%4.4x]\n", __func__, pci_command); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 665 | /* Set the command register */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 666 | new_command = pci_command | ( |
| 667 | /* Memory Space Enable */ |
| 668 | PCI_COMMAND_MEMORY | |
| 669 | /* Bus master enable */ |
| 670 | PCI_COMMAND_MASTER | |
| 671 | /* Memory write and invalidate */ |
| 672 | PCI_COMMAND_INVALIDATE | |
| 673 | /* Parity error response */ |
| 674 | PCI_COMMAND_PARITY | |
| 675 | /* System ERR */ |
| 676 | PCI_COMMAND_SERR | |
| 677 | /* Fast back-to-back */ |
| 678 | PCI_COMMAND_FAST_BACK); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 679 | if (pci_command != new_command) { |
| 680 | DBG_ERROR("%s -- Updating PCI COMMAND register %4.4x->%4.4x.\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 681 | __func__, pci_command, new_command); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 682 | pci_write_config_word(pcidev, PCI_COMMAND, new_command); |
| 683 | } |
| 684 | } |
| 685 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 686 | /* |
| 687 | * sxg_read_config |
| 688 | * @adapter : Pointer to the adapter structure for the card |
| 689 | * This function will read the configuration data from EEPROM/FLASH |
| 690 | */ |
| 691 | static inline int sxg_read_config(struct adapter_t *adapter) |
| 692 | { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 693 | /* struct sxg_config data; */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 694 | struct sw_cfg_data *data; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 695 | dma_addr_t p_addr; |
| 696 | unsigned long status; |
| 697 | unsigned long i; |
| 698 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 699 | data = pci_alloc_consistent(adapter->pcidev, |
| 700 | sizeof(struct sw_cfg_data), &p_addr); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 701 | if(!data) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 702 | /* |
| 703 | * We cant get even this much memory. Raise a hell |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 704 | * Get out of here |
| 705 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 706 | printk(KERN_ERR"%s : Could not allocate memory for reading \ |
| 707 | EEPROM\n", __FUNCTION__); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 708 | return -ENOMEM; |
| 709 | } |
| 710 | |
| 711 | WRITE_REG(adapter->UcodeRegs[0].ConfigStat, SXG_CFG_TIMEOUT, TRUE); |
| 712 | |
| 713 | WRITE_REG64(adapter, adapter->UcodeRegs[0].Config, p_addr, 0); |
| 714 | for(i=0; i<1000; i++) { |
| 715 | READ_REG(adapter->UcodeRegs[0].ConfigStat, status); |
| 716 | if (status != SXG_CFG_TIMEOUT) |
| 717 | break; |
| 718 | mdelay(1); /* Do we really need this */ |
| 719 | } |
| 720 | |
| 721 | switch(status) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 722 | /* Config read from EEPROM succeeded */ |
| 723 | case SXG_CFG_LOAD_EEPROM: |
| 724 | /* Config read from Flash succeeded */ |
| 725 | case SXG_CFG_LOAD_FLASH: |
| 726 | /* Copy the MAC address to adapter structure */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 727 | /* TODO: We are not doing the remaining part : FRU, |
| 728 | * etc |
| 729 | */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 730 | memcpy(adapter->macaddr, data->MacAddr[0].MacAddr, |
| 731 | sizeof(struct sxg_config_mac)); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 732 | break; |
| 733 | case SXG_CFG_TIMEOUT: |
| 734 | case SXG_CFG_LOAD_INVALID: |
| 735 | case SXG_CFG_LOAD_ERROR: |
| 736 | default: /* Fix default handler later */ |
| 737 | printk(KERN_WARNING"%s : We could not read the config \ |
| 738 | word. Status = %ld\n", __FUNCTION__, status); |
| 739 | break; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 740 | } |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 741 | pci_free_consistent(adapter->pcidev, sizeof(struct sw_cfg_data), data, |
| 742 | p_addr); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 743 | if (adapter->netdev) { |
| 744 | memcpy(adapter->netdev->dev_addr, adapter->currmacaddr, 6); |
| 745 | memcpy(adapter->netdev->perm_addr, adapter->currmacaddr, 6); |
| 746 | } |
| 747 | printk("LINSYS : These are the new MAC address\n"); |
| 748 | sxg_dbg_macaddrs(adapter); |
| 749 | |
| 750 | return status; |
| 751 | } |
| 752 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 753 | static int sxg_entry_probe(struct pci_dev *pcidev, |
| 754 | const struct pci_device_id *pci_tbl_entry) |
| 755 | { |
| 756 | static int did_version = 0; |
| 757 | int err; |
| 758 | struct net_device *netdev; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 759 | struct adapter_t *adapter; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 760 | void __iomem *memmapped_ioaddr; |
| 761 | u32 status = 0; |
| 762 | ulong mmio_start = 0; |
| 763 | ulong mmio_len = 0; |
| 764 | |
| 765 | DBG_ERROR("sxg: %s 2.6 VERSION ENTER jiffies[%lx] cpu %d\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 766 | __func__, jiffies, smp_processor_id()); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 767 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 768 | /* Initialize trace buffer */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 769 | #ifdef ATKDBG |
| 770 | SxgTraceBuffer = &LSxgTraceBuffer; |
| 771 | SXG_TRACE_INIT(SxgTraceBuffer, TRACE_NOISY); |
| 772 | #endif |
| 773 | |
| 774 | sxg_global.dynamic_intagg = dynamic_intagg; |
| 775 | |
| 776 | err = pci_enable_device(pcidev); |
| 777 | |
| 778 | DBG_ERROR("Call pci_enable_device(%p) status[%x]\n", pcidev, err); |
| 779 | if (err) { |
| 780 | return err; |
| 781 | } |
| 782 | |
| 783 | if (sxg_debug > 0 && did_version++ == 0) { |
| 784 | printk(KERN_INFO "%s\n", sxg_banner); |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 785 | printk(KERN_INFO "%s\n", SXG_DRV_VERSION); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 786 | } |
| 787 | |
| 788 | if (!(err = pci_set_dma_mask(pcidev, DMA_64BIT_MASK))) { |
| 789 | DBG_ERROR("pci_set_dma_mask(DMA_64BIT_MASK) successful\n"); |
| 790 | } else { |
| 791 | if ((err = pci_set_dma_mask(pcidev, DMA_32BIT_MASK))) { |
| 792 | DBG_ERROR |
| 793 | ("No usable DMA configuration, aborting err[%x]\n", |
| 794 | err); |
| 795 | return err; |
| 796 | } |
| 797 | DBG_ERROR("pci_set_dma_mask(DMA_32BIT_MASK) successful\n"); |
| 798 | } |
| 799 | |
| 800 | DBG_ERROR("Call pci_request_regions\n"); |
| 801 | |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 802 | err = pci_request_regions(pcidev, sxg_driver_name); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 803 | if (err) { |
| 804 | DBG_ERROR("pci_request_regions FAILED err[%x]\n", err); |
| 805 | return err; |
| 806 | } |
| 807 | |
| 808 | DBG_ERROR("call pci_set_master\n"); |
| 809 | pci_set_master(pcidev); |
| 810 | |
| 811 | DBG_ERROR("call alloc_etherdev\n"); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 812 | netdev = alloc_etherdev(sizeof(struct adapter_t)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 813 | if (!netdev) { |
| 814 | err = -ENOMEM; |
| 815 | goto err_out_exit_sxg_probe; |
| 816 | } |
| 817 | DBG_ERROR("alloc_etherdev for slic netdev[%p]\n", netdev); |
| 818 | |
| 819 | SET_NETDEV_DEV(netdev, &pcidev->dev); |
| 820 | |
| 821 | pci_set_drvdata(pcidev, netdev); |
| 822 | adapter = netdev_priv(netdev); |
| 823 | adapter->netdev = netdev; |
| 824 | adapter->pcidev = pcidev; |
| 825 | |
| 826 | mmio_start = pci_resource_start(pcidev, 0); |
| 827 | mmio_len = pci_resource_len(pcidev, 0); |
| 828 | |
| 829 | DBG_ERROR("sxg: call ioremap(mmio_start[%lx], mmio_len[%lx])\n", |
| 830 | mmio_start, mmio_len); |
| 831 | |
| 832 | memmapped_ioaddr = ioremap(mmio_start, mmio_len); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 833 | DBG_ERROR("sxg: %s MEMMAPPED_IOADDR [%p]\n", __func__, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 834 | memmapped_ioaddr); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 835 | if (!memmapped_ioaddr) { |
| 836 | DBG_ERROR("%s cannot remap MMIO region %lx @ %lx\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 837 | __func__, mmio_len, mmio_start); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 838 | goto err_out_free_mmio_region_0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 839 | } |
| 840 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 841 | DBG_ERROR("sxg: %s found Alacritech SXG PCI, MMIO at %p, start[%lx] \ |
| 842 | len[%lx], IRQ %d.\n", __func__, memmapped_ioaddr, mmio_start, |
| 843 | mmio_len, pcidev->irq); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 844 | |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 845 | adapter->HwRegs = (void *)memmapped_ioaddr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 846 | adapter->base_addr = memmapped_ioaddr; |
| 847 | |
| 848 | mmio_start = pci_resource_start(pcidev, 2); |
| 849 | mmio_len = pci_resource_len(pcidev, 2); |
| 850 | |
| 851 | DBG_ERROR("sxg: call ioremap(mmio_start[%lx], mmio_len[%lx])\n", |
| 852 | mmio_start, mmio_len); |
| 853 | |
| 854 | memmapped_ioaddr = ioremap(mmio_start, mmio_len); |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 855 | DBG_ERROR("sxg: %s MEMMAPPED_IOADDR [%p]\n", __func__, |
| 856 | memmapped_ioaddr); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 857 | if (!memmapped_ioaddr) { |
| 858 | DBG_ERROR("%s cannot remap MMIO region %lx @ %lx\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 859 | __func__, mmio_len, mmio_start); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 860 | goto err_out_free_mmio_region_2; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 861 | } |
| 862 | |
| 863 | DBG_ERROR("sxg: %s found Alacritech SXG PCI, MMIO at %p, " |
| 864 | "start[%lx] len[%lx], IRQ %d.\n", __func__, |
| 865 | memmapped_ioaddr, mmio_start, mmio_len, pcidev->irq); |
| 866 | |
| 867 | adapter->UcodeRegs = (void *)memmapped_ioaddr; |
| 868 | |
| 869 | adapter->State = SXG_STATE_INITIALIZING; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 870 | /* |
| 871 | * Maintain a list of all adapters anchored by |
| 872 | * the global SxgDriver structure. |
| 873 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 874 | adapter->Next = SxgDriver.Adapters; |
| 875 | SxgDriver.Adapters = adapter; |
| 876 | adapter->AdapterID = ++SxgDriver.AdapterID; |
| 877 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 878 | /* Initialize CRC table used to determine multicast hash */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 879 | sxg_mcast_init_crc32(); |
| 880 | |
| 881 | adapter->JumboEnabled = FALSE; |
| 882 | adapter->RssEnabled = FALSE; |
| 883 | if (adapter->JumboEnabled) { |
| 884 | adapter->FrameSize = JUMBOMAXFRAME; |
| 885 | adapter->ReceiveBufferSize = SXG_RCV_JUMBO_BUFFER_SIZE; |
| 886 | } else { |
| 887 | adapter->FrameSize = ETHERMAXFRAME; |
| 888 | adapter->ReceiveBufferSize = SXG_RCV_DATA_BUFFER_SIZE; |
| 889 | } |
| 890 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 891 | /* |
| 892 | * status = SXG_READ_EEPROM(adapter); |
| 893 | * if (!status) { |
| 894 | * goto sxg_init_bad; |
| 895 | * } |
| 896 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 897 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 898 | DBG_ERROR("sxg: %s ENTER sxg_config_pci\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 899 | sxg_config_pci(pcidev); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 900 | DBG_ERROR("sxg: %s EXIT sxg_config_pci\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 901 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 902 | DBG_ERROR("sxg: %s ENTER sxg_init_driver\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 903 | sxg_init_driver(); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 904 | DBG_ERROR("sxg: %s EXIT sxg_init_driver\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 905 | |
| 906 | adapter->vendid = pci_tbl_entry->vendor; |
| 907 | adapter->devid = pci_tbl_entry->device; |
| 908 | adapter->subsysid = pci_tbl_entry->subdevice; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 909 | adapter->slotnumber = ((pcidev->devfn >> 3) & 0x1F); |
| 910 | adapter->functionnumber = (pcidev->devfn & 0x7); |
| 911 | adapter->memorylength = pci_resource_len(pcidev, 0); |
| 912 | adapter->irq = pcidev->irq; |
| 913 | adapter->next_netdevice = head_netdevice; |
| 914 | head_netdevice = netdev; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 915 | adapter->port = 0; /*adapter->functionnumber; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 916 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 917 | /* Allocate memory and other resources */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 918 | DBG_ERROR("sxg: %s ENTER sxg_allocate_resources\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 919 | status = sxg_allocate_resources(adapter); |
| 920 | DBG_ERROR("sxg: %s EXIT sxg_allocate_resources status %x\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 921 | __func__, status); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 922 | if (status != STATUS_SUCCESS) { |
| 923 | goto err_out_unmap; |
| 924 | } |
| 925 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 926 | DBG_ERROR("sxg: %s ENTER sxg_download_microcode\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 927 | if (sxg_download_microcode(adapter, SXG_UCODE_SAHARA)) { |
| 928 | DBG_ERROR("sxg: %s ENTER sxg_adapter_set_hwaddr\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 929 | __func__); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 930 | sxg_read_config(adapter); |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 931 | status = sxg_adapter_set_hwaddr(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 932 | } else { |
| 933 | adapter->state = ADAPT_FAIL; |
| 934 | adapter->linkstate = LINK_DOWN; |
| 935 | DBG_ERROR("sxg_download_microcode FAILED status[%x]\n", status); |
| 936 | } |
| 937 | |
| 938 | netdev->base_addr = (unsigned long)adapter->base_addr; |
| 939 | netdev->irq = adapter->irq; |
| 940 | netdev->open = sxg_entry_open; |
| 941 | netdev->stop = sxg_entry_halt; |
| 942 | netdev->hard_start_xmit = sxg_send_packets; |
| 943 | netdev->do_ioctl = sxg_ioctl; |
| 944 | #if XXXTODO |
| 945 | netdev->set_mac_address = sxg_mac_set_address; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 946 | #endif |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 947 | netdev->get_stats = sxg_get_stats; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 948 | netdev->set_multicast_list = sxg_mcast_set_list; |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 949 | SET_ETHTOOL_OPS(netdev, &sxg_nic_ethtool_ops); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 950 | |
| 951 | strcpy(netdev->name, "eth%d"); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 952 | /* strcpy(netdev->name, pci_name(pcidev)); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 953 | if ((err = register_netdev(netdev))) { |
| 954 | DBG_ERROR("Cannot register net device, aborting. %s\n", |
| 955 | netdev->name); |
| 956 | goto err_out_unmap; |
| 957 | } |
| 958 | |
| 959 | DBG_ERROR |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 960 | ("sxg: %s addr 0x%lx, irq %d, MAC addr \ |
| 961 | %02X:%02X:%02X:%02X:%02X:%02X\n", |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 962 | netdev->name, netdev->base_addr, pcidev->irq, netdev->dev_addr[0], |
| 963 | netdev->dev_addr[1], netdev->dev_addr[2], netdev->dev_addr[3], |
| 964 | netdev->dev_addr[4], netdev->dev_addr[5]); |
| 965 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 966 | /* sxg_init_bad: */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 967 | ASSERT(status == FALSE); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 968 | /* sxg_free_adapter(adapter); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 969 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 970 | DBG_ERROR("sxg: %s EXIT status[%x] jiffies[%lx] cpu %d\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 971 | status, jiffies, smp_processor_id()); |
| 972 | return status; |
| 973 | |
| 974 | err_out_unmap: |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 975 | sxg_free_resources(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 976 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 977 | err_out_free_mmio_region_2: |
| 978 | |
| 979 | mmio_start = pci_resource_start(pcidev, 2); |
| 980 | mmio_len = pci_resource_len(pcidev, 2); |
| 981 | release_mem_region(mmio_start, mmio_len); |
| 982 | |
| 983 | err_out_free_mmio_region_0: |
| 984 | |
| 985 | mmio_start = pci_resource_start(pcidev, 0); |
| 986 | mmio_len = pci_resource_len(pcidev, 0); |
| 987 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 988 | release_mem_region(mmio_start, mmio_len); |
| 989 | |
| 990 | err_out_exit_sxg_probe: |
| 991 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 992 | DBG_ERROR("%s EXIT jiffies[%lx] cpu %d\n", __func__, jiffies, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 993 | smp_processor_id()); |
| 994 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 995 | pci_disable_device(pcidev); |
| 996 | DBG_ERROR("sxg: %s deallocate device\n", __FUNCTION__); |
| 997 | kfree(netdev); |
| 998 | printk("Exit %s, Sxg driver loading failed..\n", __FUNCTION__); |
| 999 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1000 | return -ENODEV; |
| 1001 | } |
| 1002 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1003 | /* |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1004 | * LINE BASE Interrupt routines.. |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1005 | * |
| 1006 | * sxg_disable_interrupt |
| 1007 | * |
| 1008 | * DisableInterrupt Handler |
| 1009 | * |
| 1010 | * Arguments: |
| 1011 | * |
| 1012 | * adapter: Our adapter structure |
| 1013 | * |
| 1014 | * Return Value: |
| 1015 | * None. |
| 1016 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1017 | static void sxg_disable_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1018 | { |
| 1019 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DisIntr", |
| 1020 | adapter, adapter->InterruptsEnabled, 0, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1021 | /* For now, RSS is disabled with line based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1022 | ASSERT(adapter->RssEnabled == FALSE); |
| 1023 | ASSERT(adapter->MsiEnabled == FALSE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1024 | /* Turn off interrupts by writing to the icr register. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1025 | WRITE_REG(adapter->UcodeRegs[0].Icr, SXG_ICR(0, SXG_ICR_DISABLE), TRUE); |
| 1026 | |
| 1027 | adapter->InterruptsEnabled = 0; |
| 1028 | |
| 1029 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDisIntr", |
| 1030 | adapter, adapter->InterruptsEnabled, 0, 0); |
| 1031 | } |
| 1032 | |
| 1033 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1034 | * sxg_enable_interrupt |
| 1035 | * |
| 1036 | * EnableInterrupt Handler |
| 1037 | * |
| 1038 | * Arguments: |
| 1039 | * |
| 1040 | * adapter: Our adapter structure |
| 1041 | * |
| 1042 | * Return Value: |
| 1043 | * None. |
| 1044 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1045 | static void sxg_enable_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1046 | { |
| 1047 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "EnIntr", |
| 1048 | adapter, adapter->InterruptsEnabled, 0, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1049 | /* For now, RSS is disabled with line based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1050 | ASSERT(adapter->RssEnabled == FALSE); |
| 1051 | ASSERT(adapter->MsiEnabled == FALSE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1052 | /* Turn on interrupts by writing to the icr register. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1053 | WRITE_REG(adapter->UcodeRegs[0].Icr, SXG_ICR(0, SXG_ICR_ENABLE), TRUE); |
| 1054 | |
| 1055 | adapter->InterruptsEnabled = 1; |
| 1056 | |
| 1057 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XEnIntr", |
| 1058 | adapter, 0, 0, 0); |
| 1059 | } |
| 1060 | |
| 1061 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1062 | * sxg_isr - Process an line-based interrupt |
| 1063 | * |
| 1064 | * Arguments: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1065 | * Context - Our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1066 | * QueueDefault - Output parameter to queue to default CPU |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1067 | * TargetCpus - Output bitmap to schedule DPC's |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1068 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1069 | * Return Value: TRUE if our interrupt |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1070 | */ |
| 1071 | static irqreturn_t sxg_isr(int irq, void *dev_id) |
| 1072 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1073 | struct net_device *dev = (struct net_device *) dev_id; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1074 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1075 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 1076 | if(adapter->state != ADAPT_UP) |
| 1077 | return IRQ_NONE; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1078 | adapter->Stats.NumInts++; |
| 1079 | if (adapter->Isr[0] == 0) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1080 | /* |
| 1081 | * The SLIC driver used to experience a number of spurious |
| 1082 | * interrupts due to the delay associated with the masking of |
| 1083 | * the interrupt (we'd bounce back in here). If we see that |
| 1084 | * again with Sahara,add a READ_REG of the Icr register after |
| 1085 | * the WRITE_REG below. |
| 1086 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1087 | adapter->Stats.FalseInts++; |
| 1088 | return IRQ_NONE; |
| 1089 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1090 | /* |
| 1091 | * Move the Isr contents and clear the value in |
| 1092 | * shared memory, and mask interrupts |
| 1093 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1094 | adapter->IsrCopy[0] = adapter->Isr[0]; |
| 1095 | adapter->Isr[0] = 0; |
| 1096 | WRITE_REG(adapter->UcodeRegs[0].Icr, SXG_ICR(0, SXG_ICR_MASK), TRUE); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1097 | /* ASSERT(adapter->IsrDpcsPending == 0); */ |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1098 | #if XXXTODO /* RSS Stuff */ |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1099 | /* |
| 1100 | * If RSS is enabled and the ISR specifies SXG_ISR_EVENT, then |
| 1101 | * schedule DPC's based on event queues. |
| 1102 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1103 | if (adapter->RssEnabled && (adapter->IsrCopy[0] & SXG_ISR_EVENT)) { |
| 1104 | for (i = 0; |
| 1105 | i < adapter->RssSystemInfo->ProcessorInfo.RssCpuCount; |
| 1106 | i++) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1107 | struct sxg_event_ring *EventRing = |
| 1108 | &adapter->EventRings[i]; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1109 | struct sxg_event *Event = |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1110 | &EventRing->Ring[adapter->NextEvent[i]]; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1111 | unsigned char Cpu = |
| 1112 | adapter->RssSystemInfo->RssIdToCpu[i]; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1113 | if (Event->Status & EVENT_STATUS_VALID) { |
| 1114 | adapter->IsrDpcsPending++; |
| 1115 | CpuMask |= (1 << Cpu); |
| 1116 | } |
| 1117 | } |
| 1118 | } |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1119 | /* |
| 1120 | * Now, either schedule the CPUs specified by the CpuMask, |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1121 | * or queue default |
| 1122 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1123 | if (CpuMask) { |
| 1124 | *QueueDefault = FALSE; |
| 1125 | } else { |
| 1126 | adapter->IsrDpcsPending = 1; |
| 1127 | *QueueDefault = TRUE; |
| 1128 | } |
| 1129 | *TargetCpus = CpuMask; |
| 1130 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1131 | /* There are no DPCs in Linux, so call the handler now */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1132 | sxg_handle_interrupt(adapter); |
| 1133 | |
| 1134 | return IRQ_HANDLED; |
| 1135 | } |
| 1136 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1137 | static void sxg_handle_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1138 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1139 | /* unsigned char RssId = 0; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1140 | u32 NewIsr; |
| 1141 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1142 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "HndlIntr", |
| 1143 | adapter, adapter->IsrCopy[0], 0, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1144 | /* For now, RSS is disabled with line based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1145 | ASSERT(adapter->RssEnabled == FALSE); |
| 1146 | ASSERT(adapter->MsiEnabled == FALSE); |
| 1147 | ASSERT(adapter->IsrCopy[0]); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1148 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1149 | /* Always process the event queue. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1150 | sxg_process_event_queue(adapter, |
| 1151 | (adapter->RssEnabled ? /*RssId */ 0 : 0)); |
| 1152 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1153 | #if XXXTODO /* RSS stuff */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1154 | if (--adapter->IsrDpcsPending) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1155 | /* We're done. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1156 | ASSERT(adapter->RssEnabled); |
| 1157 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DPCsPend", |
| 1158 | adapter, 0, 0, 0); |
| 1159 | return; |
| 1160 | } |
| 1161 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1162 | /* Last (or only) DPC processes the ISR and clears the interrupt. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1163 | NewIsr = sxg_process_isr(adapter, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1164 | /* Reenable interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1165 | adapter->IsrCopy[0] = 0; |
| 1166 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "ClearIsr", |
| 1167 | adapter, NewIsr, 0, 0); |
| 1168 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1169 | WRITE_REG(adapter->UcodeRegs[0].Isr, NewIsr, TRUE); |
| 1170 | |
| 1171 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XHndlInt", |
| 1172 | adapter, 0, 0, 0); |
| 1173 | } |
| 1174 | |
| 1175 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1176 | * sxg_process_isr - Process an interrupt. Called from the line-based and |
| 1177 | * message based interrupt DPC routines |
| 1178 | * |
| 1179 | * Arguments: |
| 1180 | * adapter - Our adapter structure |
| 1181 | * Queue - The ISR that needs processing |
| 1182 | * |
| 1183 | * Return Value: |
| 1184 | * None |
| 1185 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1186 | static int sxg_process_isr(struct adapter_t *adapter, u32 MessageId) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1187 | { |
| 1188 | u32 Isr = adapter->IsrCopy[MessageId]; |
| 1189 | u32 NewIsr = 0; |
| 1190 | |
| 1191 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "ProcIsr", |
| 1192 | adapter, Isr, 0, 0); |
| 1193 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1194 | /* Error */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1195 | if (Isr & SXG_ISR_ERR) { |
| 1196 | if (Isr & SXG_ISR_PDQF) { |
| 1197 | adapter->Stats.PdqFull++; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1198 | DBG_ERROR("%s: SXG_ISR_ERR PDQF!!\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1199 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1200 | /* No host buffer */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1201 | if (Isr & SXG_ISR_RMISS) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1202 | /* |
| 1203 | * There is a bunch of code in the SLIC driver which |
| 1204 | * attempts to process more receive events per DPC |
| 1205 | * if we start to fall behind. We'll probablyd |
| 1206 | * need to do something similar here, but hold |
| 1207 | * off for now. I don't want to make the code more |
| 1208 | * complicated than strictly needed. |
| 1209 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 1210 | adapter->stats.rx_missed_errors++; |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1211 | if (adapter->stats.rx_missed_errors< 5) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1212 | DBG_ERROR("%s: SXG_ISR_ERR RMISS!!\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1213 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1214 | } |
| 1215 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1216 | /* Card crash */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1217 | if (Isr & SXG_ISR_DEAD) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1218 | /* |
| 1219 | * Set aside the crash info and set the adapter state |
| 1220 | * to RESET |
| 1221 | */ |
| 1222 | adapter->CrashCpu = (unsigned char) |
| 1223 | ((Isr & SXG_ISR_CPU) >> SXG_ISR_CPU_SHIFT); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1224 | adapter->CrashLocation = (ushort) (Isr & SXG_ISR_CRASH); |
| 1225 | adapter->Dead = TRUE; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1226 | DBG_ERROR("%s: ISR_DEAD %x, CPU: %d\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1227 | adapter->CrashLocation, adapter->CrashCpu); |
| 1228 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1229 | /* Event ring full */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1230 | if (Isr & SXG_ISR_ERFULL) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1231 | /* |
| 1232 | * Same issue as RMISS, really. This means the |
| 1233 | * host is falling behind the card. Need to increase |
| 1234 | * event ring size, process more events per interrupt, |
| 1235 | * and/or reduce/remove interrupt aggregation. |
| 1236 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1237 | adapter->Stats.EventRingFull++; |
| 1238 | DBG_ERROR("%s: SXG_ISR_ERR EVENT RING FULL!!\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1239 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1240 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1241 | /* Transmit drop - no DRAM buffers or XMT error */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1242 | if (Isr & SXG_ISR_XDROP) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1243 | DBG_ERROR("%s: SXG_ISR_ERR XDROP!!\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1244 | } |
| 1245 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1246 | /* Slowpath send completions */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1247 | if (Isr & SXG_ISR_SPSEND) { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1248 | sxg_complete_slow_send(adapter, 1); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1249 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1250 | /* Dump */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1251 | if (Isr & SXG_ISR_UPC) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1252 | /* Maybe change when debug is added.. */ |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1253 | // ASSERT(adapter->DumpCmdRunning); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1254 | adapter->DumpCmdRunning = FALSE; |
| 1255 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1256 | /* Link event */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1257 | if (Isr & SXG_ISR_LINK) { |
| 1258 | sxg_link_event(adapter); |
| 1259 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1260 | /* Debug - breakpoint hit */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1261 | if (Isr & SXG_ISR_BREAK) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1262 | /* |
| 1263 | * At the moment AGDB isn't written to support interactive |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1264 | * debug sessions. When it is, this interrupt will be used to |
| 1265 | * signal AGDB that it has hit a breakpoint. For now, ASSERT. |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1266 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1267 | ASSERT(0); |
| 1268 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1269 | /* Heartbeat response */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1270 | if (Isr & SXG_ISR_PING) { |
| 1271 | adapter->PingOutstanding = FALSE; |
| 1272 | } |
| 1273 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XProcIsr", |
| 1274 | adapter, Isr, NewIsr, 0); |
| 1275 | |
| 1276 | return (NewIsr); |
| 1277 | } |
| 1278 | |
| 1279 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1280 | * sxg_process_event_queue - Process our event queue |
| 1281 | * |
| 1282 | * Arguments: |
| 1283 | * - adapter - Adapter structure |
| 1284 | * - RssId - The event queue requiring processing |
| 1285 | * |
| 1286 | * Return Value: |
| 1287 | * None. |
| 1288 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1289 | static u32 sxg_process_event_queue(struct adapter_t *adapter, u32 RssId) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1290 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1291 | struct sxg_event_ring *EventRing = &adapter->EventRings[RssId]; |
| 1292 | struct sxg_event *Event = &EventRing->Ring[adapter->NextEvent[RssId]]; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1293 | u32 EventsProcessed = 0, Batches = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1294 | struct sk_buff *skb; |
| 1295 | #ifdef LINUX_HANDLES_RCV_INDICATION_LISTS |
| 1296 | struct sk_buff *prev_skb = NULL; |
| 1297 | struct sk_buff *IndicationList[SXG_RCV_ARRAYSIZE]; |
| 1298 | u32 Index; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1299 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1300 | #endif |
| 1301 | u32 ReturnStatus = 0; |
| 1302 | |
| 1303 | ASSERT((adapter->State == SXG_STATE_RUNNING) || |
| 1304 | (adapter->State == SXG_STATE_PAUSING) || |
| 1305 | (adapter->State == SXG_STATE_PAUSED) || |
| 1306 | (adapter->State == SXG_STATE_HALTING)); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1307 | /* |
| 1308 | * We may still have unprocessed events on the queue if |
| 1309 | * the card crashed. Don't process them. |
| 1310 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1311 | if (adapter->Dead) { |
| 1312 | return (0); |
| 1313 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1314 | /* |
| 1315 | * In theory there should only be a single processor that |
| 1316 | * accesses this queue, and only at interrupt-DPC time. So/ |
| 1317 | * we shouldn't need a lock for any of this. |
| 1318 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1319 | while (Event->Status & EVENT_STATUS_VALID) { |
| 1320 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "Event", |
| 1321 | Event, Event->Code, Event->Status, |
| 1322 | adapter->NextEvent); |
| 1323 | switch (Event->Code) { |
| 1324 | case EVENT_CODE_BUFFERS: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1325 | /* struct sxg_ring_info Head & Tail == unsigned char */ |
| 1326 | ASSERT(!(Event->CommandIndex & 0xFF00)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1327 | sxg_complete_descriptor_blocks(adapter, |
| 1328 | Event->CommandIndex); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1329 | break; |
| 1330 | case EVENT_CODE_SLOWRCV: |
| 1331 | --adapter->RcvBuffersOnCard; |
| 1332 | if ((skb = sxg_slow_receive(adapter, Event))) { |
| 1333 | u32 rx_bytes; |
| 1334 | #ifdef LINUX_HANDLES_RCV_INDICATION_LISTS |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1335 | /* Add it to our indication list */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1336 | SXG_ADD_RCV_PACKET(adapter, skb, prev_skb, |
| 1337 | IndicationList, num_skbs); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1338 | /* |
| 1339 | * Linux, we just pass up each skb to the |
| 1340 | * protocol above at this point, there is no |
| 1341 | * capability of an indication list. |
| 1342 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1343 | #else |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1344 | /* CHECK skb_pull(skb, INIC_RCVBUF_HEADSIZE); */ |
| 1345 | /* (rcvbuf->length & IRHDDR_FLEN_MSK); */ |
| 1346 | rx_bytes = Event->Length; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1347 | adapter->stats.rx_packets++; |
| 1348 | adapter->stats.rx_bytes += rx_bytes; |
| 1349 | #if SXG_OFFLOAD_IP_CHECKSUM |
| 1350 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 1351 | #endif |
| 1352 | skb->dev = adapter->netdev; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1353 | netif_rx(skb); |
| 1354 | #endif |
| 1355 | } |
| 1356 | break; |
| 1357 | default: |
| 1358 | DBG_ERROR("%s: ERROR Invalid EventCode %d\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1359 | __func__, Event->Code); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1360 | /* ASSERT(0); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1361 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1362 | /* |
| 1363 | * See if we need to restock card receive buffers. |
| 1364 | * There are two things to note here: |
| 1365 | * First - This test is not SMP safe. The |
| 1366 | * adapter->BuffersOnCard field is protected via atomic |
| 1367 | * interlocked calls, but we do not protect it with respect |
| 1368 | * to these tests. The only way to do that is with a lock, |
| 1369 | * and I don't want to grab a lock every time we adjust the |
| 1370 | * BuffersOnCard count. Instead, we allow the buffer |
| 1371 | * replenishment to be off once in a while. The worst that |
| 1372 | * can happen is the card is given on more-or-less descriptor |
| 1373 | * block than the arbitrary value we've chosen. No big deal |
| 1374 | * In short DO NOT ADD A LOCK HERE, OR WHERE RcvBuffersOnCard |
| 1375 | * is adjusted. |
| 1376 | * Second - We expect this test to rarely |
| 1377 | * evaluate to true. We attempt to refill descriptor blocks |
| 1378 | * as they are returned to us (sxg_complete_descriptor_blocks) |
| 1379 | * so The only time this should evaluate to true is when |
| 1380 | * sxg_complete_descriptor_blocks failed to allocate |
| 1381 | * receive buffers. |
| 1382 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1383 | if (adapter->RcvBuffersOnCard < SXG_RCV_DATA_BUFFERS) { |
| 1384 | sxg_stock_rcv_buffers(adapter); |
| 1385 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1386 | /* |
| 1387 | * It's more efficient to just set this to zero. |
| 1388 | * But clearing the top bit saves potential debug info... |
| 1389 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1390 | Event->Status &= ~EVENT_STATUS_VALID; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1391 | /* Advance to the next event */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1392 | SXG_ADVANCE_INDEX(adapter->NextEvent[RssId], EVENT_RING_SIZE); |
| 1393 | Event = &EventRing->Ring[adapter->NextEvent[RssId]]; |
| 1394 | EventsProcessed++; |
| 1395 | if (EventsProcessed == EVENT_RING_BATCH) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1396 | /* Release a batch of events back to the card */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1397 | WRITE_REG(adapter->UcodeRegs[RssId].EventRelease, |
| 1398 | EVENT_RING_BATCH, FALSE); |
| 1399 | EventsProcessed = 0; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1400 | /* |
| 1401 | * If we've processed our batch limit, break out of the |
| 1402 | * loop and return SXG_ISR_EVENT to arrange for us to |
| 1403 | * be called again |
| 1404 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1405 | if (Batches++ == EVENT_BATCH_LIMIT) { |
| 1406 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, |
| 1407 | TRACE_NOISY, "EvtLimit", Batches, |
| 1408 | adapter->NextEvent, 0, 0); |
| 1409 | ReturnStatus = SXG_ISR_EVENT; |
| 1410 | break; |
| 1411 | } |
| 1412 | } |
| 1413 | } |
| 1414 | #ifdef LINUX_HANDLES_RCV_INDICATION_LISTS |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1415 | /* Indicate any received dumb-nic frames */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1416 | SXG_INDICATE_PACKETS(adapter, IndicationList, num_skbs); |
| 1417 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1418 | /* Release events back to the card. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1419 | if (EventsProcessed) { |
| 1420 | WRITE_REG(adapter->UcodeRegs[RssId].EventRelease, |
| 1421 | EventsProcessed, FALSE); |
| 1422 | } |
| 1423 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XPrcEvnt", |
| 1424 | Batches, EventsProcessed, adapter->NextEvent, num_skbs); |
| 1425 | |
| 1426 | return (ReturnStatus); |
| 1427 | } |
| 1428 | |
| 1429 | /* |
| 1430 | * sxg_complete_slow_send - Complete slowpath or dumb-nic sends |
| 1431 | * |
| 1432 | * Arguments - |
| 1433 | * adapter - A pointer to our adapter structure |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1434 | * irq_context - An integer to denote if we are in interrupt context |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1435 | * Return |
| 1436 | * None |
| 1437 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1438 | static void sxg_complete_slow_send(struct adapter_t *adapter, int irq_context) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1439 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1440 | struct sxg_xmt_ring *XmtRing = &adapter->XmtRings[0]; |
| 1441 | struct sxg_ring_info *XmtRingInfo = &adapter->XmtRingZeroInfo; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1442 | u32 *ContextType; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1443 | struct sxg_cmd *XmtCmd; |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1444 | unsigned long flags = 0; |
| 1445 | unsigned long sgl_flags = 0; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1446 | unsigned int processed_count = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1447 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1448 | /* |
| 1449 | * NOTE - This lock is dropped and regrabbed in this loop. |
| 1450 | * This means two different processors can both be running/ |
| 1451 | * through this loop. Be *very* careful. |
| 1452 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1453 | if(irq_context) { |
| 1454 | if(!spin_trylock(&adapter->XmtZeroLock)) |
| 1455 | goto lock_busy; |
| 1456 | } |
| 1457 | else |
| 1458 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
| 1459 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1460 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpSnds", |
| 1461 | adapter, XmtRingInfo->Head, XmtRingInfo->Tail, 0); |
| 1462 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1463 | while ((XmtRingInfo->Tail != *adapter->XmtRingZeroIndex) |
| 1464 | && processed_count++ < SXG_COMPLETE_SLOW_SEND_LIMIT) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1465 | /* |
| 1466 | * Locate the current Cmd (ring descriptor entry), and |
| 1467 | * associated SGL, and advance the tail |
| 1468 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1469 | SXG_RETURN_CMD(XmtRing, XmtRingInfo, XmtCmd, ContextType); |
| 1470 | ASSERT(ContextType); |
| 1471 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpSnd", |
| 1472 | XmtRingInfo->Head, XmtRingInfo->Tail, XmtCmd, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1473 | /* Clear the SGL field. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1474 | XmtCmd->Sgl = 0; |
| 1475 | |
| 1476 | switch (*ContextType) { |
| 1477 | case SXG_SGL_DUMB: |
| 1478 | { |
| 1479 | struct sk_buff *skb; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1480 | struct sxg_scatter_gather *SxgSgl = |
| 1481 | (struct sxg_scatter_gather *)ContextType; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1482 | dma64_addr_t FirstSgeAddress; |
| 1483 | u32 FirstSgeLength; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1484 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1485 | /* Dumb-nic send. Command context is the dumb-nic SGL */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1486 | skb = (struct sk_buff *)ContextType; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1487 | skb = SxgSgl->DumbPacket; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1488 | FirstSgeAddress = XmtCmd->Buffer.FirstSgeAddress; |
| 1489 | FirstSgeLength = XmtCmd->Buffer.FirstSgeLength; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1490 | /* Complete the send */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1491 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, |
| 1492 | TRACE_IMPORTANT, "DmSndCmp", skb, 0, |
| 1493 | 0, 0); |
| 1494 | ASSERT(adapter->Stats.XmtQLen); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1495 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1496 | * Now drop the lock and complete the send |
| 1497 | * back to Microsoft. We need to drop the lock |
| 1498 | * because Microsoft can come back with a |
| 1499 | * chimney send, which results in a double trip |
| 1500 | * in SxgTcpOuput |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1501 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1502 | if(irq_context) |
| 1503 | spin_unlock(&adapter->XmtZeroLock); |
| 1504 | else |
| 1505 | spin_unlock_irqrestore( |
| 1506 | &adapter->XmtZeroLock, flags); |
| 1507 | |
| 1508 | SxgSgl->DumbPacket = NULL; |
| 1509 | SXG_COMPLETE_DUMB_SEND(adapter, skb, |
| 1510 | FirstSgeAddress, |
| 1511 | FirstSgeLength); |
| 1512 | SXG_FREE_SGL_BUFFER(adapter, SxgSgl, NULL, |
| 1513 | irq_context); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1514 | /* and reacquire.. */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1515 | if(irq_context) { |
| 1516 | if(!spin_trylock(&adapter->XmtZeroLock)) |
| 1517 | goto lock_busy; |
| 1518 | } |
| 1519 | else |
| 1520 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1521 | } |
| 1522 | break; |
| 1523 | default: |
| 1524 | ASSERT(0); |
| 1525 | } |
| 1526 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1527 | if(irq_context) |
| 1528 | spin_unlock(&adapter->XmtZeroLock); |
| 1529 | else |
| 1530 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
| 1531 | lock_busy: |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1532 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpSnd", |
| 1533 | adapter, XmtRingInfo->Head, XmtRingInfo->Tail, 0); |
| 1534 | } |
| 1535 | |
| 1536 | /* |
| 1537 | * sxg_slow_receive |
| 1538 | * |
| 1539 | * Arguments - |
| 1540 | * adapter - A pointer to our adapter structure |
| 1541 | * Event - Receive event |
| 1542 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1543 | * Return - skb |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1544 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1545 | static struct sk_buff *sxg_slow_receive(struct adapter_t *adapter, |
| 1546 | struct sxg_event *Event) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1547 | { |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1548 | u32 BufferSize = adapter->ReceiveBufferSize; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1549 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1550 | struct sk_buff *Packet; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1551 | static int read_counter = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1552 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1553 | RcvDataBufferHdr = (struct sxg_rcv_data_buffer_hdr *) Event->HostHandle; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1554 | if(read_counter++ & 0x100) |
| 1555 | { |
| 1556 | sxg_collect_statistics(adapter); |
| 1557 | read_counter = 0; |
| 1558 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1559 | ASSERT(RcvDataBufferHdr); |
| 1560 | ASSERT(RcvDataBufferHdr->State == SXG_BUFFER_ONCARD); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1561 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "SlowRcv", Event, |
| 1562 | RcvDataBufferHdr, RcvDataBufferHdr->State, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1563 | /*RcvDataBufferHdr->VirtualAddress*/ 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1564 | /* Drop rcv frames in non-running state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1565 | switch (adapter->State) { |
| 1566 | case SXG_STATE_RUNNING: |
| 1567 | break; |
| 1568 | case SXG_STATE_PAUSING: |
| 1569 | case SXG_STATE_PAUSED: |
| 1570 | case SXG_STATE_HALTING: |
| 1571 | goto drop; |
| 1572 | default: |
| 1573 | ASSERT(0); |
| 1574 | goto drop; |
| 1575 | } |
| 1576 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1577 | /* |
| 1578 | * memcpy(SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1579 | * RcvDataBufferHdr->VirtualAddress, Event->Length); |
| 1580 | */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1581 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1582 | /* Change buffer state to UPSTREAM */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1583 | RcvDataBufferHdr->State = SXG_BUFFER_UPSTREAM; |
| 1584 | if (Event->Status & EVENT_STATUS_RCVERR) { |
| 1585 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RcvError", |
| 1586 | Event, Event->Status, Event->HostHandle, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1587 | /* XXXTODO - Remove this print later */ |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1588 | DBG_ERROR("SXG: Receive error %x\n", *(u32 *) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1589 | SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr)); |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1590 | sxg_process_rcv_error(adapter, *(u32 *) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1591 | SXG_RECEIVE_DATA_LOCATION |
| 1592 | (RcvDataBufferHdr)); |
| 1593 | goto drop; |
| 1594 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1595 | #if XXXTODO /* VLAN stuff */ |
| 1596 | /* If there's a VLAN tag, extract it and validate it */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1597 | if (((struct ether_header *) |
| 1598 | (SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr)))->EtherType |
| 1599 | == ETHERTYPE_VLAN) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1600 | if (SxgExtractVlanHeader(adapter, RcvDataBufferHdr, Event) != |
| 1601 | STATUS_SUCCESS) { |
| 1602 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, |
| 1603 | "BadVlan", Event, |
| 1604 | SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1605 | Event->Length, 0); |
| 1606 | goto drop; |
| 1607 | } |
| 1608 | } |
| 1609 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1610 | /* Dumb-nic frame. See if it passes our mac filter and update stats */ |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1611 | |
| 1612 | /* |
| 1613 | * ASK if (!sxg_mac_filter(adapter, |
| 1614 | * SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1615 | * Event->Length)) { |
| 1616 | * SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RcvFiltr", |
| 1617 | * Event, SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1618 | * Event->Length, 0); |
| 1619 | * goto drop; |
| 1620 | * } |
| 1621 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1622 | |
| 1623 | Packet = RcvDataBufferHdr->SxgDumbRcvPacket; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1624 | SXG_ADJUST_RCV_PACKET(Packet, RcvDataBufferHdr, Event); |
| 1625 | Packet->protocol = eth_type_trans(Packet, adapter->netdev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1626 | |
| 1627 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "DumbRcv", |
| 1628 | RcvDataBufferHdr, Packet, Event->Length, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1629 | /* Lastly adjust the receive packet length. */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1630 | RcvDataBufferHdr->SxgDumbRcvPacket = NULL; |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1631 | RcvDataBufferHdr->PhysicalAddress = (dma_addr_t)NULL; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1632 | SXG_ALLOCATE_RCV_PACKET(adapter, RcvDataBufferHdr, BufferSize); |
| 1633 | if (RcvDataBufferHdr->skb) |
| 1634 | { |
| 1635 | spin_lock(&adapter->RcvQLock); |
| 1636 | SXG_FREE_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1637 | // adapter->RcvBuffersOnCard ++; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1638 | spin_unlock(&adapter->RcvQLock); |
| 1639 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1640 | return (Packet); |
| 1641 | |
| 1642 | drop: |
| 1643 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DropRcv", |
| 1644 | RcvDataBufferHdr, Event->Length, 0, 0); |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1645 | adapter->stats.rx_dropped++; |
| 1646 | // adapter->Stats.RcvDiscards++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1647 | spin_lock(&adapter->RcvQLock); |
| 1648 | SXG_FREE_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
| 1649 | spin_unlock(&adapter->RcvQLock); |
| 1650 | return (NULL); |
| 1651 | } |
| 1652 | |
| 1653 | /* |
| 1654 | * sxg_process_rcv_error - process receive error and update |
| 1655 | * stats |
| 1656 | * |
| 1657 | * Arguments: |
| 1658 | * adapter - Adapter structure |
| 1659 | * ErrorStatus - 4-byte receive error status |
| 1660 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1661 | * Return Value : None |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1662 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1663 | static void sxg_process_rcv_error(struct adapter_t *adapter, u32 ErrorStatus) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1664 | { |
| 1665 | u32 Error; |
| 1666 | |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1667 | adapter->stats.rx_errors++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1668 | |
| 1669 | if (ErrorStatus & SXG_RCV_STATUS_TRANSPORT_ERROR) { |
| 1670 | Error = ErrorStatus & SXG_RCV_STATUS_TRANSPORT_MASK; |
| 1671 | switch (Error) { |
| 1672 | case SXG_RCV_STATUS_TRANSPORT_CSUM: |
| 1673 | adapter->Stats.TransportCsum++; |
| 1674 | break; |
| 1675 | case SXG_RCV_STATUS_TRANSPORT_UFLOW: |
| 1676 | adapter->Stats.TransportUflow++; |
| 1677 | break; |
| 1678 | case SXG_RCV_STATUS_TRANSPORT_HDRLEN: |
| 1679 | adapter->Stats.TransportHdrLen++; |
| 1680 | break; |
| 1681 | } |
| 1682 | } |
| 1683 | if (ErrorStatus & SXG_RCV_STATUS_NETWORK_ERROR) { |
| 1684 | Error = ErrorStatus & SXG_RCV_STATUS_NETWORK_MASK; |
| 1685 | switch (Error) { |
| 1686 | case SXG_RCV_STATUS_NETWORK_CSUM: |
| 1687 | adapter->Stats.NetworkCsum++; |
| 1688 | break; |
| 1689 | case SXG_RCV_STATUS_NETWORK_UFLOW: |
| 1690 | adapter->Stats.NetworkUflow++; |
| 1691 | break; |
| 1692 | case SXG_RCV_STATUS_NETWORK_HDRLEN: |
| 1693 | adapter->Stats.NetworkHdrLen++; |
| 1694 | break; |
| 1695 | } |
| 1696 | } |
| 1697 | if (ErrorStatus & SXG_RCV_STATUS_PARITY) { |
| 1698 | adapter->Stats.Parity++; |
| 1699 | } |
| 1700 | if (ErrorStatus & SXG_RCV_STATUS_LINK_ERROR) { |
| 1701 | Error = ErrorStatus & SXG_RCV_STATUS_LINK_MASK; |
| 1702 | switch (Error) { |
| 1703 | case SXG_RCV_STATUS_LINK_PARITY: |
| 1704 | adapter->Stats.LinkParity++; |
| 1705 | break; |
| 1706 | case SXG_RCV_STATUS_LINK_EARLY: |
| 1707 | adapter->Stats.LinkEarly++; |
| 1708 | break; |
| 1709 | case SXG_RCV_STATUS_LINK_BUFOFLOW: |
| 1710 | adapter->Stats.LinkBufOflow++; |
| 1711 | break; |
| 1712 | case SXG_RCV_STATUS_LINK_CODE: |
| 1713 | adapter->Stats.LinkCode++; |
| 1714 | break; |
| 1715 | case SXG_RCV_STATUS_LINK_DRIBBLE: |
| 1716 | adapter->Stats.LinkDribble++; |
| 1717 | break; |
| 1718 | case SXG_RCV_STATUS_LINK_CRC: |
| 1719 | adapter->Stats.LinkCrc++; |
| 1720 | break; |
| 1721 | case SXG_RCV_STATUS_LINK_OFLOW: |
| 1722 | adapter->Stats.LinkOflow++; |
| 1723 | break; |
| 1724 | case SXG_RCV_STATUS_LINK_UFLOW: |
| 1725 | adapter->Stats.LinkUflow++; |
| 1726 | break; |
| 1727 | } |
| 1728 | } |
| 1729 | } |
| 1730 | |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1731 | #if 0 /* Find out if this code will be needed in future */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1732 | /* |
| 1733 | * sxg_mac_filter |
| 1734 | * |
| 1735 | * Arguments: |
| 1736 | * adapter - Adapter structure |
| 1737 | * pether - Ethernet header |
| 1738 | * length - Frame length |
| 1739 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1740 | * Return Value : TRUE if the frame is to be allowed |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1741 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1742 | static bool sxg_mac_filter(struct adapter_t *adapter, |
| 1743 | struct ether_header *EtherHdr, ushort length) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1744 | { |
| 1745 | bool EqualAddr; |
| 1746 | |
| 1747 | if (SXG_MULTICAST_PACKET(EtherHdr)) { |
| 1748 | if (SXG_BROADCAST_PACKET(EtherHdr)) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1749 | /* broadcast */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1750 | if (adapter->MacFilter & MAC_BCAST) { |
| 1751 | adapter->Stats.DumbRcvBcastPkts++; |
| 1752 | adapter->Stats.DumbRcvBcastBytes += length; |
| 1753 | adapter->Stats.DumbRcvPkts++; |
| 1754 | adapter->Stats.DumbRcvBytes += length; |
| 1755 | return (TRUE); |
| 1756 | } |
| 1757 | } else { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1758 | /* multicast */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1759 | if (adapter->MacFilter & MAC_ALLMCAST) { |
| 1760 | adapter->Stats.DumbRcvMcastPkts++; |
| 1761 | adapter->Stats.DumbRcvMcastBytes += length; |
| 1762 | adapter->Stats.DumbRcvPkts++; |
| 1763 | adapter->Stats.DumbRcvBytes += length; |
| 1764 | return (TRUE); |
| 1765 | } |
| 1766 | if (adapter->MacFilter & MAC_MCAST) { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1767 | struct sxg_multicast_address *MulticastAddrs = |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1768 | adapter->MulticastAddrs; |
| 1769 | while (MulticastAddrs) { |
| 1770 | ETHER_EQ_ADDR(MulticastAddrs->Address, |
| 1771 | EtherHdr->ether_dhost, |
| 1772 | EqualAddr); |
| 1773 | if (EqualAddr) { |
| 1774 | adapter->Stats. |
| 1775 | DumbRcvMcastPkts++; |
| 1776 | adapter->Stats. |
| 1777 | DumbRcvMcastBytes += length; |
| 1778 | adapter->Stats.DumbRcvPkts++; |
| 1779 | adapter->Stats.DumbRcvBytes += |
| 1780 | length; |
| 1781 | return (TRUE); |
| 1782 | } |
| 1783 | MulticastAddrs = MulticastAddrs->Next; |
| 1784 | } |
| 1785 | } |
| 1786 | } |
| 1787 | } else if (adapter->MacFilter & MAC_DIRECTED) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1788 | /* |
| 1789 | * Not broadcast or multicast. Must be directed at us or |
| 1790 | * the card is in promiscuous mode. Either way, consider it |
| 1791 | * ours if MAC_DIRECTED is set |
| 1792 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1793 | adapter->Stats.DumbRcvUcastPkts++; |
| 1794 | adapter->Stats.DumbRcvUcastBytes += length; |
| 1795 | adapter->Stats.DumbRcvPkts++; |
| 1796 | adapter->Stats.DumbRcvBytes += length; |
| 1797 | return (TRUE); |
| 1798 | } |
| 1799 | if (adapter->MacFilter & MAC_PROMISC) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1800 | /* Whatever it is, keep it. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1801 | adapter->Stats.DumbRcvPkts++; |
| 1802 | adapter->Stats.DumbRcvBytes += length; |
| 1803 | return (TRUE); |
| 1804 | } |
| 1805 | adapter->Stats.RcvDiscards++; |
| 1806 | return (FALSE); |
| 1807 | } |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 1808 | #endif |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1809 | static int sxg_register_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1810 | { |
| 1811 | if (!adapter->intrregistered) { |
| 1812 | int retval; |
| 1813 | |
| 1814 | DBG_ERROR |
| 1815 | ("sxg: %s AllocAdaptRsrcs adapter[%p] dev->irq[%x] %x\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1816 | __func__, adapter, adapter->netdev->irq, NR_IRQS); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1817 | |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1818 | spin_unlock_irqrestore(&sxg_global.driver_lock, |
| 1819 | sxg_global.flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1820 | |
| 1821 | retval = request_irq(adapter->netdev->irq, |
| 1822 | &sxg_isr, |
| 1823 | IRQF_SHARED, |
| 1824 | adapter->netdev->name, adapter->netdev); |
| 1825 | |
| 1826 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
| 1827 | |
| 1828 | if (retval) { |
| 1829 | DBG_ERROR("sxg: request_irq (%s) FAILED [%x]\n", |
| 1830 | adapter->netdev->name, retval); |
| 1831 | return (retval); |
| 1832 | } |
| 1833 | adapter->intrregistered = 1; |
| 1834 | adapter->IntRegistered = TRUE; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1835 | /* Disable RSS with line-based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1836 | adapter->MsiEnabled = FALSE; |
| 1837 | adapter->RssEnabled = FALSE; |
| 1838 | DBG_ERROR("sxg: %s AllocAdaptRsrcs adapter[%p] dev->irq[%x]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1839 | __func__, adapter, adapter->netdev->irq); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1840 | } |
| 1841 | return (STATUS_SUCCESS); |
| 1842 | } |
| 1843 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1844 | static void sxg_deregister_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1845 | { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1846 | DBG_ERROR("sxg: %s ENTER adapter[%p]\n", __func__, adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1847 | #if XXXTODO |
| 1848 | slic_init_cleanup(adapter); |
| 1849 | #endif |
| 1850 | memset(&adapter->stats, 0, sizeof(struct net_device_stats)); |
| 1851 | adapter->error_interrupts = 0; |
| 1852 | adapter->rcv_interrupts = 0; |
| 1853 | adapter->xmit_interrupts = 0; |
| 1854 | adapter->linkevent_interrupts = 0; |
| 1855 | adapter->upr_interrupts = 0; |
| 1856 | adapter->num_isrs = 0; |
| 1857 | adapter->xmit_completes = 0; |
| 1858 | adapter->rcv_broadcasts = 0; |
| 1859 | adapter->rcv_multicasts = 0; |
| 1860 | adapter->rcv_unicasts = 0; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1861 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1862 | } |
| 1863 | |
| 1864 | /* |
| 1865 | * sxg_if_init |
| 1866 | * |
| 1867 | * Perform initialization of our slic interface. |
| 1868 | * |
| 1869 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1870 | static int sxg_if_init(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1871 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1872 | struct net_device *dev = adapter->netdev; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1873 | int status = 0; |
| 1874 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1875 | DBG_ERROR("sxg: %s (%s) ENTER states[%d:%d] flags[%x]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1876 | __func__, adapter->netdev->name, |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1877 | adapter->state, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1878 | adapter->linkstate, dev->flags); |
| 1879 | |
| 1880 | /* adapter should be down at this point */ |
| 1881 | if (adapter->state != ADAPT_DOWN) { |
| 1882 | DBG_ERROR("sxg_if_init adapter->state != ADAPT_DOWN\n"); |
| 1883 | return (-EIO); |
| 1884 | } |
| 1885 | ASSERT(adapter->linkstate == LINK_DOWN); |
| 1886 | |
| 1887 | adapter->devflags_prev = dev->flags; |
| 1888 | adapter->macopts = MAC_DIRECTED; |
| 1889 | if (dev->flags) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1890 | DBG_ERROR("sxg: %s (%s) Set MAC options: ", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1891 | adapter->netdev->name); |
| 1892 | if (dev->flags & IFF_BROADCAST) { |
| 1893 | adapter->macopts |= MAC_BCAST; |
| 1894 | DBG_ERROR("BCAST "); |
| 1895 | } |
| 1896 | if (dev->flags & IFF_PROMISC) { |
| 1897 | adapter->macopts |= MAC_PROMISC; |
| 1898 | DBG_ERROR("PROMISC "); |
| 1899 | } |
| 1900 | if (dev->flags & IFF_ALLMULTI) { |
| 1901 | adapter->macopts |= MAC_ALLMCAST; |
| 1902 | DBG_ERROR("ALL_MCAST "); |
| 1903 | } |
| 1904 | if (dev->flags & IFF_MULTICAST) { |
| 1905 | adapter->macopts |= MAC_MCAST; |
| 1906 | DBG_ERROR("MCAST "); |
| 1907 | } |
| 1908 | DBG_ERROR("\n"); |
| 1909 | } |
| 1910 | status = sxg_register_interrupt(adapter); |
| 1911 | if (status != STATUS_SUCCESS) { |
| 1912 | DBG_ERROR("sxg_if_init: sxg_register_interrupt FAILED %x\n", |
| 1913 | status); |
| 1914 | sxg_deregister_interrupt(adapter); |
| 1915 | return (status); |
| 1916 | } |
| 1917 | |
| 1918 | adapter->state = ADAPT_UP; |
| 1919 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1920 | /* clear any pending events, then enable interrupts */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1921 | DBG_ERROR("sxg: %s ENABLE interrupts(slic)\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1922 | |
| 1923 | return (STATUS_SUCCESS); |
| 1924 | } |
| 1925 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1926 | static int sxg_entry_open(struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1927 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1928 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1929 | int status; |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 1930 | static int turn; |
| 1931 | |
| 1932 | if (turn) { |
| 1933 | sxg_second_open(adapter->netdev); |
| 1934 | |
| 1935 | return STATUS_SUCCESS; |
| 1936 | } |
| 1937 | |
| 1938 | turn++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1939 | |
| 1940 | ASSERT(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1941 | DBG_ERROR("sxg: %s adapter->activated[%d]\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1942 | adapter->activated); |
| 1943 | DBG_ERROR |
| 1944 | ("sxg: %s (%s): [jiffies[%lx] cpu %d] dev[%p] adapt[%p] port[%d]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1945 | __func__, adapter->netdev->name, jiffies, smp_processor_id(), |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1946 | adapter->netdev, adapter, adapter->port); |
| 1947 | |
| 1948 | netif_stop_queue(adapter->netdev); |
| 1949 | |
| 1950 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
| 1951 | if (!adapter->activated) { |
| 1952 | sxg_global.num_sxg_ports_active++; |
| 1953 | adapter->activated = 1; |
| 1954 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1955 | /* Initialize the adapter */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1956 | DBG_ERROR("sxg: %s ENTER sxg_initialize_adapter\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1957 | status = sxg_initialize_adapter(adapter); |
| 1958 | DBG_ERROR("sxg: %s EXIT sxg_initialize_adapter status[%x]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1959 | __func__, status); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1960 | |
| 1961 | if (status == STATUS_SUCCESS) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1962 | DBG_ERROR("sxg: %s ENTER sxg_if_init\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1963 | status = sxg_if_init(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1964 | DBG_ERROR("sxg: %s EXIT sxg_if_init status[%x]\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1965 | status); |
| 1966 | } |
| 1967 | |
| 1968 | if (status != STATUS_SUCCESS) { |
| 1969 | if (adapter->activated) { |
| 1970 | sxg_global.num_sxg_ports_active--; |
| 1971 | adapter->activated = 0; |
| 1972 | } |
| 1973 | spin_unlock_irqrestore(&sxg_global.driver_lock, |
| 1974 | sxg_global.flags); |
| 1975 | return (status); |
| 1976 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1977 | DBG_ERROR("sxg: %s ENABLE ALL INTERRUPTS\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1978 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1979 | /* Enable interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1980 | SXG_ENABLE_ALL_INTERRUPTS(adapter); |
| 1981 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1982 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1983 | |
| 1984 | spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags); |
| 1985 | return STATUS_SUCCESS; |
| 1986 | } |
| 1987 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 1988 | int sxg_second_open(struct net_device * dev) |
| 1989 | { |
| 1990 | struct adapter_t *adapter = (struct adapter_t*) netdev_priv(dev); |
| 1991 | |
| 1992 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
| 1993 | netif_start_queue(adapter->netdev); |
| 1994 | adapter->state = ADAPT_UP; |
| 1995 | adapter->linkstate = LINK_UP; |
| 1996 | |
| 1997 | /* Re-enable interrupts */ |
| 1998 | SXG_ENABLE_ALL_INTERRUPTS(adapter); |
| 1999 | |
| 2000 | netif_carrier_on(dev); |
| 2001 | spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags); |
| 2002 | sxg_register_interrupt(adapter); |
| 2003 | return (STATUS_SUCCESS); |
| 2004 | |
| 2005 | } |
| 2006 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2007 | static void __devexit sxg_entry_remove(struct pci_dev *pcidev) |
| 2008 | { |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2009 | u32 mmio_start = 0; |
| 2010 | u32 mmio_len = 0; |
| 2011 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2012 | struct net_device *dev = pci_get_drvdata(pcidev); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2013 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2014 | |
| 2015 | flush_scheduled_work(); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2016 | |
| 2017 | /* Deallocate Resources */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2018 | unregister_netdev(dev); |
| 2019 | sxg_free_resources(adapter); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2020 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2021 | ASSERT(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2022 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2023 | mmio_start = pci_resource_start(pcidev, 0); |
| 2024 | mmio_len = pci_resource_len(pcidev, 0); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2025 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2026 | DBG_ERROR("sxg: %s rel_region(0) start[%x] len[%x]\n", __FUNCTION__, |
| 2027 | mmio_start, mmio_len); |
| 2028 | release_mem_region(mmio_start, mmio_len); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2029 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2030 | mmio_start = pci_resource_start(pcidev, 2); |
| 2031 | mmio_len = pci_resource_len(pcidev, 2); |
| 2032 | |
| 2033 | DBG_ERROR("sxg: %s rel_region(2) start[%x] len[%x]\n", __FUNCTION__, |
| 2034 | mmio_start, mmio_len); |
| 2035 | release_mem_region(mmio_start, mmio_len); |
| 2036 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2037 | pci_disable_device(pcidev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2038 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2039 | DBG_ERROR("sxg: %s deallocate device\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2040 | kfree(dev); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2041 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2042 | } |
| 2043 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2044 | static int sxg_entry_halt(struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2045 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2046 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2047 | |
| 2048 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2049 | DBG_ERROR("sxg: %s (%s) ENTER\n", __func__, dev->name); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2050 | |
| 2051 | netif_stop_queue(adapter->netdev); |
| 2052 | adapter->state = ADAPT_DOWN; |
| 2053 | adapter->linkstate = LINK_DOWN; |
| 2054 | adapter->devflags_prev = 0; |
| 2055 | DBG_ERROR("sxg: %s (%s) set adapter[%p] state to ADAPT_DOWN(%d)\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2056 | __func__, dev->name, adapter, adapter->state); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2057 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2058 | DBG_ERROR("sxg: %s (%s) EXIT\n", __func__, dev->name); |
| 2059 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2060 | |
| 2061 | /* Disable interrupts */ |
| 2062 | SXG_DISABLE_ALL_INTERRUPTS(adapter); |
| 2063 | |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2064 | netif_carrier_off(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2065 | spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2066 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2067 | sxg_deregister_interrupt(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2068 | return (STATUS_SUCCESS); |
| 2069 | } |
| 2070 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2071 | static int sxg_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2072 | { |
| 2073 | ASSERT(rq); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2074 | /* DBG_ERROR("sxg: %s cmd[%x] rq[%p] dev[%p]\n", __func__, cmd, rq, dev);*/ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2075 | switch (cmd) { |
| 2076 | case SIOCSLICSETINTAGG: |
| 2077 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2078 | /* struct adapter_t *adapter = (struct adapter_t *) |
| 2079 | * netdev_priv(dev); |
| 2080 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2081 | u32 data[7]; |
| 2082 | u32 intagg; |
| 2083 | |
| 2084 | if (copy_from_user(data, rq->ifr_data, 28)) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2085 | DBG_ERROR("copy_from_user FAILED getting \ |
| 2086 | initial params\n"); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2087 | return -EFAULT; |
| 2088 | } |
| 2089 | intagg = data[0]; |
| 2090 | printk(KERN_EMERG |
| 2091 | "%s: set interrupt aggregation to %d\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2092 | __func__, intagg); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2093 | return 0; |
| 2094 | } |
| 2095 | |
| 2096 | default: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2097 | /* DBG_ERROR("sxg: %s UNSUPPORTED[%x]\n", __func__, cmd); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2098 | return -EOPNOTSUPP; |
| 2099 | } |
| 2100 | return 0; |
| 2101 | } |
| 2102 | |
| 2103 | #define NORMAL_ETHFRAME 0 |
| 2104 | |
| 2105 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2106 | * sxg_send_packets - Send a skb packet |
| 2107 | * |
| 2108 | * Arguments: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2109 | * skb - The packet to send |
| 2110 | * dev - Our linux net device that refs our adapter |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2111 | * |
| 2112 | * Return: |
| 2113 | * 0 regardless of outcome XXXTODO refer to e1000 driver |
| 2114 | */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2115 | static int sxg_send_packets(struct sk_buff *skb, struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2116 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2117 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2118 | u32 status = STATUS_SUCCESS; |
| 2119 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2120 | /* |
| 2121 | * DBG_ERROR("sxg: %s ENTER sxg_send_packets skb[%p]\n", __FUNCTION__, |
| 2122 | * skb); |
| 2123 | */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2124 | printk("ASK:sxg_send_packets: skb[%p]\n", skb); |
| 2125 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2126 | /* Check the adapter state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2127 | switch (adapter->State) { |
| 2128 | case SXG_STATE_INITIALIZING: |
| 2129 | case SXG_STATE_HALTED: |
| 2130 | case SXG_STATE_SHUTDOWN: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2131 | ASSERT(0); /* unexpected */ |
| 2132 | /* fall through */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2133 | case SXG_STATE_RESETTING: |
| 2134 | case SXG_STATE_SLEEP: |
| 2135 | case SXG_STATE_BOOTDIAG: |
| 2136 | case SXG_STATE_DIAG: |
| 2137 | case SXG_STATE_HALTING: |
| 2138 | status = STATUS_FAILURE; |
| 2139 | break; |
| 2140 | case SXG_STATE_RUNNING: |
| 2141 | if (adapter->LinkState != SXG_LINK_UP) { |
| 2142 | status = STATUS_FAILURE; |
| 2143 | } |
| 2144 | break; |
| 2145 | default: |
| 2146 | ASSERT(0); |
| 2147 | status = STATUS_FAILURE; |
| 2148 | } |
| 2149 | if (status != STATUS_SUCCESS) { |
| 2150 | goto xmit_fail; |
| 2151 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2152 | /* send a packet */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2153 | status = sxg_transmit_packet(adapter, skb); |
| 2154 | if (status == STATUS_SUCCESS) { |
| 2155 | goto xmit_done; |
| 2156 | } |
| 2157 | |
| 2158 | xmit_fail: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2159 | /* reject & complete all the packets if they cant be sent */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2160 | if (status != STATUS_SUCCESS) { |
| 2161 | #if XXXTODO |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2162 | /* sxg_send_packets_fail(adapter, skb, status); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2163 | #else |
| 2164 | SXG_DROP_DUMB_SEND(adapter, skb); |
| 2165 | adapter->stats.tx_dropped++; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2166 | return NETDEV_TX_BUSY; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2167 | #endif |
| 2168 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2169 | DBG_ERROR("sxg: %s EXIT sxg_send_packets status[%x]\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2170 | status); |
| 2171 | |
| 2172 | xmit_done: |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2173 | return NETDEV_TX_OK; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2174 | } |
| 2175 | |
| 2176 | /* |
| 2177 | * sxg_transmit_packet |
| 2178 | * |
| 2179 | * This function transmits a single packet. |
| 2180 | * |
| 2181 | * Arguments - |
| 2182 | * adapter - Pointer to our adapter structure |
| 2183 | * skb - The packet to be sent |
| 2184 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2185 | * Return - STATUS of send |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2186 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2187 | static int sxg_transmit_packet(struct adapter_t *adapter, struct sk_buff *skb) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2188 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2189 | struct sxg_x64_sgl *pSgl; |
| 2190 | struct sxg_scatter_gather *SxgSgl; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2191 | unsigned long sgl_flags; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2192 | /* void *SglBuffer; */ |
| 2193 | /* u32 SglBufferLength; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2194 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2195 | /* |
| 2196 | * The vast majority of work is done in the shared |
| 2197 | * sxg_dumb_sgl routine. |
| 2198 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2199 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbSend", |
| 2200 | adapter, skb, 0, 0); |
| 2201 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2202 | /* Allocate a SGL buffer */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2203 | SXG_GET_SGL_BUFFER(adapter, SxgSgl, 0); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2204 | if (!SxgSgl) { |
| 2205 | adapter->Stats.NoSglBuf++; |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 2206 | adapter->stats.tx_errors++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2207 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "SndPktF1", |
| 2208 | adapter, skb, 0, 0); |
| 2209 | return (STATUS_RESOURCES); |
| 2210 | } |
| 2211 | ASSERT(SxgSgl->adapter == adapter); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2212 | /*SglBuffer = SXG_SGL_BUFFER(SxgSgl); |
| 2213 | SglBufferLength = SXG_SGL_BUF_SIZE; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2214 | SxgSgl->VlanTag.VlanTci = 0; |
| 2215 | SxgSgl->VlanTag.VlanTpid = 0; |
| 2216 | SxgSgl->Type = SXG_SGL_DUMB; |
| 2217 | SxgSgl->DumbPacket = skb; |
| 2218 | pSgl = NULL; |
| 2219 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2220 | /* Call the common sxg_dumb_sgl routine to complete the send. */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2221 | return (sxg_dumb_sgl(pSgl, SxgSgl)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2222 | } |
| 2223 | |
| 2224 | /* |
| 2225 | * sxg_dumb_sgl |
| 2226 | * |
| 2227 | * Arguments: |
| 2228 | * pSgl - |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2229 | * SxgSgl - struct sxg_scatter_gather |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2230 | * |
| 2231 | * Return Value: |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2232 | * Status of send operation. |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2233 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2234 | static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2235 | struct sxg_scatter_gather *SxgSgl) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2236 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2237 | struct adapter_t *adapter = SxgSgl->adapter; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2238 | struct sk_buff *skb = SxgSgl->DumbPacket; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2239 | /* For now, all dumb-nic sends go on RSS queue zero */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2240 | struct sxg_xmt_ring *XmtRing = &adapter->XmtRings[0]; |
| 2241 | struct sxg_ring_info *XmtRingInfo = &adapter->XmtRingZeroInfo; |
| 2242 | struct sxg_cmd *XmtCmd = NULL; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2243 | /* u32 Index = 0; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2244 | u32 DataLength = skb->len; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2245 | /* unsigned int BufLen; */ |
| 2246 | /* u32 SglOffset; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2247 | u64 phys_addr; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2248 | unsigned long flags; |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2249 | unsigned long queue_id=0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2250 | |
| 2251 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbSgl", |
| 2252 | pSgl, SxgSgl, 0, 0); |
| 2253 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2254 | /* Set aside a pointer to the sgl */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2255 | SxgSgl->pSgl = pSgl; |
| 2256 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2257 | /* Sanity check that our SGL format is as we expect. */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2258 | ASSERT(sizeof(struct sxg_x64_sge) == sizeof(struct sxg_x64_sge)); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2259 | /* Shouldn't be a vlan tag on this frame */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2260 | ASSERT(SxgSgl->VlanTag.VlanTci == 0); |
| 2261 | ASSERT(SxgSgl->VlanTag.VlanTpid == 0); |
| 2262 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2263 | /* |
| 2264 | * From here below we work with the SGL placed in our |
| 2265 | * buffer. |
| 2266 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2267 | |
| 2268 | SxgSgl->Sgl.NumberOfElements = 1; |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2269 | /* |
| 2270 | * Set ucode Queue ID based on bottom bits of destination TCP port. |
| 2271 | * This Queue ID splits slowpath/dumb-nic packet processing across |
| 2272 | * multiple threads on the card to improve performance. It is split |
| 2273 | * using the TCP port to avoid out-of-order packets that can result |
| 2274 | * from multithreaded processing. We use the destination port because |
| 2275 | * we expect to be run on a server, so in nearly all cases the local |
| 2276 | * port is likely to be constant (well-known server port) and the |
| 2277 | * remote port is likely to be random. The exception to this is iSCSI, |
| 2278 | * in which case we use the sport instead. Note |
| 2279 | * that original attempt at XOR'ing source and dest port resulted in |
| 2280 | * poor balance on NTTTCP/iometer applications since they tend to |
| 2281 | * line up (even-even, odd-odd..). |
| 2282 | */ |
| 2283 | |
| 2284 | if (skb->protocol == htons(ETH_P_IP)) { |
| 2285 | struct iphdr *ip; |
| 2286 | |
| 2287 | ip = ip_hdr(skb); |
| 2288 | if ((ip->protocol == IPPROTO_TCP)&&(DataLength >= sizeof( |
| 2289 | struct tcphdr))){ |
| 2290 | queue_id = ((ntohs(tcp_hdr(skb)->dest) == ISCSI_PORT) ? |
| 2291 | (ntohs (tcp_hdr(skb)->source) & |
| 2292 | SXG_LARGE_SEND_QUEUE_MASK): |
| 2293 | (ntohs(tcp_hdr(skb)->dest) & |
| 2294 | SXG_LARGE_SEND_QUEUE_MASK)); |
| 2295 | } |
| 2296 | } else if (skb->protocol == htons(ETH_P_IPV6)) { |
| 2297 | if ( (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) && (DataLength >= |
| 2298 | sizeof(struct tcphdr)) ) { |
| 2299 | queue_id = ((ntohs(tcp_hdr(skb)->dest) == ISCSI_PORT) ? |
| 2300 | (ntohs (tcp_hdr(skb)->source) & |
| 2301 | SXG_LARGE_SEND_QUEUE_MASK): |
| 2302 | (ntohs(tcp_hdr(skb)->dest) & |
| 2303 | SXG_LARGE_SEND_QUEUE_MASK)); |
| 2304 | } |
| 2305 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2306 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2307 | /* Grab the spinlock and acquire a command */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2308 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2309 | SXG_GET_CMD(XmtRing, XmtRingInfo, XmtCmd, SxgSgl); |
| 2310 | if (XmtCmd == NULL) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2311 | /* |
| 2312 | * Call sxg_complete_slow_send to see if we can |
| 2313 | * free up any XmtRingZero entries and then try again |
| 2314 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2315 | |
| 2316 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
| 2317 | sxg_complete_slow_send(adapter, 0); |
| 2318 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2319 | SXG_GET_CMD(XmtRing, XmtRingInfo, XmtCmd, SxgSgl); |
| 2320 | if (XmtCmd == NULL) { |
| 2321 | adapter->Stats.XmtZeroFull++; |
| 2322 | goto abortcmd; |
| 2323 | } |
| 2324 | } |
| 2325 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbCmd", |
| 2326 | XmtCmd, XmtRingInfo->Head, XmtRingInfo->Tail, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2327 | /* Update stats */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2328 | adapter->stats.tx_packets++; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2329 | adapter->stats.tx_bytes += DataLength; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2330 | #if XXXTODO /* Stats stuff */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2331 | if (SXG_MULTICAST_PACKET(EtherHdr)) { |
| 2332 | if (SXG_BROADCAST_PACKET(EtherHdr)) { |
| 2333 | adapter->Stats.DumbXmtBcastPkts++; |
| 2334 | adapter->Stats.DumbXmtBcastBytes += DataLength; |
| 2335 | } else { |
| 2336 | adapter->Stats.DumbXmtMcastPkts++; |
| 2337 | adapter->Stats.DumbXmtMcastBytes += DataLength; |
| 2338 | } |
| 2339 | } else { |
| 2340 | adapter->Stats.DumbXmtUcastPkts++; |
| 2341 | adapter->Stats.DumbXmtUcastBytes += DataLength; |
| 2342 | } |
| 2343 | #endif |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2344 | /* |
| 2345 | * Fill in the command |
| 2346 | * Copy out the first SGE to the command and adjust for offset |
| 2347 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2348 | phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 2349 | PCI_DMA_TODEVICE); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2350 | memset(XmtCmd, '\0', sizeof(*XmtCmd)); |
| 2351 | XmtCmd->Buffer.FirstSgeAddress = phys_addr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2352 | XmtCmd->Buffer.FirstSgeLength = DataLength; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2353 | XmtCmd->Buffer.SgeOffset = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2354 | XmtCmd->Buffer.TotalLength = DataLength; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2355 | XmtCmd->SgEntries = 1; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2356 | XmtCmd->Flags = 0; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2357 | /* |
| 2358 | * Advance transmit cmd descripter by 1. |
| 2359 | * NOTE - See comments in SxgTcpOutput where we write |
| 2360 | * to the XmtCmd register regarding CPU ID values and/or |
| 2361 | * multiple commands. |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2362 | * Top 16 bits specify queue_id. See comments about queue_id above |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2363 | */ |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2364 | /* Four queues at the moment */ |
| 2365 | ASSERT((queue_id & ~SXG_LARGE_SEND_QUEUE_MASK) == 0); |
| 2366 | WRITE_REG(adapter->UcodeRegs[0].XmtCmd, ((queue_id << 16) | 1), TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2367 | adapter->Stats.XmtQLen++; /* Stats within lock */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2368 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2369 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDumSgl2", |
| 2370 | XmtCmd, pSgl, SxgSgl, 0); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2371 | return STATUS_SUCCESS; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2372 | |
| 2373 | abortcmd: |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2374 | /* |
| 2375 | * NOTE - Only jump to this label AFTER grabbing the |
| 2376 | * XmtZeroLock, and DO NOT DROP IT between the |
| 2377 | * command allocation and the following abort. |
| 2378 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2379 | if (XmtCmd) { |
| 2380 | SXG_ABORT_CMD(XmtRingInfo); |
| 2381 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2382 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2383 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2384 | /* |
| 2385 | * failsgl: |
| 2386 | * Jump to this label if failure occurs before the |
| 2387 | * XmtZeroLock is grabbed |
| 2388 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2389 | adapter->stats.tx_errors++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2390 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "DumSGFal", |
| 2391 | pSgl, SxgSgl, XmtRingInfo->Head, XmtRingInfo->Tail); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2392 | /* SxgSgl->DumbPacket is the skb */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2393 | // SXG_COMPLETE_DUMB_SEND(adapter, SxgSgl->DumbPacket); |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 2394 | |
| 2395 | return STATUS_FAILURE; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2396 | } |
| 2397 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2398 | /* |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2399 | * Link management functions |
| 2400 | * |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2401 | * sxg_initialize_link - Initialize the link stuff |
| 2402 | * |
| 2403 | * Arguments - |
| 2404 | * adapter - A pointer to our adapter structure |
| 2405 | * |
| 2406 | * Return |
| 2407 | * status |
| 2408 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2409 | static int sxg_initialize_link(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2410 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2411 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2412 | u32 Value; |
| 2413 | u32 ConfigData; |
| 2414 | u32 MaxFrame; |
| 2415 | int status; |
| 2416 | |
| 2417 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "InitLink", |
| 2418 | adapter, 0, 0, 0); |
| 2419 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2420 | /* Reset PHY and XGXS module */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2421 | WRITE_REG(HwRegs->LinkStatus, LS_SERDES_POWER_DOWN, TRUE); |
| 2422 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2423 | /* Reset transmit configuration register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2424 | WRITE_REG(HwRegs->XmtConfig, XMT_CONFIG_RESET, TRUE); |
| 2425 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2426 | /* Reset receive configuration register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2427 | WRITE_REG(HwRegs->RcvConfig, RCV_CONFIG_RESET, TRUE); |
| 2428 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2429 | /* Reset all MAC modules */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2430 | WRITE_REG(HwRegs->MacConfig0, AXGMAC_CFG0_SUB_RESET, TRUE); |
| 2431 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2432 | /* |
| 2433 | * Link address 0 |
| 2434 | * XXXTODO - This assumes the MAC address (0a:0b:0c:0d:0e:0f) |
| 2435 | * is stored with the first nibble (0a) in the byte 0 |
| 2436 | * of the Mac address. Possibly reverse? |
| 2437 | */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2438 | Value = *(u32 *) adapter->macaddr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2439 | WRITE_REG(HwRegs->LinkAddress0Low, Value, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2440 | /* also write the MAC address to the MAC. Endian is reversed. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2441 | WRITE_REG(HwRegs->MacAddressLow, ntohl(Value), TRUE); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2442 | Value = (*(u16 *) & adapter->macaddr[4] & 0x0000FFFF); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2443 | WRITE_REG(HwRegs->LinkAddress0High, Value | LINK_ADDRESS_ENABLE, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2444 | /* endian swap for the MAC (put high bytes in bits [31:16], swapped) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2445 | Value = ntohl(Value); |
| 2446 | WRITE_REG(HwRegs->MacAddressHigh, Value, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2447 | /* Link address 1 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2448 | WRITE_REG(HwRegs->LinkAddress1Low, 0, TRUE); |
| 2449 | WRITE_REG(HwRegs->LinkAddress1High, 0, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2450 | /* Link address 2 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2451 | WRITE_REG(HwRegs->LinkAddress2Low, 0, TRUE); |
| 2452 | WRITE_REG(HwRegs->LinkAddress2High, 0, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2453 | /* Link address 3 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2454 | WRITE_REG(HwRegs->LinkAddress3Low, 0, TRUE); |
| 2455 | WRITE_REG(HwRegs->LinkAddress3High, 0, TRUE); |
| 2456 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2457 | /* Enable MAC modules */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2458 | WRITE_REG(HwRegs->MacConfig0, 0, TRUE); |
| 2459 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2460 | /* Configure MAC */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2461 | WRITE_REG(HwRegs->MacConfig1, ( |
| 2462 | /* Allow sending of pause */ |
| 2463 | AXGMAC_CFG1_XMT_PAUSE | |
| 2464 | /* Enable XMT */ |
| 2465 | AXGMAC_CFG1_XMT_EN | |
| 2466 | /* Enable detection of pause */ |
| 2467 | AXGMAC_CFG1_RCV_PAUSE | |
| 2468 | /* Enable receive */ |
| 2469 | AXGMAC_CFG1_RCV_EN | |
| 2470 | /* short frame detection */ |
| 2471 | AXGMAC_CFG1_SHORT_ASSERT | |
| 2472 | /* Verify frame length */ |
| 2473 | AXGMAC_CFG1_CHECK_LEN | |
| 2474 | /* Generate FCS */ |
| 2475 | AXGMAC_CFG1_GEN_FCS | |
| 2476 | /* Pad frames to 64 bytes */ |
| 2477 | AXGMAC_CFG1_PAD_64), |
| 2478 | TRUE); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2479 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2480 | /* Set AXGMAC max frame length if jumbo. Not needed for standard MTU */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2481 | if (adapter->JumboEnabled) { |
| 2482 | WRITE_REG(HwRegs->MacMaxFrameLen, AXGMAC_MAXFRAME_JUMBO, TRUE); |
| 2483 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2484 | /* |
| 2485 | * AMIIM Configuration Register - |
| 2486 | * The value placed in the AXGMAC_AMIIM_CFG_HALF_CLOCK portion |
| 2487 | * (bottom bits) of this register is used to determine the MDC frequency |
| 2488 | * as specified in the A-XGMAC Design Document. This value must not be |
| 2489 | * zero. The following value (62 or 0x3E) is based on our MAC transmit |
| 2490 | * clock frequency (MTCLK) of 312.5 MHz. Given a maximum MDIO clock |
| 2491 | * frequency of 2.5 MHz (see the PHY spec), we get: |
| 2492 | * 312.5/(2*(X+1)) < 2.5 ==> X = 62. |
| 2493 | * This value happens to be the default value for this register, so we |
| 2494 | * really don't have to do this. |
| 2495 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2496 | WRITE_REG(HwRegs->MacAmiimConfig, 0x0000003E, TRUE); |
| 2497 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2498 | /* Power up and enable PHY and XAUI/XGXS/Serdes logic */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2499 | WRITE_REG(HwRegs->LinkStatus, |
| 2500 | (LS_PHY_CLR_RESET | |
| 2501 | LS_XGXS_ENABLE | |
| 2502 | LS_XGXS_CTL | LS_PHY_CLK_EN | LS_ATTN_ALARM), TRUE); |
| 2503 | DBG_ERROR("After Power Up and enable PHY in sxg_initialize_link\n"); |
| 2504 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2505 | /* |
| 2506 | * Per information given by Aeluros, wait 100 ms after removing reset. |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2507 | * It's not enough to wait for the self-clearing reset bit in reg 0 to |
| 2508 | * clear. |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2509 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2510 | mdelay(100); |
| 2511 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2512 | /* Verify the PHY has come up by checking that the Reset bit has |
| 2513 | * cleared. |
| 2514 | */ |
| 2515 | status = sxg_read_mdio_reg(adapter, |
| 2516 | MIIM_DEV_PHY_PMA, /* PHY PMA/PMD module */ |
| 2517 | PHY_PMA_CONTROL1, /* PMA/PMD control register */ |
| 2518 | &Value); |
| 2519 | DBG_ERROR("After sxg_read_mdio_reg Value[%x] fail=%x\n", Value, |
| 2520 | (Value & PMA_CONTROL1_RESET)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2521 | if (status != STATUS_SUCCESS) |
| 2522 | return (STATUS_FAILURE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2523 | if (Value & PMA_CONTROL1_RESET) /* reset complete if bit is 0 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2524 | return (STATUS_FAILURE); |
| 2525 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2526 | /* The SERDES should be initialized by now - confirm */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2527 | READ_REG(HwRegs->LinkStatus, Value); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2528 | if (Value & LS_SERDES_DOWN) /* verify SERDES is initialized */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2529 | return (STATUS_FAILURE); |
| 2530 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2531 | /* The XAUI link should also be up - confirm */ |
| 2532 | if (!(Value & LS_XAUI_LINK_UP)) /* verify XAUI link is up */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2533 | return (STATUS_FAILURE); |
| 2534 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2535 | /* Initialize the PHY */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2536 | status = sxg_phy_init(adapter); |
| 2537 | if (status != STATUS_SUCCESS) |
| 2538 | return (STATUS_FAILURE); |
| 2539 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2540 | /* Enable the Link Alarm */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2541 | |
| 2542 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module |
| 2543 | * LASI_CONTROL - LASI control register |
| 2544 | * LASI_CTL_LS_ALARM_ENABLE - enable link alarm bit |
| 2545 | */ |
| 2546 | status = sxg_write_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2547 | LASI_CONTROL, |
| 2548 | LASI_CTL_LS_ALARM_ENABLE); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2549 | if (status != STATUS_SUCCESS) |
| 2550 | return (STATUS_FAILURE); |
| 2551 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2552 | /* XXXTODO - temporary - verify bit is set */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2553 | |
| 2554 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module |
| 2555 | * LASI_CONTROL - LASI control register |
| 2556 | */ |
| 2557 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2558 | LASI_CONTROL, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2559 | &Value); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2560 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2561 | if (status != STATUS_SUCCESS) |
| 2562 | return (STATUS_FAILURE); |
| 2563 | if (!(Value & LASI_CTL_LS_ALARM_ENABLE)) { |
| 2564 | DBG_ERROR("Error! LASI Control Alarm Enable bit not set!\n"); |
| 2565 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2566 | /* Enable receive */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2567 | MaxFrame = adapter->JumboEnabled ? JUMBOMAXFRAME : ETHERMAXFRAME; |
| 2568 | ConfigData = (RCV_CONFIG_ENABLE | |
| 2569 | RCV_CONFIG_ENPARSE | |
| 2570 | RCV_CONFIG_RCVBAD | |
| 2571 | RCV_CONFIG_RCVPAUSE | |
| 2572 | RCV_CONFIG_TZIPV6 | |
| 2573 | RCV_CONFIG_TZIPV4 | |
| 2574 | RCV_CONFIG_HASH_16 | |
| 2575 | RCV_CONFIG_SOCKET | RCV_CONFIG_BUFSIZE(MaxFrame)); |
| 2576 | WRITE_REG(HwRegs->RcvConfig, ConfigData, TRUE); |
| 2577 | |
| 2578 | WRITE_REG(HwRegs->XmtConfig, XMT_CONFIG_ENABLE, TRUE); |
| 2579 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2580 | /* Mark the link as down. We'll get a link event when it comes up. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2581 | sxg_link_state(adapter, SXG_LINK_DOWN); |
| 2582 | |
| 2583 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XInitLnk", |
| 2584 | adapter, 0, 0, 0); |
| 2585 | return (STATUS_SUCCESS); |
| 2586 | } |
| 2587 | |
| 2588 | /* |
| 2589 | * sxg_phy_init - Initialize the PHY |
| 2590 | * |
| 2591 | * Arguments - |
| 2592 | * adapter - A pointer to our adapter structure |
| 2593 | * |
| 2594 | * Return |
| 2595 | * status |
| 2596 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2597 | static int sxg_phy_init(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2598 | { |
| 2599 | u32 Value; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2600 | struct phy_ucode *p; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2601 | int status; |
| 2602 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2603 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2604 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2605 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module |
| 2606 | * 0xC205 - PHY ID register (?) |
| 2607 | * &Value - XXXTODO - add def |
| 2608 | */ |
| 2609 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2610 | 0xC205, |
| 2611 | &Value); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2612 | if (status != STATUS_SUCCESS) |
| 2613 | return (STATUS_FAILURE); |
| 2614 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2615 | if (Value == 0x0012) { |
| 2616 | /* 0x0012 == AEL2005C PHY(?) - XXXTODO - add def */ |
| 2617 | DBG_ERROR("AEL2005C PHY detected. Downloading PHY \ |
| 2618 | microcode.\n"); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2619 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2620 | /* Initialize AEL2005C PHY and download PHY microcode */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2621 | for (p = PhyUcode; p->Addr != 0xFFFF; p++) { |
| 2622 | if (p->Addr == 0) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2623 | /* if address == 0, data == sleep time in ms */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2624 | mdelay(p->Data); |
| 2625 | } else { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2626 | /* write the given data to the specified address */ |
| 2627 | status = sxg_write_mdio_reg(adapter, |
| 2628 | MIIM_DEV_PHY_PMA, |
| 2629 | /* PHY address */ |
| 2630 | p->Addr, |
| 2631 | /* PHY data */ |
| 2632 | p->Data); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2633 | if (status != STATUS_SUCCESS) |
| 2634 | return (STATUS_FAILURE); |
| 2635 | } |
| 2636 | } |
| 2637 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2638 | DBG_ERROR("EXIT %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2639 | |
| 2640 | return (STATUS_SUCCESS); |
| 2641 | } |
| 2642 | |
| 2643 | /* |
| 2644 | * sxg_link_event - Process a link event notification from the card |
| 2645 | * |
| 2646 | * Arguments - |
| 2647 | * adapter - A pointer to our adapter structure |
| 2648 | * |
| 2649 | * Return |
| 2650 | * None |
| 2651 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2652 | static void sxg_link_event(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2653 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2654 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2655 | struct net_device *netdev = adapter->netdev; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2656 | enum SXG_LINK_STATE LinkState; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2657 | int status; |
| 2658 | u32 Value; |
| 2659 | |
| 2660 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "LinkEvnt", |
| 2661 | adapter, 0, 0, 0); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2662 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2663 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2664 | /* Check the Link Status register. We should have a Link Alarm. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2665 | READ_REG(HwRegs->LinkStatus, Value); |
| 2666 | if (Value & LS_LINK_ALARM) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2667 | /* |
| 2668 | * We got a Link Status alarm. First, pause to let the |
| 2669 | * link state settle (it can bounce a number of times) |
| 2670 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2671 | mdelay(10); |
| 2672 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2673 | /* Now clear the alarm by reading the LASI status register. */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2674 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module */ |
| 2675 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2676 | /* LASI status register */ |
| 2677 | LASI_STATUS, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2678 | &Value); |
| 2679 | if (status != STATUS_SUCCESS) { |
| 2680 | DBG_ERROR("Error reading LASI Status MDIO register!\n"); |
| 2681 | sxg_link_state(adapter, SXG_LINK_DOWN); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2682 | /* ASSERT(0); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2683 | } |
| 2684 | ASSERT(Value & LASI_STATUS_LS_ALARM); |
| 2685 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2686 | /* Now get and set the link state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2687 | LinkState = sxg_get_link_state(adapter); |
| 2688 | sxg_link_state(adapter, LinkState); |
| 2689 | DBG_ERROR("SXG: Link Alarm occurred. Link is %s\n", |
| 2690 | ((LinkState == SXG_LINK_UP) ? "UP" : "DOWN")); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 2691 | if (LinkState == SXG_LINK_UP) |
| 2692 | netif_carrier_on(netdev); |
| 2693 | else |
| 2694 | netif_carrier_off(netdev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2695 | } else { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2696 | /* |
| 2697 | * XXXTODO - Assuming Link Attention is only being generated |
| 2698 | * for the Link Alarm pin (and not for a XAUI Link Status change) |
| 2699 | * , then it's impossible to get here. Yet we've gotten here |
| 2700 | * twice (under extreme conditions - bouncing the link up and |
| 2701 | * down many times a second). Needs further investigation. |
| 2702 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2703 | DBG_ERROR("SXG: sxg_link_event: Can't get here!\n"); |
| 2704 | DBG_ERROR("SXG: Link Status == 0x%08X.\n", Value); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2705 | /* ASSERT(0); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2706 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2707 | DBG_ERROR("EXIT %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2708 | |
| 2709 | } |
| 2710 | |
| 2711 | /* |
| 2712 | * sxg_get_link_state - Determine if the link is up or down |
| 2713 | * |
| 2714 | * Arguments - |
| 2715 | * adapter - A pointer to our adapter structure |
| 2716 | * |
| 2717 | * Return |
| 2718 | * Link State |
| 2719 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2720 | static enum SXG_LINK_STATE sxg_get_link_state(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2721 | { |
| 2722 | int status; |
| 2723 | u32 Value; |
| 2724 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2725 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2726 | |
| 2727 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "GetLink", |
| 2728 | adapter, 0, 0, 0); |
| 2729 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2730 | /* |
| 2731 | * Per the Xenpak spec (and the IEEE 10Gb spec?), the link is up if |
| 2732 | * the following 3 bits (from 3 different MDIO registers) are all true. |
| 2733 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2734 | |
| 2735 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module */ |
| 2736 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2737 | /* PMA/PMD Receive Signal Detect register */ |
| 2738 | PHY_PMA_RCV_DET, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2739 | &Value); |
| 2740 | if (status != STATUS_SUCCESS) |
| 2741 | goto bad; |
| 2742 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2743 | /* If PMA/PMD receive signal detect is 0, then the link is down */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2744 | if (!(Value & PMA_RCV_DETECT)) |
| 2745 | return (SXG_LINK_DOWN); |
| 2746 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2747 | /* MIIM_DEV_PHY_PCS - PHY PCS module */ |
| 2748 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PCS, |
| 2749 | /* PCS 10GBASE-R Status 1 register */ |
| 2750 | PHY_PCS_10G_STATUS1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2751 | &Value); |
| 2752 | if (status != STATUS_SUCCESS) |
| 2753 | goto bad; |
| 2754 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2755 | /* If PCS is not locked to receive blocks, then the link is down */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2756 | if (!(Value & PCS_10B_BLOCK_LOCK)) |
| 2757 | return (SXG_LINK_DOWN); |
| 2758 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2759 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_XS,/* PHY XS module */ |
| 2760 | /* XS Lane Status register */ |
| 2761 | PHY_XS_LANE_STATUS, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2762 | &Value); |
| 2763 | if (status != STATUS_SUCCESS) |
| 2764 | goto bad; |
| 2765 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2766 | /* If XS transmit lanes are not aligned, then the link is down */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2767 | if (!(Value & XS_LANE_ALIGN)) |
| 2768 | return (SXG_LINK_DOWN); |
| 2769 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2770 | /* All 3 bits are true, so the link is up */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2771 | DBG_ERROR("EXIT %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2772 | |
| 2773 | return (SXG_LINK_UP); |
| 2774 | |
| 2775 | bad: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2776 | /* An error occurred reading an MDIO register. This shouldn't happen. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2777 | DBG_ERROR("Error reading an MDIO register!\n"); |
| 2778 | ASSERT(0); |
| 2779 | return (SXG_LINK_DOWN); |
| 2780 | } |
| 2781 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2782 | static void sxg_indicate_link_state(struct adapter_t *adapter, |
| 2783 | enum SXG_LINK_STATE LinkState) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2784 | { |
| 2785 | if (adapter->LinkState == SXG_LINK_UP) { |
| 2786 | DBG_ERROR("%s: LINK now UP, call netif_start_queue\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2787 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2788 | netif_start_queue(adapter->netdev); |
| 2789 | } else { |
| 2790 | DBG_ERROR("%s: LINK now DOWN, call netif_stop_queue\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2791 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2792 | netif_stop_queue(adapter->netdev); |
| 2793 | } |
| 2794 | } |
| 2795 | |
| 2796 | /* |
| 2797 | * sxg_link_state - Set the link state and if necessary, indicate. |
| 2798 | * This routine the central point of processing for all link state changes. |
| 2799 | * Nothing else in the driver should alter the link state or perform |
| 2800 | * link state indications |
| 2801 | * |
| 2802 | * Arguments - |
| 2803 | * adapter - A pointer to our adapter structure |
| 2804 | * LinkState - The link state |
| 2805 | * |
| 2806 | * Return |
| 2807 | * None |
| 2808 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2809 | static void sxg_link_state(struct adapter_t *adapter, |
| 2810 | enum SXG_LINK_STATE LinkState) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2811 | { |
| 2812 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "LnkINDCT", |
| 2813 | adapter, LinkState, adapter->LinkState, adapter->State); |
| 2814 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2815 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2816 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2817 | /* |
| 2818 | * Hold the adapter lock during this routine. Maybe move |
| 2819 | * the lock to the caller. |
| 2820 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2821 | /* IMP TODO : Check if we can survive without taking this lock */ |
| 2822 | // spin_lock(&adapter->AdapterLock); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2823 | if (LinkState == adapter->LinkState) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2824 | /* Nothing changed.. */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2825 | // spin_unlock(&adapter->AdapterLock); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2826 | DBG_ERROR("EXIT #0 %s. Link status = %d\n", |
| 2827 | __func__, LinkState); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2828 | return; |
| 2829 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2830 | /* Save the adapter state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2831 | adapter->LinkState = LinkState; |
| 2832 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2833 | /* Drop the lock and indicate link state */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 2834 | // spin_unlock(&adapter->AdapterLock); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2835 | DBG_ERROR("EXIT #1 %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2836 | |
| 2837 | sxg_indicate_link_state(adapter, LinkState); |
| 2838 | } |
| 2839 | |
| 2840 | /* |
| 2841 | * sxg_write_mdio_reg - Write to a register on the MDIO bus |
| 2842 | * |
| 2843 | * Arguments - |
| 2844 | * adapter - A pointer to our adapter structure |
| 2845 | * DevAddr - MDIO device number being addressed |
| 2846 | * RegAddr - register address for the specified MDIO device |
| 2847 | * Value - value to write to the MDIO register |
| 2848 | * |
| 2849 | * Return |
| 2850 | * status |
| 2851 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2852 | static int sxg_write_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 2853 | u32 DevAddr, u32 RegAddr, u32 Value) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2854 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2855 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2856 | /* Address operation (written to MIIM field reg) */ |
| 2857 | u32 AddrOp; |
| 2858 | /* Write operation (written to MIIM field reg) */ |
| 2859 | u32 WriteOp; |
| 2860 | u32 Cmd;/* Command (written to MIIM command reg) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2861 | u32 ValueRead; |
| 2862 | u32 Timeout; |
| 2863 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2864 | /* DBG_ERROR("ENTER %s\n", __func__); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2865 | |
| 2866 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "WrtMDIO", |
| 2867 | adapter, 0, 0, 0); |
| 2868 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2869 | /* Ensure values don't exceed field width */ |
| 2870 | DevAddr &= 0x001F; /* 5-bit field */ |
| 2871 | RegAddr &= 0xFFFF; /* 16-bit field */ |
| 2872 | Value &= 0xFFFF; /* 16-bit field */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2873 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2874 | /* Set MIIM field register bits for an MIIM address operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2875 | AddrOp = (MIIM_PORT_NUM << AXGMAC_AMIIM_FIELD_PORT_SHIFT) | |
| 2876 | (DevAddr << AXGMAC_AMIIM_FIELD_DEV_SHIFT) | |
| 2877 | (MIIM_TA_10GB << AXGMAC_AMIIM_FIELD_TA_SHIFT) | |
| 2878 | (MIIM_OP_ADDR << AXGMAC_AMIIM_FIELD_OP_SHIFT) | RegAddr; |
| 2879 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2880 | /* Set MIIM field register bits for an MIIM write operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2881 | WriteOp = (MIIM_PORT_NUM << AXGMAC_AMIIM_FIELD_PORT_SHIFT) | |
| 2882 | (DevAddr << AXGMAC_AMIIM_FIELD_DEV_SHIFT) | |
| 2883 | (MIIM_TA_10GB << AXGMAC_AMIIM_FIELD_TA_SHIFT) | |
| 2884 | (MIIM_OP_WRITE << AXGMAC_AMIIM_FIELD_OP_SHIFT) | Value; |
| 2885 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2886 | /* Set MIIM command register bits to execute an MIIM command */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2887 | Cmd = AXGMAC_AMIIM_CMD_START | AXGMAC_AMIIM_CMD_10G_OPERATION; |
| 2888 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2889 | /* Reset the command register command bit (in case it's not 0) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2890 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 2891 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2892 | /* MIIM write to set the address of the specified MDIO register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2893 | WRITE_REG(HwRegs->MacAmiimField, AddrOp, TRUE); |
| 2894 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2895 | /* Write to MIIM Command Register to execute to address operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2896 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 2897 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2898 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2899 | Timeout = SXG_LINK_TIMEOUT; |
| 2900 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2901 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2902 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 2903 | if (--Timeout == 0) { |
| 2904 | return (STATUS_FAILURE); |
| 2905 | } |
| 2906 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2907 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2908 | /* Reset the command register command bit */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2909 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 2910 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2911 | /* MIIM write to set up an MDIO write operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2912 | WRITE_REG(HwRegs->MacAmiimField, WriteOp, TRUE); |
| 2913 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2914 | /* Write to MIIM Command Register to execute the write operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2915 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 2916 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2917 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2918 | Timeout = SXG_LINK_TIMEOUT; |
| 2919 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2920 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2921 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 2922 | if (--Timeout == 0) { |
| 2923 | return (STATUS_FAILURE); |
| 2924 | } |
| 2925 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2926 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2927 | /* DBG_ERROR("EXIT %s\n", __func__); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2928 | |
| 2929 | return (STATUS_SUCCESS); |
| 2930 | } |
| 2931 | |
| 2932 | /* |
| 2933 | * sxg_read_mdio_reg - Read a register on the MDIO bus |
| 2934 | * |
| 2935 | * Arguments - |
| 2936 | * adapter - A pointer to our adapter structure |
| 2937 | * DevAddr - MDIO device number being addressed |
| 2938 | * RegAddr - register address for the specified MDIO device |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2939 | * pValue - pointer to where to put data read from the MDIO register |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2940 | * |
| 2941 | * Return |
| 2942 | * status |
| 2943 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2944 | static int sxg_read_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 2945 | u32 DevAddr, u32 RegAddr, u32 *pValue) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2946 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2947 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2948 | u32 AddrOp; /* Address operation (written to MIIM field reg) */ |
| 2949 | u32 ReadOp; /* Read operation (written to MIIM field reg) */ |
| 2950 | u32 Cmd; /* Command (written to MIIM command reg) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2951 | u32 ValueRead; |
| 2952 | u32 Timeout; |
| 2953 | |
| 2954 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "WrtMDIO", |
| 2955 | adapter, 0, 0, 0); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2956 | DBG_ERROR("ENTER %s\n", __FUNCTION__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2957 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2958 | /* Ensure values don't exceed field width */ |
| 2959 | DevAddr &= 0x001F; /* 5-bit field */ |
| 2960 | RegAddr &= 0xFFFF; /* 16-bit field */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2961 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2962 | /* Set MIIM field register bits for an MIIM address operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2963 | AddrOp = (MIIM_PORT_NUM << AXGMAC_AMIIM_FIELD_PORT_SHIFT) | |
| 2964 | (DevAddr << AXGMAC_AMIIM_FIELD_DEV_SHIFT) | |
| 2965 | (MIIM_TA_10GB << AXGMAC_AMIIM_FIELD_TA_SHIFT) | |
| 2966 | (MIIM_OP_ADDR << AXGMAC_AMIIM_FIELD_OP_SHIFT) | RegAddr; |
| 2967 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2968 | /* Set MIIM field register bits for an MIIM read operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2969 | ReadOp = (MIIM_PORT_NUM << AXGMAC_AMIIM_FIELD_PORT_SHIFT) | |
| 2970 | (DevAddr << AXGMAC_AMIIM_FIELD_DEV_SHIFT) | |
| 2971 | (MIIM_TA_10GB << AXGMAC_AMIIM_FIELD_TA_SHIFT) | |
| 2972 | (MIIM_OP_READ << AXGMAC_AMIIM_FIELD_OP_SHIFT); |
| 2973 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2974 | /* Set MIIM command register bits to execute an MIIM command */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2975 | Cmd = AXGMAC_AMIIM_CMD_START | AXGMAC_AMIIM_CMD_10G_OPERATION; |
| 2976 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2977 | /* Reset the command register command bit (in case it's not 0) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2978 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 2979 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2980 | /* MIIM write to set the address of the specified MDIO register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2981 | WRITE_REG(HwRegs->MacAmiimField, AddrOp, TRUE); |
| 2982 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2983 | /* Write to MIIM Command Register to execute to address operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2984 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 2985 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2986 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2987 | Timeout = SXG_LINK_TIMEOUT; |
| 2988 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2989 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2990 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 2991 | if (--Timeout == 0) { |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2992 | DBG_ERROR("EXIT %s with STATUS_FAILURE 1\n", __FUNCTION__); |
| 2993 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2994 | return (STATUS_FAILURE); |
| 2995 | } |
| 2996 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2997 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2998 | /* Reset the command register command bit */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2999 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 3000 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3001 | /* MIIM write to set up an MDIO register read operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3002 | WRITE_REG(HwRegs->MacAmiimField, ReadOp, TRUE); |
| 3003 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3004 | /* Write to MIIM Command Register to execute the read operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3005 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 3006 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3007 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3008 | Timeout = SXG_LINK_TIMEOUT; |
| 3009 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3010 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3011 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 3012 | if (--Timeout == 0) { |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3013 | DBG_ERROR("EXIT %s with STATUS_FAILURE 2\n", __FUNCTION__); |
| 3014 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3015 | return (STATUS_FAILURE); |
| 3016 | } |
| 3017 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 3018 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3019 | /* Read the MDIO register data back from the field register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3020 | READ_REG(HwRegs->MacAmiimField, *pValue); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3021 | *pValue &= 0xFFFF; /* data is in the lower 16 bits */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3022 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3023 | DBG_ERROR("EXIT %s\n", __FUNCTION__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3024 | |
| 3025 | return (STATUS_SUCCESS); |
| 3026 | } |
| 3027 | |
| 3028 | /* |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3029 | * Functions to obtain the CRC corresponding to the destination mac address. |
| 3030 | * This is a standard ethernet CRC in that it is a 32-bit, reflected CRC using |
| 3031 | * the polynomial: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3032 | * x^32 + x^26 + x^23 + x^22 + x^16 + x^12 + x^11 + x^10 + x^8 + x^7 + x^5 |
| 3033 | * + x^4 + x^2 + x^1. |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3034 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3035 | * After the CRC for the 6 bytes is generated (but before the value is |
| 3036 | * complemented), we must then transpose the value and return bits 30-23. |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3037 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3038 | static u32 sxg_crc_table[256];/* Table of CRC's for all possible byte values */ |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3039 | #if XXXTODO |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3040 | static u32 sxg_crc_init; /* Is table initialized */ |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3041 | #endif |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3042 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3043 | /* Contruct the CRC32 table */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3044 | static void sxg_mcast_init_crc32(void) |
| 3045 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3046 | u32 c; /* CRC shit reg */ |
| 3047 | u32 e = 0; /* Poly X-or pattern */ |
| 3048 | int i; /* counter */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3049 | int k; /* byte being shifted into crc */ |
| 3050 | |
| 3051 | static int p[] = { 0, 1, 2, 4, 5, 7, 8, 10, 11, 12, 16, 22, 23, 26 }; |
| 3052 | |
| 3053 | for (i = 0; i < sizeof(p) / sizeof(int); i++) { |
| 3054 | e |= 1L << (31 - p[i]); |
| 3055 | } |
| 3056 | |
| 3057 | for (i = 1; i < 256; i++) { |
| 3058 | c = i; |
| 3059 | for (k = 8; k; k--) { |
| 3060 | c = c & 1 ? (c >> 1) ^ e : c >> 1; |
| 3061 | } |
| 3062 | sxg_crc_table[i] = c; |
| 3063 | } |
| 3064 | } |
| 3065 | |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3066 | #if XXXTODO |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3067 | /* |
| 3068 | * Return the MAC hast as described above. |
| 3069 | */ |
| 3070 | static unsigned char sxg_mcast_get_mac_hash(char *macaddr) |
| 3071 | { |
| 3072 | u32 crc; |
| 3073 | char *p; |
| 3074 | int i; |
| 3075 | unsigned char machash = 0; |
| 3076 | |
| 3077 | if (!sxg_crc_init) { |
| 3078 | sxg_mcast_init_crc32(); |
| 3079 | sxg_crc_init = 1; |
| 3080 | } |
| 3081 | |
| 3082 | crc = 0xFFFFFFFF; /* Preload shift register, per crc-32 spec */ |
| 3083 | for (i = 0, p = macaddr; i < 6; ++p, ++i) { |
| 3084 | crc = (crc >> 8) ^ sxg_crc_table[(crc ^ *p) & 0xFF]; |
| 3085 | } |
| 3086 | |
| 3087 | /* Return bits 1-8, transposed */ |
| 3088 | for (i = 1; i < 9; i++) { |
| 3089 | machash |= (((crc >> i) & 1) << (8 - i)); |
| 3090 | } |
| 3091 | |
| 3092 | return (machash); |
| 3093 | } |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3094 | #endif |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3095 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3096 | static void sxg_mcast_set_mask(struct adapter_t *adapter) |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3097 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3098 | struct sxg_ucode_regs *sxg_regs = adapter->UcodeRegs; |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3099 | |
| 3100 | DBG_ERROR("%s ENTER (%s) macopts[%x] mask[%llx]\n", __func__, |
| 3101 | adapter->netdev->name, (unsigned int)adapter->MacFilter, |
| 3102 | adapter->MulticastMask); |
| 3103 | |
| 3104 | if (adapter->MacFilter & (MAC_ALLMCAST | MAC_PROMISC)) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3105 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3106 | * Turn on all multicast addresses. We have to do this for |
| 3107 | * promiscuous mode as well as ALLMCAST mode. It saves the |
| 3108 | * Microcode from having keep state about the MAC configuration |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3109 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3110 | /* DBG_ERROR("sxg: %s macopts = MAC_ALLMCAST | MAC_PROMISC\n |
| 3111 | * SLUT MODE!!!\n",__func__); |
| 3112 | */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3113 | WRITE_REG(sxg_regs->McastLow, 0xFFFFFFFF, FLUSH); |
| 3114 | WRITE_REG(sxg_regs->McastHigh, 0xFFFFFFFF, FLUSH); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3115 | /* DBG_ERROR("%s (%s) WRITE to slic_regs slic_mcastlow&high \ |
| 3116 | * 0xFFFFFFFF\n",__func__, adapter->netdev->name); |
| 3117 | */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3118 | |
| 3119 | } else { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3120 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3121 | * Commit our multicast mast to the SLIC by writing to the |
| 3122 | * multicast address mask registers |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3123 | */ |
| 3124 | DBG_ERROR("%s (%s) WRITE mcastlow[%lx] mcasthigh[%lx]\n", |
| 3125 | __func__, adapter->netdev->name, |
| 3126 | ((ulong) (adapter->MulticastMask & 0xFFFFFFFF)), |
| 3127 | ((ulong) |
| 3128 | ((adapter->MulticastMask >> 32) & 0xFFFFFFFF))); |
| 3129 | |
| 3130 | WRITE_REG(sxg_regs->McastLow, |
| 3131 | (u32) (adapter->MulticastMask & 0xFFFFFFFF), FLUSH); |
| 3132 | WRITE_REG(sxg_regs->McastHigh, |
| 3133 | (u32) ((adapter-> |
| 3134 | MulticastMask >> 32) & 0xFFFFFFFF), FLUSH); |
| 3135 | } |
| 3136 | } |
| 3137 | |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3138 | #if XXXTODO |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3139 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3140 | * Allocate a mcast_address structure to hold the multicast address. |
| 3141 | * Link it in. |
| 3142 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3143 | static int sxg_mcast_add_list(struct adapter_t *adapter, char *address) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3144 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3145 | struct mcast_address *mcaddr, *mlist; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3146 | bool equaladdr; |
| 3147 | |
| 3148 | /* Check to see if it already exists */ |
| 3149 | mlist = adapter->mcastaddrs; |
| 3150 | while (mlist) { |
| 3151 | ETHER_EQ_ADDR(mlist->address, address, equaladdr); |
| 3152 | if (equaladdr) { |
| 3153 | return (STATUS_SUCCESS); |
| 3154 | } |
| 3155 | mlist = mlist->next; |
| 3156 | } |
| 3157 | |
| 3158 | /* Doesn't already exist. Allocate a structure to hold it */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3159 | mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3160 | if (mcaddr == NULL) |
| 3161 | return 1; |
| 3162 | |
| 3163 | memcpy(mcaddr->address, address, 6); |
| 3164 | |
| 3165 | mcaddr->next = adapter->mcastaddrs; |
| 3166 | adapter->mcastaddrs = mcaddr; |
| 3167 | |
| 3168 | return (STATUS_SUCCESS); |
| 3169 | } |
| 3170 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3171 | static void sxg_mcast_set_bit(struct adapter_t *adapter, char *address) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3172 | { |
| 3173 | unsigned char crcpoly; |
| 3174 | |
| 3175 | /* Get the CRC polynomial for the mac address */ |
| 3176 | crcpoly = sxg_mcast_get_mac_hash(address); |
| 3177 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3178 | /* |
| 3179 | * We only have space on the SLIC for 64 entries. Lop |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3180 | * off the top two bits. (2^6 = 64) |
| 3181 | */ |
| 3182 | crcpoly &= 0x3F; |
| 3183 | |
| 3184 | /* OR in the new bit into our 64 bit mask. */ |
| 3185 | adapter->MulticastMask |= (u64) 1 << crcpoly; |
| 3186 | } |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3187 | #endif |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3188 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3189 | static void sxg_mcast_set_list(struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3190 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3191 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3192 | |
| 3193 | ASSERT(adapter); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3194 | if (dev->flags & IFF_PROMISC) { |
| 3195 | adapter->MacFilter |= MAC_PROMISC; |
| 3196 | } |
| 3197 | //XXX handle other flags as well |
| 3198 | sxg_mcast_set_mask(adapter); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3199 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3200 | |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3201 | #if XXXTODO |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3202 | static void sxg_unmap_mmio_space(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3203 | { |
| 3204 | #if LINUX_FREES_ADAPTER_RESOURCES |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3205 | /* |
| 3206 | * if (adapter->Regs) { |
| 3207 | * iounmap(adapter->Regs); |
| 3208 | * } |
| 3209 | * adapter->slic_regs = NULL; |
| 3210 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3211 | #endif |
| 3212 | } |
Greg Kroah-Hartman | 96e7088 | 2009-01-21 08:17:45 -0800 | [diff] [blame^] | 3213 | #endif |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3214 | |
| 3215 | void sxg_free_sgl_buffers(struct adapter_t *adapter) |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3216 | { |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3217 | struct list_entry *ple; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3218 | struct sxg_scatter_gather *Sgl; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3219 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3220 | while(!(IsListEmpty(&adapter->AllSglBuffers))) { |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3221 | ple = RemoveHeadList(&adapter->AllSglBuffers); |
| 3222 | Sgl = container_of(ple, struct sxg_scatter_gather, AllList); |
| 3223 | kfree(Sgl); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3224 | adapter->AllSglBufferCount--; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3225 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3226 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3227 | |
| 3228 | void sxg_free_rcvblocks(struct adapter_t *adapter) |
| 3229 | { |
| 3230 | u32 i; |
| 3231 | void *temp_RcvBlock; |
| 3232 | struct list_entry *ple; |
| 3233 | struct sxg_rcv_block_hdr *RcvBlockHdr; |
| 3234 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
| 3235 | ASSERT((adapter->state == SXG_STATE_INITIALIZING) || |
| 3236 | (adapter->state == SXG_STATE_HALTING)); |
| 3237 | while(!(IsListEmpty(&adapter->AllRcvBlocks))) { |
| 3238 | |
| 3239 | ple = RemoveHeadList(&adapter->AllRcvBlocks); |
| 3240 | RcvBlockHdr = container_of(ple, struct sxg_rcv_block_hdr, AllList); |
| 3241 | |
| 3242 | if(RcvBlockHdr->VirtualAddress) { |
| 3243 | temp_RcvBlock = RcvBlockHdr->VirtualAddress; |
| 3244 | |
| 3245 | for(i=0; i< SXG_RCV_DESCRIPTORS_PER_BLOCK; |
| 3246 | i++, temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
| 3247 | RcvDataBufferHdr = |
| 3248 | (struct sxg_rcv_data_buffer_hdr *)temp_RcvBlock; |
| 3249 | SXG_FREE_RCV_PACKET(RcvDataBufferHdr); |
| 3250 | } |
| 3251 | } |
| 3252 | |
| 3253 | pci_free_consistent(adapter->pcidev, |
| 3254 | SXG_RCV_BLOCK_SIZE(SXG_RCV_DATA_HDR_SIZE), |
| 3255 | RcvBlockHdr->VirtualAddress, |
| 3256 | RcvBlockHdr->PhysicalAddress); |
| 3257 | adapter->AllRcvBlockCount--; |
| 3258 | } |
| 3259 | ASSERT(adapter->AllRcvBlockCount == 0); |
| 3260 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFrRBlk", |
| 3261 | adapter, 0, 0, 0); |
| 3262 | } |
| 3263 | void sxg_free_mcast_addrs(struct adapter_t *adapter) |
| 3264 | { |
| 3265 | struct sxg_multicast_address *address; |
| 3266 | while(adapter->MulticastAddrs) { |
| 3267 | address = adapter->MulticastAddrs; |
| 3268 | adapter->MulticastAddrs = address->Next; |
| 3269 | kfree(address); |
| 3270 | } |
| 3271 | |
| 3272 | adapter->MulticastMask= 0; |
| 3273 | } |
| 3274 | |
| 3275 | void sxg_unmap_resources(struct adapter_t *adapter) |
| 3276 | { |
| 3277 | if(adapter->HwRegs) { |
| 3278 | iounmap((void *)adapter->HwRegs); |
| 3279 | } |
| 3280 | if(adapter->UcodeRegs) { |
| 3281 | iounmap((void *)adapter->UcodeRegs); |
| 3282 | } |
| 3283 | |
| 3284 | ASSERT(adapter->AllRcvBlockCount == 0); |
| 3285 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFrRBlk", |
| 3286 | adapter, 0, 0, 0); |
| 3287 | } |
| 3288 | |
| 3289 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3290 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3291 | /* |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3292 | * sxg_free_resources - Free everything allocated in SxgAllocateResources |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3293 | * |
| 3294 | * Arguments - |
| 3295 | * adapter - A pointer to our adapter structure |
| 3296 | * |
| 3297 | * Return |
| 3298 | * none |
| 3299 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3300 | void sxg_free_resources(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3301 | { |
| 3302 | u32 RssIds, IsrCount; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3303 | struct net_device *netdev = adapter->netdev; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3304 | RssIds = SXG_RSS_CPU_COUNT(adapter); |
| 3305 | IsrCount = adapter->MsiEnabled ? RssIds : 1; |
| 3306 | |
| 3307 | if (adapter->BasicAllocations == FALSE) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3308 | /* |
| 3309 | * No allocations have been made, including spinlocks, |
| 3310 | * or listhead initializations. Return. |
| 3311 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3312 | return; |
| 3313 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3314 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3315 | /* Free Irq */ |
| 3316 | free_irq(adapter->netdev->irq, netdev); |
| 3317 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3318 | if (!(IsListEmpty(&adapter->AllRcvBlocks))) { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3319 | sxg_free_rcvblocks(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3320 | } |
| 3321 | if (!(IsListEmpty(&adapter->AllSglBuffers))) { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3322 | sxg_free_sgl_buffers(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3323 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3324 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3325 | if (adapter->XmtRingZeroIndex) { |
| 3326 | pci_free_consistent(adapter->pcidev, |
| 3327 | sizeof(u32), |
| 3328 | adapter->XmtRingZeroIndex, |
| 3329 | adapter->PXmtRingZeroIndex); |
| 3330 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3331 | if (adapter->Isr) { |
| 3332 | pci_free_consistent(adapter->pcidev, |
| 3333 | sizeof(u32) * IsrCount, |
| 3334 | adapter->Isr, adapter->PIsr); |
| 3335 | } |
| 3336 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3337 | if (adapter->EventRings) { |
| 3338 | pci_free_consistent(adapter->pcidev, |
| 3339 | sizeof(struct sxg_event_ring) * RssIds, |
| 3340 | adapter->EventRings, adapter->PEventRings); |
| 3341 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3342 | if (adapter->RcvRings) { |
| 3343 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3344 | sizeof(struct sxg_rcv_ring) * 1, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3345 | adapter->RcvRings, |
| 3346 | adapter->PRcvRings); |
| 3347 | adapter->RcvRings = NULL; |
| 3348 | } |
| 3349 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3350 | if(adapter->XmtRings) { |
| 3351 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3352 | sizeof(struct sxg_xmt_ring) * 1, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3353 | adapter->XmtRings, |
| 3354 | adapter->PXmtRings); |
| 3355 | adapter->XmtRings = NULL; |
| 3356 | } |
| 3357 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3358 | if (adapter->ucode_stats) { |
| 3359 | pci_unmap_single(adapter->pcidev, |
| 3360 | sizeof(struct sxg_ucode_stats), |
| 3361 | adapter->pucode_stats, PCI_DMA_FROMDEVICE); |
| 3362 | adapter->ucode_stats = NULL; |
| 3363 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3364 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3365 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3366 | /* Unmap register spaces */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3367 | sxg_unmap_resources(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3368 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3369 | sxg_free_mcast_addrs(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3370 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3371 | adapter->BasicAllocations = FALSE; |
| 3372 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3373 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3374 | |
| 3375 | /* |
| 3376 | * sxg_allocate_complete - |
| 3377 | * |
| 3378 | * This routine is called when a memory allocation has completed. |
| 3379 | * |
| 3380 | * Arguments - |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3381 | * struct adapter_t * - Our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3382 | * VirtualAddress - Memory virtual address |
| 3383 | * PhysicalAddress - Memory physical address |
| 3384 | * Length - Length of memory allocated (or 0) |
| 3385 | * Context - The type of buffer allocated |
| 3386 | * |
| 3387 | * Return |
| 3388 | * None. |
| 3389 | */ |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3390 | static int sxg_allocate_complete(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3391 | void *VirtualAddress, |
| 3392 | dma_addr_t PhysicalAddress, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3393 | u32 Length, enum sxg_buffer_type Context) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3394 | { |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3395 | int status = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3396 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AllocCmp", |
| 3397 | adapter, VirtualAddress, Length, Context); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3398 | ASSERT(atomic_read(&adapter->pending_allocations)); |
| 3399 | atomic_dec(&adapter->pending_allocations); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3400 | |
| 3401 | switch (Context) { |
| 3402 | |
| 3403 | case SXG_BUFFER_TYPE_RCV: |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3404 | status = sxg_allocate_rcvblock_complete(adapter, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3405 | VirtualAddress, |
| 3406 | PhysicalAddress, Length); |
| 3407 | break; |
| 3408 | case SXG_BUFFER_TYPE_SGL: |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3409 | sxg_allocate_sgl_buffer_complete(adapter, (struct sxg_scatter_gather *) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3410 | VirtualAddress, |
| 3411 | PhysicalAddress, Length); |
| 3412 | break; |
| 3413 | } |
| 3414 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlocCmp", |
| 3415 | adapter, VirtualAddress, Length, Context); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3416 | |
| 3417 | return status; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3418 | } |
| 3419 | |
| 3420 | /* |
| 3421 | * sxg_allocate_buffer_memory - Shared memory allocation routine used for |
| 3422 | * synchronous and asynchronous buffer allocations |
| 3423 | * |
| 3424 | * Arguments - |
| 3425 | * adapter - A pointer to our adapter structure |
| 3426 | * Size - block size to allocate |
| 3427 | * BufferType - Type of buffer to allocate |
| 3428 | * |
| 3429 | * Return |
| 3430 | * int |
| 3431 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3432 | static int sxg_allocate_buffer_memory(struct adapter_t *adapter, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3433 | u32 Size, enum sxg_buffer_type BufferType) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3434 | { |
| 3435 | int status; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3436 | void *Buffer; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3437 | dma_addr_t pBuffer; |
| 3438 | |
| 3439 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AllocMem", |
| 3440 | adapter, Size, BufferType, 0); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3441 | /* |
| 3442 | * Grab the adapter lock and check the state. If we're in anything other |
| 3443 | * than INITIALIZING or RUNNING state, fail. This is to prevent |
| 3444 | * allocations in an improper driver state |
| 3445 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3446 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3447 | atomic_inc(&adapter->pending_allocations); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3448 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3449 | if(BufferType != SXG_BUFFER_TYPE_SGL) |
| 3450 | Buffer = pci_alloc_consistent(adapter->pcidev, Size, &pBuffer); |
| 3451 | else { |
| 3452 | Buffer = kzalloc(Size, GFP_ATOMIC); |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 3453 | pBuffer = (dma_addr_t)NULL; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3454 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3455 | if (Buffer == NULL) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3456 | /* |
| 3457 | * Decrement the AllocationsPending count while holding |
| 3458 | * the lock. Pause processing relies on this |
| 3459 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3460 | atomic_dec(&adapter->pending_allocations); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3461 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AlcMemF1", |
| 3462 | adapter, Size, BufferType, 0); |
| 3463 | return (STATUS_RESOURCES); |
| 3464 | } |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3465 | status = sxg_allocate_complete(adapter, Buffer, pBuffer, Size, BufferType); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3466 | |
| 3467 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlocMem", |
| 3468 | adapter, Size, BufferType, status); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3469 | return status; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3470 | } |
| 3471 | |
| 3472 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3473 | * sxg_allocate_rcvblock_complete - Complete a receive descriptor |
| 3474 | * block allocation |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3475 | * |
| 3476 | * Arguments - |
| 3477 | * adapter - A pointer to our adapter structure |
| 3478 | * RcvBlock - receive block virtual address |
| 3479 | * PhysicalAddress - Physical address |
| 3480 | * Length - Memory length |
| 3481 | * |
| 3482 | * Return |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3483 | */ |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3484 | static int sxg_allocate_rcvblock_complete(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3485 | void *RcvBlock, |
| 3486 | dma_addr_t PhysicalAddress, |
| 3487 | u32 Length) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3488 | { |
| 3489 | u32 i; |
| 3490 | u32 BufferSize = adapter->ReceiveBufferSize; |
| 3491 | u64 Paddr; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3492 | void *temp_RcvBlock; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3493 | struct sxg_rcv_block_hdr *RcvBlockHdr; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3494 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
| 3495 | struct sxg_rcv_descriptor_block *RcvDescriptorBlock; |
| 3496 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3497 | |
| 3498 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AlRcvBlk", |
| 3499 | adapter, RcvBlock, Length, 0); |
| 3500 | if (RcvBlock == NULL) { |
| 3501 | goto fail; |
| 3502 | } |
| 3503 | memset(RcvBlock, 0, Length); |
| 3504 | ASSERT((BufferSize == SXG_RCV_DATA_BUFFER_SIZE) || |
| 3505 | (BufferSize == SXG_RCV_JUMBO_BUFFER_SIZE)); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3506 | ASSERT(Length == SXG_RCV_BLOCK_SIZE(SXG_RCV_DATA_HDR_SIZE)); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3507 | /* |
| 3508 | * First, initialize the contained pool of receive data buffers. |
| 3509 | * This initialization requires NBL/NB/MDL allocations, if any of them |
| 3510 | * fail, free the block and return without queueing the shared memory |
| 3511 | */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3512 | //RcvDataBuffer = RcvBlock; |
| 3513 | temp_RcvBlock = RcvBlock; |
| 3514 | for (i = 0; i < SXG_RCV_DESCRIPTORS_PER_BLOCK; |
| 3515 | i++, temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
| 3516 | RcvDataBufferHdr = (struct sxg_rcv_data_buffer_hdr *) |
| 3517 | temp_RcvBlock; |
| 3518 | /* For FREE macro assertion */ |
| 3519 | RcvDataBufferHdr->State = SXG_BUFFER_UPSTREAM; |
| 3520 | SXG_ALLOCATE_RCV_PACKET(adapter, RcvDataBufferHdr, BufferSize); |
| 3521 | if (RcvDataBufferHdr->SxgDumbRcvPacket == NULL) |
| 3522 | goto fail; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3523 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3524 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3525 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3526 | /* |
| 3527 | * Place this entire block of memory on the AllRcvBlocks queue so it |
| 3528 | * can be free later |
| 3529 | */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3530 | |
| 3531 | RcvBlockHdr = (struct sxg_rcv_block_hdr *) ((unsigned char *)RcvBlock + |
| 3532 | SXG_RCV_BLOCK_HDR_OFFSET(SXG_RCV_DATA_HDR_SIZE)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3533 | RcvBlockHdr->VirtualAddress = RcvBlock; |
| 3534 | RcvBlockHdr->PhysicalAddress = PhysicalAddress; |
| 3535 | spin_lock(&adapter->RcvQLock); |
| 3536 | adapter->AllRcvBlockCount++; |
| 3537 | InsertTailList(&adapter->AllRcvBlocks, &RcvBlockHdr->AllList); |
| 3538 | spin_unlock(&adapter->RcvQLock); |
| 3539 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3540 | /* Now free the contained receive data buffers that we |
| 3541 | * initialized above */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3542 | temp_RcvBlock = RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3543 | for (i = 0, Paddr = PhysicalAddress; |
| 3544 | i < SXG_RCV_DESCRIPTORS_PER_BLOCK; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3545 | i++, Paddr += SXG_RCV_DATA_HDR_SIZE, |
| 3546 | temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
| 3547 | RcvDataBufferHdr = |
| 3548 | (struct sxg_rcv_data_buffer_hdr *)temp_RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3549 | spin_lock(&adapter->RcvQLock); |
| 3550 | SXG_FREE_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
| 3551 | spin_unlock(&adapter->RcvQLock); |
| 3552 | } |
| 3553 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3554 | /* Locate the descriptor block and put it on a separate free queue */ |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3555 | RcvDescriptorBlock = |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3556 | (struct sxg_rcv_descriptor_block *) ((unsigned char *)RcvBlock + |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3557 | SXG_RCV_DESCRIPTOR_BLOCK_OFFSET |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3558 | (SXG_RCV_DATA_HDR_SIZE)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3559 | RcvDescriptorBlockHdr = |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3560 | (struct sxg_rcv_descriptor_block_hdr *) ((unsigned char *)RcvBlock + |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3561 | SXG_RCV_DESCRIPTOR_BLOCK_HDR_OFFSET |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3562 | (SXG_RCV_DATA_HDR_SIZE)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3563 | RcvDescriptorBlockHdr->VirtualAddress = RcvDescriptorBlock; |
| 3564 | RcvDescriptorBlockHdr->PhysicalAddress = Paddr; |
| 3565 | spin_lock(&adapter->RcvQLock); |
| 3566 | SXG_FREE_RCV_DESCRIPTOR_BLOCK(adapter, RcvDescriptorBlockHdr); |
| 3567 | spin_unlock(&adapter->RcvQLock); |
| 3568 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlRBlk", |
| 3569 | adapter, RcvBlock, Length, 0); |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3570 | return STATUS_SUCCESS; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3571 | fail: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3572 | /* Free any allocated resources */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3573 | if (RcvBlock) { |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3574 | temp_RcvBlock = RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3575 | for (i = 0; i < SXG_RCV_DESCRIPTORS_PER_BLOCK; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3576 | i++, temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3577 | RcvDataBufferHdr = |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3578 | (struct sxg_rcv_data_buffer_hdr *)temp_RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3579 | SXG_FREE_RCV_PACKET(RcvDataBufferHdr); |
| 3580 | } |
| 3581 | pci_free_consistent(adapter->pcidev, |
| 3582 | Length, RcvBlock, PhysicalAddress); |
| 3583 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3584 | DBG_ERROR("%s: OUT OF RESOURCES\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3585 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "RcvAFail", |
| 3586 | adapter, adapter->FreeRcvBufferCount, |
| 3587 | adapter->FreeRcvBlockCount, adapter->AllRcvBlockCount); |
| 3588 | adapter->Stats.NoMem++; |
Mithlesh Thukral | 0d41472 | 2009-01-19 20:29:59 +0530 | [diff] [blame] | 3589 | /* As allocation failed, free all previously allocated blocks..*/ |
| 3590 | //sxg_free_rcvblocks(adapter); |
| 3591 | |
| 3592 | return STATUS_RESOURCES; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3593 | } |
| 3594 | |
| 3595 | /* |
| 3596 | * sxg_allocate_sgl_buffer_complete - Complete a SGL buffer allocation |
| 3597 | * |
| 3598 | * Arguments - |
| 3599 | * adapter - A pointer to our adapter structure |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3600 | * SxgSgl - struct sxg_scatter_gather buffer |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3601 | * PhysicalAddress - Physical address |
| 3602 | * Length - Memory length |
| 3603 | * |
| 3604 | * Return |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3605 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3606 | static void sxg_allocate_sgl_buffer_complete(struct adapter_t *adapter, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3607 | struct sxg_scatter_gather *SxgSgl, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3608 | dma_addr_t PhysicalAddress, |
| 3609 | u32 Length) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3610 | { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3611 | unsigned long sgl_flags; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3612 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AlSglCmp", |
| 3613 | adapter, SxgSgl, Length, 0); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3614 | if(!in_irq()) |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3615 | spin_lock_irqsave(&adapter->SglQLock, sgl_flags); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3616 | else |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3617 | spin_lock(&adapter->SglQLock); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3618 | adapter->AllSglBufferCount++; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3619 | /* PhysicalAddress; */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3620 | SxgSgl->PhysicalAddress = PhysicalAddress; |
| 3621 | /* Initialize backpointer once */ |
| 3622 | SxgSgl->adapter = adapter; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3623 | InsertTailList(&adapter->AllSglBuffers, &SxgSgl->AllList); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3624 | if(!in_irq()) |
| 3625 | spin_unlock_irqrestore(&adapter->SglQLock, sgl_flags); |
| 3626 | else |
| 3627 | spin_unlock(&adapter->SglQLock); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3628 | SxgSgl->State = SXG_BUFFER_BUSY; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3629 | SXG_FREE_SGL_BUFFER(adapter, SxgSgl, NULL, in_irq()); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3630 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlSgl", |
| 3631 | adapter, SxgSgl, Length, 0); |
| 3632 | } |
| 3633 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3634 | |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 3635 | static int sxg_adapter_set_hwaddr(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3636 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3637 | /* |
| 3638 | * DBG_ERROR ("%s ENTER card->config_set[%x] port[%d] physport[%d] \ |
| 3639 | * funct#[%d]\n", __func__, card->config_set, |
| 3640 | * adapter->port, adapter->physport, adapter->functionnumber); |
| 3641 | * |
| 3642 | * sxg_dbg_macaddrs(adapter); |
| 3643 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3644 | /* DBG_ERROR ("%s AFTER copying from config.macinfo into currmacaddr\n", |
| 3645 | * __FUNCTION__); |
| 3646 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3647 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3648 | /* sxg_dbg_macaddrs(adapter); */ |
| 3649 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3650 | struct net_device * dev = adapter->netdev; |
| 3651 | if(!dev) |
| 3652 | { |
| 3653 | printk("sxg: Dev is Null\n"); |
| 3654 | } |
| 3655 | |
| 3656 | DBG_ERROR("%s ENTER (%s)\n", __FUNCTION__, adapter->netdev->name); |
| 3657 | |
| 3658 | if (netif_running(dev)) { |
| 3659 | return -EBUSY; |
| 3660 | } |
| 3661 | if (!adapter) { |
| 3662 | return -EBUSY; |
| 3663 | } |
| 3664 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3665 | if (!(adapter->currmacaddr[0] || |
| 3666 | adapter->currmacaddr[1] || |
| 3667 | adapter->currmacaddr[2] || |
| 3668 | adapter->currmacaddr[3] || |
| 3669 | adapter->currmacaddr[4] || adapter->currmacaddr[5])) { |
| 3670 | memcpy(adapter->currmacaddr, adapter->macaddr, 6); |
| 3671 | } |
| 3672 | if (adapter->netdev) { |
| 3673 | memcpy(adapter->netdev->dev_addr, adapter->currmacaddr, 6); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3674 | memcpy(adapter->netdev->perm_addr, adapter->currmacaddr, 6); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3675 | } |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3676 | /* DBG_ERROR ("%s EXIT port %d\n", __func__, adapter->port); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3677 | sxg_dbg_macaddrs(adapter); |
| 3678 | |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 3679 | return 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3680 | } |
| 3681 | |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3682 | #if XXXTODO |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3683 | static int sxg_mac_set_address(struct net_device *dev, void *ptr) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3684 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3685 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3686 | struct sockaddr *addr = ptr; |
| 3687 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3688 | DBG_ERROR("%s ENTER (%s)\n", __func__, adapter->netdev->name); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3689 | |
| 3690 | if (netif_running(dev)) { |
| 3691 | return -EBUSY; |
| 3692 | } |
| 3693 | if (!adapter) { |
| 3694 | return -EBUSY; |
| 3695 | } |
| 3696 | DBG_ERROR("sxg: %s (%s) curr %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3697 | __func__, adapter->netdev->name, adapter->currmacaddr[0], |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3698 | adapter->currmacaddr[1], adapter->currmacaddr[2], |
| 3699 | adapter->currmacaddr[3], adapter->currmacaddr[4], |
| 3700 | adapter->currmacaddr[5]); |
| 3701 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 3702 | memcpy(adapter->currmacaddr, addr->sa_data, dev->addr_len); |
| 3703 | DBG_ERROR("sxg: %s (%s) new %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3704 | __func__, adapter->netdev->name, adapter->currmacaddr[0], |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3705 | adapter->currmacaddr[1], adapter->currmacaddr[2], |
| 3706 | adapter->currmacaddr[3], adapter->currmacaddr[4], |
| 3707 | adapter->currmacaddr[5]); |
| 3708 | |
| 3709 | sxg_config_set(adapter, TRUE); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3710 | return 0; |
| 3711 | } |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3712 | #endif |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3713 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3714 | /* |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3715 | * SXG DRIVER FUNCTIONS (below) |
| 3716 | * |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3717 | * sxg_initialize_adapter - Initialize adapter |
| 3718 | * |
| 3719 | * Arguments - |
| 3720 | * adapter - A pointer to our adapter structure |
| 3721 | * |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3722 | * Return - int |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3723 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3724 | static int sxg_initialize_adapter(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3725 | { |
| 3726 | u32 RssIds, IsrCount; |
| 3727 | u32 i; |
| 3728 | int status; |
| 3729 | |
| 3730 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "InitAdpt", |
| 3731 | adapter, 0, 0, 0); |
| 3732 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3733 | RssIds = 1; /* XXXTODO SXG_RSS_CPU_COUNT(adapter); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3734 | IsrCount = adapter->MsiEnabled ? RssIds : 1; |
| 3735 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3736 | /* |
| 3737 | * Sanity check SXG_UCODE_REGS structure definition to |
| 3738 | * make sure the length is correct |
| 3739 | */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3740 | ASSERT(sizeof(struct sxg_ucode_regs) == SXG_REGISTER_SIZE_PER_CPU); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3741 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3742 | /* Disable interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3743 | SXG_DISABLE_ALL_INTERRUPTS(adapter); |
| 3744 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3745 | /* Set MTU */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3746 | ASSERT((adapter->FrameSize == ETHERMAXFRAME) || |
| 3747 | (adapter->FrameSize == JUMBOMAXFRAME)); |
| 3748 | WRITE_REG(adapter->UcodeRegs[0].LinkMtu, adapter->FrameSize, TRUE); |
| 3749 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3750 | /* Set event ring base address and size */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3751 | WRITE_REG64(adapter, |
| 3752 | adapter->UcodeRegs[0].EventBase, adapter->PEventRings, 0); |
| 3753 | WRITE_REG(adapter->UcodeRegs[0].EventSize, EVENT_RING_SIZE, TRUE); |
| 3754 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3755 | /* Per-ISR initialization */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3756 | for (i = 0; i < IsrCount; i++) { |
| 3757 | u64 Addr; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3758 | /* Set interrupt status pointer */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3759 | Addr = adapter->PIsr + (i * sizeof(u32)); |
| 3760 | WRITE_REG64(adapter, adapter->UcodeRegs[i].Isp, Addr, i); |
| 3761 | } |
| 3762 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3763 | /* XMT ring zero index */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3764 | WRITE_REG64(adapter, |
| 3765 | adapter->UcodeRegs[0].SPSendIndex, |
| 3766 | adapter->PXmtRingZeroIndex, 0); |
| 3767 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3768 | /* Per-RSS initialization */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3769 | for (i = 0; i < RssIds; i++) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3770 | /* Release all event ring entries to the Microcode */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3771 | WRITE_REG(adapter->UcodeRegs[i].EventRelease, EVENT_RING_SIZE, |
| 3772 | TRUE); |
| 3773 | } |
| 3774 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3775 | /* Transmit ring base and size */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3776 | WRITE_REG64(adapter, |
| 3777 | adapter->UcodeRegs[0].XmtBase, adapter->PXmtRings, 0); |
| 3778 | WRITE_REG(adapter->UcodeRegs[0].XmtSize, SXG_XMT_RING_SIZE, TRUE); |
| 3779 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3780 | /* Receive ring base and size */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3781 | WRITE_REG64(adapter, |
| 3782 | adapter->UcodeRegs[0].RcvBase, adapter->PRcvRings, 0); |
| 3783 | WRITE_REG(adapter->UcodeRegs[0].RcvSize, SXG_RCV_RING_SIZE, TRUE); |
| 3784 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3785 | /* Populate the card with receive buffers */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3786 | sxg_stock_rcv_buffers(adapter); |
| 3787 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3788 | /* |
| 3789 | * Initialize checksum offload capabilities. At the moment we always |
| 3790 | * enable IP and TCP receive checksums on the card. Depending on the |
| 3791 | * checksum configuration specified by the user, we can choose to |
| 3792 | * report or ignore the checksum information provided by the card. |
| 3793 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3794 | WRITE_REG(adapter->UcodeRegs[0].ReceiveChecksum, |
| 3795 | SXG_RCV_TCP_CSUM_ENABLED | SXG_RCV_IP_CSUM_ENABLED, TRUE); |
| 3796 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3797 | /* Initialize the MAC, XAUI */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3798 | DBG_ERROR("sxg: %s ENTER sxg_initialize_link\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3799 | status = sxg_initialize_link(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3800 | DBG_ERROR("sxg: %s EXIT sxg_initialize_link status[%x]\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3801 | status); |
| 3802 | if (status != STATUS_SUCCESS) { |
| 3803 | return (status); |
| 3804 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3805 | /* |
| 3806 | * Initialize Dead to FALSE. |
| 3807 | * SlicCheckForHang or SlicDumpThread will take it from here. |
| 3808 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3809 | adapter->Dead = FALSE; |
| 3810 | adapter->PingOutstanding = FALSE; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3811 | adapter->State = SXG_STATE_RUNNING; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3812 | |
| 3813 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XInit", |
| 3814 | adapter, 0, 0, 0); |
| 3815 | return (STATUS_SUCCESS); |
| 3816 | } |
| 3817 | |
| 3818 | /* |
| 3819 | * sxg_fill_descriptor_block - Populate a descriptor block and give it to |
| 3820 | * the card. The caller should hold the RcvQLock |
| 3821 | * |
| 3822 | * Arguments - |
| 3823 | * adapter - A pointer to our adapter structure |
| 3824 | * RcvDescriptorBlockHdr - Descriptor block to fill |
| 3825 | * |
| 3826 | * Return |
| 3827 | * status |
| 3828 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3829 | static int sxg_fill_descriptor_block(struct adapter_t *adapter, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3830 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3831 | { |
| 3832 | u32 i; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3833 | struct sxg_ring_info *RcvRingInfo = &adapter->RcvRingZeroInfo; |
| 3834 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
| 3835 | struct sxg_rcv_descriptor_block *RcvDescriptorBlock; |
| 3836 | struct sxg_cmd *RingDescriptorCmd; |
| 3837 | struct sxg_rcv_ring *RingZero = &adapter->RcvRings[0]; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3838 | |
| 3839 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "FilBlk", |
| 3840 | adapter, adapter->RcvBuffersOnCard, |
| 3841 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
| 3842 | |
| 3843 | ASSERT(RcvDescriptorBlockHdr); |
| 3844 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3845 | /* |
| 3846 | * If we don't have the resources to fill the descriptor block, |
| 3847 | * return failure |
| 3848 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3849 | if ((adapter->FreeRcvBufferCount < SXG_RCV_DESCRIPTORS_PER_BLOCK) || |
| 3850 | SXG_RING_FULL(RcvRingInfo)) { |
| 3851 | adapter->Stats.NoMem++; |
| 3852 | return (STATUS_FAILURE); |
| 3853 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3854 | /* Get a ring descriptor command */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3855 | SXG_GET_CMD(RingZero, |
| 3856 | RcvRingInfo, RingDescriptorCmd, RcvDescriptorBlockHdr); |
| 3857 | ASSERT(RingDescriptorCmd); |
| 3858 | RcvDescriptorBlockHdr->State = SXG_BUFFER_ONCARD; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3859 | RcvDescriptorBlock = (struct sxg_rcv_descriptor_block *) |
| 3860 | RcvDescriptorBlockHdr->VirtualAddress; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3861 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3862 | /* Fill in the descriptor block */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3863 | for (i = 0; i < SXG_RCV_DESCRIPTORS_PER_BLOCK; i++) { |
| 3864 | SXG_GET_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
| 3865 | ASSERT(RcvDataBufferHdr); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3866 | // ASSERT(RcvDataBufferHdr->SxgDumbRcvPacket); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3867 | if (!RcvDataBufferHdr->SxgDumbRcvPacket) { |
| 3868 | SXG_ALLOCATE_RCV_PACKET(adapter, RcvDataBufferHdr, |
| 3869 | adapter->ReceiveBufferSize); |
| 3870 | if(RcvDataBufferHdr->skb) |
| 3871 | RcvDataBufferHdr->SxgDumbRcvPacket = |
| 3872 | RcvDataBufferHdr->skb; |
| 3873 | else |
| 3874 | goto no_memory; |
| 3875 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3876 | SXG_REINIATIALIZE_PACKET(RcvDataBufferHdr->SxgDumbRcvPacket); |
| 3877 | RcvDataBufferHdr->State = SXG_BUFFER_ONCARD; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3878 | RcvDescriptorBlock->Descriptors[i].VirtualAddress = |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3879 | (void *)RcvDataBufferHdr; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3880 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3881 | RcvDescriptorBlock->Descriptors[i].PhysicalAddress = |
| 3882 | RcvDataBufferHdr->PhysicalAddress; |
| 3883 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3884 | /* Add the descriptor block to receive descriptor ring 0 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3885 | RingDescriptorCmd->Sgl = RcvDescriptorBlockHdr->PhysicalAddress; |
| 3886 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3887 | /* |
| 3888 | * RcvBuffersOnCard is not protected via the receive lock (see |
| 3889 | * sxg_process_event_queue) We don't want to grap a lock every time a |
| 3890 | * buffer is returned to us, so we use atomic interlocked functions |
| 3891 | * instead. |
| 3892 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3893 | adapter->RcvBuffersOnCard += SXG_RCV_DESCRIPTORS_PER_BLOCK; |
| 3894 | |
| 3895 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DscBlk", |
| 3896 | RcvDescriptorBlockHdr, |
| 3897 | RingDescriptorCmd, RcvRingInfo->Head, RcvRingInfo->Tail); |
| 3898 | |
| 3899 | WRITE_REG(adapter->UcodeRegs[0].RcvCmd, 1, true); |
| 3900 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFilBlk", |
| 3901 | adapter, adapter->RcvBuffersOnCard, |
| 3902 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
| 3903 | return (STATUS_SUCCESS); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3904 | no_memory: |
| 3905 | return (-ENOMEM); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3906 | } |
| 3907 | |
| 3908 | /* |
| 3909 | * sxg_stock_rcv_buffers - Stock the card with receive buffers |
| 3910 | * |
| 3911 | * Arguments - |
| 3912 | * adapter - A pointer to our adapter structure |
| 3913 | * |
| 3914 | * Return |
| 3915 | * None |
| 3916 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3917 | static void sxg_stock_rcv_buffers(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3918 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3919 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3920 | |
| 3921 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "StockBuf", |
| 3922 | adapter, adapter->RcvBuffersOnCard, |
| 3923 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3924 | /* |
| 3925 | * First, see if we've got less than our minimum threshold of |
| 3926 | * receive buffers, there isn't an allocation in progress, and |
| 3927 | * we haven't exceeded our maximum.. get another block of buffers |
| 3928 | * None of this needs to be SMP safe. It's round numbers. |
| 3929 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3930 | if ((adapter->FreeRcvBufferCount < SXG_MIN_RCV_DATA_BUFFERS) && |
| 3931 | (adapter->AllRcvBlockCount < SXG_MAX_RCV_BLOCKS) && |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 3932 | (atomic_read(&adapter->pending_allocations) == 0)) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3933 | sxg_allocate_buffer_memory(adapter, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3934 | SXG_RCV_BLOCK_SIZE |
| 3935 | (SXG_RCV_DATA_HDR_SIZE), |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3936 | SXG_BUFFER_TYPE_RCV); |
| 3937 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3938 | /* Now grab the RcvQLock lock and proceed */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3939 | spin_lock(&adapter->RcvQLock); |
| 3940 | while (adapter->RcvBuffersOnCard < SXG_RCV_DATA_BUFFERS) { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3941 | struct list_entry *_ple; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3942 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3943 | /* Get a descriptor block */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3944 | RcvDescriptorBlockHdr = NULL; |
| 3945 | if (adapter->FreeRcvBlockCount) { |
| 3946 | _ple = RemoveHeadList(&adapter->FreeRcvBlocks); |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3947 | RcvDescriptorBlockHdr = |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3948 | container_of(_ple, struct sxg_rcv_descriptor_block_hdr, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3949 | FreeList); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3950 | adapter->FreeRcvBlockCount--; |
| 3951 | RcvDescriptorBlockHdr->State = SXG_BUFFER_BUSY; |
| 3952 | } |
| 3953 | |
| 3954 | if (RcvDescriptorBlockHdr == NULL) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3955 | /* Bail out.. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3956 | adapter->Stats.NoMem++; |
| 3957 | break; |
| 3958 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3959 | /* Fill in the descriptor block and give it to the card */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3960 | if (sxg_fill_descriptor_block(adapter, RcvDescriptorBlockHdr) == |
| 3961 | STATUS_FAILURE) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3962 | /* Free the descriptor block */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3963 | SXG_FREE_RCV_DESCRIPTOR_BLOCK(adapter, |
| 3964 | RcvDescriptorBlockHdr); |
| 3965 | break; |
| 3966 | } |
| 3967 | } |
| 3968 | spin_unlock(&adapter->RcvQLock); |
| 3969 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFilBlks", |
| 3970 | adapter, adapter->RcvBuffersOnCard, |
| 3971 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
| 3972 | } |
| 3973 | |
| 3974 | /* |
| 3975 | * sxg_complete_descriptor_blocks - Return descriptor blocks that have been |
| 3976 | * completed by the microcode |
| 3977 | * |
| 3978 | * Arguments - |
| 3979 | * adapter - A pointer to our adapter structure |
| 3980 | * Index - Where the microcode is up to |
| 3981 | * |
| 3982 | * Return |
| 3983 | * None |
| 3984 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3985 | static void sxg_complete_descriptor_blocks(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3986 | unsigned char Index) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3987 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3988 | struct sxg_rcv_ring *RingZero = &adapter->RcvRings[0]; |
| 3989 | struct sxg_ring_info *RcvRingInfo = &adapter->RcvRingZeroInfo; |
| 3990 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr; |
| 3991 | struct sxg_cmd *RingDescriptorCmd; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3992 | |
| 3993 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpRBlks", |
| 3994 | adapter, Index, RcvRingInfo->Head, RcvRingInfo->Tail); |
| 3995 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3996 | /* Now grab the RcvQLock lock and proceed */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3997 | spin_lock(&adapter->RcvQLock); |
| 3998 | ASSERT(Index != RcvRingInfo->Tail); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3999 | while (sxg_ring_get_forward_diff(RcvRingInfo, Index, |
| 4000 | RcvRingInfo->Tail) > 3) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 4001 | /* |
| 4002 | * Locate the current Cmd (ring descriptor entry), and |
| 4003 | * associated receive descriptor block, and advance |
| 4004 | * the tail |
| 4005 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4006 | SXG_RETURN_CMD(RingZero, |
| 4007 | RcvRingInfo, |
| 4008 | RingDescriptorCmd, RcvDescriptorBlockHdr); |
| 4009 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpRBlk", |
| 4010 | RcvRingInfo->Head, RcvRingInfo->Tail, |
| 4011 | RingDescriptorCmd, RcvDescriptorBlockHdr); |
| 4012 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 4013 | /* Clear the SGL field */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4014 | RingDescriptorCmd->Sgl = 0; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 4015 | /* |
| 4016 | * Attempt to refill it and hand it right back to the |
| 4017 | * card. If we fail to refill it, free the descriptor block |
| 4018 | * header. The card will be restocked later via the |
| 4019 | * RcvBuffersOnCard test |
| 4020 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 4021 | if (sxg_fill_descriptor_block(adapter, |
| 4022 | RcvDescriptorBlockHdr) == STATUS_FAILURE) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4023 | SXG_FREE_RCV_DESCRIPTOR_BLOCK(adapter, |
| 4024 | RcvDescriptorBlockHdr); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4025 | } |
| 4026 | spin_unlock(&adapter->RcvQLock); |
| 4027 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XCRBlks", |
| 4028 | adapter, Index, RcvRingInfo->Head, RcvRingInfo->Tail); |
| 4029 | } |
| 4030 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 4031 | /* |
| 4032 | * Read the statistics which the card has been maintaining. |
| 4033 | */ |
| 4034 | void sxg_collect_statistics(struct adapter_t *adapter) |
| 4035 | { |
| 4036 | if(adapter->ucode_stats) |
Mithlesh Thukral | 54aed11 | 2009-01-19 20:27:17 +0530 | [diff] [blame] | 4037 | WRITE_REG64(adapter, adapter->UcodeRegs[0].GetUcodeStats, |
| 4038 | adapter->pucode_stats, 0); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame] | 4039 | adapter->stats.rx_fifo_errors = adapter->ucode_stats->ERDrops; |
| 4040 | adapter->stats.rx_over_errors = adapter->ucode_stats->NBDrops; |
| 4041 | adapter->stats.tx_fifo_errors = adapter->ucode_stats->XDrops; |
| 4042 | } |
| 4043 | |
| 4044 | static struct net_device_stats *sxg_get_stats(struct net_device * dev) |
| 4045 | { |
| 4046 | struct adapter_t *adapter = netdev_priv(dev); |
| 4047 | |
| 4048 | sxg_collect_statistics(adapter); |
| 4049 | return (&adapter->stats); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 4050 | } |
| 4051 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4052 | static struct pci_driver sxg_driver = { |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 4053 | .name = sxg_driver_name, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4054 | .id_table = sxg_pci_tbl, |
| 4055 | .probe = sxg_entry_probe, |
| 4056 | .remove = sxg_entry_remove, |
| 4057 | #if SXG_POWER_MANAGEMENT_ENABLED |
| 4058 | .suspend = sxgpm_suspend, |
| 4059 | .resume = sxgpm_resume, |
| 4060 | #endif |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 4061 | /* .shutdown = slic_shutdown, MOOK_INVESTIGATE */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 4062 | }; |
| 4063 | |
| 4064 | static int __init sxg_module_init(void) |
| 4065 | { |
| 4066 | sxg_init_driver(); |
| 4067 | |
| 4068 | if (debug >= 0) |
| 4069 | sxg_debug = debug; |
| 4070 | |
| 4071 | return pci_register_driver(&sxg_driver); |
| 4072 | } |
| 4073 | |
| 4074 | static void __exit sxg_module_cleanup(void) |
| 4075 | { |
| 4076 | pci_unregister_driver(&sxg_driver); |
| 4077 | } |
| 4078 | |
| 4079 | module_init(sxg_module_init); |
| 4080 | module_exit(sxg_module_cleanup); |