Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2003 - 2006 NetXen, Inc. |
| 3 | * All rights reserved. |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 4 | * |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License |
| 7 | * as published by the Free Software Foundation; either version 2 |
| 8 | * of the License, or (at your option) any later version. |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 9 | * |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 14 | * |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 18 | * MA 02111-1307, USA. |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 19 | * |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 20 | * The full GNU General Public License is included in this distribution |
| 21 | * in the file called LICENSE. |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 22 | * |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 23 | * Contact Information: |
| 24 | * info@netxen.com |
| 25 | * NetXen, |
| 26 | * 3965 Freedom Circle, Fourth floor, |
| 27 | * Santa Clara, CA 95054 |
| 28 | * |
| 29 | * |
| 30 | * Source file for NIC routines to initialize the Phantom Hardware |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | #include <linux/netdevice.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include "netxen_nic.h" |
| 37 | #include "netxen_nic_hw.h" |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 38 | #include "netxen_nic_phan_reg.h" |
| 39 | |
| 40 | struct crb_addr_pair { |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 41 | u32 addr; |
| 42 | u32 data; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 43 | }; |
| 44 | |
| 45 | #define NETXEN_MAX_CRB_XFORM 60 |
| 46 | static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 47 | #define NETXEN_ADDR_ERROR (0xffffffff) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 48 | |
| 49 | #define crb_addr_transform(name) \ |
| 50 | crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \ |
| 51 | NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20 |
| 52 | |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 53 | #define NETXEN_NIC_XDMA_RESET 0x8000ff |
| 54 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 55 | static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
| 56 | uint32_t ctx, uint32_t ringid); |
| 57 | |
| 58 | #if 0 |
| 59 | static void netxen_nic_locked_write_reg(struct netxen_adapter *adapter, |
| 60 | unsigned long off, int *data) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 61 | { |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 62 | void __iomem *addr = pci_base_offset(adapter, off); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 63 | writel(*data, addr); |
| 64 | } |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 65 | #endif /* 0 */ |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 66 | |
| 67 | static void crb_addr_transform_setup(void) |
| 68 | { |
| 69 | crb_addr_transform(XDMA); |
| 70 | crb_addr_transform(TIMR); |
| 71 | crb_addr_transform(SRE); |
| 72 | crb_addr_transform(SQN3); |
| 73 | crb_addr_transform(SQN2); |
| 74 | crb_addr_transform(SQN1); |
| 75 | crb_addr_transform(SQN0); |
| 76 | crb_addr_transform(SQS3); |
| 77 | crb_addr_transform(SQS2); |
| 78 | crb_addr_transform(SQS1); |
| 79 | crb_addr_transform(SQS0); |
| 80 | crb_addr_transform(RPMX7); |
| 81 | crb_addr_transform(RPMX6); |
| 82 | crb_addr_transform(RPMX5); |
| 83 | crb_addr_transform(RPMX4); |
| 84 | crb_addr_transform(RPMX3); |
| 85 | crb_addr_transform(RPMX2); |
| 86 | crb_addr_transform(RPMX1); |
| 87 | crb_addr_transform(RPMX0); |
| 88 | crb_addr_transform(ROMUSB); |
| 89 | crb_addr_transform(SN); |
| 90 | crb_addr_transform(QMN); |
| 91 | crb_addr_transform(QMS); |
| 92 | crb_addr_transform(PGNI); |
| 93 | crb_addr_transform(PGND); |
| 94 | crb_addr_transform(PGN3); |
| 95 | crb_addr_transform(PGN2); |
| 96 | crb_addr_transform(PGN1); |
| 97 | crb_addr_transform(PGN0); |
| 98 | crb_addr_transform(PGSI); |
| 99 | crb_addr_transform(PGSD); |
| 100 | crb_addr_transform(PGS3); |
| 101 | crb_addr_transform(PGS2); |
| 102 | crb_addr_transform(PGS1); |
| 103 | crb_addr_transform(PGS0); |
| 104 | crb_addr_transform(PS); |
| 105 | crb_addr_transform(PH); |
| 106 | crb_addr_transform(NIU); |
| 107 | crb_addr_transform(I2Q); |
| 108 | crb_addr_transform(EG); |
| 109 | crb_addr_transform(MN); |
| 110 | crb_addr_transform(MS); |
| 111 | crb_addr_transform(CAS2); |
| 112 | crb_addr_transform(CAS1); |
| 113 | crb_addr_transform(CAS0); |
| 114 | crb_addr_transform(CAM); |
| 115 | crb_addr_transform(C2C1); |
| 116 | crb_addr_transform(C2C0); |
Amit S. Kale | 1fcca1a | 2007-02-05 07:35:26 -0800 | [diff] [blame] | 117 | crb_addr_transform(SMB); |
Dhananjay Phadke | e4c93c8 | 2008-07-21 19:44:02 -0700 | [diff] [blame^] | 118 | crb_addr_transform(OCM0); |
| 119 | crb_addr_transform(I2C0); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | int netxen_init_firmware(struct netxen_adapter *adapter) |
| 123 | { |
| 124 | u32 state = 0, loops = 0, err = 0; |
| 125 | |
| 126 | /* Window 1 call */ |
| 127 | state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); |
| 128 | |
| 129 | if (state == PHAN_INITIALIZE_ACK) |
| 130 | return 0; |
| 131 | |
| 132 | while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) { |
| 133 | udelay(100); |
| 134 | /* Window 1 call */ |
| 135 | state = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); |
| 136 | |
| 137 | loops++; |
| 138 | } |
| 139 | if (loops >= 2000) { |
| 140 | printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n", |
| 141 | state); |
| 142 | err = -EIO; |
| 143 | return err; |
| 144 | } |
| 145 | /* Window 1 call */ |
dhananjay.phadke@gmail.com | 2d1a3bb | 2007-07-02 00:26:00 +0530 | [diff] [blame] | 146 | writel(INTR_SCHEME_PERPORT, |
| 147 | NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST)); |
Dhananjay Phadke | 443be79 | 2008-03-17 19:59:48 -0700 | [diff] [blame] | 148 | writel(MSI_MODE_MULTIFUNC, |
| 149 | NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_MSI_MODE_HOST)); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 150 | writel(MPORT_MULTI_FUNCTION_MODE, |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 151 | NETXEN_CRB_NORMALIZE(adapter, CRB_MPORT_MODE)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 152 | writel(PHAN_INITIALIZE_ACK, |
| 153 | NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); |
| 154 | |
| 155 | return err; |
| 156 | } |
| 157 | |
| 158 | void netxen_initialize_adapter_sw(struct netxen_adapter *adapter) |
| 159 | { |
| 160 | int ctxid, ring; |
| 161 | u32 i; |
| 162 | u32 num_rx_bufs = 0; |
| 163 | struct netxen_rcv_desc_ctx *rcv_desc; |
| 164 | |
| 165 | DPRINTK(INFO, "initializing some queues: %p\n", adapter); |
| 166 | for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { |
| 167 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { |
| 168 | struct netxen_rx_buffer *rx_buf; |
| 169 | rcv_desc = &adapter->recv_ctx[ctxid].rcv_desc[ring]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 170 | rcv_desc->begin_alloc = 0; |
| 171 | rx_buf = rcv_desc->rx_buf_arr; |
| 172 | num_rx_bufs = rcv_desc->max_rx_desc_count; |
| 173 | /* |
| 174 | * Now go through all of them, set reference handles |
| 175 | * and put them in the queues. |
| 176 | */ |
| 177 | for (i = 0; i < num_rx_bufs; i++) { |
| 178 | rx_buf->ref_handle = i; |
| 179 | rx_buf->state = NETXEN_BUFFER_FREE; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 180 | DPRINTK(INFO, "Rx buf:ctx%d i(%d) rx_buf:" |
| 181 | "%p\n", ctxid, i, rx_buf); |
| 182 | rx_buf++; |
| 183 | } |
| 184 | } |
| 185 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 186 | } |
| 187 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 188 | void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) |
| 189 | { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 190 | switch (adapter->ahw.board_type) { |
| 191 | case NETXEN_NIC_GBE: |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 192 | adapter->enable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 193 | netxen_niu_gbe_enable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 194 | adapter->disable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 195 | netxen_niu_gbe_disable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 196 | adapter->handle_phy_intr = netxen_nic_gbe_handle_phy_intr; |
| 197 | adapter->macaddr_set = netxen_niu_macaddr_set; |
| 198 | adapter->set_mtu = netxen_nic_set_mtu_gb; |
| 199 | adapter->set_promisc = netxen_niu_set_promiscuous_mode; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 200 | adapter->phy_read = netxen_niu_gbe_phy_read; |
| 201 | adapter->phy_write = netxen_niu_gbe_phy_write; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 202 | adapter->init_niu = netxen_nic_init_niu_gb; |
| 203 | adapter->stop_port = netxen_niu_disable_gbe_port; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 204 | break; |
| 205 | |
| 206 | case NETXEN_NIC_XGBE: |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 207 | adapter->enable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 208 | netxen_niu_xgbe_enable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 209 | adapter->disable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 210 | netxen_niu_xgbe_disable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 211 | adapter->handle_phy_intr = netxen_nic_xgbe_handle_phy_intr; |
| 212 | adapter->macaddr_set = netxen_niu_xg_macaddr_set; |
| 213 | adapter->set_mtu = netxen_nic_set_mtu_xgb; |
| 214 | adapter->init_port = netxen_niu_xg_init_port; |
| 215 | adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 216 | adapter->stop_port = netxen_niu_disable_xg_port; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 217 | break; |
| 218 | |
| 219 | default: |
| 220 | break; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /* |
| 225 | * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB |
| 226 | * address to external PCI CRB address. |
| 227 | */ |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 228 | static u32 netxen_decode_crb_addr(u32 addr) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 229 | { |
| 230 | int i; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 231 | u32 base_addr, offset, pci_base; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 232 | |
| 233 | crb_addr_transform_setup(); |
| 234 | |
| 235 | pci_base = NETXEN_ADDR_ERROR; |
| 236 | base_addr = addr & 0xfff00000; |
| 237 | offset = addr & 0x000fffff; |
| 238 | |
| 239 | for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { |
| 240 | if (crb_addr_xform[i] == base_addr) { |
| 241 | pci_base = i << 20; |
| 242 | break; |
| 243 | } |
| 244 | } |
| 245 | if (pci_base == NETXEN_ADDR_ERROR) |
| 246 | return pci_base; |
| 247 | else |
| 248 | return (pci_base + offset); |
| 249 | } |
| 250 | |
Mithlesh Thukral | 13ba9c7 | 2007-04-20 07:53:05 -0700 | [diff] [blame] | 251 | static long rom_max_timeout = 100; |
| 252 | static long rom_lock_timeout = 10000; |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 253 | #if 0 |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 254 | static long rom_write_timeout = 700; |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 255 | #endif |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 256 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 257 | static int rom_lock(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 258 | { |
| 259 | int iter; |
| 260 | u32 done = 0; |
| 261 | int timeout = 0; |
| 262 | |
| 263 | while (!done) { |
| 264 | /* acquire semaphore2 from PCI HW block */ |
| 265 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK), |
| 266 | &done); |
| 267 | if (done == 1) |
| 268 | break; |
| 269 | if (timeout >= rom_lock_timeout) |
| 270 | return -EIO; |
| 271 | |
| 272 | timeout++; |
| 273 | /* |
| 274 | * Yield CPU |
| 275 | */ |
| 276 | if (!in_atomic()) |
| 277 | schedule(); |
| 278 | else { |
| 279 | for (iter = 0; iter < 20; iter++) |
| 280 | cpu_relax(); /*This a nop instr on i386 */ |
| 281 | } |
| 282 | } |
| 283 | netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER); |
| 284 | return 0; |
| 285 | } |
| 286 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 287 | static int netxen_wait_rom_done(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 288 | { |
| 289 | long timeout = 0; |
| 290 | long done = 0; |
| 291 | |
| 292 | while (done == 0) { |
| 293 | done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); |
| 294 | done &= 2; |
| 295 | timeout++; |
| 296 | if (timeout >= rom_max_timeout) { |
| 297 | printk("Timeout reached waiting for rom done"); |
| 298 | return -EIO; |
| 299 | } |
| 300 | } |
| 301 | return 0; |
| 302 | } |
| 303 | |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 304 | #if 0 |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 305 | static int netxen_rom_wren(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 306 | { |
| 307 | /* Set write enable latch in ROM status register */ |
| 308 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
| 309 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, |
| 310 | M25P_INSTR_WREN); |
| 311 | if (netxen_wait_rom_done(adapter)) { |
| 312 | return -1; |
| 313 | } |
| 314 | return 0; |
| 315 | } |
| 316 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 317 | static unsigned int netxen_rdcrbreg(struct netxen_adapter *adapter, |
| 318 | unsigned int addr) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 319 | { |
| 320 | unsigned int data = 0xdeaddead; |
| 321 | data = netxen_nic_reg_read(adapter, addr); |
| 322 | return data; |
| 323 | } |
| 324 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 325 | static int netxen_do_rom_rdsr(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 326 | { |
| 327 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, |
| 328 | M25P_INSTR_RDSR); |
| 329 | if (netxen_wait_rom_done(adapter)) { |
| 330 | return -1; |
| 331 | } |
| 332 | return netxen_rdcrbreg(adapter, NETXEN_ROMUSB_ROM_RDATA); |
| 333 | } |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 334 | #endif |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 335 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 336 | static void netxen_rom_unlock(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 337 | { |
| 338 | u32 val; |
| 339 | |
| 340 | /* release semaphore2 */ |
| 341 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val); |
| 342 | |
| 343 | } |
| 344 | |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 345 | #if 0 |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 346 | static int netxen_rom_wip_poll(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 347 | { |
| 348 | long timeout = 0; |
| 349 | long wip = 1; |
| 350 | int val; |
| 351 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
| 352 | while (wip != 0) { |
| 353 | val = netxen_do_rom_rdsr(adapter); |
| 354 | wip = val & 1; |
| 355 | timeout++; |
| 356 | if (timeout > rom_max_timeout) { |
| 357 | return -1; |
| 358 | } |
| 359 | } |
| 360 | return 0; |
| 361 | } |
| 362 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 363 | static int do_rom_fast_write(struct netxen_adapter *adapter, int addr, |
| 364 | int data) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 365 | { |
| 366 | if (netxen_rom_wren(adapter)) { |
| 367 | return -1; |
| 368 | } |
| 369 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_WDATA, data); |
| 370 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
| 371 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); |
| 372 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, |
| 373 | M25P_INSTR_PP); |
| 374 | if (netxen_wait_rom_done(adapter)) { |
| 375 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
| 376 | return -1; |
| 377 | } |
| 378 | |
| 379 | return netxen_rom_wip_poll(adapter); |
| 380 | } |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 381 | #endif |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 382 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 383 | static int do_rom_fast_read(struct netxen_adapter *adapter, |
| 384 | int addr, int *valp) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 385 | { |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 386 | cond_resched(); |
Linsys Contractor Mithlesh Thukral | b58ecad | 2007-03-13 04:15:06 -0800 | [diff] [blame] | 387 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 388 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
| 389 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); |
Linsys Contractor Mithlesh Thukral | b58ecad | 2007-03-13 04:15:06 -0800 | [diff] [blame] | 390 | udelay(100); /* prevent bursting on CRB */ |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 391 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
| 392 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); |
| 393 | if (netxen_wait_rom_done(adapter)) { |
| 394 | printk("Error waiting for rom done\n"); |
| 395 | return -EIO; |
| 396 | } |
| 397 | /* reset abyte_cnt and dummy_byte_cnt */ |
| 398 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
Linsys Contractor Mithlesh Thukral | b58ecad | 2007-03-13 04:15:06 -0800 | [diff] [blame] | 399 | udelay(100); /* prevent bursting on CRB */ |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 400 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
| 401 | |
| 402 | *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); |
| 403 | return 0; |
| 404 | } |
| 405 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 406 | static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
| 407 | u8 *bytes, size_t size) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 408 | { |
| 409 | int addridx; |
| 410 | int ret = 0; |
| 411 | |
| 412 | for (addridx = addr; addridx < (addr + size); addridx += 4) { |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 413 | int v; |
| 414 | ret = do_rom_fast_read(adapter, addridx, &v); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 415 | if (ret != 0) |
| 416 | break; |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 417 | *(__le32 *)bytes = cpu_to_le32(v); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 418 | bytes += 4; |
| 419 | } |
| 420 | |
| 421 | return ret; |
| 422 | } |
| 423 | |
| 424 | int |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 425 | netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 426 | u8 *bytes, size_t size) |
| 427 | { |
| 428 | int ret; |
| 429 | |
| 430 | ret = rom_lock(adapter); |
| 431 | if (ret < 0) |
| 432 | return ret; |
| 433 | |
| 434 | ret = do_rom_fast_read_words(adapter, addr, bytes, size); |
| 435 | |
| 436 | netxen_rom_unlock(adapter); |
| 437 | return ret; |
| 438 | } |
| 439 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 440 | int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) |
| 441 | { |
| 442 | int ret; |
| 443 | |
| 444 | if (rom_lock(adapter) != 0) |
| 445 | return -EIO; |
| 446 | |
| 447 | ret = do_rom_fast_read(adapter, addr, valp); |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 448 | netxen_rom_unlock(adapter); |
| 449 | return ret; |
| 450 | } |
| 451 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 452 | #if 0 |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 453 | int netxen_rom_fast_write(struct netxen_adapter *adapter, int addr, int data) |
| 454 | { |
| 455 | int ret = 0; |
| 456 | |
| 457 | if (rom_lock(adapter) != 0) { |
| 458 | return -1; |
| 459 | } |
| 460 | ret = do_rom_fast_write(adapter, addr, data); |
| 461 | netxen_rom_unlock(adapter); |
| 462 | return ret; |
| 463 | } |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 464 | |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 465 | static int do_rom_fast_write_words(struct netxen_adapter *adapter, |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 466 | int addr, u8 *bytes, size_t size) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 467 | { |
| 468 | int addridx = addr; |
| 469 | int ret = 0; |
| 470 | |
| 471 | while (addridx < (addr + size)) { |
| 472 | int last_attempt = 0; |
| 473 | int timeout = 0; |
| 474 | int data; |
| 475 | |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 476 | data = le32_to_cpu((*(__le32*)bytes)); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 477 | ret = do_rom_fast_write(adapter, addridx, data); |
| 478 | if (ret < 0) |
| 479 | return ret; |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 480 | |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 481 | while(1) { |
| 482 | int data1; |
| 483 | |
Stephen Hemminger | f8dfdd5 | 2007-02-26 14:51:56 -0800 | [diff] [blame] | 484 | ret = do_rom_fast_read(adapter, addridx, &data1); |
| 485 | if (ret < 0) |
| 486 | return ret; |
| 487 | |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 488 | if (data1 == data) |
| 489 | break; |
| 490 | |
| 491 | if (timeout++ >= rom_write_timeout) { |
| 492 | if (last_attempt++ < 4) { |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 493 | ret = do_rom_fast_write(adapter, |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 494 | addridx, data); |
| 495 | if (ret < 0) |
| 496 | return ret; |
| 497 | } |
| 498 | else { |
| 499 | printk(KERN_INFO "Data write did not " |
| 500 | "succeed at address 0x%x\n", addridx); |
| 501 | break; |
| 502 | } |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | bytes += 4; |
| 507 | addridx += 4; |
| 508 | } |
| 509 | |
| 510 | return ret; |
| 511 | } |
| 512 | |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 513 | int netxen_rom_fast_write_words(struct netxen_adapter *adapter, int addr, |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 514 | u8 *bytes, size_t size) |
| 515 | { |
| 516 | int ret = 0; |
| 517 | |
| 518 | ret = rom_lock(adapter); |
| 519 | if (ret < 0) |
| 520 | return ret; |
| 521 | |
| 522 | ret = do_rom_fast_write_words(adapter, addr, bytes, size); |
| 523 | netxen_rom_unlock(adapter); |
| 524 | |
| 525 | return ret; |
| 526 | } |
| 527 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 528 | static int netxen_rom_wrsr(struct netxen_adapter *adapter, int data) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 529 | { |
| 530 | int ret; |
| 531 | |
| 532 | ret = netxen_rom_wren(adapter); |
| 533 | if (ret < 0) |
| 534 | return ret; |
| 535 | |
| 536 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_ROM_WDATA, data); |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 537 | netxen_crb_writelit_adapter(adapter, |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 538 | NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0x1); |
| 539 | |
| 540 | ret = netxen_wait_rom_done(adapter); |
| 541 | if (ret < 0) |
| 542 | return ret; |
| 543 | |
| 544 | return netxen_rom_wip_poll(adapter); |
| 545 | } |
| 546 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 547 | static int netxen_rom_rdsr(struct netxen_adapter *adapter) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 548 | { |
| 549 | int ret; |
| 550 | |
| 551 | ret = rom_lock(adapter); |
| 552 | if (ret < 0) |
| 553 | return ret; |
| 554 | |
| 555 | ret = netxen_do_rom_rdsr(adapter); |
| 556 | netxen_rom_unlock(adapter); |
| 557 | return ret; |
| 558 | } |
| 559 | |
| 560 | int netxen_backup_crbinit(struct netxen_adapter *adapter) |
| 561 | { |
| 562 | int ret = FLASH_SUCCESS; |
| 563 | int val; |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 564 | char *buffer = kmalloc(NETXEN_FLASH_SECTOR_SIZE, GFP_KERNEL); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 565 | |
| 566 | if (!buffer) |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 567 | return -ENOMEM; |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 568 | /* unlock sector 63 */ |
| 569 | val = netxen_rom_rdsr(adapter); |
| 570 | val = val & 0xe3; |
| 571 | ret = netxen_rom_wrsr(adapter, val); |
| 572 | if (ret != FLASH_SUCCESS) |
| 573 | goto out_kfree; |
| 574 | |
| 575 | ret = netxen_rom_wip_poll(adapter); |
| 576 | if (ret != FLASH_SUCCESS) |
| 577 | goto out_kfree; |
| 578 | |
| 579 | /* copy sector 0 to sector 63 */ |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 580 | ret = netxen_rom_fast_read_words(adapter, NETXEN_CRBINIT_START, |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 581 | buffer, NETXEN_FLASH_SECTOR_SIZE); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 582 | if (ret != FLASH_SUCCESS) |
| 583 | goto out_kfree; |
| 584 | |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 585 | ret = netxen_rom_fast_write_words(adapter, NETXEN_FIXED_START, |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 586 | buffer, NETXEN_FLASH_SECTOR_SIZE); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 587 | if (ret != FLASH_SUCCESS) |
| 588 | goto out_kfree; |
| 589 | |
| 590 | /* lock sector 63 */ |
| 591 | val = netxen_rom_rdsr(adapter); |
| 592 | if (!(val & 0x8)) { |
| 593 | val |= (0x1 << 2); |
| 594 | /* lock sector 63 */ |
| 595 | if (netxen_rom_wrsr(adapter, val) == 0) { |
| 596 | ret = netxen_rom_wip_poll(adapter); |
| 597 | if (ret != FLASH_SUCCESS) |
| 598 | goto out_kfree; |
| 599 | |
| 600 | /* lock SR writes */ |
| 601 | ret = netxen_rom_wip_poll(adapter); |
| 602 | if (ret != FLASH_SUCCESS) |
| 603 | goto out_kfree; |
| 604 | } |
| 605 | } |
| 606 | |
| 607 | out_kfree: |
| 608 | kfree(buffer); |
| 609 | return ret; |
| 610 | } |
| 611 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 612 | static int netxen_do_rom_se(struct netxen_adapter *adapter, int addr) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 613 | { |
| 614 | netxen_rom_wren(adapter); |
| 615 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
| 616 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); |
| 617 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, |
| 618 | M25P_INSTR_SE); |
| 619 | if (netxen_wait_rom_done(adapter)) { |
| 620 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
| 621 | return -1; |
| 622 | } |
| 623 | return netxen_rom_wip_poll(adapter); |
| 624 | } |
| 625 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 626 | static void check_erased_flash(struct netxen_adapter *adapter, int addr) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 627 | { |
| 628 | int i; |
| 629 | int val; |
| 630 | int count = 0, erased_errors = 0; |
| 631 | int range; |
| 632 | |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 633 | range = (addr == NETXEN_USER_START) ? |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 634 | NETXEN_FIXED_START : addr + NETXEN_FLASH_SECTOR_SIZE; |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 635 | |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 636 | for (i = addr; i < range; i += 4) { |
| 637 | netxen_rom_fast_read(adapter, i, &val); |
| 638 | if (val != 0xffffffff) |
| 639 | erased_errors++; |
| 640 | count++; |
| 641 | } |
| 642 | |
| 643 | if (erased_errors) |
| 644 | printk(KERN_INFO "0x%x out of 0x%x words fail to be erased " |
| 645 | "for sector address: %x\n", erased_errors, count, addr); |
| 646 | } |
| 647 | |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 648 | int netxen_rom_se(struct netxen_adapter *adapter, int addr) |
| 649 | { |
| 650 | int ret = 0; |
| 651 | if (rom_lock(adapter) != 0) { |
| 652 | return -1; |
| 653 | } |
| 654 | ret = netxen_do_rom_se(adapter, addr); |
| 655 | netxen_rom_unlock(adapter); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 656 | msleep(30); |
| 657 | check_erased_flash(adapter, addr); |
| 658 | |
| 659 | return ret; |
| 660 | } |
| 661 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 662 | static int netxen_flash_erase_sections(struct netxen_adapter *adapter, |
| 663 | int start, int end) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 664 | { |
| 665 | int ret = FLASH_SUCCESS; |
| 666 | int i; |
| 667 | |
| 668 | for (i = start; i < end; i++) { |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 669 | ret = netxen_rom_se(adapter, i * NETXEN_FLASH_SECTOR_SIZE); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 670 | if (ret) |
| 671 | break; |
| 672 | ret = netxen_rom_wip_poll(adapter); |
| 673 | if (ret < 0) |
| 674 | return ret; |
| 675 | } |
| 676 | |
| 677 | return ret; |
| 678 | } |
| 679 | |
| 680 | int |
| 681 | netxen_flash_erase_secondary(struct netxen_adapter *adapter) |
| 682 | { |
| 683 | int ret = FLASH_SUCCESS; |
| 684 | int start, end; |
| 685 | |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 686 | start = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; |
| 687 | end = NETXEN_USER_START / NETXEN_FLASH_SECTOR_SIZE; |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 688 | ret = netxen_flash_erase_sections(adapter, start, end); |
| 689 | |
| 690 | return ret; |
| 691 | } |
| 692 | |
| 693 | int |
| 694 | netxen_flash_erase_primary(struct netxen_adapter *adapter) |
| 695 | { |
| 696 | int ret = FLASH_SUCCESS; |
| 697 | int start, end; |
| 698 | |
Mithlesh Thukral | 0d04761 | 2007-06-07 04:36:36 -0700 | [diff] [blame] | 699 | start = NETXEN_PRIMARY_START / NETXEN_FLASH_SECTOR_SIZE; |
| 700 | end = NETXEN_SECONDARY_START / NETXEN_FLASH_SECTOR_SIZE; |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 701 | ret = netxen_flash_erase_sections(adapter, start, end); |
| 702 | |
| 703 | return ret; |
| 704 | } |
| 705 | |
Amit S. Kale | e45d9ab | 2007-02-09 05:49:08 -0800 | [diff] [blame] | 706 | void netxen_halt_pegs(struct netxen_adapter *adapter) |
| 707 | { |
| 708 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c, 1); |
| 709 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c, 1); |
| 710 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c, 1); |
| 711 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c, 1); |
| 712 | } |
| 713 | |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 714 | int netxen_flash_unlock(struct netxen_adapter *adapter) |
| 715 | { |
| 716 | int ret = 0; |
| 717 | |
| 718 | ret = netxen_rom_wrsr(adapter, 0); |
| 719 | if (ret < 0) |
| 720 | return ret; |
| 721 | |
| 722 | ret = netxen_rom_wren(adapter); |
| 723 | if (ret < 0) |
| 724 | return ret; |
| 725 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 726 | return ret; |
| 727 | } |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 728 | #endif /* 0 */ |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 729 | |
| 730 | #define NETXEN_BOARDTYPE 0x4008 |
| 731 | #define NETXEN_BOARDNUM 0x400c |
| 732 | #define NETXEN_CHIPNUM 0x4010 |
| 733 | #define NETXEN_ROMBUS_RESET 0xFFFFFFFF |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 734 | |
| 735 | int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) |
| 736 | { |
Dhananjay Phadke | dcd56fd | 2008-06-15 22:59:45 -0700 | [diff] [blame] | 737 | int addr, val; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 738 | int n, i; |
| 739 | int init_delay = 0; |
| 740 | struct crb_addr_pair *buf; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 741 | u32 off; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 742 | |
| 743 | /* resetall */ |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 744 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, |
| 745 | NETXEN_ROMBUS_RESET); |
| 746 | |
| 747 | if (verbose) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 748 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) |
| 749 | printk("P2 ROM board type: 0x%08x\n", val); |
| 750 | else |
| 751 | printk("Could not read board type\n"); |
| 752 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) |
| 753 | printk("P2 ROM board num: 0x%08x\n", val); |
| 754 | else |
| 755 | printk("Could not read board number\n"); |
| 756 | if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) |
| 757 | printk("P2 ROM chip num: 0x%08x\n", val); |
| 758 | else |
| 759 | printk("Could not read chip number\n"); |
| 760 | } |
| 761 | |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 762 | if (netxen_rom_fast_read(adapter, 0, &n) == 0 && (n & 0x80000000)) { |
| 763 | n &= ~0x80000000; |
| 764 | if (n < 0x400) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 765 | if (verbose) |
| 766 | printk("%s: %d CRB init values found" |
| 767 | " in ROM.\n", netxen_nic_driver_name, n); |
| 768 | } else { |
| 769 | printk("%s:n=0x%x Error! NetXen card flash not" |
| 770 | " initialized.\n", __FUNCTION__, n); |
| 771 | return -EIO; |
| 772 | } |
| 773 | buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); |
| 774 | if (buf == NULL) { |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 775 | printk("%s: netxen_pinit_from_rom: Unable to calloc " |
| 776 | "memory.\n", netxen_nic_driver_name); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 777 | return -ENOMEM; |
| 778 | } |
| 779 | for (i = 0; i < n; i++) { |
| 780 | if (netxen_rom_fast_read(adapter, 8 * i + 4, &val) != 0 |
| 781 | || netxen_rom_fast_read(adapter, 8 * i + 8, |
| 782 | &addr) != 0) |
| 783 | return -EIO; |
| 784 | |
| 785 | buf[i].addr = addr; |
| 786 | buf[i].data = val; |
| 787 | |
| 788 | if (verbose) |
| 789 | printk("%s: PCI: 0x%08x == 0x%08x\n", |
| 790 | netxen_nic_driver_name, (unsigned int) |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 791 | netxen_decode_crb_addr(addr), val); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 792 | } |
| 793 | for (i = 0; i < n; i++) { |
| 794 | |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 795 | off = netxen_decode_crb_addr(buf[i].addr); |
Amit S. Kale | 1fcca1a | 2007-02-05 07:35:26 -0800 | [diff] [blame] | 796 | if (off == NETXEN_ADDR_ERROR) { |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 797 | printk(KERN_ERR"CRB init value out of range %x\n", |
Amit S. Kale | 1fcca1a | 2007-02-05 07:35:26 -0800 | [diff] [blame] | 798 | buf[i].addr); |
| 799 | continue; |
| 800 | } |
| 801 | off += NETXEN_PCI_CRBSPACE; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 802 | /* skipping cold reboot MAGIC */ |
| 803 | if (off == NETXEN_CAM_RAM(0x1fc)) |
| 804 | continue; |
| 805 | |
| 806 | /* After writing this register, HW needs time for CRB */ |
| 807 | /* to quiet down (else crb_window returns 0xffffffff) */ |
| 808 | if (off == NETXEN_ROMUSB_GLB_SW_RESET) { |
| 809 | init_delay = 1; |
| 810 | /* hold xdma in reset also */ |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 811 | buf[i].data = NETXEN_NIC_XDMA_RESET; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 812 | } |
| 813 | |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 814 | netxen_nic_hw_write_wx(adapter, off, &buf[i].data, 4); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 815 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 816 | if (init_delay == 1) { |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 817 | msleep(1000); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 818 | init_delay = 0; |
| 819 | } |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 820 | msleep(1); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 821 | } |
| 822 | kfree(buf); |
| 823 | |
| 824 | /* disable_peg_cache_all */ |
| 825 | |
| 826 | /* unreset_net_cache */ |
| 827 | netxen_nic_hw_read_wx(adapter, NETXEN_ROMUSB_GLB_SW_RESET, &val, |
| 828 | 4); |
| 829 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, |
| 830 | (val & 0xffffff0f)); |
| 831 | /* p2dn replyCount */ |
| 832 | netxen_crb_writelit_adapter(adapter, |
| 833 | NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); |
| 834 | /* disable_peg_cache 0 */ |
| 835 | netxen_crb_writelit_adapter(adapter, |
| 836 | NETXEN_CRB_PEG_NET_D + 0x4c, 8); |
| 837 | /* disable_peg_cache 1 */ |
| 838 | netxen_crb_writelit_adapter(adapter, |
| 839 | NETXEN_CRB_PEG_NET_I + 0x4c, 8); |
| 840 | |
| 841 | /* peg_clr_all */ |
| 842 | |
| 843 | /* peg_clr 0 */ |
| 844 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, |
| 845 | 0); |
| 846 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, |
| 847 | 0); |
| 848 | /* peg_clr 1 */ |
| 849 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, |
| 850 | 0); |
| 851 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, |
| 852 | 0); |
| 853 | /* peg_clr 2 */ |
| 854 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, |
| 855 | 0); |
| 856 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, |
| 857 | 0); |
| 858 | /* peg_clr 3 */ |
| 859 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, |
| 860 | 0); |
| 861 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, |
| 862 | 0); |
| 863 | } |
| 864 | return 0; |
| 865 | } |
| 866 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 867 | int netxen_initialize_adapter_offload(struct netxen_adapter *adapter) |
| 868 | { |
| 869 | uint64_t addr; |
| 870 | uint32_t hi; |
| 871 | uint32_t lo; |
| 872 | |
| 873 | adapter->dummy_dma.addr = |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 874 | pci_alloc_consistent(adapter->pdev, |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 875 | NETXEN_HOST_DUMMY_DMA_SIZE, |
| 876 | &adapter->dummy_dma.phys_addr); |
| 877 | if (adapter->dummy_dma.addr == NULL) { |
| 878 | printk("%s: ERROR: Could not allocate dummy DMA memory\n", |
| 879 | __FUNCTION__); |
| 880 | return -ENOMEM; |
| 881 | } |
| 882 | |
| 883 | addr = (uint64_t) adapter->dummy_dma.phys_addr; |
| 884 | hi = (addr >> 32) & 0xffffffff; |
| 885 | lo = addr & 0xffffffff; |
| 886 | |
| 887 | writel(hi, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI)); |
| 888 | writel(lo, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO)); |
| 889 | |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | void netxen_free_adapter_offload(struct netxen_adapter *adapter) |
| 894 | { |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 895 | int i; |
| 896 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 897 | if (adapter->dummy_dma.addr) { |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 898 | i = 100; |
| 899 | do { |
| 900 | if (dma_watchdog_shutdown_request(adapter) == 1) |
| 901 | break; |
| 902 | msleep(50); |
| 903 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
| 904 | break; |
| 905 | } while (--i); |
| 906 | |
| 907 | if (i) { |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 908 | pci_free_consistent(adapter->pdev, |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 909 | NETXEN_HOST_DUMMY_DMA_SIZE, |
| 910 | adapter->dummy_dma.addr, |
| 911 | adapter->dummy_dma.phys_addr); |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 912 | adapter->dummy_dma.addr = NULL; |
| 913 | } else { |
| 914 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", |
| 915 | adapter->netdev->name); |
| 916 | } |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 917 | } |
| 918 | } |
| 919 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 920 | int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 921 | { |
| 922 | u32 val = 0; |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 923 | int retries = 30; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 924 | |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 925 | if (!pegtune_val) { |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 926 | do { |
| 927 | val = readl(NETXEN_CRB_NORMALIZE |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 928 | (adapter, CRB_CMDPEG_STATE)); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 929 | pegtune_val = readl(NETXEN_CRB_NORMALIZE |
| 930 | (adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); |
| 931 | |
| 932 | if (val == PHAN_INITIALIZE_COMPLETE || |
| 933 | val == PHAN_INITIALIZE_ACK) |
| 934 | return 0; |
| 935 | |
| 936 | msleep(1000); |
| 937 | } while (--retries); |
| 938 | if (!retries) { |
| 939 | printk(KERN_WARNING "netxen_phantom_init: init failed, " |
| 940 | "pegtune_val=%x\n", pegtune_val); |
| 941 | return -1; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 942 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 943 | } |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 944 | |
| 945 | return 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 946 | } |
| 947 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 948 | static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 949 | { |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 950 | struct net_device *netdev = adapter->netdev; |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 951 | uint32_t temp, temp_state, temp_val; |
| 952 | int rv = 0; |
| 953 | |
| 954 | temp = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_TEMP_STATE)); |
| 955 | |
| 956 | temp_state = nx_get_temp_state(temp); |
| 957 | temp_val = nx_get_temp_val(temp); |
| 958 | |
| 959 | if (temp_state == NX_TEMP_PANIC) { |
| 960 | printk(KERN_ALERT |
| 961 | "%s: Device temperature %d degrees C exceeds" |
| 962 | " maximum allowed. Hardware has been shut down.\n", |
| 963 | netxen_nic_driver_name, temp_val); |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 964 | |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 965 | netif_carrier_off(netdev); |
| 966 | netif_stop_queue(netdev); |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 967 | rv = 1; |
| 968 | } else if (temp_state == NX_TEMP_WARN) { |
| 969 | if (adapter->temp == NX_TEMP_NORMAL) { |
| 970 | printk(KERN_ALERT |
| 971 | "%s: Device temperature %d degrees C " |
| 972 | "exceeds operating range." |
| 973 | " Immediate action needed.\n", |
| 974 | netxen_nic_driver_name, temp_val); |
| 975 | } |
| 976 | } else { |
| 977 | if (adapter->temp == NX_TEMP_WARN) { |
| 978 | printk(KERN_INFO |
| 979 | "%s: Device temperature is now %d degrees C" |
| 980 | " in normal range.\n", netxen_nic_driver_name, |
| 981 | temp_val); |
| 982 | } |
| 983 | } |
| 984 | adapter->temp = temp_state; |
| 985 | return rv; |
| 986 | } |
| 987 | |
David Howells | 6d5aefb | 2006-12-05 19:36:26 +0000 | [diff] [blame] | 988 | void netxen_watchdog_task(struct work_struct *work) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 989 | { |
David Howells | 6d5aefb | 2006-12-05 19:36:26 +0000 | [diff] [blame] | 990 | struct netxen_adapter *adapter = |
| 991 | container_of(work, struct netxen_adapter, watchdog_task); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 992 | |
Mithlesh Thukral | 6c80b18 | 2007-04-20 07:55:26 -0700 | [diff] [blame] | 993 | if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 994 | return; |
| 995 | |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 996 | if (adapter->handle_phy_intr) |
| 997 | adapter->handle_phy_intr(adapter); |
Mithlesh Thukral | c27e672 | 2007-06-11 03:30:58 -0700 | [diff] [blame] | 998 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 999 | mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); |
| 1000 | } |
| 1001 | |
| 1002 | /* |
| 1003 | * netxen_process_rcv() send the received packet to the protocol stack. |
| 1004 | * and if the number of receives exceeds RX_BUFFERS_REFILL, then we |
| 1005 | * invoke the routine to send more rx buffers to the Phantom... |
| 1006 | */ |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 1007 | static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid, |
| 1008 | struct status_desc *desc) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1009 | { |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1010 | struct pci_dev *pdev = adapter->pdev; |
| 1011 | struct net_device *netdev = adapter->netdev; |
Dhananjay Phadke | 5dc1626 | 2007-12-31 10:08:57 -0800 | [diff] [blame] | 1012 | u64 sts_data = le64_to_cpu(desc->status_desc_data); |
| 1013 | int index = netxen_get_sts_refhandle(sts_data); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1014 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); |
| 1015 | struct netxen_rx_buffer *buffer; |
| 1016 | struct sk_buff *skb; |
Dhananjay Phadke | 5dc1626 | 2007-12-31 10:08:57 -0800 | [diff] [blame] | 1017 | u32 length = netxen_get_sts_totallength(sts_data); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1018 | u32 desc_ctx; |
| 1019 | struct netxen_rcv_desc_ctx *rcv_desc; |
| 1020 | int ret; |
| 1021 | |
Dhananjay Phadke | 5dc1626 | 2007-12-31 10:08:57 -0800 | [diff] [blame] | 1022 | desc_ctx = netxen_get_sts_type(sts_data); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1023 | if (unlikely(desc_ctx >= NUM_RCV_DESC_RINGS)) { |
| 1024 | printk("%s: %s Bad Rcv descriptor ring\n", |
| 1025 | netxen_nic_driver_name, netdev->name); |
| 1026 | return; |
| 1027 | } |
| 1028 | |
| 1029 | rcv_desc = &recv_ctx->rcv_desc[desc_ctx]; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1030 | if (unlikely(index > rcv_desc->max_rx_desc_count)) { |
| 1031 | DPRINTK(ERR, "Got a buffer index:%x Max is %x\n", |
| 1032 | index, rcv_desc->max_rx_desc_count); |
| 1033 | return; |
| 1034 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1035 | buffer = &rcv_desc->rx_buf_arr[index]; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1036 | if (desc_ctx == RCV_DESC_LRO_CTXID) { |
| 1037 | buffer->lro_current_frags++; |
| 1038 | if (netxen_get_sts_desc_lro_last_frag(desc)) { |
| 1039 | buffer->lro_expected_frags = |
| 1040 | netxen_get_sts_desc_lro_cnt(desc); |
| 1041 | buffer->lro_length = length; |
| 1042 | } |
| 1043 | if (buffer->lro_current_frags != buffer->lro_expected_frags) { |
| 1044 | if (buffer->lro_expected_frags != 0) { |
Joe Perches | 5bc5142 | 2007-11-19 17:48:24 -0800 | [diff] [blame] | 1045 | printk("LRO: (refhandle:%x) recv frag. " |
| 1046 | "wait for last. flags: %x expected:%d " |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1047 | "have:%d\n", index, |
| 1048 | netxen_get_sts_desc_lro_last_frag(desc), |
| 1049 | buffer->lro_expected_frags, |
| 1050 | buffer->lro_current_frags); |
| 1051 | } |
| 1052 | return; |
| 1053 | } |
| 1054 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1055 | |
| 1056 | pci_unmap_single(pdev, buffer->dma, rcv_desc->dma_size, |
| 1057 | PCI_DMA_FROMDEVICE); |
| 1058 | |
| 1059 | skb = (struct sk_buff *)buffer->skb; |
| 1060 | |
Dhananjay Phadke | 200eef2 | 2007-09-03 10:33:35 +0530 | [diff] [blame] | 1061 | if (likely(adapter->rx_csum && |
Dhananjay Phadke | d1847a7 | 2008-03-17 19:59:51 -0700 | [diff] [blame] | 1062 | netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) { |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1063 | adapter->stats.csummed++; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1064 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
Dhananjay Phadke | 200eef2 | 2007-09-03 10:33:35 +0530 | [diff] [blame] | 1065 | } else |
| 1066 | skb->ip_summed = CHECKSUM_NONE; |
| 1067 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1068 | skb->dev = netdev; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1069 | if (desc_ctx == RCV_DESC_LRO_CTXID) { |
| 1070 | /* True length was only available on the last pkt */ |
| 1071 | skb_put(skb, buffer->lro_length); |
| 1072 | } else { |
| 1073 | skb_put(skb, length); |
| 1074 | } |
| 1075 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1076 | skb->protocol = eth_type_trans(skb, netdev); |
| 1077 | |
| 1078 | ret = netif_receive_skb(skb); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1079 | netdev->last_rx = jiffies; |
| 1080 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1081 | /* |
| 1082 | * We just consumed one buffer so post a buffer. |
| 1083 | */ |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1084 | buffer->skb = NULL; |
| 1085 | buffer->state = NETXEN_BUFFER_FREE; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1086 | buffer->lro_current_frags = 0; |
| 1087 | buffer->lro_expected_frags = 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1088 | |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1089 | adapter->stats.no_rcv++; |
| 1090 | adapter->stats.rxbytes += length; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1091 | } |
| 1092 | |
| 1093 | /* Process Receive status ring */ |
| 1094 | u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max) |
| 1095 | { |
| 1096 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctxid]); |
| 1097 | struct status_desc *desc_head = recv_ctx->rcv_status_desc_head; |
| 1098 | struct status_desc *desc; /* used to read status desc here */ |
| 1099 | u32 consumer = recv_ctx->status_rx_consumer; |
| 1100 | int count = 0, ring; |
| 1101 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1102 | while (count < max) { |
| 1103 | desc = &desc_head[consumer]; |
Al Viro | a608ab9c | 2007-01-02 10:39:10 +0000 | [diff] [blame] | 1104 | if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) { |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1105 | DPRINTK(ERR, "desc %p ownedby %x\n", desc, |
| 1106 | netxen_get_sts_owner(desc)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1107 | break; |
| 1108 | } |
| 1109 | netxen_process_rcv(adapter, ctxid, desc); |
Al Viro | a608ab9c | 2007-01-02 10:39:10 +0000 | [diff] [blame] | 1110 | netxen_set_sts_owner(desc, STATUS_OWNER_PHANTOM); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1111 | consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1); |
| 1112 | count++; |
| 1113 | } |
Jeff Garzik | f0c88f9 | 2008-03-25 23:53:24 -0400 | [diff] [blame] | 1114 | for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) |
Dhananjay Phadke | 05aaa02 | 2008-03-17 19:59:49 -0700 | [diff] [blame] | 1115 | netxen_post_rx_buffers_nodb(adapter, ctxid, ring); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1116 | |
| 1117 | /* update the consumer index in phantom */ |
| 1118 | if (count) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1119 | recv_ctx->status_rx_consumer = consumer; |
| 1120 | |
| 1121 | /* Window = 1 */ |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 1122 | writel(consumer, NETXEN_CRB_NORMALIZE(adapter, |
| 1123 | recv_ctx->crb_sts_consumer)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1124 | } |
| 1125 | |
| 1126 | return count; |
| 1127 | } |
| 1128 | |
| 1129 | /* Process Command status ring */ |
Dhananjay Phadke | 05aaa02 | 2008-03-17 19:59:49 -0700 | [diff] [blame] | 1130 | int netxen_process_cmd_ring(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1131 | { |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1132 | u32 last_consumer, consumer; |
| 1133 | int count = 0, i; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1134 | struct netxen_cmd_buffer *buffer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1135 | struct pci_dev *pdev = adapter->pdev; |
| 1136 | struct net_device *netdev = adapter->netdev; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1137 | struct netxen_skb_frag *frag; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1138 | int done = 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1139 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1140 | last_consumer = adapter->last_cmd_consumer; |
Amit S. Kale | 9b41011 | 2007-02-09 05:45:18 -0800 | [diff] [blame] | 1141 | consumer = le32_to_cpu(*(adapter->cmd_consumer)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1142 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1143 | while (last_consumer != consumer) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1144 | buffer = &adapter->cmd_buf_arr[last_consumer]; |
dhananjay@netxen.com | 53a01e0 | 2007-12-26 10:23:58 -0800 | [diff] [blame] | 1145 | if (buffer->skb) { |
| 1146 | frag = &buffer->frag_array[0]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1147 | pci_unmap_single(pdev, frag->dma, frag->length, |
| 1148 | PCI_DMA_TODEVICE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1149 | frag->dma = 0ULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1150 | for (i = 1; i < buffer->frag_count; i++) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1151 | frag++; /* Get the next frag */ |
| 1152 | pci_unmap_page(pdev, frag->dma, frag->length, |
| 1153 | PCI_DMA_TODEVICE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1154 | frag->dma = 0ULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1155 | } |
| 1156 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1157 | adapter->stats.xmitfinished++; |
dhananjay@netxen.com | 53a01e0 | 2007-12-26 10:23:58 -0800 | [diff] [blame] | 1158 | dev_kfree_skb_any(buffer->skb); |
| 1159 | buffer->skb = NULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1160 | } |
| 1161 | |
| 1162 | last_consumer = get_next_index(last_consumer, |
| 1163 | adapter->max_tx_desc_count); |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1164 | if (++count >= MAX_STATUS_HANDLE) |
| 1165 | break; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1166 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1167 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1168 | if (count) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1169 | adapter->last_cmd_consumer = last_consumer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1170 | smp_mb(); |
| 1171 | if (netif_queue_stopped(netdev) && netif_running(netdev)) { |
| 1172 | netif_tx_lock(netdev); |
| 1173 | netif_wake_queue(netdev); |
| 1174 | smp_mb(); |
| 1175 | netif_tx_unlock(netdev); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1176 | } |
| 1177 | } |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1178 | /* |
| 1179 | * If everything is freed up to consumer then check if the ring is full |
| 1180 | * If the ring is full then check if more needs to be freed and |
| 1181 | * schedule the call back again. |
| 1182 | * |
| 1183 | * This happens when there are 2 CPUs. One could be freeing and the |
| 1184 | * other filling it. If the ring is full when we get out of here and |
| 1185 | * the card has already interrupted the host then the host can miss the |
| 1186 | * interrupt. |
| 1187 | * |
| 1188 | * There is still a possible race condition and the host could miss an |
| 1189 | * interrupt. The card has to take care of this. |
| 1190 | */ |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1191 | consumer = le32_to_cpu(*(adapter->cmd_consumer)); |
| 1192 | done = (last_consumer == consumer); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1193 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1194 | return (done); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1195 | } |
| 1196 | |
| 1197 | /* |
| 1198 | * netxen_post_rx_buffers puts buffer in the Phantom memory |
| 1199 | */ |
| 1200 | void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid) |
| 1201 | { |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 1202 | struct pci_dev *pdev = adapter->pdev; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1203 | struct sk_buff *skb; |
| 1204 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); |
| 1205 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1206 | uint producer; |
| 1207 | struct rcv_desc *pdesc; |
| 1208 | struct netxen_rx_buffer *buffer; |
| 1209 | int count = 0; |
| 1210 | int index = 0; |
| 1211 | netxen_ctx_msg msg = 0; |
| 1212 | dma_addr_t dma; |
| 1213 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1214 | rcv_desc = &recv_ctx->rcv_desc[ringid]; |
| 1215 | |
| 1216 | producer = rcv_desc->producer; |
| 1217 | index = rcv_desc->begin_alloc; |
| 1218 | buffer = &rcv_desc->rx_buf_arr[index]; |
| 1219 | /* We can start writing rx descriptors into the phantom memory. */ |
| 1220 | while (buffer->state == NETXEN_BUFFER_FREE) { |
| 1221 | skb = dev_alloc_skb(rcv_desc->skb_size); |
| 1222 | if (unlikely(!skb)) { |
| 1223 | /* |
| 1224 | * TODO |
| 1225 | * We need to schedule the posting of buffers to the pegs. |
| 1226 | */ |
| 1227 | rcv_desc->begin_alloc = index; |
| 1228 | DPRINTK(ERR, "netxen_post_rx_buffers: " |
| 1229 | " allocated only %d buffers\n", count); |
| 1230 | break; |
| 1231 | } |
| 1232 | |
| 1233 | count++; /* now there should be no failure */ |
| 1234 | pdesc = &rcv_desc->desc_head[producer]; |
| 1235 | |
| 1236 | #if defined(XGB_DEBUG) |
| 1237 | *(unsigned long *)(skb->head) = 0xc0debabe; |
| 1238 | if (skb_is_nonlinear(skb)) { |
| 1239 | printk("Allocated SKB @%p is nonlinear\n"); |
| 1240 | } |
| 1241 | #endif |
| 1242 | skb_reserve(skb, 2); |
| 1243 | /* This will be setup when we receive the |
| 1244 | * buffer after it has been filled FSL TBD TBD |
| 1245 | * skb->dev = netdev; |
| 1246 | */ |
| 1247 | dma = pci_map_single(pdev, skb->data, rcv_desc->dma_size, |
| 1248 | PCI_DMA_FROMDEVICE); |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1249 | pdesc->addr_buffer = cpu_to_le64(dma); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1250 | buffer->skb = skb; |
| 1251 | buffer->state = NETXEN_BUFFER_BUSY; |
| 1252 | buffer->dma = dma; |
| 1253 | /* make a rcv descriptor */ |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1254 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
| 1255 | pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1256 | DPRINTK(INFO, "done writing descripter\n"); |
| 1257 | producer = |
| 1258 | get_next_index(producer, rcv_desc->max_rx_desc_count); |
| 1259 | index = get_next_index(index, rcv_desc->max_rx_desc_count); |
| 1260 | buffer = &rcv_desc->rx_buf_arr[index]; |
| 1261 | } |
| 1262 | /* if we did allocate buffers, then write the count to Phantom */ |
| 1263 | if (count) { |
| 1264 | rcv_desc->begin_alloc = index; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1265 | rcv_desc->producer = producer; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1266 | /* Window = 1 */ |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 1267 | writel((producer - 1) & (rcv_desc->max_rx_desc_count - 1), |
| 1268 | NETXEN_CRB_NORMALIZE(adapter, |
| 1269 | rcv_desc->crb_rcv_producer)); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1270 | /* |
| 1271 | * Write a doorbell msg to tell phanmon of change in |
| 1272 | * receive ring producer |
| 1273 | */ |
| 1274 | netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); |
| 1275 | netxen_set_msg_privid(msg); |
| 1276 | netxen_set_msg_count(msg, |
| 1277 | ((producer - |
| 1278 | 1) & (rcv_desc-> |
| 1279 | max_rx_desc_count - 1))); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1280 | netxen_set_msg_ctxid(msg, adapter->portnum); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1281 | netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); |
| 1282 | writel(msg, |
| 1283 | DB_NORMALIZE(adapter, |
| 1284 | NETXEN_RCV_PRODUCER_OFFSET)); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1285 | } |
| 1286 | } |
| 1287 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 1288 | static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
| 1289 | uint32_t ctx, uint32_t ringid) |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1290 | { |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 1291 | struct pci_dev *pdev = adapter->pdev; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1292 | struct sk_buff *skb; |
| 1293 | struct netxen_recv_context *recv_ctx = &(adapter->recv_ctx[ctx]); |
| 1294 | struct netxen_rcv_desc_ctx *rcv_desc = NULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1295 | u32 producer; |
| 1296 | struct rcv_desc *pdesc; |
| 1297 | struct netxen_rx_buffer *buffer; |
| 1298 | int count = 0; |
| 1299 | int index = 0; |
| 1300 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1301 | rcv_desc = &recv_ctx->rcv_desc[ringid]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1302 | |
| 1303 | producer = rcv_desc->producer; |
| 1304 | index = rcv_desc->begin_alloc; |
| 1305 | buffer = &rcv_desc->rx_buf_arr[index]; |
| 1306 | /* We can start writing rx descriptors into the phantom memory. */ |
| 1307 | while (buffer->state == NETXEN_BUFFER_FREE) { |
| 1308 | skb = dev_alloc_skb(rcv_desc->skb_size); |
| 1309 | if (unlikely(!skb)) { |
| 1310 | /* |
| 1311 | * We need to schedule the posting of buffers to the pegs. |
| 1312 | */ |
| 1313 | rcv_desc->begin_alloc = index; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1314 | DPRINTK(ERR, "netxen_post_rx_buffers_nodb: " |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1315 | " allocated only %d buffers\n", count); |
| 1316 | break; |
| 1317 | } |
| 1318 | count++; /* now there should be no failure */ |
| 1319 | pdesc = &rcv_desc->desc_head[producer]; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1320 | skb_reserve(skb, 2); |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 1321 | /* |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1322 | * This will be setup when we receive the |
| 1323 | * buffer after it has been filled |
| 1324 | * skb->dev = netdev; |
| 1325 | */ |
| 1326 | buffer->skb = skb; |
| 1327 | buffer->state = NETXEN_BUFFER_BUSY; |
| 1328 | buffer->dma = pci_map_single(pdev, skb->data, |
| 1329 | rcv_desc->dma_size, |
| 1330 | PCI_DMA_FROMDEVICE); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1331 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1332 | /* make a rcv descriptor */ |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1333 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
Al Viro | a608ab9c | 2007-01-02 10:39:10 +0000 | [diff] [blame] | 1334 | pdesc->buffer_length = cpu_to_le32(rcv_desc->dma_size); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1335 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1336 | producer = |
| 1337 | get_next_index(producer, rcv_desc->max_rx_desc_count); |
| 1338 | index = get_next_index(index, rcv_desc->max_rx_desc_count); |
| 1339 | buffer = &rcv_desc->rx_buf_arr[index]; |
| 1340 | } |
| 1341 | |
| 1342 | /* if we did allocate buffers, then write the count to Phantom */ |
| 1343 | if (count) { |
| 1344 | rcv_desc->begin_alloc = index; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1345 | rcv_desc->producer = producer; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1346 | /* Window = 1 */ |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 1347 | writel((producer - 1) & (rcv_desc->max_rx_desc_count - 1), |
| 1348 | NETXEN_CRB_NORMALIZE(adapter, |
| 1349 | rcv_desc->crb_rcv_producer)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1350 | wmb(); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1351 | } |
| 1352 | } |
| 1353 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1354 | void netxen_nic_clear_stats(struct netxen_adapter *adapter) |
| 1355 | { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1356 | memset(&adapter->stats, 0, sizeof(adapter->stats)); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1357 | return; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1358 | } |
| 1359 | |