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 | * |
| 33 | **************************************************************************/ |
| 34 | |
| 35 | /* |
| 36 | * FILENAME: sxg.c |
| 37 | * |
| 38 | * The SXG driver for Alacritech's 10Gbe products. |
| 39 | * |
| 40 | * NOTE: This is the standard, non-accelerated version of Alacritech's |
| 41 | * IS-NIC driver. |
| 42 | */ |
| 43 | |
| 44 | #include <linux/kernel.h> |
| 45 | #include <linux/string.h> |
| 46 | #include <linux/errno.h> |
| 47 | #include <linux/module.h> |
| 48 | #include <linux/moduleparam.h> |
| 49 | #include <linux/ioport.h> |
| 50 | #include <linux/slab.h> |
| 51 | #include <linux/interrupt.h> |
| 52 | #include <linux/timer.h> |
| 53 | #include <linux/pci.h> |
| 54 | #include <linux/spinlock.h> |
| 55 | #include <linux/init.h> |
| 56 | #include <linux/netdevice.h> |
| 57 | #include <linux/etherdevice.h> |
| 58 | #include <linux/ethtool.h> |
| 59 | #include <linux/skbuff.h> |
| 60 | #include <linux/delay.h> |
| 61 | #include <linux/types.h> |
| 62 | #include <linux/dma-mapping.h> |
| 63 | #include <linux/mii.h> |
| 64 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 65 | #define SLIC_GET_STATS_ENABLED 0 |
| 66 | #define LINUX_FREES_ADAPTER_RESOURCES 1 |
| 67 | #define SXG_OFFLOAD_IP_CHECKSUM 0 |
| 68 | #define SXG_POWER_MANAGEMENT_ENABLED 0 |
| 69 | #define VPCI 0 |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 70 | #define ATK_DEBUG 1 |
| 71 | |
| 72 | #include "sxg_os.h" |
| 73 | #include "sxghw.h" |
| 74 | #include "sxghif.h" |
| 75 | #include "sxg.h" |
| 76 | #include "sxgdbg.h" |
| 77 | |
| 78 | #include "sxgphycode.h" |
| 79 | #include "saharadbgdownload.h" |
| 80 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 81 | static int sxg_allocate_buffer_memory(struct adapter_t *adapter, u32 Size, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 82 | enum sxg_buffer_type BufferType); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 83 | static void sxg_allocate_rcvblock_complete(struct adapter_t *adapter, |
| 84 | void *RcvBlock, |
| 85 | dma_addr_t PhysicalAddress, |
| 86 | u32 Length); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 87 | static void sxg_allocate_sgl_buffer_complete(struct adapter_t *adapter, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 88 | struct sxg_scatter_gather *SxgSgl, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 89 | dma_addr_t PhysicalAddress, |
| 90 | u32 Length); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 91 | |
| 92 | static void sxg_mcast_init_crc32(void); |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 93 | static int sxg_entry_open(struct net_device *dev); |
| 94 | static int sxg_entry_halt(struct net_device *dev); |
| 95 | static int sxg_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); |
| 96 | 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] | 97 | 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] | 98 | static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 99 | struct sxg_scatter_gather *SxgSgl); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 100 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 101 | static void sxg_handle_interrupt(struct adapter_t *adapter); |
| 102 | static int sxg_process_isr(struct adapter_t *adapter, u32 MessageId); |
| 103 | static u32 sxg_process_event_queue(struct adapter_t *adapter, u32 RssId); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 104 | 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] | 105 | static struct sk_buff *sxg_slow_receive(struct adapter_t *adapter, |
| 106 | struct sxg_event *Event); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 107 | static void sxg_process_rcv_error(struct adapter_t *adapter, u32 ErrorStatus); |
| 108 | static bool sxg_mac_filter(struct adapter_t *adapter, |
| 109 | struct ether_header *EtherHdr, ushort length); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 110 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 111 | static struct net_device_stats *sxg_get_stats(struct net_device * dev); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 112 | void sxg_free_resources(struct adapter_t *adapter); |
| 113 | void sxg_free_rcvblocks(struct adapter_t *adapter); |
| 114 | void sxg_free_sgl_buffers(struct adapter_t *adapter); |
| 115 | void sxg_unmap_resources(struct adapter_t *adapter); |
| 116 | void sxg_free_mcast_addrs(struct adapter_t *adapter); |
| 117 | void sxg_collect_statistics(struct adapter_t *adapter); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 118 | |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 119 | #define XXXTODO 0 |
| 120 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 121 | static int sxg_mac_set_address(struct net_device *dev, void *ptr); |
| 122 | static void sxg_mcast_set_list(struct net_device *dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 123 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 124 | static void sxg_adapter_set_hwaddr(struct adapter_t *adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 125 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 126 | static void sxg_unmap_mmio_space(struct adapter_t *adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 127 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 128 | static int sxg_initialize_adapter(struct adapter_t *adapter); |
| 129 | static void sxg_stock_rcv_buffers(struct adapter_t *adapter); |
| 130 | static void sxg_complete_descriptor_blocks(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 131 | unsigned char Index); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 132 | static int sxg_initialize_link(struct adapter_t *adapter); |
| 133 | static int sxg_phy_init(struct adapter_t *adapter); |
| 134 | static void sxg_link_event(struct adapter_t *adapter); |
| 135 | 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] | 136 | static void sxg_link_state(struct adapter_t *adapter, |
| 137 | enum SXG_LINK_STATE LinkState); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 138 | static int sxg_write_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 139 | u32 DevAddr, u32 RegAddr, u32 Value); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 140 | static int sxg_read_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 141 | u32 DevAddr, u32 RegAddr, u32 *pValue); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 142 | |
| 143 | static unsigned int sxg_first_init = 1; |
| 144 | static char *sxg_banner = |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 145 | "Alacritech SLIC Technology(tm) Server and Storage \ |
| 146 | 10Gbe Accelerator (Non-Accelerated)\n"; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 147 | |
| 148 | static int sxg_debug = 1; |
| 149 | static int debug = -1; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 150 | static struct net_device *head_netdevice = NULL; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 151 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 152 | static struct sxgbase_driver sxg_global = { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 153 | .dynamic_intagg = 1, |
| 154 | }; |
| 155 | static int intagg_delay = 100; |
| 156 | static u32 dynamic_intagg = 0; |
| 157 | |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 158 | char sxg_driver_name[] = "sxg"; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 159 | #define DRV_AUTHOR "Alacritech, Inc. Engineering" |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 160 | #define DRV_DESCRIPTION \ |
| 161 | "Alacritech SLIC Techonology(tm) Non-Accelerated 10Gbe Driver" |
| 162 | #define DRV_COPYRIGHT \ |
| 163 | "Copyright 2000-2008 Alacritech, Inc. All rights reserved." |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 164 | |
| 165 | MODULE_AUTHOR(DRV_AUTHOR); |
| 166 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 167 | MODULE_LICENSE("GPL"); |
| 168 | |
| 169 | module_param(dynamic_intagg, int, 0); |
| 170 | MODULE_PARM_DESC(dynamic_intagg, "Dynamic Interrupt Aggregation Setting"); |
| 171 | module_param(intagg_delay, int, 0); |
| 172 | MODULE_PARM_DESC(intagg_delay, "uSec Interrupt Aggregation Delay"); |
| 173 | |
| 174 | static struct pci_device_id sxg_pci_tbl[] __devinitdata = { |
| 175 | {PCI_DEVICE(SXG_VENDOR_ID, SXG_DEVICE_ID)}, |
| 176 | {0,} |
| 177 | }; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 178 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 179 | MODULE_DEVICE_TABLE(pci, sxg_pci_tbl); |
| 180 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 181 | static inline void sxg_reg32_write(void __iomem *reg, u32 value, bool flush) |
| 182 | { |
| 183 | writel(value, reg); |
| 184 | if (flush) |
| 185 | mb(); |
| 186 | } |
| 187 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 188 | 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] | 189 | u64 value, u32 cpu) |
| 190 | { |
| 191 | u32 value_high = (u32) (value >> 32); |
| 192 | u32 value_low = (u32) (value & 0x00000000FFFFFFFF); |
| 193 | unsigned long flags; |
| 194 | |
| 195 | spin_lock_irqsave(&adapter->Bit64RegLock, flags); |
| 196 | writel(value_high, (void __iomem *)(&adapter->UcodeRegs[cpu].Upper)); |
| 197 | writel(value_low, reg); |
| 198 | spin_unlock_irqrestore(&adapter->Bit64RegLock, flags); |
| 199 | } |
| 200 | |
| 201 | static void sxg_init_driver(void) |
| 202 | { |
| 203 | if (sxg_first_init) { |
| 204 | DBG_ERROR("sxg: %s sxg_first_init set jiffies[%lx]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 205 | __func__, jiffies); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 206 | sxg_first_init = 0; |
| 207 | spin_lock_init(&sxg_global.driver_lock); |
| 208 | } |
| 209 | } |
| 210 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 211 | static void sxg_dbg_macaddrs(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 212 | { |
| 213 | DBG_ERROR(" (%s) curr %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
| 214 | adapter->netdev->name, adapter->currmacaddr[0], |
| 215 | adapter->currmacaddr[1], adapter->currmacaddr[2], |
| 216 | adapter->currmacaddr[3], adapter->currmacaddr[4], |
| 217 | adapter->currmacaddr[5]); |
| 218 | DBG_ERROR(" (%s) mac %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", |
| 219 | adapter->netdev->name, adapter->macaddr[0], |
| 220 | adapter->macaddr[1], adapter->macaddr[2], |
| 221 | adapter->macaddr[3], adapter->macaddr[4], |
| 222 | adapter->macaddr[5]); |
| 223 | return; |
| 224 | } |
| 225 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 226 | /* SXG Globals */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 227 | static struct sxg_driver SxgDriver; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 228 | |
| 229 | #ifdef ATKDBG |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 230 | static struct sxg_trace_buffer LSxgTraceBuffer; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 231 | #endif /* ATKDBG */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 232 | static struct sxg_trace_buffer *SxgTraceBuffer = NULL; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 233 | |
| 234 | /* |
| 235 | * sxg_download_microcode |
| 236 | * |
| 237 | * Download Microcode to Sahara adapter |
| 238 | * |
| 239 | * Arguments - |
| 240 | * adapter - A pointer to our adapter structure |
| 241 | * UcodeSel - microcode file selection |
| 242 | * |
| 243 | * Return |
| 244 | * int |
| 245 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 246 | static bool sxg_download_microcode(struct adapter_t *adapter, |
| 247 | enum SXG_UCODE_SEL UcodeSel) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 248 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 249 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 250 | u32 Section; |
| 251 | u32 ThisSectionSize; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 252 | u32 *Instruction = NULL; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 253 | u32 BaseAddress, AddressOffset, Address; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 254 | /* u32 Failure; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 255 | u32 ValueRead; |
| 256 | u32 i; |
| 257 | u32 numSections = 0; |
| 258 | u32 sectionSize[16]; |
| 259 | u32 sectionStart[16]; |
| 260 | |
| 261 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DnldUcod", |
| 262 | adapter, 0, 0, 0); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 263 | DBG_ERROR("sxg: %s ENTER\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 264 | |
| 265 | switch (UcodeSel) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 266 | case SXG_UCODE_SAHARA: /* Sahara operational ucode */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 267 | numSections = SNumSections; |
| 268 | for (i = 0; i < numSections; i++) { |
| 269 | sectionSize[i] = SSectionSize[i]; |
| 270 | sectionStart[i] = SSectionStart[i]; |
| 271 | } |
| 272 | break; |
| 273 | default: |
| 274 | printk(KERN_ERR KBUILD_MODNAME |
| 275 | ": Woah, big error with the microcode!\n"); |
| 276 | break; |
| 277 | } |
| 278 | |
| 279 | DBG_ERROR("sxg: RESET THE CARD\n"); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 280 | /* First, reset the card */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 281 | WRITE_REG(HwRegs->Reset, 0xDEAD, FLUSH); |
| 282 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 283 | /* |
| 284 | * Download each section of the microcode as specified in |
| 285 | * its download file. The *download.c file is generated using |
| 286 | * the saharaobjtoc facility which converts the metastep .obj |
| 287 | * file to a .c file which contains a two dimentional array. |
| 288 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 289 | for (Section = 0; Section < numSections; Section++) { |
| 290 | DBG_ERROR("sxg: SECTION # %d\n", Section); |
| 291 | switch (UcodeSel) { |
| 292 | case SXG_UCODE_SAHARA: |
| 293 | Instruction = (u32 *) & SaharaUCode[Section][0]; |
| 294 | break; |
| 295 | default: |
| 296 | ASSERT(0); |
| 297 | break; |
| 298 | } |
| 299 | BaseAddress = sectionStart[Section]; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 300 | /* Size in instructions */ |
| 301 | ThisSectionSize = sectionSize[Section] / 12; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 302 | for (AddressOffset = 0; AddressOffset < ThisSectionSize; |
| 303 | AddressOffset++) { |
| 304 | Address = BaseAddress + AddressOffset; |
| 305 | ASSERT((Address & ~MICROCODE_ADDRESS_MASK) == 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 306 | /* Write instruction bits 31 - 0 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 307 | WRITE_REG(HwRegs->UcodeDataLow, *Instruction, FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 308 | /* Write instruction bits 63-32 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 309 | WRITE_REG(HwRegs->UcodeDataMiddle, *(Instruction + 1), |
| 310 | FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 311 | /* Write instruction bits 95-64 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 312 | WRITE_REG(HwRegs->UcodeDataHigh, *(Instruction + 2), |
| 313 | FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 314 | /* Write instruction address with the WRITE bit set */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 315 | WRITE_REG(HwRegs->UcodeAddr, |
| 316 | (Address | MICROCODE_ADDRESS_WRITE), FLUSH); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 317 | /* |
| 318 | * Sahara bug in the ucode download logic - the write to DataLow |
| 319 | * for the next instruction could get corrupted. To avoid this, |
| 320 | * write to DataLow again for this instruction (which may get |
| 321 | * corrupted, but it doesn't matter), then increment the address |
| 322 | * and write the data for the next instruction to DataLow. That |
| 323 | * write should succeed. |
| 324 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 325 | WRITE_REG(HwRegs->UcodeDataLow, *Instruction, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 326 | /* Advance 3 u32S to start of next instruction */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 327 | Instruction += 3; |
| 328 | } |
| 329 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 330 | /* |
| 331 | * Now repeat the entire operation reading the instruction back and |
| 332 | * checking for parity errors |
| 333 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 334 | for (Section = 0; Section < numSections; Section++) { |
| 335 | DBG_ERROR("sxg: check SECTION # %d\n", Section); |
| 336 | switch (UcodeSel) { |
| 337 | case SXG_UCODE_SAHARA: |
| 338 | Instruction = (u32 *) & SaharaUCode[Section][0]; |
| 339 | break; |
| 340 | default: |
| 341 | ASSERT(0); |
| 342 | break; |
| 343 | } |
| 344 | BaseAddress = sectionStart[Section]; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 345 | /* Size in instructions */ |
| 346 | ThisSectionSize = sectionSize[Section] / 12; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 347 | for (AddressOffset = 0; AddressOffset < ThisSectionSize; |
| 348 | AddressOffset++) { |
| 349 | Address = BaseAddress + AddressOffset; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 350 | /* Write the address with the READ bit set */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 351 | WRITE_REG(HwRegs->UcodeAddr, |
| 352 | (Address | MICROCODE_ADDRESS_READ), FLUSH); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 353 | /* Read it back and check parity bit. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 354 | READ_REG(HwRegs->UcodeAddr, ValueRead); |
| 355 | if (ValueRead & MICROCODE_ADDRESS_PARITY) { |
| 356 | DBG_ERROR("sxg: %s PARITY ERROR\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 357 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 358 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 359 | return FALSE; /* Parity error */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 360 | } |
| 361 | ASSERT((ValueRead & MICROCODE_ADDRESS_MASK) == Address); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 362 | /* Read the instruction back and compare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 363 | READ_REG(HwRegs->UcodeDataLow, ValueRead); |
| 364 | if (ValueRead != *Instruction) { |
| 365 | DBG_ERROR("sxg: %s MISCOMPARE LOW\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 366 | __func__); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 367 | return FALSE; /* Miscompare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 368 | } |
| 369 | READ_REG(HwRegs->UcodeDataMiddle, ValueRead); |
| 370 | if (ValueRead != *(Instruction + 1)) { |
| 371 | DBG_ERROR("sxg: %s MISCOMPARE MIDDLE\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 372 | __func__); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 373 | return FALSE; /* Miscompare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 374 | } |
| 375 | READ_REG(HwRegs->UcodeDataHigh, ValueRead); |
| 376 | if (ValueRead != *(Instruction + 2)) { |
| 377 | DBG_ERROR("sxg: %s MISCOMPARE HIGH\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 378 | __func__); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 379 | return FALSE; /* Miscompare */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 380 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 381 | /* Advance 3 u32S to start of next instruction */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 382 | Instruction += 3; |
| 383 | } |
| 384 | } |
| 385 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 386 | /* Everything OK, Go. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 387 | WRITE_REG(HwRegs->UcodeAddr, MICROCODE_ADDRESS_GO, FLUSH); |
| 388 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 389 | /* |
| 390 | * Poll the CardUp register to wait for microcode to initialize |
| 391 | * Give up after 10,000 attemps (500ms). |
| 392 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 393 | for (i = 0; i < 10000; i++) { |
| 394 | udelay(50); |
| 395 | READ_REG(adapter->UcodeRegs[0].CardUp, ValueRead); |
| 396 | if (ValueRead == 0xCAFE) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 397 | DBG_ERROR("sxg: %s BOO YA 0xCAFE\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 398 | break; |
| 399 | } |
| 400 | } |
| 401 | if (i == 10000) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 402 | DBG_ERROR("sxg: %s TIMEOUT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 403 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 404 | return FALSE; /* Timeout */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 405 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 406 | /* |
| 407 | * Now write the LoadSync register. This is used to |
| 408 | * synchronize with the card so it can scribble on the memory |
| 409 | * that contained 0xCAFE from the "CardUp" step above |
| 410 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 411 | if (UcodeSel == SXG_UCODE_SAHARA) { |
| 412 | WRITE_REG(adapter->UcodeRegs[0].LoadSync, 0, FLUSH); |
| 413 | } |
| 414 | |
| 415 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDnldUcd", |
| 416 | adapter, 0, 0, 0); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 417 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 418 | |
| 419 | return (TRUE); |
| 420 | } |
| 421 | |
| 422 | /* |
| 423 | * sxg_allocate_resources - Allocate memory and locks |
| 424 | * |
| 425 | * Arguments - |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 426 | * adapter - A pointer to our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 427 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 428 | * Return - int |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 429 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 430 | static int sxg_allocate_resources(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 431 | { |
| 432 | int status; |
| 433 | u32 i; |
| 434 | u32 RssIds, IsrCount; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 435 | /* struct sxg_xmt_ring *XmtRing; */ |
| 436 | /* struct sxg_rcv_ring *RcvRing; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 437 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 438 | DBG_ERROR("%s ENTER\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 439 | |
| 440 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AllocRes", |
| 441 | adapter, 0, 0, 0); |
| 442 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 443 | /* Windows tells us how many CPUs it plans to use for */ |
| 444 | /* RSS */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 445 | RssIds = SXG_RSS_CPU_COUNT(adapter); |
| 446 | IsrCount = adapter->MsiEnabled ? RssIds : 1; |
| 447 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 448 | DBG_ERROR("%s Setup the spinlocks\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 449 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 450 | /* Allocate spinlocks and initialize listheads first. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 451 | spin_lock_init(&adapter->RcvQLock); |
| 452 | spin_lock_init(&adapter->SglQLock); |
| 453 | spin_lock_init(&adapter->XmtZeroLock); |
| 454 | spin_lock_init(&adapter->Bit64RegLock); |
| 455 | spin_lock_init(&adapter->AdapterLock); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 456 | atomic_set(&adapter->pending_allocations, 0); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 457 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 458 | DBG_ERROR("%s Setup the lists\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 459 | |
| 460 | InitializeListHead(&adapter->FreeRcvBuffers); |
| 461 | InitializeListHead(&adapter->FreeRcvBlocks); |
| 462 | InitializeListHead(&adapter->AllRcvBlocks); |
| 463 | InitializeListHead(&adapter->FreeSglBuffers); |
| 464 | InitializeListHead(&adapter->AllSglBuffers); |
| 465 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 466 | /* |
| 467 | * Mark these basic allocations done. This flags essentially |
| 468 | * tells the SxgFreeResources routine that it can grab spinlocks |
| 469 | * and reference listheads. |
| 470 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 471 | adapter->BasicAllocations = TRUE; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 472 | /* |
| 473 | * Main allocation loop. Start with the maximum supported by |
| 474 | * the microcode and back off if memory allocation |
| 475 | * fails. If we hit a minimum, fail. |
| 476 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 477 | |
| 478 | for (;;) { |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 479 | DBG_ERROR("%s Allocate XmtRings size[%x]\n", __func__, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 480 | (unsigned int)(sizeof(struct sxg_xmt_ring) * 1)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 481 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 482 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 483 | * Start with big items first - receive and transmit rings. |
| 484 | * At the moment I'm going to keep the ring size fixed and |
| 485 | * adjust the TCBs if we fail. Later we might |
| 486 | * consider reducing the ring size as well.. |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 487 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 488 | adapter->XmtRings = pci_alloc_consistent(adapter->pcidev, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 489 | sizeof(struct sxg_xmt_ring) * |
| 490 | 1, |
| 491 | &adapter->PXmtRings); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 492 | DBG_ERROR("%s XmtRings[%p]\n", __func__, adapter->XmtRings); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 493 | |
| 494 | if (!adapter->XmtRings) { |
| 495 | goto per_tcb_allocation_failed; |
| 496 | } |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 497 | memset(adapter->XmtRings, 0, sizeof(struct sxg_xmt_ring) * 1); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 498 | |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 499 | DBG_ERROR("%s Allocate RcvRings size[%x]\n", __func__, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 500 | (unsigned int)(sizeof(struct sxg_rcv_ring) * 1)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 501 | adapter->RcvRings = |
| 502 | pci_alloc_consistent(adapter->pcidev, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 503 | sizeof(struct sxg_rcv_ring) * 1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 504 | &adapter->PRcvRings); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 505 | DBG_ERROR("%s RcvRings[%p]\n", __func__, adapter->RcvRings); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 506 | if (!adapter->RcvRings) { |
| 507 | goto per_tcb_allocation_failed; |
| 508 | } |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 509 | memset(adapter->RcvRings, 0, sizeof(struct sxg_rcv_ring) * 1); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 510 | adapter->ucode_stats = kzalloc(sizeof(struct sxg_ucode_stats), GFP_ATOMIC); |
| 511 | adapter->pucode_stats = pci_map_single(adapter->pcidev, |
| 512 | adapter->ucode_stats, |
| 513 | sizeof(struct sxg_ucode_stats), |
| 514 | PCI_DMA_FROMDEVICE); |
| 515 | // memset(adapter->ucode_stats, 0, sizeof(struct sxg_ucode_stats)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 516 | break; |
| 517 | |
| 518 | per_tcb_allocation_failed: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 519 | /* an allocation failed. Free any successful allocations. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 520 | if (adapter->XmtRings) { |
| 521 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 522 | sizeof(struct sxg_xmt_ring) * 1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 523 | adapter->XmtRings, |
| 524 | adapter->PXmtRings); |
| 525 | adapter->XmtRings = NULL; |
| 526 | } |
| 527 | if (adapter->RcvRings) { |
| 528 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 529 | sizeof(struct sxg_rcv_ring) * 1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 530 | adapter->RcvRings, |
| 531 | adapter->PRcvRings); |
| 532 | adapter->RcvRings = NULL; |
| 533 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 534 | /* Loop around and try again.... */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 535 | if (adapter->ucode_stats) { |
| 536 | pci_unmap_single(adapter->pcidev, |
| 537 | sizeof(struct sxg_ucode_stats), |
| 538 | adapter->pucode_stats, PCI_DMA_FROMDEVICE); |
| 539 | adapter->ucode_stats = NULL; |
| 540 | } |
| 541 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 542 | } |
| 543 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 544 | 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] | 545 | /* Initialize rcv zero and xmt zero rings */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 546 | SXG_INITIALIZE_RING(adapter->RcvRingZeroInfo, SXG_RCV_RING_SIZE); |
| 547 | SXG_INITIALIZE_RING(adapter->XmtRingZeroInfo, SXG_XMT_RING_SIZE); |
| 548 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 549 | /* Sanity check receive data structure format */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 550 | /* ASSERT((adapter->ReceiveBufferSize == SXG_RCV_DATA_BUFFER_SIZE) || |
| 551 | (adapter->ReceiveBufferSize == SXG_RCV_JUMBO_BUFFER_SIZE)); */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 552 | ASSERT(sizeof(struct sxg_rcv_descriptor_block) == |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 553 | SXG_RCV_DESCRIPTOR_BLOCK_SIZE); |
| 554 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 555 | /* |
| 556 | * Allocate receive data buffers. We allocate a block of buffers and |
| 557 | * a corresponding descriptor block at once. See sxghw.h:SXG_RCV_BLOCK |
| 558 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 559 | for (i = 0; i < SXG_INITIAL_RCV_DATA_BUFFERS; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 560 | i += SXG_RCV_DESCRIPTORS_PER_BLOCK) { |
| 561 | sxg_allocate_buffer_memory(adapter, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 562 | SXG_RCV_BLOCK_SIZE(SXG_RCV_DATA_HDR_SIZE), |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 563 | SXG_BUFFER_TYPE_RCV); |
| 564 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 565 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 566 | * NBL resource allocation can fail in the 'AllocateComplete' routine, |
| 567 | * which doesn't return status. Make sure we got the number of buffers |
| 568 | * we requested |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 569 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 570 | if (adapter->FreeRcvBufferCount < SXG_INITIAL_RCV_DATA_BUFFERS) { |
| 571 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF6", |
| 572 | adapter, adapter->FreeRcvBufferCount, SXG_MAX_ENTRIES, |
| 573 | 0); |
| 574 | return (STATUS_RESOURCES); |
| 575 | } |
| 576 | |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 577 | DBG_ERROR("%s Allocate EventRings size[%x]\n", __func__, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 578 | (unsigned int)(sizeof(struct sxg_event_ring) * RssIds)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 579 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 580 | /* Allocate event queues. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 581 | adapter->EventRings = pci_alloc_consistent(adapter->pcidev, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 582 | sizeof(struct sxg_event_ring) * |
| 583 | RssIds, |
| 584 | &adapter->PEventRings); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 585 | |
| 586 | if (!adapter->EventRings) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 587 | /* Caller will call SxgFreeAdapter to clean up above |
| 588 | * allocations */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 589 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF8", |
| 590 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 591 | status = STATUS_RESOURCES; |
| 592 | goto per_tcb_allocation_failed; |
| 593 | } |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 594 | memset(adapter->EventRings, 0, sizeof(struct sxg_event_ring) * RssIds); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 595 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 596 | DBG_ERROR("%s Allocate ISR size[%x]\n", __func__, IsrCount); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 597 | /* Allocate ISR */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 598 | adapter->Isr = pci_alloc_consistent(adapter->pcidev, |
| 599 | IsrCount, &adapter->PIsr); |
| 600 | if (!adapter->Isr) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 601 | /* Caller will call SxgFreeAdapter to clean up above |
| 602 | * allocations */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 603 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF9", |
| 604 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 605 | status = STATUS_RESOURCES; |
| 606 | goto per_tcb_allocation_failed; |
| 607 | } |
| 608 | memset(adapter->Isr, 0, sizeof(u32) * IsrCount); |
| 609 | |
Greg Kroah-Hartman | d78404c | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 610 | DBG_ERROR("%s Allocate shared XMT ring zero index location size[%x]\n", |
| 611 | __func__, (unsigned int)sizeof(u32)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 612 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 613 | /* Allocate shared XMT ring zero index location */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 614 | adapter->XmtRingZeroIndex = pci_alloc_consistent(adapter->pcidev, |
| 615 | sizeof(u32), |
| 616 | &adapter-> |
| 617 | PXmtRingZeroIndex); |
| 618 | if (!adapter->XmtRingZeroIndex) { |
| 619 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAResF10", |
| 620 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 621 | status = STATUS_RESOURCES; |
| 622 | goto per_tcb_allocation_failed; |
| 623 | } |
| 624 | memset(adapter->XmtRingZeroIndex, 0, sizeof(u32)); |
| 625 | |
| 626 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlcResS", |
| 627 | adapter, SXG_MAX_ENTRIES, 0, 0); |
| 628 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 629 | DBG_ERROR("%s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 630 | return (STATUS_SUCCESS); |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * sxg_config_pci - |
| 635 | * |
| 636 | * Set up PCI Configuration space |
| 637 | * |
| 638 | * Arguments - |
| 639 | * pcidev - A pointer to our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 640 | */ |
| 641 | static void sxg_config_pci(struct pci_dev *pcidev) |
| 642 | { |
| 643 | u16 pci_command; |
| 644 | u16 new_command; |
| 645 | |
| 646 | pci_read_config_word(pcidev, PCI_COMMAND, &pci_command); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 647 | 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] | 648 | /* Set the command register */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 649 | new_command = pci_command | ( |
| 650 | /* Memory Space Enable */ |
| 651 | PCI_COMMAND_MEMORY | |
| 652 | /* Bus master enable */ |
| 653 | PCI_COMMAND_MASTER | |
| 654 | /* Memory write and invalidate */ |
| 655 | PCI_COMMAND_INVALIDATE | |
| 656 | /* Parity error response */ |
| 657 | PCI_COMMAND_PARITY | |
| 658 | /* System ERR */ |
| 659 | PCI_COMMAND_SERR | |
| 660 | /* Fast back-to-back */ |
| 661 | PCI_COMMAND_FAST_BACK); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 662 | if (pci_command != new_command) { |
| 663 | DBG_ERROR("%s -- Updating PCI COMMAND register %4.4x->%4.4x.\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 664 | __func__, pci_command, new_command); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 665 | pci_write_config_word(pcidev, PCI_COMMAND, new_command); |
| 666 | } |
| 667 | } |
| 668 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 669 | /* |
| 670 | * sxg_read_config |
| 671 | * @adapter : Pointer to the adapter structure for the card |
| 672 | * This function will read the configuration data from EEPROM/FLASH |
| 673 | */ |
| 674 | static inline int sxg_read_config(struct adapter_t *adapter) |
| 675 | { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 676 | /* struct sxg_config data; */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 677 | struct sw_cfg_data *data; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 678 | dma_addr_t p_addr; |
| 679 | unsigned long status; |
| 680 | unsigned long i; |
| 681 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 682 | data = pci_alloc_consistent(adapter->pcidev, |
| 683 | sizeof(struct sw_cfg_data), &p_addr); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 684 | if(!data) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 685 | /* |
| 686 | * We cant get even this much memory. Raise a hell |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 687 | * Get out of here |
| 688 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 689 | printk(KERN_ERR"%s : Could not allocate memory for reading \ |
| 690 | EEPROM\n", __FUNCTION__); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 691 | return -ENOMEM; |
| 692 | } |
| 693 | |
| 694 | WRITE_REG(adapter->UcodeRegs[0].ConfigStat, SXG_CFG_TIMEOUT, TRUE); |
| 695 | |
| 696 | WRITE_REG64(adapter, adapter->UcodeRegs[0].Config, p_addr, 0); |
| 697 | for(i=0; i<1000; i++) { |
| 698 | READ_REG(adapter->UcodeRegs[0].ConfigStat, status); |
| 699 | if (status != SXG_CFG_TIMEOUT) |
| 700 | break; |
| 701 | mdelay(1); /* Do we really need this */ |
| 702 | } |
| 703 | |
| 704 | switch(status) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 705 | /* Config read from EEPROM succeeded */ |
| 706 | case SXG_CFG_LOAD_EEPROM: |
| 707 | /* Config read from Flash succeeded */ |
| 708 | case SXG_CFG_LOAD_FLASH: |
| 709 | /* Copy the MAC address to adapter structure */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 710 | /* TODO: We are not doing the remaining part : FRU, |
| 711 | * etc |
| 712 | */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 713 | memcpy(adapter->macaddr, data->MacAddr[0].MacAddr, |
| 714 | sizeof(struct sxg_config_mac)); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 715 | break; |
| 716 | case SXG_CFG_TIMEOUT: |
| 717 | case SXG_CFG_LOAD_INVALID: |
| 718 | case SXG_CFG_LOAD_ERROR: |
| 719 | default: /* Fix default handler later */ |
| 720 | printk(KERN_WARNING"%s : We could not read the config \ |
| 721 | word. Status = %ld\n", __FUNCTION__, status); |
| 722 | break; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 723 | } |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 724 | pci_free_consistent(adapter->pcidev, sizeof(struct sw_cfg_data), data, |
| 725 | p_addr); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 726 | if (adapter->netdev) { |
| 727 | memcpy(adapter->netdev->dev_addr, adapter->currmacaddr, 6); |
| 728 | memcpy(adapter->netdev->perm_addr, adapter->currmacaddr, 6); |
| 729 | } |
| 730 | printk("LINSYS : These are the new MAC address\n"); |
| 731 | sxg_dbg_macaddrs(adapter); |
| 732 | |
| 733 | return status; |
| 734 | } |
| 735 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 736 | static int sxg_entry_probe(struct pci_dev *pcidev, |
| 737 | const struct pci_device_id *pci_tbl_entry) |
| 738 | { |
| 739 | static int did_version = 0; |
| 740 | int err; |
| 741 | struct net_device *netdev; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 742 | struct adapter_t *adapter; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 743 | void __iomem *memmapped_ioaddr; |
| 744 | u32 status = 0; |
| 745 | ulong mmio_start = 0; |
| 746 | ulong mmio_len = 0; |
| 747 | |
| 748 | 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] | 749 | __func__, jiffies, smp_processor_id()); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 750 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 751 | /* Initialize trace buffer */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 752 | #ifdef ATKDBG |
| 753 | SxgTraceBuffer = &LSxgTraceBuffer; |
| 754 | SXG_TRACE_INIT(SxgTraceBuffer, TRACE_NOISY); |
| 755 | #endif |
| 756 | |
| 757 | sxg_global.dynamic_intagg = dynamic_intagg; |
| 758 | |
| 759 | err = pci_enable_device(pcidev); |
| 760 | |
| 761 | DBG_ERROR("Call pci_enable_device(%p) status[%x]\n", pcidev, err); |
| 762 | if (err) { |
| 763 | return err; |
| 764 | } |
| 765 | |
| 766 | if (sxg_debug > 0 && did_version++ == 0) { |
| 767 | printk(KERN_INFO "%s\n", sxg_banner); |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 768 | printk(KERN_INFO "%s\n", SXG_DRV_VERSION); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 769 | } |
| 770 | |
| 771 | if (!(err = pci_set_dma_mask(pcidev, DMA_64BIT_MASK))) { |
| 772 | DBG_ERROR("pci_set_dma_mask(DMA_64BIT_MASK) successful\n"); |
| 773 | } else { |
| 774 | if ((err = pci_set_dma_mask(pcidev, DMA_32BIT_MASK))) { |
| 775 | DBG_ERROR |
| 776 | ("No usable DMA configuration, aborting err[%x]\n", |
| 777 | err); |
| 778 | return err; |
| 779 | } |
| 780 | DBG_ERROR("pci_set_dma_mask(DMA_32BIT_MASK) successful\n"); |
| 781 | } |
| 782 | |
| 783 | DBG_ERROR("Call pci_request_regions\n"); |
| 784 | |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 785 | err = pci_request_regions(pcidev, sxg_driver_name); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 786 | if (err) { |
| 787 | DBG_ERROR("pci_request_regions FAILED err[%x]\n", err); |
| 788 | return err; |
| 789 | } |
| 790 | |
| 791 | DBG_ERROR("call pci_set_master\n"); |
| 792 | pci_set_master(pcidev); |
| 793 | |
| 794 | DBG_ERROR("call alloc_etherdev\n"); |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 795 | netdev = alloc_etherdev(sizeof(struct adapter_t)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 796 | if (!netdev) { |
| 797 | err = -ENOMEM; |
| 798 | goto err_out_exit_sxg_probe; |
| 799 | } |
| 800 | DBG_ERROR("alloc_etherdev for slic netdev[%p]\n", netdev); |
| 801 | |
| 802 | SET_NETDEV_DEV(netdev, &pcidev->dev); |
| 803 | |
| 804 | pci_set_drvdata(pcidev, netdev); |
| 805 | adapter = netdev_priv(netdev); |
| 806 | adapter->netdev = netdev; |
| 807 | adapter->pcidev = pcidev; |
| 808 | |
| 809 | mmio_start = pci_resource_start(pcidev, 0); |
| 810 | mmio_len = pci_resource_len(pcidev, 0); |
| 811 | |
| 812 | DBG_ERROR("sxg: call ioremap(mmio_start[%lx], mmio_len[%lx])\n", |
| 813 | mmio_start, mmio_len); |
| 814 | |
| 815 | memmapped_ioaddr = ioremap(mmio_start, mmio_len); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 816 | DBG_ERROR("sxg: %s MEMMAPPED_IOADDR [%p]\n", __func__, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 817 | memmapped_ioaddr); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 818 | if (!memmapped_ioaddr) { |
| 819 | DBG_ERROR("%s cannot remap MMIO region %lx @ %lx\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 820 | __func__, mmio_len, mmio_start); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 821 | goto err_out_free_mmio_region; |
| 822 | } |
| 823 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 824 | DBG_ERROR("sxg: %s found Alacritech SXG PCI, MMIO at %p, start[%lx] \ |
| 825 | len[%lx], IRQ %d.\n", __func__, memmapped_ioaddr, mmio_start, |
| 826 | mmio_len, pcidev->irq); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 827 | |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 828 | adapter->HwRegs = (void *)memmapped_ioaddr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 829 | adapter->base_addr = memmapped_ioaddr; |
| 830 | |
| 831 | mmio_start = pci_resource_start(pcidev, 2); |
| 832 | mmio_len = pci_resource_len(pcidev, 2); |
| 833 | |
| 834 | DBG_ERROR("sxg: call ioremap(mmio_start[%lx], mmio_len[%lx])\n", |
| 835 | mmio_start, mmio_len); |
| 836 | |
| 837 | memmapped_ioaddr = ioremap(mmio_start, mmio_len); |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 838 | DBG_ERROR("sxg: %s MEMMAPPED_IOADDR [%p]\n", __func__, |
| 839 | memmapped_ioaddr); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 840 | if (!memmapped_ioaddr) { |
| 841 | DBG_ERROR("%s cannot remap MMIO region %lx @ %lx\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 842 | __func__, mmio_len, mmio_start); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 843 | goto err_out_free_mmio_region; |
| 844 | } |
| 845 | |
| 846 | DBG_ERROR("sxg: %s found Alacritech SXG PCI, MMIO at %p, " |
| 847 | "start[%lx] len[%lx], IRQ %d.\n", __func__, |
| 848 | memmapped_ioaddr, mmio_start, mmio_len, pcidev->irq); |
| 849 | |
| 850 | adapter->UcodeRegs = (void *)memmapped_ioaddr; |
| 851 | |
| 852 | adapter->State = SXG_STATE_INITIALIZING; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 853 | /* |
| 854 | * Maintain a list of all adapters anchored by |
| 855 | * the global SxgDriver structure. |
| 856 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 857 | adapter->Next = SxgDriver.Adapters; |
| 858 | SxgDriver.Adapters = adapter; |
| 859 | adapter->AdapterID = ++SxgDriver.AdapterID; |
| 860 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 861 | /* Initialize CRC table used to determine multicast hash */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 862 | sxg_mcast_init_crc32(); |
| 863 | |
| 864 | adapter->JumboEnabled = FALSE; |
| 865 | adapter->RssEnabled = FALSE; |
| 866 | if (adapter->JumboEnabled) { |
| 867 | adapter->FrameSize = JUMBOMAXFRAME; |
| 868 | adapter->ReceiveBufferSize = SXG_RCV_JUMBO_BUFFER_SIZE; |
| 869 | } else { |
| 870 | adapter->FrameSize = ETHERMAXFRAME; |
| 871 | adapter->ReceiveBufferSize = SXG_RCV_DATA_BUFFER_SIZE; |
| 872 | } |
| 873 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 874 | /* |
| 875 | * status = SXG_READ_EEPROM(adapter); |
| 876 | * if (!status) { |
| 877 | * goto sxg_init_bad; |
| 878 | * } |
| 879 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 880 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 881 | DBG_ERROR("sxg: %s ENTER sxg_config_pci\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 882 | sxg_config_pci(pcidev); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 883 | DBG_ERROR("sxg: %s EXIT sxg_config_pci\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 884 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 885 | DBG_ERROR("sxg: %s ENTER sxg_init_driver\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 886 | sxg_init_driver(); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 887 | DBG_ERROR("sxg: %s EXIT sxg_init_driver\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 888 | |
| 889 | adapter->vendid = pci_tbl_entry->vendor; |
| 890 | adapter->devid = pci_tbl_entry->device; |
| 891 | adapter->subsysid = pci_tbl_entry->subdevice; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 892 | adapter->slotnumber = ((pcidev->devfn >> 3) & 0x1F); |
| 893 | adapter->functionnumber = (pcidev->devfn & 0x7); |
| 894 | adapter->memorylength = pci_resource_len(pcidev, 0); |
| 895 | adapter->irq = pcidev->irq; |
| 896 | adapter->next_netdevice = head_netdevice; |
| 897 | head_netdevice = netdev; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 898 | adapter->port = 0; /*adapter->functionnumber; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 899 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 900 | /* Allocate memory and other resources */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 901 | DBG_ERROR("sxg: %s ENTER sxg_allocate_resources\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 902 | status = sxg_allocate_resources(adapter); |
| 903 | DBG_ERROR("sxg: %s EXIT sxg_allocate_resources status %x\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 904 | __func__, status); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 905 | if (status != STATUS_SUCCESS) { |
| 906 | goto err_out_unmap; |
| 907 | } |
| 908 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 909 | DBG_ERROR("sxg: %s ENTER sxg_download_microcode\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 910 | if (sxg_download_microcode(adapter, SXG_UCODE_SAHARA)) { |
| 911 | DBG_ERROR("sxg: %s ENTER sxg_adapter_set_hwaddr\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 912 | __func__); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 913 | sxg_read_config(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 914 | sxg_adapter_set_hwaddr(adapter); |
| 915 | } else { |
| 916 | adapter->state = ADAPT_FAIL; |
| 917 | adapter->linkstate = LINK_DOWN; |
| 918 | DBG_ERROR("sxg_download_microcode FAILED status[%x]\n", status); |
| 919 | } |
| 920 | |
| 921 | netdev->base_addr = (unsigned long)adapter->base_addr; |
| 922 | netdev->irq = adapter->irq; |
| 923 | netdev->open = sxg_entry_open; |
| 924 | netdev->stop = sxg_entry_halt; |
| 925 | netdev->hard_start_xmit = sxg_send_packets; |
| 926 | netdev->do_ioctl = sxg_ioctl; |
| 927 | #if XXXTODO |
| 928 | netdev->set_mac_address = sxg_mac_set_address; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 929 | #endif |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 930 | netdev->get_stats = sxg_get_stats; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 931 | netdev->set_multicast_list = sxg_mcast_set_list; |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 932 | SET_ETHTOOL_OPS(netdev, &sxg_nic_ethtool_ops); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 933 | |
| 934 | strcpy(netdev->name, "eth%d"); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 935 | /* strcpy(netdev->name, pci_name(pcidev)); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 936 | if ((err = register_netdev(netdev))) { |
| 937 | DBG_ERROR("Cannot register net device, aborting. %s\n", |
| 938 | netdev->name); |
| 939 | goto err_out_unmap; |
| 940 | } |
| 941 | |
| 942 | DBG_ERROR |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 943 | ("sxg: %s addr 0x%lx, irq %d, MAC addr \ |
| 944 | %02X:%02X:%02X:%02X:%02X:%02X\n", |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 945 | netdev->name, netdev->base_addr, pcidev->irq, netdev->dev_addr[0], |
| 946 | netdev->dev_addr[1], netdev->dev_addr[2], netdev->dev_addr[3], |
| 947 | netdev->dev_addr[4], netdev->dev_addr[5]); |
| 948 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 949 | /* sxg_init_bad: */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 950 | ASSERT(status == FALSE); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 951 | /* sxg_free_adapter(adapter); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 952 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 953 | 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] | 954 | status, jiffies, smp_processor_id()); |
| 955 | return status; |
| 956 | |
| 957 | err_out_unmap: |
| 958 | iounmap((void *)memmapped_ioaddr); |
| 959 | |
| 960 | err_out_free_mmio_region: |
| 961 | release_mem_region(mmio_start, mmio_len); |
| 962 | |
| 963 | err_out_exit_sxg_probe: |
| 964 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 965 | DBG_ERROR("%s EXIT jiffies[%lx] cpu %d\n", __func__, jiffies, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 966 | smp_processor_id()); |
| 967 | |
| 968 | return -ENODEV; |
| 969 | } |
| 970 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 971 | /* |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 972 | * LINE BASE Interrupt routines.. |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 973 | * |
| 974 | * sxg_disable_interrupt |
| 975 | * |
| 976 | * DisableInterrupt Handler |
| 977 | * |
| 978 | * Arguments: |
| 979 | * |
| 980 | * adapter: Our adapter structure |
| 981 | * |
| 982 | * Return Value: |
| 983 | * None. |
| 984 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 985 | static void sxg_disable_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 986 | { |
| 987 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DisIntr", |
| 988 | adapter, adapter->InterruptsEnabled, 0, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 989 | /* For now, RSS is disabled with line based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 990 | ASSERT(adapter->RssEnabled == FALSE); |
| 991 | ASSERT(adapter->MsiEnabled == FALSE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 992 | /* Turn off interrupts by writing to the icr register. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 993 | WRITE_REG(adapter->UcodeRegs[0].Icr, SXG_ICR(0, SXG_ICR_DISABLE), TRUE); |
| 994 | |
| 995 | adapter->InterruptsEnabled = 0; |
| 996 | |
| 997 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDisIntr", |
| 998 | adapter, adapter->InterruptsEnabled, 0, 0); |
| 999 | } |
| 1000 | |
| 1001 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1002 | * sxg_enable_interrupt |
| 1003 | * |
| 1004 | * EnableInterrupt Handler |
| 1005 | * |
| 1006 | * Arguments: |
| 1007 | * |
| 1008 | * adapter: Our adapter structure |
| 1009 | * |
| 1010 | * Return Value: |
| 1011 | * None. |
| 1012 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1013 | static void sxg_enable_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1014 | { |
| 1015 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "EnIntr", |
| 1016 | adapter, adapter->InterruptsEnabled, 0, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1017 | /* For now, RSS is disabled with line based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1018 | ASSERT(adapter->RssEnabled == FALSE); |
| 1019 | ASSERT(adapter->MsiEnabled == FALSE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1020 | /* Turn on interrupts by writing to the icr register. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1021 | WRITE_REG(adapter->UcodeRegs[0].Icr, SXG_ICR(0, SXG_ICR_ENABLE), TRUE); |
| 1022 | |
| 1023 | adapter->InterruptsEnabled = 1; |
| 1024 | |
| 1025 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XEnIntr", |
| 1026 | adapter, 0, 0, 0); |
| 1027 | } |
| 1028 | |
| 1029 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1030 | * sxg_isr - Process an line-based interrupt |
| 1031 | * |
| 1032 | * Arguments: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1033 | * Context - Our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1034 | * QueueDefault - Output parameter to queue to default CPU |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1035 | * TargetCpus - Output bitmap to schedule DPC's |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1036 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1037 | * Return Value: TRUE if our interrupt |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1038 | */ |
| 1039 | static irqreturn_t sxg_isr(int irq, void *dev_id) |
| 1040 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1041 | struct net_device *dev = (struct net_device *) dev_id; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1042 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1043 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 1044 | if(adapter->state != ADAPT_UP) |
| 1045 | return IRQ_NONE; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1046 | adapter->Stats.NumInts++; |
| 1047 | if (adapter->Isr[0] == 0) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1048 | /* |
| 1049 | * The SLIC driver used to experience a number of spurious |
| 1050 | * interrupts due to the delay associated with the masking of |
| 1051 | * the interrupt (we'd bounce back in here). If we see that |
| 1052 | * again with Sahara,add a READ_REG of the Icr register after |
| 1053 | * the WRITE_REG below. |
| 1054 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1055 | adapter->Stats.FalseInts++; |
| 1056 | return IRQ_NONE; |
| 1057 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1058 | /* |
| 1059 | * Move the Isr contents and clear the value in |
| 1060 | * shared memory, and mask interrupts |
| 1061 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1062 | adapter->IsrCopy[0] = adapter->Isr[0]; |
| 1063 | adapter->Isr[0] = 0; |
| 1064 | 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] | 1065 | /* ASSERT(adapter->IsrDpcsPending == 0); */ |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1066 | #if XXXTODO /* RSS Stuff */ |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1067 | /* |
| 1068 | * If RSS is enabled and the ISR specifies SXG_ISR_EVENT, then |
| 1069 | * schedule DPC's based on event queues. |
| 1070 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1071 | if (adapter->RssEnabled && (adapter->IsrCopy[0] & SXG_ISR_EVENT)) { |
| 1072 | for (i = 0; |
| 1073 | i < adapter->RssSystemInfo->ProcessorInfo.RssCpuCount; |
| 1074 | i++) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1075 | struct sxg_event_ring *EventRing = |
| 1076 | &adapter->EventRings[i]; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1077 | struct sxg_event *Event = |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1078 | &EventRing->Ring[adapter->NextEvent[i]]; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1079 | unsigned char Cpu = |
| 1080 | adapter->RssSystemInfo->RssIdToCpu[i]; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1081 | if (Event->Status & EVENT_STATUS_VALID) { |
| 1082 | adapter->IsrDpcsPending++; |
| 1083 | CpuMask |= (1 << Cpu); |
| 1084 | } |
| 1085 | } |
| 1086 | } |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1087 | /* |
| 1088 | * Now, either schedule the CPUs specified by the CpuMask, |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1089 | * or queue default |
| 1090 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1091 | if (CpuMask) { |
| 1092 | *QueueDefault = FALSE; |
| 1093 | } else { |
| 1094 | adapter->IsrDpcsPending = 1; |
| 1095 | *QueueDefault = TRUE; |
| 1096 | } |
| 1097 | *TargetCpus = CpuMask; |
| 1098 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1099 | /* There are no DPCs in Linux, so call the handler now */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1100 | sxg_handle_interrupt(adapter); |
| 1101 | |
| 1102 | return IRQ_HANDLED; |
| 1103 | } |
| 1104 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1105 | int debug_inthandler = 0; |
| 1106 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1107 | static void sxg_handle_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1108 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1109 | /* unsigned char RssId = 0; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1110 | u32 NewIsr; |
| 1111 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1112 | if (++debug_inthandler < 20) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1113 | DBG_ERROR("Enter sxg_handle_interrupt ISR[%x]\n", |
| 1114 | adapter->IsrCopy[0]); |
| 1115 | } |
| 1116 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "HndlIntr", |
| 1117 | adapter, adapter->IsrCopy[0], 0, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1118 | /* For now, RSS is disabled with line based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1119 | ASSERT(adapter->RssEnabled == FALSE); |
| 1120 | ASSERT(adapter->MsiEnabled == FALSE); |
| 1121 | ASSERT(adapter->IsrCopy[0]); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1122 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1123 | /* Always process the event queue. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1124 | sxg_process_event_queue(adapter, |
| 1125 | (adapter->RssEnabled ? /*RssId */ 0 : 0)); |
| 1126 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1127 | #if XXXTODO /* RSS stuff */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1128 | if (--adapter->IsrDpcsPending) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1129 | /* We're done. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1130 | ASSERT(adapter->RssEnabled); |
| 1131 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DPCsPend", |
| 1132 | adapter, 0, 0, 0); |
| 1133 | return; |
| 1134 | } |
| 1135 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1136 | /* Last (or only) DPC processes the ISR and clears the interrupt. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1137 | NewIsr = sxg_process_isr(adapter, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1138 | /* Reenable interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1139 | adapter->IsrCopy[0] = 0; |
| 1140 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "ClearIsr", |
| 1141 | adapter, NewIsr, 0, 0); |
| 1142 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1143 | if (debug_inthandler < 20) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1144 | DBG_ERROR |
| 1145 | ("Exit sxg_handle_interrupt2 after enabling interrupt\n"); |
| 1146 | } |
| 1147 | |
| 1148 | WRITE_REG(adapter->UcodeRegs[0].Isr, NewIsr, TRUE); |
| 1149 | |
| 1150 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XHndlInt", |
| 1151 | adapter, 0, 0, 0); |
| 1152 | } |
| 1153 | |
| 1154 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1155 | * sxg_process_isr - Process an interrupt. Called from the line-based and |
| 1156 | * message based interrupt DPC routines |
| 1157 | * |
| 1158 | * Arguments: |
| 1159 | * adapter - Our adapter structure |
| 1160 | * Queue - The ISR that needs processing |
| 1161 | * |
| 1162 | * Return Value: |
| 1163 | * None |
| 1164 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1165 | static int sxg_process_isr(struct adapter_t *adapter, u32 MessageId) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1166 | { |
| 1167 | u32 Isr = adapter->IsrCopy[MessageId]; |
| 1168 | u32 NewIsr = 0; |
| 1169 | |
| 1170 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "ProcIsr", |
| 1171 | adapter, Isr, 0, 0); |
| 1172 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1173 | DBG_ERROR("%s: Entering with %d ISR value\n", __FUNCTION__, Isr); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1174 | /* Error */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1175 | if (Isr & SXG_ISR_ERR) { |
| 1176 | if (Isr & SXG_ISR_PDQF) { |
| 1177 | adapter->Stats.PdqFull++; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1178 | DBG_ERROR("%s: SXG_ISR_ERR PDQF!!\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1179 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1180 | /* No host buffer */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1181 | if (Isr & SXG_ISR_RMISS) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1182 | /* |
| 1183 | * There is a bunch of code in the SLIC driver which |
| 1184 | * attempts to process more receive events per DPC |
| 1185 | * if we start to fall behind. We'll probablyd |
| 1186 | * need to do something similar here, but hold |
| 1187 | * off for now. I don't want to make the code more |
| 1188 | * complicated than strictly needed. |
| 1189 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1190 | adapter->Stats.RcvNoBuffer++; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 1191 | adapter->stats.rx_missed_errors++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1192 | if (adapter->Stats.RcvNoBuffer < 5) { |
| 1193 | DBG_ERROR("%s: SXG_ISR_ERR RMISS!!\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1194 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1195 | } |
| 1196 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1197 | /* Card crash */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1198 | if (Isr & SXG_ISR_DEAD) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1199 | /* |
| 1200 | * Set aside the crash info and set the adapter state |
| 1201 | * to RESET |
| 1202 | */ |
| 1203 | adapter->CrashCpu = (unsigned char) |
| 1204 | ((Isr & SXG_ISR_CPU) >> SXG_ISR_CPU_SHIFT); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1205 | adapter->CrashLocation = (ushort) (Isr & SXG_ISR_CRASH); |
| 1206 | adapter->Dead = TRUE; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1207 | DBG_ERROR("%s: ISR_DEAD %x, CPU: %d\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1208 | adapter->CrashLocation, adapter->CrashCpu); |
| 1209 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1210 | /* Event ring full */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1211 | if (Isr & SXG_ISR_ERFULL) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1212 | /* |
| 1213 | * Same issue as RMISS, really. This means the |
| 1214 | * host is falling behind the card. Need to increase |
| 1215 | * event ring size, process more events per interrupt, |
| 1216 | * and/or reduce/remove interrupt aggregation. |
| 1217 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1218 | adapter->Stats.EventRingFull++; |
| 1219 | DBG_ERROR("%s: SXG_ISR_ERR EVENT RING FULL!!\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1220 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1221 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1222 | /* Transmit drop - no DRAM buffers or XMT error */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1223 | if (Isr & SXG_ISR_XDROP) { |
| 1224 | adapter->Stats.XmtDrops++; |
| 1225 | adapter->Stats.XmtErrors++; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1226 | DBG_ERROR("%s: SXG_ISR_ERR XDROP!!\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1227 | } |
| 1228 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1229 | /* Slowpath send completions */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1230 | if (Isr & SXG_ISR_SPSEND) { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1231 | sxg_complete_slow_send(adapter, 1); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1232 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1233 | /* Dump */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1234 | if (Isr & SXG_ISR_UPC) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1235 | /* Maybe change when debug is added.. */ |
| 1236 | ASSERT(adapter->DumpCmdRunning); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1237 | adapter->DumpCmdRunning = FALSE; |
| 1238 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1239 | /* Link event */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1240 | if (Isr & SXG_ISR_LINK) { |
| 1241 | sxg_link_event(adapter); |
| 1242 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1243 | /* Debug - breakpoint hit */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1244 | if (Isr & SXG_ISR_BREAK) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1245 | /* |
| 1246 | * At the moment AGDB isn't written to support interactive |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1247 | * debug sessions. When it is, this interrupt will be used to |
| 1248 | * signal AGDB that it has hit a breakpoint. For now, ASSERT. |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1249 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1250 | ASSERT(0); |
| 1251 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1252 | /* Heartbeat response */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1253 | if (Isr & SXG_ISR_PING) { |
| 1254 | adapter->PingOutstanding = FALSE; |
| 1255 | } |
| 1256 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XProcIsr", |
| 1257 | adapter, Isr, NewIsr, 0); |
| 1258 | |
| 1259 | return (NewIsr); |
| 1260 | } |
| 1261 | |
| 1262 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1263 | * sxg_process_event_queue - Process our event queue |
| 1264 | * |
| 1265 | * Arguments: |
| 1266 | * - adapter - Adapter structure |
| 1267 | * - RssId - The event queue requiring processing |
| 1268 | * |
| 1269 | * Return Value: |
| 1270 | * None. |
| 1271 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1272 | 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] | 1273 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1274 | struct sxg_event_ring *EventRing = &adapter->EventRings[RssId]; |
| 1275 | struct sxg_event *Event = &EventRing->Ring[adapter->NextEvent[RssId]]; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1276 | u32 EventsProcessed = 0, Batches = 0; |
| 1277 | u32 num_skbs = 0; |
| 1278 | struct sk_buff *skb; |
| 1279 | #ifdef LINUX_HANDLES_RCV_INDICATION_LISTS |
| 1280 | struct sk_buff *prev_skb = NULL; |
| 1281 | struct sk_buff *IndicationList[SXG_RCV_ARRAYSIZE]; |
| 1282 | u32 Index; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1283 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1284 | #endif |
| 1285 | u32 ReturnStatus = 0; |
| 1286 | |
| 1287 | ASSERT((adapter->State == SXG_STATE_RUNNING) || |
| 1288 | (adapter->State == SXG_STATE_PAUSING) || |
| 1289 | (adapter->State == SXG_STATE_PAUSED) || |
| 1290 | (adapter->State == SXG_STATE_HALTING)); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1291 | /* |
| 1292 | * We may still have unprocessed events on the queue if |
| 1293 | * the card crashed. Don't process them. |
| 1294 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1295 | if (adapter->Dead) { |
| 1296 | return (0); |
| 1297 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1298 | /* |
| 1299 | * In theory there should only be a single processor that |
| 1300 | * accesses this queue, and only at interrupt-DPC time. So/ |
| 1301 | * we shouldn't need a lock for any of this. |
| 1302 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1303 | while (Event->Status & EVENT_STATUS_VALID) { |
| 1304 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "Event", |
| 1305 | Event, Event->Code, Event->Status, |
| 1306 | adapter->NextEvent); |
| 1307 | switch (Event->Code) { |
| 1308 | case EVENT_CODE_BUFFERS: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1309 | /* struct sxg_ring_info Head & Tail == unsigned char */ |
| 1310 | ASSERT(!(Event->CommandIndex & 0xFF00)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1311 | sxg_complete_descriptor_blocks(adapter, |
| 1312 | Event->CommandIndex); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1313 | break; |
| 1314 | case EVENT_CODE_SLOWRCV: |
| 1315 | --adapter->RcvBuffersOnCard; |
| 1316 | if ((skb = sxg_slow_receive(adapter, Event))) { |
| 1317 | u32 rx_bytes; |
| 1318 | #ifdef LINUX_HANDLES_RCV_INDICATION_LISTS |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1319 | /* Add it to our indication list */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1320 | SXG_ADD_RCV_PACKET(adapter, skb, prev_skb, |
| 1321 | IndicationList, num_skbs); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1322 | /* |
| 1323 | * Linux, we just pass up each skb to the |
| 1324 | * protocol above at this point, there is no |
| 1325 | * capability of an indication list. |
| 1326 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1327 | #else |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1328 | /* CHECK skb_pull(skb, INIC_RCVBUF_HEADSIZE); */ |
| 1329 | /* (rcvbuf->length & IRHDDR_FLEN_MSK); */ |
| 1330 | rx_bytes = Event->Length; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1331 | adapter->stats.rx_packets++; |
| 1332 | adapter->stats.rx_bytes += rx_bytes; |
| 1333 | #if SXG_OFFLOAD_IP_CHECKSUM |
| 1334 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 1335 | #endif |
| 1336 | skb->dev = adapter->netdev; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1337 | netif_rx(skb); |
| 1338 | #endif |
| 1339 | } |
| 1340 | break; |
| 1341 | default: |
| 1342 | DBG_ERROR("%s: ERROR Invalid EventCode %d\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1343 | __func__, Event->Code); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1344 | /* ASSERT(0); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1345 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1346 | /* |
| 1347 | * See if we need to restock card receive buffers. |
| 1348 | * There are two things to note here: |
| 1349 | * First - This test is not SMP safe. The |
| 1350 | * adapter->BuffersOnCard field is protected via atomic |
| 1351 | * interlocked calls, but we do not protect it with respect |
| 1352 | * to these tests. The only way to do that is with a lock, |
| 1353 | * and I don't want to grab a lock every time we adjust the |
| 1354 | * BuffersOnCard count. Instead, we allow the buffer |
| 1355 | * replenishment to be off once in a while. The worst that |
| 1356 | * can happen is the card is given on more-or-less descriptor |
| 1357 | * block than the arbitrary value we've chosen. No big deal |
| 1358 | * In short DO NOT ADD A LOCK HERE, OR WHERE RcvBuffersOnCard |
| 1359 | * is adjusted. |
| 1360 | * Second - We expect this test to rarely |
| 1361 | * evaluate to true. We attempt to refill descriptor blocks |
| 1362 | * as they are returned to us (sxg_complete_descriptor_blocks) |
| 1363 | * so The only time this should evaluate to true is when |
| 1364 | * sxg_complete_descriptor_blocks failed to allocate |
| 1365 | * receive buffers. |
| 1366 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1367 | if (adapter->RcvBuffersOnCard < SXG_RCV_DATA_BUFFERS) { |
| 1368 | sxg_stock_rcv_buffers(adapter); |
| 1369 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1370 | /* |
| 1371 | * It's more efficient to just set this to zero. |
| 1372 | * But clearing the top bit saves potential debug info... |
| 1373 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1374 | Event->Status &= ~EVENT_STATUS_VALID; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1375 | /* Advance to the next event */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1376 | SXG_ADVANCE_INDEX(adapter->NextEvent[RssId], EVENT_RING_SIZE); |
| 1377 | Event = &EventRing->Ring[adapter->NextEvent[RssId]]; |
| 1378 | EventsProcessed++; |
| 1379 | if (EventsProcessed == EVENT_RING_BATCH) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1380 | /* Release a batch of events back to the card */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1381 | WRITE_REG(adapter->UcodeRegs[RssId].EventRelease, |
| 1382 | EVENT_RING_BATCH, FALSE); |
| 1383 | EventsProcessed = 0; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1384 | /* |
| 1385 | * If we've processed our batch limit, break out of the |
| 1386 | * loop and return SXG_ISR_EVENT to arrange for us to |
| 1387 | * be called again |
| 1388 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1389 | if (Batches++ == EVENT_BATCH_LIMIT) { |
| 1390 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, |
| 1391 | TRACE_NOISY, "EvtLimit", Batches, |
| 1392 | adapter->NextEvent, 0, 0); |
| 1393 | ReturnStatus = SXG_ISR_EVENT; |
| 1394 | break; |
| 1395 | } |
| 1396 | } |
| 1397 | } |
| 1398 | #ifdef LINUX_HANDLES_RCV_INDICATION_LISTS |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1399 | /* Indicate any received dumb-nic frames */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1400 | SXG_INDICATE_PACKETS(adapter, IndicationList, num_skbs); |
| 1401 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1402 | /* Release events back to the card. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1403 | if (EventsProcessed) { |
| 1404 | WRITE_REG(adapter->UcodeRegs[RssId].EventRelease, |
| 1405 | EventsProcessed, FALSE); |
| 1406 | } |
| 1407 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XPrcEvnt", |
| 1408 | Batches, EventsProcessed, adapter->NextEvent, num_skbs); |
| 1409 | |
| 1410 | return (ReturnStatus); |
| 1411 | } |
| 1412 | |
| 1413 | /* |
| 1414 | * sxg_complete_slow_send - Complete slowpath or dumb-nic sends |
| 1415 | * |
| 1416 | * Arguments - |
| 1417 | * adapter - A pointer to our adapter structure |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1418 | * 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] | 1419 | * Return |
| 1420 | * None |
| 1421 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1422 | 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] | 1423 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1424 | struct sxg_xmt_ring *XmtRing = &adapter->XmtRings[0]; |
| 1425 | struct sxg_ring_info *XmtRingInfo = &adapter->XmtRingZeroInfo; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1426 | u32 *ContextType; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1427 | struct sxg_cmd *XmtCmd; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1428 | unsigned long flags; |
| 1429 | unsigned long sgl_flags; |
| 1430 | unsigned int processed_count = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1431 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1432 | /* |
| 1433 | * NOTE - This lock is dropped and regrabbed in this loop. |
| 1434 | * This means two different processors can both be running/ |
| 1435 | * through this loop. Be *very* careful. |
| 1436 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1437 | if(irq_context) { |
| 1438 | if(!spin_trylock(&adapter->XmtZeroLock)) |
| 1439 | goto lock_busy; |
| 1440 | } |
| 1441 | else |
| 1442 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
| 1443 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1444 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpSnds", |
| 1445 | adapter, XmtRingInfo->Head, XmtRingInfo->Tail, 0); |
| 1446 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1447 | while ((XmtRingInfo->Tail != *adapter->XmtRingZeroIndex) |
| 1448 | && processed_count++ < SXG_COMPLETE_SLOW_SEND_LIMIT) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1449 | /* |
| 1450 | * Locate the current Cmd (ring descriptor entry), and |
| 1451 | * associated SGL, and advance the tail |
| 1452 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1453 | SXG_RETURN_CMD(XmtRing, XmtRingInfo, XmtCmd, ContextType); |
| 1454 | ASSERT(ContextType); |
| 1455 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpSnd", |
| 1456 | XmtRingInfo->Head, XmtRingInfo->Tail, XmtCmd, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1457 | /* Clear the SGL field. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1458 | XmtCmd->Sgl = 0; |
| 1459 | |
| 1460 | switch (*ContextType) { |
| 1461 | case SXG_SGL_DUMB: |
| 1462 | { |
| 1463 | struct sk_buff *skb; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1464 | struct sxg_scatter_gather *SxgSgl = |
| 1465 | (struct sxg_scatter_gather *)ContextType; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1466 | dma64_addr_t FirstSgeAddress; |
| 1467 | u32 FirstSgeLength; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1468 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1469 | /* Dumb-nic send. Command context is the dumb-nic SGL */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1470 | skb = (struct sk_buff *)ContextType; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1471 | skb = SxgSgl->DumbPacket; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1472 | FirstSgeAddress = XmtCmd->Buffer.FirstSgeAddress; |
| 1473 | FirstSgeLength = XmtCmd->Buffer.FirstSgeLength; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1474 | /* Complete the send */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1475 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, |
| 1476 | TRACE_IMPORTANT, "DmSndCmp", skb, 0, |
| 1477 | 0, 0); |
| 1478 | ASSERT(adapter->Stats.XmtQLen); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1479 | adapter->Stats.XmtQLen--;/* within XmtZeroLock */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1480 | adapter->Stats.XmtOk++; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1481 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1482 | * Now drop the lock and complete the send |
| 1483 | * back to Microsoft. We need to drop the lock |
| 1484 | * because Microsoft can come back with a |
| 1485 | * chimney send, which results in a double trip |
| 1486 | * in SxgTcpOuput |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1487 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1488 | if(irq_context) |
| 1489 | spin_unlock(&adapter->XmtZeroLock); |
| 1490 | else |
| 1491 | spin_unlock_irqrestore( |
| 1492 | &adapter->XmtZeroLock, flags); |
| 1493 | |
| 1494 | SxgSgl->DumbPacket = NULL; |
| 1495 | SXG_COMPLETE_DUMB_SEND(adapter, skb, |
| 1496 | FirstSgeAddress, |
| 1497 | FirstSgeLength); |
| 1498 | SXG_FREE_SGL_BUFFER(adapter, SxgSgl, NULL, |
| 1499 | irq_context); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1500 | /* and reacquire.. */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1501 | if(irq_context) { |
| 1502 | if(!spin_trylock(&adapter->XmtZeroLock)) |
| 1503 | goto lock_busy; |
| 1504 | } |
| 1505 | else |
| 1506 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1507 | } |
| 1508 | break; |
| 1509 | default: |
| 1510 | ASSERT(0); |
| 1511 | } |
| 1512 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1513 | if(irq_context) |
| 1514 | spin_unlock(&adapter->XmtZeroLock); |
| 1515 | else |
| 1516 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
| 1517 | lock_busy: |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1518 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpSnd", |
| 1519 | adapter, XmtRingInfo->Head, XmtRingInfo->Tail, 0); |
| 1520 | } |
| 1521 | |
| 1522 | /* |
| 1523 | * sxg_slow_receive |
| 1524 | * |
| 1525 | * Arguments - |
| 1526 | * adapter - A pointer to our adapter structure |
| 1527 | * Event - Receive event |
| 1528 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1529 | * Return - skb |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1530 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1531 | static struct sk_buff *sxg_slow_receive(struct adapter_t *adapter, |
| 1532 | struct sxg_event *Event) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1533 | { |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1534 | u32 BufferSize = adapter->ReceiveBufferSize; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1535 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1536 | struct sk_buff *Packet; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1537 | static int read_counter = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1538 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1539 | RcvDataBufferHdr = (struct sxg_rcv_data_buffer_hdr *) Event->HostHandle; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1540 | if(read_counter++ & 0x100) |
| 1541 | { |
| 1542 | sxg_collect_statistics(adapter); |
| 1543 | read_counter = 0; |
| 1544 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1545 | ASSERT(RcvDataBufferHdr); |
| 1546 | ASSERT(RcvDataBufferHdr->State == SXG_BUFFER_ONCARD); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1547 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "SlowRcv", Event, |
| 1548 | RcvDataBufferHdr, RcvDataBufferHdr->State, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1549 | /*RcvDataBufferHdr->VirtualAddress*/ 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1550 | /* Drop rcv frames in non-running state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1551 | switch (adapter->State) { |
| 1552 | case SXG_STATE_RUNNING: |
| 1553 | break; |
| 1554 | case SXG_STATE_PAUSING: |
| 1555 | case SXG_STATE_PAUSED: |
| 1556 | case SXG_STATE_HALTING: |
| 1557 | goto drop; |
| 1558 | default: |
| 1559 | ASSERT(0); |
| 1560 | goto drop; |
| 1561 | } |
| 1562 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1563 | /* |
| 1564 | * memcpy(SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1565 | * RcvDataBufferHdr->VirtualAddress, Event->Length); |
| 1566 | */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1567 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1568 | /* Change buffer state to UPSTREAM */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1569 | RcvDataBufferHdr->State = SXG_BUFFER_UPSTREAM; |
| 1570 | if (Event->Status & EVENT_STATUS_RCVERR) { |
| 1571 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RcvError", |
| 1572 | Event, Event->Status, Event->HostHandle, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1573 | /* XXXTODO - Remove this print later */ |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1574 | DBG_ERROR("SXG: Receive error %x\n", *(u32 *) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1575 | SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr)); |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1576 | sxg_process_rcv_error(adapter, *(u32 *) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1577 | SXG_RECEIVE_DATA_LOCATION |
| 1578 | (RcvDataBufferHdr)); |
| 1579 | goto drop; |
| 1580 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1581 | #if XXXTODO /* VLAN stuff */ |
| 1582 | /* If there's a VLAN tag, extract it and validate it */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1583 | if (((struct ether_header *) |
| 1584 | (SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr)))->EtherType |
| 1585 | == ETHERTYPE_VLAN) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1586 | if (SxgExtractVlanHeader(adapter, RcvDataBufferHdr, Event) != |
| 1587 | STATUS_SUCCESS) { |
| 1588 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, |
| 1589 | "BadVlan", Event, |
| 1590 | SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1591 | Event->Length, 0); |
| 1592 | goto drop; |
| 1593 | } |
| 1594 | } |
| 1595 | #endif |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1596 | /* 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] | 1597 | |
| 1598 | /* |
| 1599 | * ASK if (!sxg_mac_filter(adapter, |
| 1600 | * SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1601 | * Event->Length)) { |
| 1602 | * SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "RcvFiltr", |
| 1603 | * Event, SXG_RECEIVE_DATA_LOCATION(RcvDataBufferHdr), |
| 1604 | * Event->Length, 0); |
| 1605 | * goto drop; |
| 1606 | * } |
| 1607 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1608 | |
| 1609 | Packet = RcvDataBufferHdr->SxgDumbRcvPacket; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1610 | SXG_ADJUST_RCV_PACKET(Packet, RcvDataBufferHdr, Event); |
| 1611 | Packet->protocol = eth_type_trans(Packet, adapter->netdev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1612 | |
| 1613 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "DumbRcv", |
| 1614 | RcvDataBufferHdr, Packet, Event->Length, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1615 | /* Lastly adjust the receive packet length. */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1616 | RcvDataBufferHdr->SxgDumbRcvPacket = NULL; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1617 | RcvDataBufferHdr->PhysicalAddress = NULL; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1618 | SXG_ALLOCATE_RCV_PACKET(adapter, RcvDataBufferHdr, BufferSize); |
| 1619 | if (RcvDataBufferHdr->skb) |
| 1620 | { |
| 1621 | spin_lock(&adapter->RcvQLock); |
| 1622 | SXG_FREE_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1623 | // adapter->RcvBuffersOnCard ++; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1624 | spin_unlock(&adapter->RcvQLock); |
| 1625 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1626 | return (Packet); |
| 1627 | |
| 1628 | drop: |
| 1629 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DropRcv", |
| 1630 | RcvDataBufferHdr, Event->Length, 0, 0); |
| 1631 | adapter->Stats.RcvDiscards++; |
| 1632 | spin_lock(&adapter->RcvQLock); |
| 1633 | SXG_FREE_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
| 1634 | spin_unlock(&adapter->RcvQLock); |
| 1635 | return (NULL); |
| 1636 | } |
| 1637 | |
| 1638 | /* |
| 1639 | * sxg_process_rcv_error - process receive error and update |
| 1640 | * stats |
| 1641 | * |
| 1642 | * Arguments: |
| 1643 | * adapter - Adapter structure |
| 1644 | * ErrorStatus - 4-byte receive error status |
| 1645 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1646 | * Return Value : None |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1647 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1648 | 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] | 1649 | { |
| 1650 | u32 Error; |
| 1651 | |
| 1652 | adapter->Stats.RcvErrors++; |
| 1653 | |
| 1654 | if (ErrorStatus & SXG_RCV_STATUS_TRANSPORT_ERROR) { |
| 1655 | Error = ErrorStatus & SXG_RCV_STATUS_TRANSPORT_MASK; |
| 1656 | switch (Error) { |
| 1657 | case SXG_RCV_STATUS_TRANSPORT_CSUM: |
| 1658 | adapter->Stats.TransportCsum++; |
| 1659 | break; |
| 1660 | case SXG_RCV_STATUS_TRANSPORT_UFLOW: |
| 1661 | adapter->Stats.TransportUflow++; |
| 1662 | break; |
| 1663 | case SXG_RCV_STATUS_TRANSPORT_HDRLEN: |
| 1664 | adapter->Stats.TransportHdrLen++; |
| 1665 | break; |
| 1666 | } |
| 1667 | } |
| 1668 | if (ErrorStatus & SXG_RCV_STATUS_NETWORK_ERROR) { |
| 1669 | Error = ErrorStatus & SXG_RCV_STATUS_NETWORK_MASK; |
| 1670 | switch (Error) { |
| 1671 | case SXG_RCV_STATUS_NETWORK_CSUM: |
| 1672 | adapter->Stats.NetworkCsum++; |
| 1673 | break; |
| 1674 | case SXG_RCV_STATUS_NETWORK_UFLOW: |
| 1675 | adapter->Stats.NetworkUflow++; |
| 1676 | break; |
| 1677 | case SXG_RCV_STATUS_NETWORK_HDRLEN: |
| 1678 | adapter->Stats.NetworkHdrLen++; |
| 1679 | break; |
| 1680 | } |
| 1681 | } |
| 1682 | if (ErrorStatus & SXG_RCV_STATUS_PARITY) { |
| 1683 | adapter->Stats.Parity++; |
| 1684 | } |
| 1685 | if (ErrorStatus & SXG_RCV_STATUS_LINK_ERROR) { |
| 1686 | Error = ErrorStatus & SXG_RCV_STATUS_LINK_MASK; |
| 1687 | switch (Error) { |
| 1688 | case SXG_RCV_STATUS_LINK_PARITY: |
| 1689 | adapter->Stats.LinkParity++; |
| 1690 | break; |
| 1691 | case SXG_RCV_STATUS_LINK_EARLY: |
| 1692 | adapter->Stats.LinkEarly++; |
| 1693 | break; |
| 1694 | case SXG_RCV_STATUS_LINK_BUFOFLOW: |
| 1695 | adapter->Stats.LinkBufOflow++; |
| 1696 | break; |
| 1697 | case SXG_RCV_STATUS_LINK_CODE: |
| 1698 | adapter->Stats.LinkCode++; |
| 1699 | break; |
| 1700 | case SXG_RCV_STATUS_LINK_DRIBBLE: |
| 1701 | adapter->Stats.LinkDribble++; |
| 1702 | break; |
| 1703 | case SXG_RCV_STATUS_LINK_CRC: |
| 1704 | adapter->Stats.LinkCrc++; |
| 1705 | break; |
| 1706 | case SXG_RCV_STATUS_LINK_OFLOW: |
| 1707 | adapter->Stats.LinkOflow++; |
| 1708 | break; |
| 1709 | case SXG_RCV_STATUS_LINK_UFLOW: |
| 1710 | adapter->Stats.LinkUflow++; |
| 1711 | break; |
| 1712 | } |
| 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | /* |
| 1717 | * sxg_mac_filter |
| 1718 | * |
| 1719 | * Arguments: |
| 1720 | * adapter - Adapter structure |
| 1721 | * pether - Ethernet header |
| 1722 | * length - Frame length |
| 1723 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1724 | * Return Value : TRUE if the frame is to be allowed |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1725 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 1726 | static bool sxg_mac_filter(struct adapter_t *adapter, |
| 1727 | struct ether_header *EtherHdr, ushort length) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1728 | { |
| 1729 | bool EqualAddr; |
| 1730 | |
| 1731 | if (SXG_MULTICAST_PACKET(EtherHdr)) { |
| 1732 | if (SXG_BROADCAST_PACKET(EtherHdr)) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1733 | /* broadcast */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1734 | if (adapter->MacFilter & MAC_BCAST) { |
| 1735 | adapter->Stats.DumbRcvBcastPkts++; |
| 1736 | adapter->Stats.DumbRcvBcastBytes += length; |
| 1737 | adapter->Stats.DumbRcvPkts++; |
| 1738 | adapter->Stats.DumbRcvBytes += length; |
| 1739 | return (TRUE); |
| 1740 | } |
| 1741 | } else { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1742 | /* multicast */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1743 | if (adapter->MacFilter & MAC_ALLMCAST) { |
| 1744 | adapter->Stats.DumbRcvMcastPkts++; |
| 1745 | adapter->Stats.DumbRcvMcastBytes += length; |
| 1746 | adapter->Stats.DumbRcvPkts++; |
| 1747 | adapter->Stats.DumbRcvBytes += length; |
| 1748 | return (TRUE); |
| 1749 | } |
| 1750 | if (adapter->MacFilter & MAC_MCAST) { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1751 | struct sxg_multicast_address *MulticastAddrs = |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1752 | adapter->MulticastAddrs; |
| 1753 | while (MulticastAddrs) { |
| 1754 | ETHER_EQ_ADDR(MulticastAddrs->Address, |
| 1755 | EtherHdr->ether_dhost, |
| 1756 | EqualAddr); |
| 1757 | if (EqualAddr) { |
| 1758 | adapter->Stats. |
| 1759 | DumbRcvMcastPkts++; |
| 1760 | adapter->Stats. |
| 1761 | DumbRcvMcastBytes += length; |
| 1762 | adapter->Stats.DumbRcvPkts++; |
| 1763 | adapter->Stats.DumbRcvBytes += |
| 1764 | length; |
| 1765 | return (TRUE); |
| 1766 | } |
| 1767 | MulticastAddrs = MulticastAddrs->Next; |
| 1768 | } |
| 1769 | } |
| 1770 | } |
| 1771 | } else if (adapter->MacFilter & MAC_DIRECTED) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1772 | /* |
| 1773 | * Not broadcast or multicast. Must be directed at us or |
| 1774 | * the card is in promiscuous mode. Either way, consider it |
| 1775 | * ours if MAC_DIRECTED is set |
| 1776 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1777 | adapter->Stats.DumbRcvUcastPkts++; |
| 1778 | adapter->Stats.DumbRcvUcastBytes += length; |
| 1779 | adapter->Stats.DumbRcvPkts++; |
| 1780 | adapter->Stats.DumbRcvBytes += length; |
| 1781 | return (TRUE); |
| 1782 | } |
| 1783 | if (adapter->MacFilter & MAC_PROMISC) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1784 | /* Whatever it is, keep it. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1785 | adapter->Stats.DumbRcvPkts++; |
| 1786 | adapter->Stats.DumbRcvBytes += length; |
| 1787 | return (TRUE); |
| 1788 | } |
| 1789 | adapter->Stats.RcvDiscards++; |
| 1790 | return (FALSE); |
| 1791 | } |
| 1792 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1793 | static int sxg_register_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1794 | { |
| 1795 | if (!adapter->intrregistered) { |
| 1796 | int retval; |
| 1797 | |
| 1798 | DBG_ERROR |
| 1799 | ("sxg: %s AllocAdaptRsrcs adapter[%p] dev->irq[%x] %x\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1800 | __func__, adapter, adapter->netdev->irq, NR_IRQS); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1801 | |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 1802 | spin_unlock_irqrestore(&sxg_global.driver_lock, |
| 1803 | sxg_global.flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1804 | |
| 1805 | retval = request_irq(adapter->netdev->irq, |
| 1806 | &sxg_isr, |
| 1807 | IRQF_SHARED, |
| 1808 | adapter->netdev->name, adapter->netdev); |
| 1809 | |
| 1810 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
| 1811 | |
| 1812 | if (retval) { |
| 1813 | DBG_ERROR("sxg: request_irq (%s) FAILED [%x]\n", |
| 1814 | adapter->netdev->name, retval); |
| 1815 | return (retval); |
| 1816 | } |
| 1817 | adapter->intrregistered = 1; |
| 1818 | adapter->IntRegistered = TRUE; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1819 | /* Disable RSS with line-based interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1820 | adapter->MsiEnabled = FALSE; |
| 1821 | adapter->RssEnabled = FALSE; |
| 1822 | DBG_ERROR("sxg: %s AllocAdaptRsrcs adapter[%p] dev->irq[%x]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1823 | __func__, adapter, adapter->netdev->irq); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1824 | } |
| 1825 | return (STATUS_SUCCESS); |
| 1826 | } |
| 1827 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1828 | static void sxg_deregister_interrupt(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1829 | { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1830 | DBG_ERROR("sxg: %s ENTER adapter[%p]\n", __func__, adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1831 | #if XXXTODO |
| 1832 | slic_init_cleanup(adapter); |
| 1833 | #endif |
| 1834 | memset(&adapter->stats, 0, sizeof(struct net_device_stats)); |
| 1835 | adapter->error_interrupts = 0; |
| 1836 | adapter->rcv_interrupts = 0; |
| 1837 | adapter->xmit_interrupts = 0; |
| 1838 | adapter->linkevent_interrupts = 0; |
| 1839 | adapter->upr_interrupts = 0; |
| 1840 | adapter->num_isrs = 0; |
| 1841 | adapter->xmit_completes = 0; |
| 1842 | adapter->rcv_broadcasts = 0; |
| 1843 | adapter->rcv_multicasts = 0; |
| 1844 | adapter->rcv_unicasts = 0; |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1845 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1846 | } |
| 1847 | |
| 1848 | /* |
| 1849 | * sxg_if_init |
| 1850 | * |
| 1851 | * Perform initialization of our slic interface. |
| 1852 | * |
| 1853 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1854 | static int sxg_if_init(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1855 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1856 | struct net_device *dev = adapter->netdev; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1857 | int status = 0; |
| 1858 | |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1859 | DBG_ERROR("sxg: %s (%s) ENTER states[%d:%d] flags[%x]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1860 | __func__, adapter->netdev->name, |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 1861 | adapter->state, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1862 | adapter->linkstate, dev->flags); |
| 1863 | |
| 1864 | /* adapter should be down at this point */ |
| 1865 | if (adapter->state != ADAPT_DOWN) { |
| 1866 | DBG_ERROR("sxg_if_init adapter->state != ADAPT_DOWN\n"); |
| 1867 | return (-EIO); |
| 1868 | } |
| 1869 | ASSERT(adapter->linkstate == LINK_DOWN); |
| 1870 | |
| 1871 | adapter->devflags_prev = dev->flags; |
| 1872 | adapter->macopts = MAC_DIRECTED; |
| 1873 | if (dev->flags) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1874 | DBG_ERROR("sxg: %s (%s) Set MAC options: ", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1875 | adapter->netdev->name); |
| 1876 | if (dev->flags & IFF_BROADCAST) { |
| 1877 | adapter->macopts |= MAC_BCAST; |
| 1878 | DBG_ERROR("BCAST "); |
| 1879 | } |
| 1880 | if (dev->flags & IFF_PROMISC) { |
| 1881 | adapter->macopts |= MAC_PROMISC; |
| 1882 | DBG_ERROR("PROMISC "); |
| 1883 | } |
| 1884 | if (dev->flags & IFF_ALLMULTI) { |
| 1885 | adapter->macopts |= MAC_ALLMCAST; |
| 1886 | DBG_ERROR("ALL_MCAST "); |
| 1887 | } |
| 1888 | if (dev->flags & IFF_MULTICAST) { |
| 1889 | adapter->macopts |= MAC_MCAST; |
| 1890 | DBG_ERROR("MCAST "); |
| 1891 | } |
| 1892 | DBG_ERROR("\n"); |
| 1893 | } |
| 1894 | status = sxg_register_interrupt(adapter); |
| 1895 | if (status != STATUS_SUCCESS) { |
| 1896 | DBG_ERROR("sxg_if_init: sxg_register_interrupt FAILED %x\n", |
| 1897 | status); |
| 1898 | sxg_deregister_interrupt(adapter); |
| 1899 | return (status); |
| 1900 | } |
| 1901 | |
| 1902 | adapter->state = ADAPT_UP; |
| 1903 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 1904 | /* clear any pending events, then enable interrupts */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1905 | DBG_ERROR("sxg: %s ENABLE interrupts(slic)\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1906 | |
| 1907 | return (STATUS_SUCCESS); |
| 1908 | } |
| 1909 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1910 | static int sxg_entry_open(struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1911 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1912 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1913 | int status; |
| 1914 | |
| 1915 | ASSERT(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1916 | DBG_ERROR("sxg: %s adapter->activated[%d]\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1917 | adapter->activated); |
| 1918 | DBG_ERROR |
| 1919 | ("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] | 1920 | __func__, adapter->netdev->name, jiffies, smp_processor_id(), |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1921 | adapter->netdev, adapter, adapter->port); |
| 1922 | |
| 1923 | netif_stop_queue(adapter->netdev); |
| 1924 | |
| 1925 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
| 1926 | if (!adapter->activated) { |
| 1927 | sxg_global.num_sxg_ports_active++; |
| 1928 | adapter->activated = 1; |
| 1929 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1930 | /* Initialize the adapter */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1931 | DBG_ERROR("sxg: %s ENTER sxg_initialize_adapter\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1932 | status = sxg_initialize_adapter(adapter); |
| 1933 | DBG_ERROR("sxg: %s EXIT sxg_initialize_adapter status[%x]\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1934 | __func__, status); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1935 | |
| 1936 | if (status == STATUS_SUCCESS) { |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1937 | DBG_ERROR("sxg: %s ENTER sxg_if_init\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1938 | status = sxg_if_init(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1939 | 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] | 1940 | status); |
| 1941 | } |
| 1942 | |
| 1943 | if (status != STATUS_SUCCESS) { |
| 1944 | if (adapter->activated) { |
| 1945 | sxg_global.num_sxg_ports_active--; |
| 1946 | adapter->activated = 0; |
| 1947 | } |
| 1948 | spin_unlock_irqrestore(&sxg_global.driver_lock, |
| 1949 | sxg_global.flags); |
| 1950 | return (status); |
| 1951 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1952 | DBG_ERROR("sxg: %s ENABLE ALL INTERRUPTS\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1953 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 1954 | /* Enable interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1955 | SXG_ENABLE_ALL_INTERRUPTS(adapter); |
| 1956 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1957 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1958 | |
| 1959 | spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags); |
| 1960 | return STATUS_SUCCESS; |
| 1961 | } |
| 1962 | |
| 1963 | static void __devexit sxg_entry_remove(struct pci_dev *pcidev) |
| 1964 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 1965 | struct net_device *dev = pci_get_drvdata(pcidev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1966 | u32 mmio_start = 0; |
| 1967 | unsigned int mmio_len = 0; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 1968 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 1969 | |
| 1970 | flush_scheduled_work(); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1971 | |
| 1972 | /* Deallocate Resources */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 1973 | unregister_netdev(dev); |
| 1974 | sxg_free_resources(adapter); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1975 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1976 | ASSERT(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1977 | DBG_ERROR("sxg: %s ENTER dev[%p] adapter[%p]\n", __func__, dev, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1978 | adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1979 | |
| 1980 | mmio_start = pci_resource_start(pcidev, 0); |
| 1981 | mmio_len = pci_resource_len(pcidev, 0); |
| 1982 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1983 | DBG_ERROR("sxg: %s rel_region(0) start[%x] len[%x]\n", __func__, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1984 | mmio_start, mmio_len); |
| 1985 | release_mem_region(mmio_start, mmio_len); |
| 1986 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1987 | mmio_start = pci_resource_start(pcidev, 2); |
| 1988 | mmio_len = pci_resource_len(pcidev, 2); |
| 1989 | |
| 1990 | DBG_ERROR("sxg: %s rel_region(2) start[%x] len[%x]\n", __FUNCTION__, |
| 1991 | mmio_start, mmio_len); |
| 1992 | release_mem_region(mmio_start, mmio_len); |
| 1993 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 1994 | pci_disable_device(pcidev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1995 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1996 | DBG_ERROR("sxg: %s deallocate device\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1997 | kfree(dev); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 1998 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 1999 | } |
| 2000 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2001 | static int sxg_entry_halt(struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2002 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2003 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2004 | |
| 2005 | spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2006 | DBG_ERROR("sxg: %s (%s) ENTER\n", __func__, dev->name); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2007 | |
| 2008 | netif_stop_queue(adapter->netdev); |
| 2009 | adapter->state = ADAPT_DOWN; |
| 2010 | adapter->linkstate = LINK_DOWN; |
| 2011 | adapter->devflags_prev = 0; |
| 2012 | 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] | 2013 | __func__, dev->name, adapter, adapter->state); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2014 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2015 | DBG_ERROR("sxg: %s (%s) EXIT\n", __func__, dev->name); |
| 2016 | DBG_ERROR("sxg: %s EXIT\n", __func__); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2017 | |
| 2018 | /* Disable interrupts */ |
| 2019 | SXG_DISABLE_ALL_INTERRUPTS(adapter); |
| 2020 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2021 | spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2022 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2023 | sxg_deregister_interrupt(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2024 | return (STATUS_SUCCESS); |
| 2025 | } |
| 2026 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2027 | 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] | 2028 | { |
| 2029 | ASSERT(rq); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2030 | /* 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] | 2031 | switch (cmd) { |
| 2032 | case SIOCSLICSETINTAGG: |
| 2033 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2034 | /* struct adapter_t *adapter = (struct adapter_t *) |
| 2035 | * netdev_priv(dev); |
| 2036 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2037 | u32 data[7]; |
| 2038 | u32 intagg; |
| 2039 | |
| 2040 | if (copy_from_user(data, rq->ifr_data, 28)) { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2041 | DBG_ERROR("copy_from_user FAILED getting \ |
| 2042 | initial params\n"); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2043 | return -EFAULT; |
| 2044 | } |
| 2045 | intagg = data[0]; |
| 2046 | printk(KERN_EMERG |
| 2047 | "%s: set interrupt aggregation to %d\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2048 | __func__, intagg); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2049 | return 0; |
| 2050 | } |
| 2051 | |
| 2052 | default: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2053 | /* DBG_ERROR("sxg: %s UNSUPPORTED[%x]\n", __func__, cmd); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2054 | return -EOPNOTSUPP; |
| 2055 | } |
| 2056 | return 0; |
| 2057 | } |
| 2058 | |
| 2059 | #define NORMAL_ETHFRAME 0 |
| 2060 | |
| 2061 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2062 | * sxg_send_packets - Send a skb packet |
| 2063 | * |
| 2064 | * Arguments: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2065 | * skb - The packet to send |
| 2066 | * dev - Our linux net device that refs our adapter |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2067 | * |
| 2068 | * Return: |
| 2069 | * 0 regardless of outcome XXXTODO refer to e1000 driver |
| 2070 | */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2071 | 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] | 2072 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2073 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2074 | u32 status = STATUS_SUCCESS; |
| 2075 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2076 | /* |
| 2077 | * DBG_ERROR("sxg: %s ENTER sxg_send_packets skb[%p]\n", __FUNCTION__, |
| 2078 | * skb); |
| 2079 | */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2080 | printk("ASK:sxg_send_packets: skb[%p]\n", skb); |
| 2081 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2082 | /* Check the adapter state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2083 | switch (adapter->State) { |
| 2084 | case SXG_STATE_INITIALIZING: |
| 2085 | case SXG_STATE_HALTED: |
| 2086 | case SXG_STATE_SHUTDOWN: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2087 | ASSERT(0); /* unexpected */ |
| 2088 | /* fall through */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2089 | case SXG_STATE_RESETTING: |
| 2090 | case SXG_STATE_SLEEP: |
| 2091 | case SXG_STATE_BOOTDIAG: |
| 2092 | case SXG_STATE_DIAG: |
| 2093 | case SXG_STATE_HALTING: |
| 2094 | status = STATUS_FAILURE; |
| 2095 | break; |
| 2096 | case SXG_STATE_RUNNING: |
| 2097 | if (adapter->LinkState != SXG_LINK_UP) { |
| 2098 | status = STATUS_FAILURE; |
| 2099 | } |
| 2100 | break; |
| 2101 | default: |
| 2102 | ASSERT(0); |
| 2103 | status = STATUS_FAILURE; |
| 2104 | } |
| 2105 | if (status != STATUS_SUCCESS) { |
| 2106 | goto xmit_fail; |
| 2107 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2108 | /* send a packet */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2109 | status = sxg_transmit_packet(adapter, skb); |
| 2110 | if (status == STATUS_SUCCESS) { |
| 2111 | goto xmit_done; |
| 2112 | } |
| 2113 | |
| 2114 | xmit_fail: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2115 | /* reject & complete all the packets if they cant be sent */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2116 | if (status != STATUS_SUCCESS) { |
| 2117 | #if XXXTODO |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2118 | /* sxg_send_packets_fail(adapter, skb, status); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2119 | #else |
| 2120 | SXG_DROP_DUMB_SEND(adapter, skb); |
| 2121 | adapter->stats.tx_dropped++; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2122 | return NETDEV_TX_BUSY; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2123 | #endif |
| 2124 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2125 | 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] | 2126 | status); |
| 2127 | |
| 2128 | xmit_done: |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2129 | return NETDEV_TX_OK; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2130 | } |
| 2131 | |
| 2132 | /* |
| 2133 | * sxg_transmit_packet |
| 2134 | * |
| 2135 | * This function transmits a single packet. |
| 2136 | * |
| 2137 | * Arguments - |
| 2138 | * adapter - Pointer to our adapter structure |
| 2139 | * skb - The packet to be sent |
| 2140 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2141 | * Return - STATUS of send |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2142 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2143 | 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] | 2144 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2145 | struct sxg_x64_sgl *pSgl; |
| 2146 | struct sxg_scatter_gather *SxgSgl; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2147 | unsigned long sgl_flags; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2148 | /* void *SglBuffer; */ |
| 2149 | /* u32 SglBufferLength; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2150 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2151 | /* |
| 2152 | * The vast majority of work is done in the shared |
| 2153 | * sxg_dumb_sgl routine. |
| 2154 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2155 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbSend", |
| 2156 | adapter, skb, 0, 0); |
| 2157 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2158 | /* Allocate a SGL buffer */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2159 | SXG_GET_SGL_BUFFER(adapter, SxgSgl, 0); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2160 | if (!SxgSgl) { |
| 2161 | adapter->Stats.NoSglBuf++; |
| 2162 | adapter->Stats.XmtErrors++; |
| 2163 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "SndPktF1", |
| 2164 | adapter, skb, 0, 0); |
| 2165 | return (STATUS_RESOURCES); |
| 2166 | } |
| 2167 | ASSERT(SxgSgl->adapter == adapter); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 2168 | /*SglBuffer = SXG_SGL_BUFFER(SxgSgl); |
| 2169 | SglBufferLength = SXG_SGL_BUF_SIZE; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2170 | SxgSgl->VlanTag.VlanTci = 0; |
| 2171 | SxgSgl->VlanTag.VlanTpid = 0; |
| 2172 | SxgSgl->Type = SXG_SGL_DUMB; |
| 2173 | SxgSgl->DumbPacket = skb; |
| 2174 | pSgl = NULL; |
| 2175 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2176 | /* Call the common sxg_dumb_sgl routine to complete the send. */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2177 | return (sxg_dumb_sgl(pSgl, SxgSgl)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2178 | } |
| 2179 | |
| 2180 | /* |
| 2181 | * sxg_dumb_sgl |
| 2182 | * |
| 2183 | * Arguments: |
| 2184 | * pSgl - |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2185 | * SxgSgl - struct sxg_scatter_gather |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2186 | * |
| 2187 | * Return Value: |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2188 | * Status of send operation. |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2189 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2190 | static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2191 | struct sxg_scatter_gather *SxgSgl) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2192 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2193 | struct adapter_t *adapter = SxgSgl->adapter; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2194 | struct sk_buff *skb = SxgSgl->DumbPacket; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2195 | /* For now, all dumb-nic sends go on RSS queue zero */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2196 | struct sxg_xmt_ring *XmtRing = &adapter->XmtRings[0]; |
| 2197 | struct sxg_ring_info *XmtRingInfo = &adapter->XmtRingZeroInfo; |
| 2198 | struct sxg_cmd *XmtCmd = NULL; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2199 | /* u32 Index = 0; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2200 | u32 DataLength = skb->len; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2201 | /* unsigned int BufLen; */ |
| 2202 | /* u32 SglOffset; */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2203 | u64 phys_addr; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2204 | unsigned long flags; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2205 | |
| 2206 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbSgl", |
| 2207 | pSgl, SxgSgl, 0, 0); |
| 2208 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2209 | /* Set aside a pointer to the sgl */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2210 | SxgSgl->pSgl = pSgl; |
| 2211 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2212 | /* Sanity check that our SGL format is as we expect. */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2213 | ASSERT(sizeof(struct sxg_x64_sge) == sizeof(struct sxg_x64_sge)); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2214 | /* Shouldn't be a vlan tag on this frame */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2215 | ASSERT(SxgSgl->VlanTag.VlanTci == 0); |
| 2216 | ASSERT(SxgSgl->VlanTag.VlanTpid == 0); |
| 2217 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2218 | /* |
| 2219 | * From here below we work with the SGL placed in our |
| 2220 | * buffer. |
| 2221 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2222 | |
| 2223 | SxgSgl->Sgl.NumberOfElements = 1; |
| 2224 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2225 | /* Grab the spinlock and acquire a command */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2226 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2227 | SXG_GET_CMD(XmtRing, XmtRingInfo, XmtCmd, SxgSgl); |
| 2228 | if (XmtCmd == NULL) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2229 | /* |
| 2230 | * Call sxg_complete_slow_send to see if we can |
| 2231 | * free up any XmtRingZero entries and then try again |
| 2232 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2233 | |
| 2234 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
| 2235 | sxg_complete_slow_send(adapter, 0); |
| 2236 | spin_lock_irqsave(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2237 | SXG_GET_CMD(XmtRing, XmtRingInfo, XmtCmd, SxgSgl); |
| 2238 | if (XmtCmd == NULL) { |
| 2239 | adapter->Stats.XmtZeroFull++; |
| 2240 | goto abortcmd; |
| 2241 | } |
| 2242 | } |
| 2243 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbCmd", |
| 2244 | XmtCmd, XmtRingInfo->Head, XmtRingInfo->Tail, 0); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2245 | /* Update stats */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2246 | adapter->Stats.DumbXmtPkts++; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 2247 | adapter->stats.tx_packets++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2248 | adapter->Stats.DumbXmtBytes += DataLength; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 2249 | adapter->stats.tx_bytes += DataLength; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2250 | #if XXXTODO /* Stats stuff */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2251 | if (SXG_MULTICAST_PACKET(EtherHdr)) { |
| 2252 | if (SXG_BROADCAST_PACKET(EtherHdr)) { |
| 2253 | adapter->Stats.DumbXmtBcastPkts++; |
| 2254 | adapter->Stats.DumbXmtBcastBytes += DataLength; |
| 2255 | } else { |
| 2256 | adapter->Stats.DumbXmtMcastPkts++; |
| 2257 | adapter->Stats.DumbXmtMcastBytes += DataLength; |
| 2258 | } |
| 2259 | } else { |
| 2260 | adapter->Stats.DumbXmtUcastPkts++; |
| 2261 | adapter->Stats.DumbXmtUcastBytes += DataLength; |
| 2262 | } |
| 2263 | #endif |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2264 | /* |
| 2265 | * Fill in the command |
| 2266 | * Copy out the first SGE to the command and adjust for offset |
| 2267 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2268 | phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 2269 | PCI_DMA_TODEVICE); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2270 | memset(XmtCmd, '\0', sizeof(*XmtCmd)); |
| 2271 | XmtCmd->Buffer.FirstSgeAddress = phys_addr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2272 | XmtCmd->Buffer.FirstSgeLength = DataLength; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2273 | XmtCmd->Buffer.SgeOffset = 0; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2274 | XmtCmd->Buffer.TotalLength = DataLength; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2275 | XmtCmd->SgEntries = 1; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2276 | XmtCmd->Flags = 0; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2277 | /* |
| 2278 | * Advance transmit cmd descripter by 1. |
| 2279 | * NOTE - See comments in SxgTcpOutput where we write |
| 2280 | * to the XmtCmd register regarding CPU ID values and/or |
| 2281 | * multiple commands. |
| 2282 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2283 | WRITE_REG(adapter->UcodeRegs[0].XmtCmd, 1, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2284 | adapter->Stats.XmtQLen++; /* Stats within lock */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2285 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2286 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDumSgl2", |
| 2287 | XmtCmd, pSgl, SxgSgl, 0); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2288 | return STATUS_SUCCESS; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2289 | |
| 2290 | abortcmd: |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2291 | /* |
| 2292 | * NOTE - Only jump to this label AFTER grabbing the |
| 2293 | * XmtZeroLock, and DO NOT DROP IT between the |
| 2294 | * command allocation and the following abort. |
| 2295 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2296 | if (XmtCmd) { |
| 2297 | SXG_ABORT_CMD(XmtRingInfo); |
| 2298 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2299 | spin_unlock_irqrestore(&adapter->XmtZeroLock, flags); |
| 2300 | return STATUS_FAILURE; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2301 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2302 | /* |
| 2303 | * failsgl: |
| 2304 | * Jump to this label if failure occurs before the |
| 2305 | * XmtZeroLock is grabbed |
| 2306 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2307 | adapter->Stats.XmtErrors++; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 2308 | adapter->stats.tx_errors++; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2309 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "DumSGFal", |
| 2310 | pSgl, SxgSgl, XmtRingInfo->Head, XmtRingInfo->Tail); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2311 | /* SxgSgl->DumbPacket is the skb */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 2312 | // SXG_COMPLETE_DUMB_SEND(adapter, SxgSgl->DumbPacket); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2313 | } |
| 2314 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2315 | /* |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2316 | * Link management functions |
| 2317 | * |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2318 | * sxg_initialize_link - Initialize the link stuff |
| 2319 | * |
| 2320 | * Arguments - |
| 2321 | * adapter - A pointer to our adapter structure |
| 2322 | * |
| 2323 | * Return |
| 2324 | * status |
| 2325 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2326 | static int sxg_initialize_link(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2327 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2328 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2329 | u32 Value; |
| 2330 | u32 ConfigData; |
| 2331 | u32 MaxFrame; |
| 2332 | int status; |
| 2333 | |
| 2334 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "InitLink", |
| 2335 | adapter, 0, 0, 0); |
| 2336 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2337 | /* Reset PHY and XGXS module */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2338 | WRITE_REG(HwRegs->LinkStatus, LS_SERDES_POWER_DOWN, TRUE); |
| 2339 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2340 | /* Reset transmit configuration register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2341 | WRITE_REG(HwRegs->XmtConfig, XMT_CONFIG_RESET, TRUE); |
| 2342 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2343 | /* Reset receive configuration register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2344 | WRITE_REG(HwRegs->RcvConfig, RCV_CONFIG_RESET, TRUE); |
| 2345 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2346 | /* Reset all MAC modules */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2347 | WRITE_REG(HwRegs->MacConfig0, AXGMAC_CFG0_SUB_RESET, TRUE); |
| 2348 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2349 | /* |
| 2350 | * Link address 0 |
| 2351 | * XXXTODO - This assumes the MAC address (0a:0b:0c:0d:0e:0f) |
| 2352 | * is stored with the first nibble (0a) in the byte 0 |
| 2353 | * of the Mac address. Possibly reverse? |
| 2354 | */ |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2355 | Value = *(u32 *) adapter->macaddr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2356 | WRITE_REG(HwRegs->LinkAddress0Low, Value, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2357 | /* also write the MAC address to the MAC. Endian is reversed. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2358 | WRITE_REG(HwRegs->MacAddressLow, ntohl(Value), TRUE); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2359 | Value = (*(u16 *) & adapter->macaddr[4] & 0x0000FFFF); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2360 | WRITE_REG(HwRegs->LinkAddress0High, Value | LINK_ADDRESS_ENABLE, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2361 | /* 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] | 2362 | Value = ntohl(Value); |
| 2363 | WRITE_REG(HwRegs->MacAddressHigh, Value, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2364 | /* Link address 1 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2365 | WRITE_REG(HwRegs->LinkAddress1Low, 0, TRUE); |
| 2366 | WRITE_REG(HwRegs->LinkAddress1High, 0, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2367 | /* Link address 2 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2368 | WRITE_REG(HwRegs->LinkAddress2Low, 0, TRUE); |
| 2369 | WRITE_REG(HwRegs->LinkAddress2High, 0, TRUE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2370 | /* Link address 3 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2371 | WRITE_REG(HwRegs->LinkAddress3Low, 0, TRUE); |
| 2372 | WRITE_REG(HwRegs->LinkAddress3High, 0, TRUE); |
| 2373 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2374 | /* Enable MAC modules */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2375 | WRITE_REG(HwRegs->MacConfig0, 0, TRUE); |
| 2376 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2377 | /* Configure MAC */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2378 | WRITE_REG(HwRegs->MacConfig1, ( |
| 2379 | /* Allow sending of pause */ |
| 2380 | AXGMAC_CFG1_XMT_PAUSE | |
| 2381 | /* Enable XMT */ |
| 2382 | AXGMAC_CFG1_XMT_EN | |
| 2383 | /* Enable detection of pause */ |
| 2384 | AXGMAC_CFG1_RCV_PAUSE | |
| 2385 | /* Enable receive */ |
| 2386 | AXGMAC_CFG1_RCV_EN | |
| 2387 | /* short frame detection */ |
| 2388 | AXGMAC_CFG1_SHORT_ASSERT | |
| 2389 | /* Verify frame length */ |
| 2390 | AXGMAC_CFG1_CHECK_LEN | |
| 2391 | /* Generate FCS */ |
| 2392 | AXGMAC_CFG1_GEN_FCS | |
| 2393 | /* Pad frames to 64 bytes */ |
| 2394 | AXGMAC_CFG1_PAD_64), |
| 2395 | TRUE); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2396 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2397 | /* 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] | 2398 | if (adapter->JumboEnabled) { |
| 2399 | WRITE_REG(HwRegs->MacMaxFrameLen, AXGMAC_MAXFRAME_JUMBO, TRUE); |
| 2400 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2401 | /* |
| 2402 | * AMIIM Configuration Register - |
| 2403 | * The value placed in the AXGMAC_AMIIM_CFG_HALF_CLOCK portion |
| 2404 | * (bottom bits) of this register is used to determine the MDC frequency |
| 2405 | * as specified in the A-XGMAC Design Document. This value must not be |
| 2406 | * zero. The following value (62 or 0x3E) is based on our MAC transmit |
| 2407 | * clock frequency (MTCLK) of 312.5 MHz. Given a maximum MDIO clock |
| 2408 | * frequency of 2.5 MHz (see the PHY spec), we get: |
| 2409 | * 312.5/(2*(X+1)) < 2.5 ==> X = 62. |
| 2410 | * This value happens to be the default value for this register, so we |
| 2411 | * really don't have to do this. |
| 2412 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2413 | WRITE_REG(HwRegs->MacAmiimConfig, 0x0000003E, TRUE); |
| 2414 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2415 | /* Power up and enable PHY and XAUI/XGXS/Serdes logic */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2416 | WRITE_REG(HwRegs->LinkStatus, |
| 2417 | (LS_PHY_CLR_RESET | |
| 2418 | LS_XGXS_ENABLE | |
| 2419 | LS_XGXS_CTL | LS_PHY_CLK_EN | LS_ATTN_ALARM), TRUE); |
| 2420 | DBG_ERROR("After Power Up and enable PHY in sxg_initialize_link\n"); |
| 2421 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2422 | /* |
| 2423 | * Per information given by Aeluros, wait 100 ms after removing reset. |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2424 | * It's not enough to wait for the self-clearing reset bit in reg 0 to |
| 2425 | * clear. |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2426 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2427 | mdelay(100); |
| 2428 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2429 | /* Verify the PHY has come up by checking that the Reset bit has |
| 2430 | * cleared. |
| 2431 | */ |
| 2432 | status = sxg_read_mdio_reg(adapter, |
| 2433 | MIIM_DEV_PHY_PMA, /* PHY PMA/PMD module */ |
| 2434 | PHY_PMA_CONTROL1, /* PMA/PMD control register */ |
| 2435 | &Value); |
| 2436 | DBG_ERROR("After sxg_read_mdio_reg Value[%x] fail=%x\n", Value, |
| 2437 | (Value & PMA_CONTROL1_RESET)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2438 | if (status != STATUS_SUCCESS) |
| 2439 | return (STATUS_FAILURE); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2440 | if (Value & PMA_CONTROL1_RESET) /* reset complete if bit is 0 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2441 | return (STATUS_FAILURE); |
| 2442 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2443 | /* The SERDES should be initialized by now - confirm */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2444 | READ_REG(HwRegs->LinkStatus, Value); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2445 | if (Value & LS_SERDES_DOWN) /* verify SERDES is initialized */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2446 | return (STATUS_FAILURE); |
| 2447 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2448 | /* The XAUI link should also be up - confirm */ |
| 2449 | if (!(Value & LS_XAUI_LINK_UP)) /* verify XAUI link is up */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2450 | return (STATUS_FAILURE); |
| 2451 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2452 | /* Initialize the PHY */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2453 | status = sxg_phy_init(adapter); |
| 2454 | if (status != STATUS_SUCCESS) |
| 2455 | return (STATUS_FAILURE); |
| 2456 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2457 | /* Enable the Link Alarm */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2458 | |
| 2459 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module |
| 2460 | * LASI_CONTROL - LASI control register |
| 2461 | * LASI_CTL_LS_ALARM_ENABLE - enable link alarm bit |
| 2462 | */ |
| 2463 | status = sxg_write_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2464 | LASI_CONTROL, |
| 2465 | LASI_CTL_LS_ALARM_ENABLE); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2466 | if (status != STATUS_SUCCESS) |
| 2467 | return (STATUS_FAILURE); |
| 2468 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2469 | /* XXXTODO - temporary - verify bit is set */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2470 | |
| 2471 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module |
| 2472 | * LASI_CONTROL - LASI control register |
| 2473 | */ |
| 2474 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2475 | LASI_CONTROL, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2476 | &Value); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2477 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2478 | if (status != STATUS_SUCCESS) |
| 2479 | return (STATUS_FAILURE); |
| 2480 | if (!(Value & LASI_CTL_LS_ALARM_ENABLE)) { |
| 2481 | DBG_ERROR("Error! LASI Control Alarm Enable bit not set!\n"); |
| 2482 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2483 | /* Enable receive */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2484 | MaxFrame = adapter->JumboEnabled ? JUMBOMAXFRAME : ETHERMAXFRAME; |
| 2485 | ConfigData = (RCV_CONFIG_ENABLE | |
| 2486 | RCV_CONFIG_ENPARSE | |
| 2487 | RCV_CONFIG_RCVBAD | |
| 2488 | RCV_CONFIG_RCVPAUSE | |
| 2489 | RCV_CONFIG_TZIPV6 | |
| 2490 | RCV_CONFIG_TZIPV4 | |
| 2491 | RCV_CONFIG_HASH_16 | |
| 2492 | RCV_CONFIG_SOCKET | RCV_CONFIG_BUFSIZE(MaxFrame)); |
| 2493 | WRITE_REG(HwRegs->RcvConfig, ConfigData, TRUE); |
| 2494 | |
| 2495 | WRITE_REG(HwRegs->XmtConfig, XMT_CONFIG_ENABLE, TRUE); |
| 2496 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2497 | /* 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] | 2498 | sxg_link_state(adapter, SXG_LINK_DOWN); |
| 2499 | |
| 2500 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XInitLnk", |
| 2501 | adapter, 0, 0, 0); |
| 2502 | return (STATUS_SUCCESS); |
| 2503 | } |
| 2504 | |
| 2505 | /* |
| 2506 | * sxg_phy_init - Initialize the PHY |
| 2507 | * |
| 2508 | * Arguments - |
| 2509 | * adapter - A pointer to our adapter structure |
| 2510 | * |
| 2511 | * Return |
| 2512 | * status |
| 2513 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2514 | static int sxg_phy_init(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2515 | { |
| 2516 | u32 Value; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2517 | struct phy_ucode *p; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2518 | int status; |
| 2519 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2520 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2521 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2522 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module |
| 2523 | * 0xC205 - PHY ID register (?) |
| 2524 | * &Value - XXXTODO - add def |
| 2525 | */ |
| 2526 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2527 | 0xC205, |
| 2528 | &Value); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2529 | if (status != STATUS_SUCCESS) |
| 2530 | return (STATUS_FAILURE); |
| 2531 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2532 | if (Value == 0x0012) { |
| 2533 | /* 0x0012 == AEL2005C PHY(?) - XXXTODO - add def */ |
| 2534 | DBG_ERROR("AEL2005C PHY detected. Downloading PHY \ |
| 2535 | microcode.\n"); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2536 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2537 | /* Initialize AEL2005C PHY and download PHY microcode */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2538 | for (p = PhyUcode; p->Addr != 0xFFFF; p++) { |
| 2539 | if (p->Addr == 0) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2540 | /* if address == 0, data == sleep time in ms */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2541 | mdelay(p->Data); |
| 2542 | } else { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2543 | /* write the given data to the specified address */ |
| 2544 | status = sxg_write_mdio_reg(adapter, |
| 2545 | MIIM_DEV_PHY_PMA, |
| 2546 | /* PHY address */ |
| 2547 | p->Addr, |
| 2548 | /* PHY data */ |
| 2549 | p->Data); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2550 | if (status != STATUS_SUCCESS) |
| 2551 | return (STATUS_FAILURE); |
| 2552 | } |
| 2553 | } |
| 2554 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2555 | DBG_ERROR("EXIT %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2556 | |
| 2557 | return (STATUS_SUCCESS); |
| 2558 | } |
| 2559 | |
| 2560 | /* |
| 2561 | * sxg_link_event - Process a link event notification from the card |
| 2562 | * |
| 2563 | * Arguments - |
| 2564 | * adapter - A pointer to our adapter structure |
| 2565 | * |
| 2566 | * Return |
| 2567 | * None |
| 2568 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2569 | static void sxg_link_event(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2570 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2571 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2572 | enum SXG_LINK_STATE LinkState; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2573 | int status; |
| 2574 | u32 Value; |
| 2575 | |
| 2576 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "LinkEvnt", |
| 2577 | adapter, 0, 0, 0); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2578 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2579 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2580 | /* Check the Link Status register. We should have a Link Alarm. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2581 | READ_REG(HwRegs->LinkStatus, Value); |
| 2582 | if (Value & LS_LINK_ALARM) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2583 | /* |
| 2584 | * We got a Link Status alarm. First, pause to let the |
| 2585 | * link state settle (it can bounce a number of times) |
| 2586 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2587 | mdelay(10); |
| 2588 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2589 | /* Now clear the alarm by reading the LASI status register. */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2590 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module */ |
| 2591 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2592 | /* LASI status register */ |
| 2593 | LASI_STATUS, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2594 | &Value); |
| 2595 | if (status != STATUS_SUCCESS) { |
| 2596 | DBG_ERROR("Error reading LASI Status MDIO register!\n"); |
| 2597 | sxg_link_state(adapter, SXG_LINK_DOWN); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2598 | /* ASSERT(0); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2599 | } |
| 2600 | ASSERT(Value & LASI_STATUS_LS_ALARM); |
| 2601 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2602 | /* Now get and set the link state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2603 | LinkState = sxg_get_link_state(adapter); |
| 2604 | sxg_link_state(adapter, LinkState); |
| 2605 | DBG_ERROR("SXG: Link Alarm occurred. Link is %s\n", |
| 2606 | ((LinkState == SXG_LINK_UP) ? "UP" : "DOWN")); |
| 2607 | } else { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2608 | /* |
| 2609 | * XXXTODO - Assuming Link Attention is only being generated |
| 2610 | * for the Link Alarm pin (and not for a XAUI Link Status change) |
| 2611 | * , then it's impossible to get here. Yet we've gotten here |
| 2612 | * twice (under extreme conditions - bouncing the link up and |
| 2613 | * down many times a second). Needs further investigation. |
| 2614 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2615 | DBG_ERROR("SXG: sxg_link_event: Can't get here!\n"); |
| 2616 | DBG_ERROR("SXG: Link Status == 0x%08X.\n", Value); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2617 | /* ASSERT(0); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2618 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2619 | DBG_ERROR("EXIT %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2620 | |
| 2621 | } |
| 2622 | |
| 2623 | /* |
| 2624 | * sxg_get_link_state - Determine if the link is up or down |
| 2625 | * |
| 2626 | * Arguments - |
| 2627 | * adapter - A pointer to our adapter structure |
| 2628 | * |
| 2629 | * Return |
| 2630 | * Link State |
| 2631 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2632 | 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] | 2633 | { |
| 2634 | int status; |
| 2635 | u32 Value; |
| 2636 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2637 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2638 | |
| 2639 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "GetLink", |
| 2640 | adapter, 0, 0, 0); |
| 2641 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2642 | /* |
| 2643 | * Per the Xenpak spec (and the IEEE 10Gb spec?), the link is up if |
| 2644 | * the following 3 bits (from 3 different MDIO registers) are all true. |
| 2645 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2646 | |
| 2647 | /* MIIM_DEV_PHY_PMA - PHY PMA/PMD module */ |
| 2648 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PMA, |
| 2649 | /* PMA/PMD Receive Signal Detect register */ |
| 2650 | PHY_PMA_RCV_DET, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2651 | &Value); |
| 2652 | if (status != STATUS_SUCCESS) |
| 2653 | goto bad; |
| 2654 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2655 | /* 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] | 2656 | if (!(Value & PMA_RCV_DETECT)) |
| 2657 | return (SXG_LINK_DOWN); |
| 2658 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2659 | /* MIIM_DEV_PHY_PCS - PHY PCS module */ |
| 2660 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_PCS, |
| 2661 | /* PCS 10GBASE-R Status 1 register */ |
| 2662 | PHY_PCS_10G_STATUS1, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2663 | &Value); |
| 2664 | if (status != STATUS_SUCCESS) |
| 2665 | goto bad; |
| 2666 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2667 | /* 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] | 2668 | if (!(Value & PCS_10B_BLOCK_LOCK)) |
| 2669 | return (SXG_LINK_DOWN); |
| 2670 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2671 | status = sxg_read_mdio_reg(adapter, MIIM_DEV_PHY_XS,/* PHY XS module */ |
| 2672 | /* XS Lane Status register */ |
| 2673 | PHY_XS_LANE_STATUS, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2674 | &Value); |
| 2675 | if (status != STATUS_SUCCESS) |
| 2676 | goto bad; |
| 2677 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2678 | /* 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] | 2679 | if (!(Value & XS_LANE_ALIGN)) |
| 2680 | return (SXG_LINK_DOWN); |
| 2681 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2682 | /* All 3 bits are true, so the link is up */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2683 | DBG_ERROR("EXIT %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2684 | |
| 2685 | return (SXG_LINK_UP); |
| 2686 | |
| 2687 | bad: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2688 | /* An error occurred reading an MDIO register. This shouldn't happen. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2689 | DBG_ERROR("Error reading an MDIO register!\n"); |
| 2690 | ASSERT(0); |
| 2691 | return (SXG_LINK_DOWN); |
| 2692 | } |
| 2693 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2694 | static void sxg_indicate_link_state(struct adapter_t *adapter, |
| 2695 | enum SXG_LINK_STATE LinkState) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2696 | { |
| 2697 | if (adapter->LinkState == SXG_LINK_UP) { |
| 2698 | DBG_ERROR("%s: LINK now UP, call netif_start_queue\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2699 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2700 | netif_start_queue(adapter->netdev); |
| 2701 | } else { |
| 2702 | DBG_ERROR("%s: LINK now DOWN, call netif_stop_queue\n", |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2703 | __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2704 | netif_stop_queue(adapter->netdev); |
| 2705 | } |
| 2706 | } |
| 2707 | |
| 2708 | /* |
| 2709 | * sxg_link_state - Set the link state and if necessary, indicate. |
| 2710 | * This routine the central point of processing for all link state changes. |
| 2711 | * Nothing else in the driver should alter the link state or perform |
| 2712 | * link state indications |
| 2713 | * |
| 2714 | * Arguments - |
| 2715 | * adapter - A pointer to our adapter structure |
| 2716 | * LinkState - The link state |
| 2717 | * |
| 2718 | * Return |
| 2719 | * None |
| 2720 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2721 | static void sxg_link_state(struct adapter_t *adapter, |
| 2722 | enum SXG_LINK_STATE LinkState) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2723 | { |
| 2724 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "LnkINDCT", |
| 2725 | adapter, LinkState, adapter->LinkState, adapter->State); |
| 2726 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2727 | DBG_ERROR("ENTER %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2728 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 2729 | /* |
| 2730 | * Hold the adapter lock during this routine. Maybe move |
| 2731 | * the lock to the caller. |
| 2732 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 2733 | /* IMP TODO : Check if we can survive without taking this lock */ |
| 2734 | // spin_lock(&adapter->AdapterLock); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2735 | if (LinkState == adapter->LinkState) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2736 | /* Nothing changed.. */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 2737 | // spin_unlock(&adapter->AdapterLock); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2738 | DBG_ERROR("EXIT #0 %s. Link status = %d\n", |
| 2739 | __func__, LinkState); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2740 | return; |
| 2741 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2742 | /* Save the adapter state */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2743 | adapter->LinkState = LinkState; |
| 2744 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2745 | /* Drop the lock and indicate link state */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 2746 | // spin_unlock(&adapter->AdapterLock); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 2747 | DBG_ERROR("EXIT #1 %s\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2748 | |
| 2749 | sxg_indicate_link_state(adapter, LinkState); |
| 2750 | } |
| 2751 | |
| 2752 | /* |
| 2753 | * sxg_write_mdio_reg - Write to a register on the MDIO bus |
| 2754 | * |
| 2755 | * Arguments - |
| 2756 | * adapter - A pointer to our adapter structure |
| 2757 | * DevAddr - MDIO device number being addressed |
| 2758 | * RegAddr - register address for the specified MDIO device |
| 2759 | * Value - value to write to the MDIO register |
| 2760 | * |
| 2761 | * Return |
| 2762 | * status |
| 2763 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2764 | static int sxg_write_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 2765 | u32 DevAddr, u32 RegAddr, u32 Value) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2766 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2767 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2768 | /* Address operation (written to MIIM field reg) */ |
| 2769 | u32 AddrOp; |
| 2770 | /* Write operation (written to MIIM field reg) */ |
| 2771 | u32 WriteOp; |
| 2772 | u32 Cmd;/* Command (written to MIIM command reg) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2773 | u32 ValueRead; |
| 2774 | u32 Timeout; |
| 2775 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2776 | /* DBG_ERROR("ENTER %s\n", __func__); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2777 | |
| 2778 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "WrtMDIO", |
| 2779 | adapter, 0, 0, 0); |
| 2780 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2781 | /* Ensure values don't exceed field width */ |
| 2782 | DevAddr &= 0x001F; /* 5-bit field */ |
| 2783 | RegAddr &= 0xFFFF; /* 16-bit field */ |
| 2784 | Value &= 0xFFFF; /* 16-bit field */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2785 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2786 | /* Set MIIM field register bits for an MIIM address operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2787 | AddrOp = (MIIM_PORT_NUM << AXGMAC_AMIIM_FIELD_PORT_SHIFT) | |
| 2788 | (DevAddr << AXGMAC_AMIIM_FIELD_DEV_SHIFT) | |
| 2789 | (MIIM_TA_10GB << AXGMAC_AMIIM_FIELD_TA_SHIFT) | |
| 2790 | (MIIM_OP_ADDR << AXGMAC_AMIIM_FIELD_OP_SHIFT) | RegAddr; |
| 2791 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2792 | /* Set MIIM field register bits for an MIIM write operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2793 | WriteOp = (MIIM_PORT_NUM << AXGMAC_AMIIM_FIELD_PORT_SHIFT) | |
| 2794 | (DevAddr << AXGMAC_AMIIM_FIELD_DEV_SHIFT) | |
| 2795 | (MIIM_TA_10GB << AXGMAC_AMIIM_FIELD_TA_SHIFT) | |
| 2796 | (MIIM_OP_WRITE << AXGMAC_AMIIM_FIELD_OP_SHIFT) | Value; |
| 2797 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2798 | /* Set MIIM command register bits to execute an MIIM command */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2799 | Cmd = AXGMAC_AMIIM_CMD_START | AXGMAC_AMIIM_CMD_10G_OPERATION; |
| 2800 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2801 | /* 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] | 2802 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 2803 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2804 | /* MIIM write to set the address of the specified MDIO register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2805 | WRITE_REG(HwRegs->MacAmiimField, AddrOp, TRUE); |
| 2806 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2807 | /* Write to MIIM Command Register to execute to address operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2808 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 2809 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2810 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2811 | Timeout = SXG_LINK_TIMEOUT; |
| 2812 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2813 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2814 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 2815 | if (--Timeout == 0) { |
| 2816 | return (STATUS_FAILURE); |
| 2817 | } |
| 2818 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2819 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2820 | /* Reset the command register command bit */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2821 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 2822 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2823 | /* MIIM write to set up an MDIO write operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2824 | WRITE_REG(HwRegs->MacAmiimField, WriteOp, TRUE); |
| 2825 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2826 | /* Write to MIIM Command Register to execute the write operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2827 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 2828 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2829 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2830 | Timeout = SXG_LINK_TIMEOUT; |
| 2831 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2832 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2833 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 2834 | if (--Timeout == 0) { |
| 2835 | return (STATUS_FAILURE); |
| 2836 | } |
| 2837 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2838 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2839 | /* DBG_ERROR("EXIT %s\n", __func__); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2840 | |
| 2841 | return (STATUS_SUCCESS); |
| 2842 | } |
| 2843 | |
| 2844 | /* |
| 2845 | * sxg_read_mdio_reg - Read a register on the MDIO bus |
| 2846 | * |
| 2847 | * Arguments - |
| 2848 | * adapter - A pointer to our adapter structure |
| 2849 | * DevAddr - MDIO device number being addressed |
| 2850 | * RegAddr - register address for the specified MDIO device |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2851 | * 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] | 2852 | * |
| 2853 | * Return |
| 2854 | * status |
| 2855 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 2856 | static int sxg_read_mdio_reg(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 2857 | u32 DevAddr, u32 RegAddr, u32 *pValue) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2858 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 2859 | struct sxg_hw_regs *HwRegs = adapter->HwRegs; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2860 | u32 AddrOp; /* Address operation (written to MIIM field reg) */ |
| 2861 | u32 ReadOp; /* Read operation (written to MIIM field reg) */ |
| 2862 | u32 Cmd; /* Command (written to MIIM command reg) */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2863 | u32 ValueRead; |
| 2864 | u32 Timeout; |
| 2865 | |
| 2866 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "WrtMDIO", |
| 2867 | adapter, 0, 0, 0); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2868 | DBG_ERROR("ENTER %s\n", __FUNCTION__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2869 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2870 | /* Ensure values don't exceed field width */ |
| 2871 | DevAddr &= 0x001F; /* 5-bit field */ |
| 2872 | RegAddr &= 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 read operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2881 | ReadOp = (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_READ << AXGMAC_AMIIM_FIELD_OP_SHIFT); |
| 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) { |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2904 | DBG_ERROR("EXIT %s with STATUS_FAILURE 1\n", __FUNCTION__); |
| 2905 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2906 | return (STATUS_FAILURE); |
| 2907 | } |
| 2908 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2909 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2910 | /* Reset the command register command bit */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2911 | WRITE_REG(HwRegs->MacAmiimCmd, 0, TRUE); |
| 2912 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2913 | /* MIIM write to set up an MDIO register read operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2914 | WRITE_REG(HwRegs->MacAmiimField, ReadOp, TRUE); |
| 2915 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2916 | /* Write to MIIM Command Register to execute the read operation */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2917 | WRITE_REG(HwRegs->MacAmiimCmd, Cmd, TRUE); |
| 2918 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2919 | /* Poll AMIIM Indicator register to wait for completion */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2920 | Timeout = SXG_LINK_TIMEOUT; |
| 2921 | do { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2922 | udelay(100); /* Timeout in 100us units */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2923 | READ_REG(HwRegs->MacAmiimIndicator, ValueRead); |
| 2924 | if (--Timeout == 0) { |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 2925 | DBG_ERROR("EXIT %s with STATUS_FAILURE 2\n", __FUNCTION__); |
| 2926 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2927 | return (STATUS_FAILURE); |
| 2928 | } |
| 2929 | } while (ValueRead & AXGMAC_AMIIM_INDC_BUSY); |
| 2930 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2931 | /* Read the MDIO register data back from the field register */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2932 | READ_REG(HwRegs->MacAmiimField, *pValue); |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 2933 | *pValue &= 0xFFFF; /* data is in the lower 16 bits */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2934 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2935 | DBG_ERROR("EXIT %s\n", __FUNCTION__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 2936 | |
| 2937 | return (STATUS_SUCCESS); |
| 2938 | } |
| 2939 | |
| 2940 | /* |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 2941 | * Functions to obtain the CRC corresponding to the destination mac address. |
| 2942 | * This is a standard ethernet CRC in that it is a 32-bit, reflected CRC using |
| 2943 | * the polynomial: |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2944 | * x^32 + x^26 + x^23 + x^22 + x^16 + x^12 + x^11 + x^10 + x^8 + x^7 + x^5 |
| 2945 | * + x^4 + x^2 + x^1. |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 2946 | * |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2947 | * After the CRC for the 6 bytes is generated (but before the value is |
| 2948 | * 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] | 2949 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2950 | static u32 sxg_crc_table[256];/* Table of CRC's for all possible byte values */ |
| 2951 | static u32 sxg_crc_init; /* Is table initialized */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 2952 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2953 | /* Contruct the CRC32 table */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 2954 | static void sxg_mcast_init_crc32(void) |
| 2955 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 2956 | u32 c; /* CRC shit reg */ |
| 2957 | u32 e = 0; /* Poly X-or pattern */ |
| 2958 | int i; /* counter */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 2959 | int k; /* byte being shifted into crc */ |
| 2960 | |
| 2961 | static int p[] = { 0, 1, 2, 4, 5, 7, 8, 10, 11, 12, 16, 22, 23, 26 }; |
| 2962 | |
| 2963 | for (i = 0; i < sizeof(p) / sizeof(int); i++) { |
| 2964 | e |= 1L << (31 - p[i]); |
| 2965 | } |
| 2966 | |
| 2967 | for (i = 1; i < 256; i++) { |
| 2968 | c = i; |
| 2969 | for (k = 8; k; k--) { |
| 2970 | c = c & 1 ? (c >> 1) ^ e : c >> 1; |
| 2971 | } |
| 2972 | sxg_crc_table[i] = c; |
| 2973 | } |
| 2974 | } |
| 2975 | |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 2976 | /* |
| 2977 | * Return the MAC hast as described above. |
| 2978 | */ |
| 2979 | static unsigned char sxg_mcast_get_mac_hash(char *macaddr) |
| 2980 | { |
| 2981 | u32 crc; |
| 2982 | char *p; |
| 2983 | int i; |
| 2984 | unsigned char machash = 0; |
| 2985 | |
| 2986 | if (!sxg_crc_init) { |
| 2987 | sxg_mcast_init_crc32(); |
| 2988 | sxg_crc_init = 1; |
| 2989 | } |
| 2990 | |
| 2991 | crc = 0xFFFFFFFF; /* Preload shift register, per crc-32 spec */ |
| 2992 | for (i = 0, p = macaddr; i < 6; ++p, ++i) { |
| 2993 | crc = (crc >> 8) ^ sxg_crc_table[(crc ^ *p) & 0xFF]; |
| 2994 | } |
| 2995 | |
| 2996 | /* Return bits 1-8, transposed */ |
| 2997 | for (i = 1; i < 9; i++) { |
| 2998 | machash |= (((crc >> i) & 1) << (8 - i)); |
| 2999 | } |
| 3000 | |
| 3001 | return (machash); |
| 3002 | } |
| 3003 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3004 | static void sxg_mcast_set_mask(struct adapter_t *adapter) |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3005 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3006 | struct sxg_ucode_regs *sxg_regs = adapter->UcodeRegs; |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3007 | |
| 3008 | DBG_ERROR("%s ENTER (%s) macopts[%x] mask[%llx]\n", __func__, |
| 3009 | adapter->netdev->name, (unsigned int)adapter->MacFilter, |
| 3010 | adapter->MulticastMask); |
| 3011 | |
| 3012 | if (adapter->MacFilter & (MAC_ALLMCAST | MAC_PROMISC)) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3013 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3014 | * Turn on all multicast addresses. We have to do this for |
| 3015 | * promiscuous mode as well as ALLMCAST mode. It saves the |
| 3016 | * Microcode from having keep state about the MAC configuration |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3017 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3018 | /* DBG_ERROR("sxg: %s macopts = MAC_ALLMCAST | MAC_PROMISC\n |
| 3019 | * SLUT MODE!!!\n",__func__); |
| 3020 | */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3021 | WRITE_REG(sxg_regs->McastLow, 0xFFFFFFFF, FLUSH); |
| 3022 | WRITE_REG(sxg_regs->McastHigh, 0xFFFFFFFF, FLUSH); |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3023 | /* DBG_ERROR("%s (%s) WRITE to slic_regs slic_mcastlow&high \ |
| 3024 | * 0xFFFFFFFF\n",__func__, adapter->netdev->name); |
| 3025 | */ |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3026 | |
| 3027 | } else { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3028 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3029 | * Commit our multicast mast to the SLIC by writing to the |
| 3030 | * multicast address mask registers |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3031 | */ |
| 3032 | DBG_ERROR("%s (%s) WRITE mcastlow[%lx] mcasthigh[%lx]\n", |
| 3033 | __func__, adapter->netdev->name, |
| 3034 | ((ulong) (adapter->MulticastMask & 0xFFFFFFFF)), |
| 3035 | ((ulong) |
| 3036 | ((adapter->MulticastMask >> 32) & 0xFFFFFFFF))); |
| 3037 | |
| 3038 | WRITE_REG(sxg_regs->McastLow, |
| 3039 | (u32) (adapter->MulticastMask & 0xFFFFFFFF), FLUSH); |
| 3040 | WRITE_REG(sxg_regs->McastHigh, |
| 3041 | (u32) ((adapter-> |
| 3042 | MulticastMask >> 32) & 0xFFFFFFFF), FLUSH); |
| 3043 | } |
| 3044 | } |
| 3045 | |
| 3046 | /* |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3047 | * Allocate a mcast_address structure to hold the multicast address. |
| 3048 | * Link it in. |
| 3049 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3050 | 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] | 3051 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3052 | struct mcast_address *mcaddr, *mlist; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3053 | bool equaladdr; |
| 3054 | |
| 3055 | /* Check to see if it already exists */ |
| 3056 | mlist = adapter->mcastaddrs; |
| 3057 | while (mlist) { |
| 3058 | ETHER_EQ_ADDR(mlist->address, address, equaladdr); |
| 3059 | if (equaladdr) { |
| 3060 | return (STATUS_SUCCESS); |
| 3061 | } |
| 3062 | mlist = mlist->next; |
| 3063 | } |
| 3064 | |
| 3065 | /* Doesn't already exist. Allocate a structure to hold it */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3066 | mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3067 | if (mcaddr == NULL) |
| 3068 | return 1; |
| 3069 | |
| 3070 | memcpy(mcaddr->address, address, 6); |
| 3071 | |
| 3072 | mcaddr->next = adapter->mcastaddrs; |
| 3073 | adapter->mcastaddrs = mcaddr; |
| 3074 | |
| 3075 | return (STATUS_SUCCESS); |
| 3076 | } |
| 3077 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3078 | 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] | 3079 | { |
| 3080 | unsigned char crcpoly; |
| 3081 | |
| 3082 | /* Get the CRC polynomial for the mac address */ |
| 3083 | crcpoly = sxg_mcast_get_mac_hash(address); |
| 3084 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3085 | /* |
| 3086 | * We only have space on the SLIC for 64 entries. Lop |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3087 | * off the top two bits. (2^6 = 64) |
| 3088 | */ |
| 3089 | crcpoly &= 0x3F; |
| 3090 | |
| 3091 | /* OR in the new bit into our 64 bit mask. */ |
| 3092 | adapter->MulticastMask |= (u64) 1 << crcpoly; |
| 3093 | } |
| 3094 | |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3095 | static void sxg_mcast_set_list(struct net_device *dev) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3096 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3097 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3098 | |
| 3099 | ASSERT(adapter); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3100 | if (dev->flags & IFF_PROMISC) { |
| 3101 | adapter->MacFilter |= MAC_PROMISC; |
| 3102 | } |
| 3103 | //XXX handle other flags as well |
| 3104 | sxg_mcast_set_mask(adapter); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3105 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3106 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3107 | static void sxg_unmap_mmio_space(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3108 | { |
| 3109 | #if LINUX_FREES_ADAPTER_RESOURCES |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3110 | /* |
| 3111 | * if (adapter->Regs) { |
| 3112 | * iounmap(adapter->Regs); |
| 3113 | * } |
| 3114 | * adapter->slic_regs = NULL; |
| 3115 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3116 | #endif |
| 3117 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3118 | |
| 3119 | void sxg_free_sgl_buffers(struct adapter_t *adapter) |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3120 | { |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3121 | struct list_entry *ple; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3122 | struct sxg_scatter_gather *Sgl; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3123 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3124 | while(!(IsListEmpty(&adapter->AllSglBuffers))) { |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3125 | ple = RemoveHeadList(&adapter->AllSglBuffers); |
| 3126 | Sgl = container_of(ple, struct sxg_scatter_gather, AllList); |
| 3127 | kfree(Sgl); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3128 | adapter->AllSglBufferCount--; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3129 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3130 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3131 | |
| 3132 | void sxg_free_rcvblocks(struct adapter_t *adapter) |
| 3133 | { |
| 3134 | u32 i; |
| 3135 | void *temp_RcvBlock; |
| 3136 | struct list_entry *ple; |
| 3137 | struct sxg_rcv_block_hdr *RcvBlockHdr; |
| 3138 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
| 3139 | ASSERT((adapter->state == SXG_STATE_INITIALIZING) || |
| 3140 | (adapter->state == SXG_STATE_HALTING)); |
| 3141 | while(!(IsListEmpty(&adapter->AllRcvBlocks))) { |
| 3142 | |
| 3143 | ple = RemoveHeadList(&adapter->AllRcvBlocks); |
| 3144 | RcvBlockHdr = container_of(ple, struct sxg_rcv_block_hdr, AllList); |
| 3145 | |
| 3146 | if(RcvBlockHdr->VirtualAddress) { |
| 3147 | temp_RcvBlock = RcvBlockHdr->VirtualAddress; |
| 3148 | |
| 3149 | for(i=0; i< SXG_RCV_DESCRIPTORS_PER_BLOCK; |
| 3150 | i++, temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
| 3151 | RcvDataBufferHdr = |
| 3152 | (struct sxg_rcv_data_buffer_hdr *)temp_RcvBlock; |
| 3153 | SXG_FREE_RCV_PACKET(RcvDataBufferHdr); |
| 3154 | } |
| 3155 | } |
| 3156 | |
| 3157 | pci_free_consistent(adapter->pcidev, |
| 3158 | SXG_RCV_BLOCK_SIZE(SXG_RCV_DATA_HDR_SIZE), |
| 3159 | RcvBlockHdr->VirtualAddress, |
| 3160 | RcvBlockHdr->PhysicalAddress); |
| 3161 | adapter->AllRcvBlockCount--; |
| 3162 | } |
| 3163 | ASSERT(adapter->AllRcvBlockCount == 0); |
| 3164 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFrRBlk", |
| 3165 | adapter, 0, 0, 0); |
| 3166 | } |
| 3167 | void sxg_free_mcast_addrs(struct adapter_t *adapter) |
| 3168 | { |
| 3169 | struct sxg_multicast_address *address; |
| 3170 | while(adapter->MulticastAddrs) { |
| 3171 | address = adapter->MulticastAddrs; |
| 3172 | adapter->MulticastAddrs = address->Next; |
| 3173 | kfree(address); |
| 3174 | } |
| 3175 | |
| 3176 | adapter->MulticastMask= 0; |
| 3177 | } |
| 3178 | |
| 3179 | void sxg_unmap_resources(struct adapter_t *adapter) |
| 3180 | { |
| 3181 | if(adapter->HwRegs) { |
| 3182 | iounmap((void *)adapter->HwRegs); |
| 3183 | } |
| 3184 | if(adapter->UcodeRegs) { |
| 3185 | iounmap((void *)adapter->UcodeRegs); |
| 3186 | } |
| 3187 | |
| 3188 | ASSERT(adapter->AllRcvBlockCount == 0); |
| 3189 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFrRBlk", |
| 3190 | adapter, 0, 0, 0); |
| 3191 | } |
| 3192 | |
| 3193 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3194 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3195 | /* |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3196 | * sxg_free_resources - Free everything allocated in SxgAllocateResources |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3197 | * |
| 3198 | * Arguments - |
| 3199 | * adapter - A pointer to our adapter structure |
| 3200 | * |
| 3201 | * Return |
| 3202 | * none |
| 3203 | */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3204 | void sxg_free_resources(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3205 | { |
| 3206 | u32 RssIds, IsrCount; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3207 | u32 i; |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3208 | struct net_device *netdev = adapter->netdev; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3209 | RssIds = SXG_RSS_CPU_COUNT(adapter); |
| 3210 | IsrCount = adapter->MsiEnabled ? RssIds : 1; |
| 3211 | |
| 3212 | if (adapter->BasicAllocations == FALSE) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3213 | /* |
| 3214 | * No allocations have been made, including spinlocks, |
| 3215 | * or listhead initializations. Return. |
| 3216 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3217 | return; |
| 3218 | } |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3219 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3220 | /* Free Irq */ |
| 3221 | free_irq(adapter->netdev->irq, netdev); |
| 3222 | |
| 3223 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3224 | if (!(IsListEmpty(&adapter->AllRcvBlocks))) { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3225 | sxg_free_rcvblocks(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3226 | } |
| 3227 | if (!(IsListEmpty(&adapter->AllSglBuffers))) { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3228 | sxg_free_sgl_buffers(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3229 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3230 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3231 | if (adapter->XmtRingZeroIndex) { |
| 3232 | pci_free_consistent(adapter->pcidev, |
| 3233 | sizeof(u32), |
| 3234 | adapter->XmtRingZeroIndex, |
| 3235 | adapter->PXmtRingZeroIndex); |
| 3236 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3237 | if (adapter->Isr) { |
| 3238 | pci_free_consistent(adapter->pcidev, |
| 3239 | sizeof(u32) * IsrCount, |
| 3240 | adapter->Isr, adapter->PIsr); |
| 3241 | } |
| 3242 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3243 | if (adapter->EventRings) { |
| 3244 | pci_free_consistent(adapter->pcidev, |
| 3245 | sizeof(struct sxg_event_ring) * RssIds, |
| 3246 | adapter->EventRings, adapter->PEventRings); |
| 3247 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3248 | if (adapter->RcvRings) { |
| 3249 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3250 | sizeof(struct sxg_rcv_ring) * 1, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3251 | adapter->RcvRings, |
| 3252 | adapter->PRcvRings); |
| 3253 | adapter->RcvRings = NULL; |
| 3254 | } |
| 3255 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3256 | if(adapter->XmtRings) { |
| 3257 | pci_free_consistent(adapter->pcidev, |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3258 | sizeof(struct sxg_xmt_ring) * 1, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3259 | adapter->XmtRings, |
| 3260 | adapter->PXmtRings); |
| 3261 | adapter->XmtRings = NULL; |
| 3262 | } |
| 3263 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3264 | if (adapter->ucode_stats) { |
| 3265 | pci_unmap_single(adapter->pcidev, |
| 3266 | sizeof(struct sxg_ucode_stats), |
| 3267 | adapter->pucode_stats, PCI_DMA_FROMDEVICE); |
| 3268 | adapter->ucode_stats = NULL; |
| 3269 | } |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3270 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3271 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3272 | /* Unmap register spaces */ |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3273 | sxg_unmap_resources(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3274 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3275 | sxg_free_mcast_addrs(adapter); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3276 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3277 | adapter->BasicAllocations = FALSE; |
| 3278 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3279 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3280 | |
| 3281 | /* |
| 3282 | * sxg_allocate_complete - |
| 3283 | * |
| 3284 | * This routine is called when a memory allocation has completed. |
| 3285 | * |
| 3286 | * Arguments - |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3287 | * struct adapter_t * - Our adapter structure |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3288 | * VirtualAddress - Memory virtual address |
| 3289 | * PhysicalAddress - Memory physical address |
| 3290 | * Length - Length of memory allocated (or 0) |
| 3291 | * Context - The type of buffer allocated |
| 3292 | * |
| 3293 | * Return |
| 3294 | * None. |
| 3295 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3296 | static void sxg_allocate_complete(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3297 | void *VirtualAddress, |
| 3298 | dma_addr_t PhysicalAddress, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3299 | u32 Length, enum sxg_buffer_type Context) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3300 | { |
| 3301 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AllocCmp", |
| 3302 | adapter, VirtualAddress, Length, Context); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3303 | ASSERT(atomic_read(&adapter->pending_allocations)); |
| 3304 | atomic_dec(&adapter->pending_allocations); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3305 | |
| 3306 | switch (Context) { |
| 3307 | |
| 3308 | case SXG_BUFFER_TYPE_RCV: |
| 3309 | sxg_allocate_rcvblock_complete(adapter, |
| 3310 | VirtualAddress, |
| 3311 | PhysicalAddress, Length); |
| 3312 | break; |
| 3313 | case SXG_BUFFER_TYPE_SGL: |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3314 | sxg_allocate_sgl_buffer_complete(adapter, (struct sxg_scatter_gather *) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3315 | VirtualAddress, |
| 3316 | PhysicalAddress, Length); |
| 3317 | break; |
| 3318 | } |
| 3319 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlocCmp", |
| 3320 | adapter, VirtualAddress, Length, Context); |
| 3321 | } |
| 3322 | |
| 3323 | /* |
| 3324 | * sxg_allocate_buffer_memory - Shared memory allocation routine used for |
| 3325 | * synchronous and asynchronous buffer allocations |
| 3326 | * |
| 3327 | * Arguments - |
| 3328 | * adapter - A pointer to our adapter structure |
| 3329 | * Size - block size to allocate |
| 3330 | * BufferType - Type of buffer to allocate |
| 3331 | * |
| 3332 | * Return |
| 3333 | * int |
| 3334 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3335 | static int sxg_allocate_buffer_memory(struct adapter_t *adapter, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3336 | u32 Size, enum sxg_buffer_type BufferType) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3337 | { |
| 3338 | int status; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3339 | void *Buffer; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3340 | dma_addr_t pBuffer; |
| 3341 | |
| 3342 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AllocMem", |
| 3343 | adapter, Size, BufferType, 0); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3344 | /* |
| 3345 | * Grab the adapter lock and check the state. If we're in anything other |
| 3346 | * than INITIALIZING or RUNNING state, fail. This is to prevent |
| 3347 | * allocations in an improper driver state |
| 3348 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3349 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3350 | atomic_inc(&adapter->pending_allocations); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3351 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3352 | if(BufferType != SXG_BUFFER_TYPE_SGL) |
| 3353 | Buffer = pci_alloc_consistent(adapter->pcidev, Size, &pBuffer); |
| 3354 | else { |
| 3355 | Buffer = kzalloc(Size, GFP_ATOMIC); |
| 3356 | pBuffer = NULL; |
| 3357 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3358 | if (Buffer == NULL) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3359 | /* |
| 3360 | * Decrement the AllocationsPending count while holding |
| 3361 | * the lock. Pause processing relies on this |
| 3362 | */ |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3363 | atomic_dec(&adapter->pending_allocations); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3364 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AlcMemF1", |
| 3365 | adapter, Size, BufferType, 0); |
| 3366 | return (STATUS_RESOURCES); |
| 3367 | } |
| 3368 | sxg_allocate_complete(adapter, Buffer, pBuffer, Size, BufferType); |
| 3369 | status = STATUS_SUCCESS; |
| 3370 | |
| 3371 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlocMem", |
| 3372 | adapter, Size, BufferType, status); |
| 3373 | return (status); |
| 3374 | } |
| 3375 | |
| 3376 | /* |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3377 | * sxg_allocate_rcvblock_complete - Complete a receive descriptor |
| 3378 | * block allocation |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3379 | * |
| 3380 | * Arguments - |
| 3381 | * adapter - A pointer to our adapter structure |
| 3382 | * RcvBlock - receive block virtual address |
| 3383 | * PhysicalAddress - Physical address |
| 3384 | * Length - Memory length |
| 3385 | * |
| 3386 | * Return |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3387 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3388 | static void sxg_allocate_rcvblock_complete(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3389 | void *RcvBlock, |
| 3390 | dma_addr_t PhysicalAddress, |
| 3391 | u32 Length) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3392 | { |
| 3393 | u32 i; |
| 3394 | u32 BufferSize = adapter->ReceiveBufferSize; |
| 3395 | u64 Paddr; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3396 | void *temp_RcvBlock; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3397 | struct sxg_rcv_block_hdr *RcvBlockHdr; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3398 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
| 3399 | struct sxg_rcv_descriptor_block *RcvDescriptorBlock; |
| 3400 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3401 | |
| 3402 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AlRcvBlk", |
| 3403 | adapter, RcvBlock, Length, 0); |
| 3404 | if (RcvBlock == NULL) { |
| 3405 | goto fail; |
| 3406 | } |
| 3407 | memset(RcvBlock, 0, Length); |
| 3408 | ASSERT((BufferSize == SXG_RCV_DATA_BUFFER_SIZE) || |
| 3409 | (BufferSize == SXG_RCV_JUMBO_BUFFER_SIZE)); |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3410 | ASSERT(Length == SXG_RCV_BLOCK_SIZE(SXG_RCV_DATA_HDR_SIZE)); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3411 | /* |
| 3412 | * First, initialize the contained pool of receive data buffers. |
| 3413 | * This initialization requires NBL/NB/MDL allocations, if any of them |
| 3414 | * fail, free the block and return without queueing the shared memory |
| 3415 | */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3416 | //RcvDataBuffer = RcvBlock; |
| 3417 | temp_RcvBlock = RcvBlock; |
| 3418 | for (i = 0; i < SXG_RCV_DESCRIPTORS_PER_BLOCK; |
| 3419 | i++, temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
| 3420 | RcvDataBufferHdr = (struct sxg_rcv_data_buffer_hdr *) |
| 3421 | temp_RcvBlock; |
| 3422 | /* For FREE macro assertion */ |
| 3423 | RcvDataBufferHdr->State = SXG_BUFFER_UPSTREAM; |
| 3424 | SXG_ALLOCATE_RCV_PACKET(adapter, RcvDataBufferHdr, BufferSize); |
| 3425 | if (RcvDataBufferHdr->SxgDumbRcvPacket == NULL) |
| 3426 | goto fail; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3427 | |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3428 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3429 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3430 | /* |
| 3431 | * Place this entire block of memory on the AllRcvBlocks queue so it |
| 3432 | * can be free later |
| 3433 | */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3434 | |
| 3435 | RcvBlockHdr = (struct sxg_rcv_block_hdr *) ((unsigned char *)RcvBlock + |
| 3436 | SXG_RCV_BLOCK_HDR_OFFSET(SXG_RCV_DATA_HDR_SIZE)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3437 | RcvBlockHdr->VirtualAddress = RcvBlock; |
| 3438 | RcvBlockHdr->PhysicalAddress = PhysicalAddress; |
| 3439 | spin_lock(&adapter->RcvQLock); |
| 3440 | adapter->AllRcvBlockCount++; |
| 3441 | InsertTailList(&adapter->AllRcvBlocks, &RcvBlockHdr->AllList); |
| 3442 | spin_unlock(&adapter->RcvQLock); |
| 3443 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3444 | /* Now free the contained receive data buffers that we |
| 3445 | * initialized above */ |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3446 | temp_RcvBlock = RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3447 | for (i = 0, Paddr = PhysicalAddress; |
| 3448 | i < SXG_RCV_DESCRIPTORS_PER_BLOCK; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3449 | i++, Paddr += SXG_RCV_DATA_HDR_SIZE, |
| 3450 | temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
| 3451 | RcvDataBufferHdr = |
| 3452 | (struct sxg_rcv_data_buffer_hdr *)temp_RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3453 | spin_lock(&adapter->RcvQLock); |
| 3454 | SXG_FREE_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
| 3455 | spin_unlock(&adapter->RcvQLock); |
| 3456 | } |
| 3457 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3458 | /* 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] | 3459 | RcvDescriptorBlock = |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3460 | (struct sxg_rcv_descriptor_block *) ((unsigned char *)RcvBlock + |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3461 | SXG_RCV_DESCRIPTOR_BLOCK_OFFSET |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3462 | (SXG_RCV_DATA_HDR_SIZE)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3463 | RcvDescriptorBlockHdr = |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3464 | (struct sxg_rcv_descriptor_block_hdr *) ((unsigned char *)RcvBlock + |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3465 | SXG_RCV_DESCRIPTOR_BLOCK_HDR_OFFSET |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3466 | (SXG_RCV_DATA_HDR_SIZE)); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3467 | RcvDescriptorBlockHdr->VirtualAddress = RcvDescriptorBlock; |
| 3468 | RcvDescriptorBlockHdr->PhysicalAddress = Paddr; |
| 3469 | spin_lock(&adapter->RcvQLock); |
| 3470 | SXG_FREE_RCV_DESCRIPTOR_BLOCK(adapter, RcvDescriptorBlockHdr); |
| 3471 | spin_unlock(&adapter->RcvQLock); |
| 3472 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlRBlk", |
| 3473 | adapter, RcvBlock, Length, 0); |
| 3474 | return; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3475 | fail: |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3476 | /* Free any allocated resources */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3477 | if (RcvBlock) { |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3478 | temp_RcvBlock = RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3479 | for (i = 0; i < SXG_RCV_DESCRIPTORS_PER_BLOCK; |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3480 | i++, temp_RcvBlock += SXG_RCV_DATA_HDR_SIZE) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3481 | RcvDataBufferHdr = |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3482 | (struct sxg_rcv_data_buffer_hdr *)temp_RcvBlock; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3483 | SXG_FREE_RCV_PACKET(RcvDataBufferHdr); |
| 3484 | } |
| 3485 | pci_free_consistent(adapter->pcidev, |
| 3486 | Length, RcvBlock, PhysicalAddress); |
| 3487 | } |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3488 | DBG_ERROR("%s: OUT OF RESOURCES\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3489 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_IMPORTANT, "RcvAFail", |
| 3490 | adapter, adapter->FreeRcvBufferCount, |
| 3491 | adapter->FreeRcvBlockCount, adapter->AllRcvBlockCount); |
| 3492 | adapter->Stats.NoMem++; |
| 3493 | } |
| 3494 | |
| 3495 | /* |
| 3496 | * sxg_allocate_sgl_buffer_complete - Complete a SGL buffer allocation |
| 3497 | * |
| 3498 | * Arguments - |
| 3499 | * adapter - A pointer to our adapter structure |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3500 | * SxgSgl - struct sxg_scatter_gather buffer |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3501 | * PhysicalAddress - Physical address |
| 3502 | * Length - Memory length |
| 3503 | * |
| 3504 | * Return |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3505 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3506 | static void sxg_allocate_sgl_buffer_complete(struct adapter_t *adapter, |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3507 | struct sxg_scatter_gather *SxgSgl, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3508 | dma_addr_t PhysicalAddress, |
| 3509 | u32 Length) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3510 | { |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3511 | unsigned long sgl_flags; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3512 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "AlSglCmp", |
| 3513 | adapter, SxgSgl, Length, 0); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3514 | if(!in_irq()) |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3515 | spin_lock_irqsave(&adapter->SglQLock, sgl_flags); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3516 | else |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3517 | spin_lock(&adapter->SglQLock); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3518 | adapter->AllSglBufferCount++; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3519 | /* PhysicalAddress; */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3520 | SxgSgl->PhysicalAddress = PhysicalAddress; |
| 3521 | /* Initialize backpointer once */ |
| 3522 | SxgSgl->adapter = adapter; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3523 | InsertTailList(&adapter->AllSglBuffers, &SxgSgl->AllList); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3524 | if(!in_irq()) |
| 3525 | spin_unlock_irqrestore(&adapter->SglQLock, sgl_flags); |
| 3526 | else |
| 3527 | spin_unlock(&adapter->SglQLock); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3528 | SxgSgl->State = SXG_BUFFER_BUSY; |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3529 | SXG_FREE_SGL_BUFFER(adapter, SxgSgl, NULL, in_irq()); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3530 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XAlSgl", |
| 3531 | adapter, SxgSgl, Length, 0); |
| 3532 | } |
| 3533 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3534 | |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3535 | static void sxg_adapter_set_hwaddr(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3536 | { |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3537 | /* |
| 3538 | * DBG_ERROR ("%s ENTER card->config_set[%x] port[%d] physport[%d] \ |
| 3539 | * funct#[%d]\n", __func__, card->config_set, |
| 3540 | * adapter->port, adapter->physport, adapter->functionnumber); |
| 3541 | * |
| 3542 | * sxg_dbg_macaddrs(adapter); |
| 3543 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3544 | /* DBG_ERROR ("%s AFTER copying from config.macinfo into currmacaddr\n", |
| 3545 | * __FUNCTION__); |
| 3546 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3547 | |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3548 | /* sxg_dbg_macaddrs(adapter); */ |
| 3549 | |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3550 | struct net_device * dev = adapter->netdev; |
| 3551 | if(!dev) |
| 3552 | { |
| 3553 | printk("sxg: Dev is Null\n"); |
| 3554 | } |
| 3555 | |
| 3556 | DBG_ERROR("%s ENTER (%s)\n", __FUNCTION__, adapter->netdev->name); |
| 3557 | |
| 3558 | if (netif_running(dev)) { |
| 3559 | return -EBUSY; |
| 3560 | } |
| 3561 | if (!adapter) { |
| 3562 | return -EBUSY; |
| 3563 | } |
| 3564 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3565 | if (!(adapter->currmacaddr[0] || |
| 3566 | adapter->currmacaddr[1] || |
| 3567 | adapter->currmacaddr[2] || |
| 3568 | adapter->currmacaddr[3] || |
| 3569 | adapter->currmacaddr[4] || adapter->currmacaddr[5])) { |
| 3570 | memcpy(adapter->currmacaddr, adapter->macaddr, 6); |
| 3571 | } |
| 3572 | if (adapter->netdev) { |
| 3573 | memcpy(adapter->netdev->dev_addr, adapter->currmacaddr, 6); |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3574 | memcpy(adapter->netdev->perm_addr, adapter->currmacaddr, 6); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3575 | } |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3576 | /* DBG_ERROR ("%s EXIT port %d\n", __func__, adapter->port); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3577 | sxg_dbg_macaddrs(adapter); |
| 3578 | |
| 3579 | } |
| 3580 | |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3581 | #if XXXTODO |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3582 | 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] | 3583 | { |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3584 | struct adapter_t *adapter = (struct adapter_t *) netdev_priv(dev); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3585 | struct sockaddr *addr = ptr; |
| 3586 | |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3587 | DBG_ERROR("%s ENTER (%s)\n", __func__, adapter->netdev->name); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3588 | |
| 3589 | if (netif_running(dev)) { |
| 3590 | return -EBUSY; |
| 3591 | } |
| 3592 | if (!adapter) { |
| 3593 | return -EBUSY; |
| 3594 | } |
| 3595 | 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] | 3596 | __func__, adapter->netdev->name, adapter->currmacaddr[0], |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3597 | adapter->currmacaddr[1], adapter->currmacaddr[2], |
| 3598 | adapter->currmacaddr[3], adapter->currmacaddr[4], |
| 3599 | adapter->currmacaddr[5]); |
| 3600 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
| 3601 | memcpy(adapter->currmacaddr, addr->sa_data, dev->addr_len); |
| 3602 | 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] | 3603 | __func__, adapter->netdev->name, adapter->currmacaddr[0], |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3604 | adapter->currmacaddr[1], adapter->currmacaddr[2], |
| 3605 | adapter->currmacaddr[3], adapter->currmacaddr[4], |
| 3606 | adapter->currmacaddr[5]); |
| 3607 | |
| 3608 | sxg_config_set(adapter, TRUE); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3609 | return 0; |
| 3610 | } |
Greg Kroah-Hartman | c6c25ed | 2008-10-21 10:41:45 -0700 | [diff] [blame] | 3611 | #endif |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3612 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3613 | /* |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3614 | * SXG DRIVER FUNCTIONS (below) |
| 3615 | * |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3616 | * sxg_initialize_adapter - Initialize adapter |
| 3617 | * |
| 3618 | * Arguments - |
| 3619 | * adapter - A pointer to our adapter structure |
| 3620 | * |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3621 | * Return - int |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3622 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3623 | static int sxg_initialize_adapter(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3624 | { |
| 3625 | u32 RssIds, IsrCount; |
| 3626 | u32 i; |
| 3627 | int status; |
| 3628 | |
| 3629 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "InitAdpt", |
| 3630 | adapter, 0, 0, 0); |
| 3631 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3632 | RssIds = 1; /* XXXTODO SXG_RSS_CPU_COUNT(adapter); */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3633 | IsrCount = adapter->MsiEnabled ? RssIds : 1; |
| 3634 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3635 | /* |
| 3636 | * Sanity check SXG_UCODE_REGS structure definition to |
| 3637 | * make sure the length is correct |
| 3638 | */ |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3639 | ASSERT(sizeof(struct sxg_ucode_regs) == SXG_REGISTER_SIZE_PER_CPU); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3640 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3641 | /* Disable interrupts */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3642 | SXG_DISABLE_ALL_INTERRUPTS(adapter); |
| 3643 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3644 | /* Set MTU */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3645 | ASSERT((adapter->FrameSize == ETHERMAXFRAME) || |
| 3646 | (adapter->FrameSize == JUMBOMAXFRAME)); |
| 3647 | WRITE_REG(adapter->UcodeRegs[0].LinkMtu, adapter->FrameSize, TRUE); |
| 3648 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3649 | /* Set event ring base address and size */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3650 | WRITE_REG64(adapter, |
| 3651 | adapter->UcodeRegs[0].EventBase, adapter->PEventRings, 0); |
| 3652 | WRITE_REG(adapter->UcodeRegs[0].EventSize, EVENT_RING_SIZE, TRUE); |
| 3653 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3654 | /* Per-ISR initialization */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3655 | for (i = 0; i < IsrCount; i++) { |
| 3656 | u64 Addr; |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3657 | /* Set interrupt status pointer */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3658 | Addr = adapter->PIsr + (i * sizeof(u32)); |
| 3659 | WRITE_REG64(adapter, adapter->UcodeRegs[i].Isp, Addr, i); |
| 3660 | } |
| 3661 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3662 | /* XMT ring zero index */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3663 | WRITE_REG64(adapter, |
| 3664 | adapter->UcodeRegs[0].SPSendIndex, |
| 3665 | adapter->PXmtRingZeroIndex, 0); |
| 3666 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3667 | /* Per-RSS initialization */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3668 | for (i = 0; i < RssIds; i++) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3669 | /* Release all event ring entries to the Microcode */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3670 | WRITE_REG(adapter->UcodeRegs[i].EventRelease, EVENT_RING_SIZE, |
| 3671 | TRUE); |
| 3672 | } |
| 3673 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3674 | /* Transmit ring base and size */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3675 | WRITE_REG64(adapter, |
| 3676 | adapter->UcodeRegs[0].XmtBase, adapter->PXmtRings, 0); |
| 3677 | WRITE_REG(adapter->UcodeRegs[0].XmtSize, SXG_XMT_RING_SIZE, TRUE); |
| 3678 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3679 | /* Receive ring base and size */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3680 | WRITE_REG64(adapter, |
| 3681 | adapter->UcodeRegs[0].RcvBase, adapter->PRcvRings, 0); |
| 3682 | WRITE_REG(adapter->UcodeRegs[0].RcvSize, SXG_RCV_RING_SIZE, TRUE); |
| 3683 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3684 | /* Populate the card with receive buffers */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3685 | sxg_stock_rcv_buffers(adapter); |
| 3686 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3687 | /* |
| 3688 | * Initialize checksum offload capabilities. At the moment we always |
| 3689 | * enable IP and TCP receive checksums on the card. Depending on the |
| 3690 | * checksum configuration specified by the user, we can choose to |
| 3691 | * report or ignore the checksum information provided by the card. |
| 3692 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3693 | WRITE_REG(adapter->UcodeRegs[0].ReceiveChecksum, |
| 3694 | SXG_RCV_TCP_CSUM_ENABLED | SXG_RCV_IP_CSUM_ENABLED, TRUE); |
| 3695 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3696 | /* Initialize the MAC, XAUI */ |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3697 | DBG_ERROR("sxg: %s ENTER sxg_initialize_link\n", __func__); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3698 | status = sxg_initialize_link(adapter); |
Harvey Harrison | e88bd23 | 2008-10-17 14:46:10 -0700 | [diff] [blame] | 3699 | 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] | 3700 | status); |
| 3701 | if (status != STATUS_SUCCESS) { |
| 3702 | return (status); |
| 3703 | } |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3704 | /* |
| 3705 | * Initialize Dead to FALSE. |
| 3706 | * SlicCheckForHang or SlicDumpThread will take it from here. |
| 3707 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3708 | adapter->Dead = FALSE; |
| 3709 | adapter->PingOutstanding = FALSE; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3710 | adapter->State = SXG_STATE_RUNNING; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3711 | |
| 3712 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XInit", |
| 3713 | adapter, 0, 0, 0); |
| 3714 | return (STATUS_SUCCESS); |
| 3715 | } |
| 3716 | |
| 3717 | /* |
| 3718 | * sxg_fill_descriptor_block - Populate a descriptor block and give it to |
| 3719 | * the card. The caller should hold the RcvQLock |
| 3720 | * |
| 3721 | * Arguments - |
| 3722 | * adapter - A pointer to our adapter structure |
| 3723 | * RcvDescriptorBlockHdr - Descriptor block to fill |
| 3724 | * |
| 3725 | * Return |
| 3726 | * status |
| 3727 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3728 | static int sxg_fill_descriptor_block(struct adapter_t *adapter, |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3729 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3730 | { |
| 3731 | u32 i; |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3732 | struct sxg_ring_info *RcvRingInfo = &adapter->RcvRingZeroInfo; |
| 3733 | struct sxg_rcv_data_buffer_hdr *RcvDataBufferHdr; |
| 3734 | struct sxg_rcv_descriptor_block *RcvDescriptorBlock; |
| 3735 | struct sxg_cmd *RingDescriptorCmd; |
| 3736 | struct sxg_rcv_ring *RingZero = &adapter->RcvRings[0]; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3737 | |
| 3738 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "FilBlk", |
| 3739 | adapter, adapter->RcvBuffersOnCard, |
| 3740 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
| 3741 | |
| 3742 | ASSERT(RcvDescriptorBlockHdr); |
| 3743 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3744 | /* |
| 3745 | * If we don't have the resources to fill the descriptor block, |
| 3746 | * return failure |
| 3747 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3748 | if ((adapter->FreeRcvBufferCount < SXG_RCV_DESCRIPTORS_PER_BLOCK) || |
| 3749 | SXG_RING_FULL(RcvRingInfo)) { |
| 3750 | adapter->Stats.NoMem++; |
| 3751 | return (STATUS_FAILURE); |
| 3752 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3753 | /* Get a ring descriptor command */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3754 | SXG_GET_CMD(RingZero, |
| 3755 | RcvRingInfo, RingDescriptorCmd, RcvDescriptorBlockHdr); |
| 3756 | ASSERT(RingDescriptorCmd); |
| 3757 | RcvDescriptorBlockHdr->State = SXG_BUFFER_ONCARD; |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3758 | RcvDescriptorBlock = (struct sxg_rcv_descriptor_block *) |
| 3759 | RcvDescriptorBlockHdr->VirtualAddress; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3760 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3761 | /* Fill in the descriptor block */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3762 | for (i = 0; i < SXG_RCV_DESCRIPTORS_PER_BLOCK; i++) { |
| 3763 | SXG_GET_RCV_DATA_BUFFER(adapter, RcvDataBufferHdr); |
| 3764 | ASSERT(RcvDataBufferHdr); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3765 | // ASSERT(RcvDataBufferHdr->SxgDumbRcvPacket); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3766 | if (!RcvDataBufferHdr->SxgDumbRcvPacket) { |
| 3767 | SXG_ALLOCATE_RCV_PACKET(adapter, RcvDataBufferHdr, |
| 3768 | adapter->ReceiveBufferSize); |
| 3769 | if(RcvDataBufferHdr->skb) |
| 3770 | RcvDataBufferHdr->SxgDumbRcvPacket = |
| 3771 | RcvDataBufferHdr->skb; |
| 3772 | else |
| 3773 | goto no_memory; |
| 3774 | } |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3775 | SXG_REINIATIALIZE_PACKET(RcvDataBufferHdr->SxgDumbRcvPacket); |
| 3776 | RcvDataBufferHdr->State = SXG_BUFFER_ONCARD; |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3777 | RcvDescriptorBlock->Descriptors[i].VirtualAddress = |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3778 | (void *)RcvDataBufferHdr; |
Mithlesh Thukral | 1323e5f | 2009-01-05 21:13:23 +0530 | [diff] [blame] | 3779 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3780 | RcvDescriptorBlock->Descriptors[i].PhysicalAddress = |
| 3781 | RcvDataBufferHdr->PhysicalAddress; |
| 3782 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3783 | /* Add the descriptor block to receive descriptor ring 0 */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3784 | RingDescriptorCmd->Sgl = RcvDescriptorBlockHdr->PhysicalAddress; |
| 3785 | |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3786 | /* |
| 3787 | * RcvBuffersOnCard is not protected via the receive lock (see |
| 3788 | * sxg_process_event_queue) We don't want to grap a lock every time a |
| 3789 | * buffer is returned to us, so we use atomic interlocked functions |
| 3790 | * instead. |
| 3791 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3792 | adapter->RcvBuffersOnCard += SXG_RCV_DESCRIPTORS_PER_BLOCK; |
| 3793 | |
| 3794 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DscBlk", |
| 3795 | RcvDescriptorBlockHdr, |
| 3796 | RingDescriptorCmd, RcvRingInfo->Head, RcvRingInfo->Tail); |
| 3797 | |
| 3798 | WRITE_REG(adapter->UcodeRegs[0].RcvCmd, 1, true); |
| 3799 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFilBlk", |
| 3800 | adapter, adapter->RcvBuffersOnCard, |
| 3801 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
| 3802 | return (STATUS_SUCCESS); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3803 | no_memory: |
| 3804 | return (-ENOMEM); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3805 | } |
| 3806 | |
| 3807 | /* |
| 3808 | * sxg_stock_rcv_buffers - Stock the card with receive buffers |
| 3809 | * |
| 3810 | * Arguments - |
| 3811 | * adapter - A pointer to our adapter structure |
| 3812 | * |
| 3813 | * Return |
| 3814 | * None |
| 3815 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3816 | static void sxg_stock_rcv_buffers(struct adapter_t *adapter) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3817 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3818 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3819 | |
| 3820 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "StockBuf", |
| 3821 | adapter, adapter->RcvBuffersOnCard, |
| 3822 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3823 | /* |
| 3824 | * First, see if we've got less than our minimum threshold of |
| 3825 | * receive buffers, there isn't an allocation in progress, and |
| 3826 | * we haven't exceeded our maximum.. get another block of buffers |
| 3827 | * None of this needs to be SMP safe. It's round numbers. |
| 3828 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3829 | if ((adapter->FreeRcvBufferCount < SXG_MIN_RCV_DATA_BUFFERS) && |
| 3830 | (adapter->AllRcvBlockCount < SXG_MAX_RCV_BLOCKS) && |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3831 | (atomic_read(&adapter->pending_allocations) == 0)) { |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3832 | sxg_allocate_buffer_memory(adapter, |
Mithlesh Thukral | d0128aa | 2009-01-05 21:18:04 +0530 | [diff] [blame] | 3833 | SXG_RCV_BLOCK_SIZE |
| 3834 | (SXG_RCV_DATA_HDR_SIZE), |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3835 | SXG_BUFFER_TYPE_RCV); |
| 3836 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3837 | /* Now grab the RcvQLock lock and proceed */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3838 | spin_lock(&adapter->RcvQLock); |
| 3839 | while (adapter->RcvBuffersOnCard < SXG_RCV_DATA_BUFFERS) { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3840 | struct list_entry *_ple; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3841 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3842 | /* Get a descriptor block */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3843 | RcvDescriptorBlockHdr = NULL; |
| 3844 | if (adapter->FreeRcvBlockCount) { |
| 3845 | _ple = RemoveHeadList(&adapter->FreeRcvBlocks); |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3846 | RcvDescriptorBlockHdr = |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3847 | container_of(_ple, struct sxg_rcv_descriptor_block_hdr, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3848 | FreeList); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3849 | adapter->FreeRcvBlockCount--; |
| 3850 | RcvDescriptorBlockHdr->State = SXG_BUFFER_BUSY; |
| 3851 | } |
| 3852 | |
| 3853 | if (RcvDescriptorBlockHdr == NULL) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3854 | /* Bail out.. */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3855 | adapter->Stats.NoMem++; |
| 3856 | break; |
| 3857 | } |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3858 | /* Fill in the descriptor block and give it to the card */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3859 | if (sxg_fill_descriptor_block(adapter, RcvDescriptorBlockHdr) == |
| 3860 | STATUS_FAILURE) { |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3861 | /* Free the descriptor block */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3862 | SXG_FREE_RCV_DESCRIPTOR_BLOCK(adapter, |
| 3863 | RcvDescriptorBlockHdr); |
| 3864 | break; |
| 3865 | } |
| 3866 | } |
| 3867 | spin_unlock(&adapter->RcvQLock); |
| 3868 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XFilBlks", |
| 3869 | adapter, adapter->RcvBuffersOnCard, |
| 3870 | adapter->FreeRcvBufferCount, adapter->AllRcvBlockCount); |
| 3871 | } |
| 3872 | |
| 3873 | /* |
| 3874 | * sxg_complete_descriptor_blocks - Return descriptor blocks that have been |
| 3875 | * completed by the microcode |
| 3876 | * |
| 3877 | * Arguments - |
| 3878 | * adapter - A pointer to our adapter structure |
| 3879 | * Index - Where the microcode is up to |
| 3880 | * |
| 3881 | * Return |
| 3882 | * None |
| 3883 | */ |
J.R. Mauro | 73b0706 | 2008-10-28 18:42:02 -0400 | [diff] [blame] | 3884 | static void sxg_complete_descriptor_blocks(struct adapter_t *adapter, |
J.R. Mauro | 5c7514e | 2008-10-05 20:38:52 -0400 | [diff] [blame] | 3885 | unsigned char Index) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3886 | { |
Mithlesh Thukral | 942798b | 2009-01-05 21:14:34 +0530 | [diff] [blame] | 3887 | struct sxg_rcv_ring *RingZero = &adapter->RcvRings[0]; |
| 3888 | struct sxg_ring_info *RcvRingInfo = &adapter->RcvRingZeroInfo; |
| 3889 | struct sxg_rcv_descriptor_block_hdr *RcvDescriptorBlockHdr; |
| 3890 | struct sxg_cmd *RingDescriptorCmd; |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3891 | |
| 3892 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpRBlks", |
| 3893 | adapter, Index, RcvRingInfo->Head, RcvRingInfo->Tail); |
| 3894 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3895 | /* Now grab the RcvQLock lock and proceed */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3896 | spin_lock(&adapter->RcvQLock); |
| 3897 | ASSERT(Index != RcvRingInfo->Tail); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3898 | while (sxg_ring_get_forward_diff(RcvRingInfo, Index, |
| 3899 | RcvRingInfo->Tail) > 3) { |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3900 | /* |
| 3901 | * Locate the current Cmd (ring descriptor entry), and |
| 3902 | * associated receive descriptor block, and advance |
| 3903 | * the tail |
| 3904 | */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3905 | SXG_RETURN_CMD(RingZero, |
| 3906 | RcvRingInfo, |
| 3907 | RingDescriptorCmd, RcvDescriptorBlockHdr); |
| 3908 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "CmpRBlk", |
| 3909 | RcvRingInfo->Head, RcvRingInfo->Tail, |
| 3910 | RingDescriptorCmd, RcvDescriptorBlockHdr); |
| 3911 | |
J.R. Mauro | b243c4a | 2008-10-20 19:28:58 -0400 | [diff] [blame] | 3912 | /* Clear the SGL field */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3913 | RingDescriptorCmd->Sgl = 0; |
Mithlesh Thukral | ddd6f0a | 2009-01-05 21:15:29 +0530 | [diff] [blame] | 3914 | /* |
| 3915 | * Attempt to refill it and hand it right back to the |
| 3916 | * card. If we fail to refill it, free the descriptor block |
| 3917 | * header. The card will be restocked later via the |
| 3918 | * RcvBuffersOnCard test |
| 3919 | */ |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3920 | if (sxg_fill_descriptor_block(adapter, |
| 3921 | RcvDescriptorBlockHdr) == STATUS_FAILURE) |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3922 | SXG_FREE_RCV_DESCRIPTOR_BLOCK(adapter, |
| 3923 | RcvDescriptorBlockHdr); |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3924 | } |
| 3925 | spin_unlock(&adapter->RcvQLock); |
| 3926 | SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XCRBlks", |
| 3927 | adapter, Index, RcvRingInfo->Head, RcvRingInfo->Tail); |
| 3928 | } |
| 3929 | |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3930 | /* |
| 3931 | * Read the statistics which the card has been maintaining. |
| 3932 | */ |
| 3933 | void sxg_collect_statistics(struct adapter_t *adapter) |
| 3934 | { |
| 3935 | if(adapter->ucode_stats) |
| 3936 | WRITE_REG64(adapter, adapter->UcodeRegs[0].GetUcodeStats, adapter->pucode_stats, 0); |
Mithlesh Thukral | 6a2946b | 2009-01-19 20:24:30 +0530 | [diff] [blame^] | 3937 | adapter->stats.rx_fifo_errors = adapter->ucode_stats->ERDrops; |
| 3938 | adapter->stats.rx_over_errors = adapter->ucode_stats->NBDrops; |
| 3939 | adapter->stats.tx_fifo_errors = adapter->ucode_stats->XDrops; |
| 3940 | } |
| 3941 | |
| 3942 | static struct net_device_stats *sxg_get_stats(struct net_device * dev) |
| 3943 | { |
| 3944 | struct adapter_t *adapter = netdev_priv(dev); |
| 3945 | |
| 3946 | sxg_collect_statistics(adapter); |
| 3947 | return (&adapter->stats); |
Mithlesh Thukral | d9d578b | 2009-01-19 20:23:22 +0530 | [diff] [blame] | 3948 | } |
| 3949 | |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3950 | static struct pci_driver sxg_driver = { |
Mithlesh Thukral | 371d7a9 | 2009-01-19 20:22:34 +0530 | [diff] [blame] | 3951 | .name = sxg_driver_name, |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3952 | .id_table = sxg_pci_tbl, |
| 3953 | .probe = sxg_entry_probe, |
| 3954 | .remove = sxg_entry_remove, |
| 3955 | #if SXG_POWER_MANAGEMENT_ENABLED |
| 3956 | .suspend = sxgpm_suspend, |
| 3957 | .resume = sxgpm_resume, |
| 3958 | #endif |
Mithlesh Thukral | cb636fe | 2009-01-05 21:16:56 +0530 | [diff] [blame] | 3959 | /* .shutdown = slic_shutdown, MOOK_INVESTIGATE */ |
Greg Kroah-Hartman | 5db6b77 | 2008-08-21 14:04:55 -0700 | [diff] [blame] | 3960 | }; |
| 3961 | |
| 3962 | static int __init sxg_module_init(void) |
| 3963 | { |
| 3964 | sxg_init_driver(); |
| 3965 | |
| 3966 | if (debug >= 0) |
| 3967 | sxg_debug = debug; |
| 3968 | |
| 3969 | return pci_register_driver(&sxg_driver); |
| 3970 | } |
| 3971 | |
| 3972 | static void __exit sxg_module_cleanup(void) |
| 3973 | { |
| 3974 | pci_unregister_driver(&sxg_driver); |
| 3975 | } |
| 3976 | |
| 3977 | module_init(sxg_module_init); |
| 3978 | module_exit(sxg_module_cleanup); |