Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1 | /* |
Dhananjay Phadke | 5d242f1 | 2009-02-25 15:57:56 +0000 | [diff] [blame] | 2 | * Copyright (C) 2003 - 2009 NetXen, Inc. |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 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 |
Dhananjay Phadke | 5d242f1 | 2009-02-25 15:57:56 +0000 | [diff] [blame] | 25 | * NetXen Inc, |
| 26 | * 18922 Forge Drive |
| 27 | * Cupertino, CA 95014-0701 |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 28 | * |
| 29 | */ |
| 30 | |
| 31 | #include <linux/netdevice.h> |
| 32 | #include <linux/delay.h> |
| 33 | #include "netxen_nic.h" |
| 34 | #include "netxen_nic_hw.h" |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 35 | #include "netxen_nic_phan_reg.h" |
| 36 | |
| 37 | struct crb_addr_pair { |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 38 | u32 addr; |
| 39 | u32 data; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 40 | }; |
| 41 | |
| 42 | #define NETXEN_MAX_CRB_XFORM 60 |
| 43 | static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM]; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 44 | #define NETXEN_ADDR_ERROR (0xffffffff) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 45 | |
| 46 | #define crb_addr_transform(name) \ |
| 47 | crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \ |
| 48 | NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20 |
| 49 | |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 50 | #define NETXEN_NIC_XDMA_RESET 0x8000ff |
| 51 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 52 | static void |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 53 | netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
| 54 | struct nx_host_rds_ring *rds_ring); |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 55 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 56 | static void crb_addr_transform_setup(void) |
| 57 | { |
| 58 | crb_addr_transform(XDMA); |
| 59 | crb_addr_transform(TIMR); |
| 60 | crb_addr_transform(SRE); |
| 61 | crb_addr_transform(SQN3); |
| 62 | crb_addr_transform(SQN2); |
| 63 | crb_addr_transform(SQN1); |
| 64 | crb_addr_transform(SQN0); |
| 65 | crb_addr_transform(SQS3); |
| 66 | crb_addr_transform(SQS2); |
| 67 | crb_addr_transform(SQS1); |
| 68 | crb_addr_transform(SQS0); |
| 69 | crb_addr_transform(RPMX7); |
| 70 | crb_addr_transform(RPMX6); |
| 71 | crb_addr_transform(RPMX5); |
| 72 | crb_addr_transform(RPMX4); |
| 73 | crb_addr_transform(RPMX3); |
| 74 | crb_addr_transform(RPMX2); |
| 75 | crb_addr_transform(RPMX1); |
| 76 | crb_addr_transform(RPMX0); |
| 77 | crb_addr_transform(ROMUSB); |
| 78 | crb_addr_transform(SN); |
| 79 | crb_addr_transform(QMN); |
| 80 | crb_addr_transform(QMS); |
| 81 | crb_addr_transform(PGNI); |
| 82 | crb_addr_transform(PGND); |
| 83 | crb_addr_transform(PGN3); |
| 84 | crb_addr_transform(PGN2); |
| 85 | crb_addr_transform(PGN1); |
| 86 | crb_addr_transform(PGN0); |
| 87 | crb_addr_transform(PGSI); |
| 88 | crb_addr_transform(PGSD); |
| 89 | crb_addr_transform(PGS3); |
| 90 | crb_addr_transform(PGS2); |
| 91 | crb_addr_transform(PGS1); |
| 92 | crb_addr_transform(PGS0); |
| 93 | crb_addr_transform(PS); |
| 94 | crb_addr_transform(PH); |
| 95 | crb_addr_transform(NIU); |
| 96 | crb_addr_transform(I2Q); |
| 97 | crb_addr_transform(EG); |
| 98 | crb_addr_transform(MN); |
| 99 | crb_addr_transform(MS); |
| 100 | crb_addr_transform(CAS2); |
| 101 | crb_addr_transform(CAS1); |
| 102 | crb_addr_transform(CAS0); |
| 103 | crb_addr_transform(CAM); |
| 104 | crb_addr_transform(C2C1); |
| 105 | crb_addr_transform(C2C0); |
Amit S. Kale | 1fcca1a | 2007-02-05 07:35:26 -0800 | [diff] [blame] | 106 | crb_addr_transform(SMB); |
Dhananjay Phadke | e4c93c8 | 2008-07-21 19:44:02 -0700 | [diff] [blame] | 107 | crb_addr_transform(OCM0); |
| 108 | crb_addr_transform(I2C0); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | int netxen_init_firmware(struct netxen_adapter *adapter) |
| 112 | { |
| 113 | u32 state = 0, loops = 0, err = 0; |
| 114 | |
| 115 | /* Window 1 call */ |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 116 | state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 117 | |
| 118 | if (state == PHAN_INITIALIZE_ACK) |
| 119 | return 0; |
| 120 | |
| 121 | while (state != PHAN_INITIALIZE_COMPLETE && loops < 2000) { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 122 | msleep(1); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 123 | /* Window 1 call */ |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 124 | state = adapter->pci_read_normalize(adapter, CRB_CMDPEG_STATE); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 125 | |
| 126 | loops++; |
| 127 | } |
| 128 | if (loops >= 2000) { |
| 129 | printk(KERN_ERR "Cmd Peg initialization not complete:%x.\n", |
| 130 | state); |
| 131 | err = -EIO; |
| 132 | return err; |
| 133 | } |
| 134 | /* Window 1 call */ |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 135 | adapter->pci_write_normalize(adapter, |
| 136 | CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); |
| 137 | adapter->pci_write_normalize(adapter, |
| 138 | CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC); |
| 139 | adapter->pci_write_normalize(adapter, |
| 140 | CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); |
| 141 | adapter->pci_write_normalize(adapter, |
| 142 | CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 143 | |
| 144 | return err; |
| 145 | } |
| 146 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 147 | void netxen_release_rx_buffers(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 148 | { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 149 | struct netxen_recv_context *recv_ctx; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 150 | struct nx_host_rds_ring *rds_ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 151 | struct netxen_rx_buffer *rx_buf; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 152 | int i, ring; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 153 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 154 | recv_ctx = &adapter->recv_ctx; |
| 155 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 156 | rds_ring = &recv_ctx->rds_rings[ring]; |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 157 | for (i = 0; i < rds_ring->num_desc; ++i) { |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 158 | rx_buf = &(rds_ring->rx_buf_arr[i]); |
| 159 | if (rx_buf->state == NETXEN_BUFFER_FREE) |
| 160 | continue; |
| 161 | pci_unmap_single(adapter->pdev, |
| 162 | rx_buf->dma, |
| 163 | rds_ring->dma_size, |
| 164 | PCI_DMA_FROMDEVICE); |
| 165 | if (rx_buf->skb != NULL) |
| 166 | dev_kfree_skb_any(rx_buf->skb); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 167 | } |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | void netxen_release_tx_buffers(struct netxen_adapter *adapter) |
| 172 | { |
| 173 | struct netxen_cmd_buffer *cmd_buf; |
| 174 | struct netxen_skb_frag *buffrag; |
| 175 | int i, j; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 176 | struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 177 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 178 | cmd_buf = tx_ring->cmd_buf_arr; |
| 179 | for (i = 0; i < tx_ring->num_desc; i++) { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 180 | buffrag = cmd_buf->frag_array; |
| 181 | if (buffrag->dma) { |
| 182 | pci_unmap_single(adapter->pdev, buffrag->dma, |
| 183 | buffrag->length, PCI_DMA_TODEVICE); |
| 184 | buffrag->dma = 0ULL; |
| 185 | } |
| 186 | for (j = 0; j < cmd_buf->frag_count; j++) { |
| 187 | buffrag++; |
| 188 | if (buffrag->dma) { |
| 189 | pci_unmap_page(adapter->pdev, buffrag->dma, |
| 190 | buffrag->length, |
| 191 | PCI_DMA_TODEVICE); |
| 192 | buffrag->dma = 0ULL; |
| 193 | } |
| 194 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 195 | if (cmd_buf->skb) { |
| 196 | dev_kfree_skb_any(cmd_buf->skb); |
| 197 | cmd_buf->skb = NULL; |
| 198 | } |
| 199 | cmd_buf++; |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | void netxen_free_sw_resources(struct netxen_adapter *adapter) |
| 204 | { |
| 205 | struct netxen_recv_context *recv_ctx; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 206 | struct nx_host_rds_ring *rds_ring; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 207 | struct nx_host_tx_ring *tx_ring; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 208 | int ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 209 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 210 | recv_ctx = &adapter->recv_ctx; |
| 211 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 212 | rds_ring = &recv_ctx->rds_rings[ring]; |
| 213 | if (rds_ring->rx_buf_arr) { |
| 214 | vfree(rds_ring->rx_buf_arr); |
| 215 | rds_ring->rx_buf_arr = NULL; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 216 | } |
| 217 | } |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 218 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 219 | tx_ring = &adapter->tx_ring; |
| 220 | if (tx_ring->cmd_buf_arr) |
| 221 | vfree(tx_ring->cmd_buf_arr); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 222 | return; |
| 223 | } |
| 224 | |
| 225 | int netxen_alloc_sw_resources(struct netxen_adapter *adapter) |
| 226 | { |
| 227 | struct netxen_recv_context *recv_ctx; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 228 | struct nx_host_rds_ring *rds_ring; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 229 | struct nx_host_sds_ring *sds_ring; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 230 | struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 231 | struct netxen_rx_buffer *rx_buf; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 232 | int ring, i, num_rx_bufs; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 233 | |
| 234 | struct netxen_cmd_buffer *cmd_buf_arr; |
| 235 | struct net_device *netdev = adapter->netdev; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 236 | struct pci_dev *pdev = adapter->pdev; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 237 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 238 | tx_ring->num_desc = adapter->num_txd; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 239 | cmd_buf_arr = |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 240 | (struct netxen_cmd_buffer *)vmalloc(TX_BUFF_RINGSIZE(tx_ring)); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 241 | if (cmd_buf_arr == NULL) { |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 242 | dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n", |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 243 | netdev->name); |
| 244 | return -ENOMEM; |
| 245 | } |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 246 | memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring)); |
| 247 | tx_ring->cmd_buf_arr = cmd_buf_arr; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 248 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 249 | recv_ctx = &adapter->recv_ctx; |
| 250 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 251 | rds_ring = &recv_ctx->rds_rings[ring]; |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 252 | switch (ring) { |
| 253 | case RCV_RING_NORMAL: |
| 254 | rds_ring->num_desc = adapter->num_rxd; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 255 | if (adapter->ahw.cut_through) { |
| 256 | rds_ring->dma_size = |
| 257 | NX_CT_DEFAULT_RX_BUF_LEN; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 258 | rds_ring->skb_size = |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 259 | NX_CT_DEFAULT_RX_BUF_LEN; |
| 260 | } else { |
| 261 | rds_ring->dma_size = RX_DMA_MAP_LEN; |
| 262 | rds_ring->skb_size = |
| 263 | MAX_RX_BUFFER_LENGTH; |
| 264 | } |
| 265 | break; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 266 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 267 | case RCV_RING_JUMBO: |
| 268 | rds_ring->num_desc = adapter->num_jumbo_rxd; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 269 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| 270 | rds_ring->dma_size = |
| 271 | NX_P3_RX_JUMBO_BUF_MAX_LEN; |
| 272 | else |
| 273 | rds_ring->dma_size = |
| 274 | NX_P2_RX_JUMBO_BUF_MAX_LEN; |
| 275 | rds_ring->skb_size = |
| 276 | rds_ring->dma_size + NET_IP_ALIGN; |
| 277 | break; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 278 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 279 | case RCV_RING_LRO: |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 280 | rds_ring->num_desc = adapter->num_lro_rxd; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 281 | rds_ring->dma_size = RX_LRO_DMA_MAP_LEN; |
| 282 | rds_ring->skb_size = MAX_RX_LRO_BUFFER_LENGTH; |
| 283 | break; |
| 284 | |
| 285 | } |
| 286 | rds_ring->rx_buf_arr = (struct netxen_rx_buffer *) |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 287 | vmalloc(RCV_BUFF_RINGSIZE(rds_ring)); |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 288 | if (rds_ring->rx_buf_arr == NULL) { |
| 289 | printk(KERN_ERR "%s: Failed to allocate " |
| 290 | "rx buffer ring %d\n", |
| 291 | netdev->name, ring); |
| 292 | /* free whatever was already allocated */ |
| 293 | goto err_out; |
| 294 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 295 | memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring)); |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 296 | INIT_LIST_HEAD(&rds_ring->free_list); |
| 297 | /* |
| 298 | * Now go through all of them, set reference handles |
| 299 | * and put them in the queues. |
| 300 | */ |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 301 | num_rx_bufs = rds_ring->num_desc; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 302 | rx_buf = rds_ring->rx_buf_arr; |
| 303 | for (i = 0; i < num_rx_bufs; i++) { |
| 304 | list_add_tail(&rx_buf->list, |
| 305 | &rds_ring->free_list); |
| 306 | rx_buf->ref_handle = i; |
| 307 | rx_buf->state = NETXEN_BUFFER_FREE; |
| 308 | rx_buf++; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 309 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 310 | spin_lock_init(&rds_ring->lock); |
| 311 | } |
| 312 | |
| 313 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| 314 | sds_ring = &recv_ctx->sds_rings[ring]; |
| 315 | sds_ring->irq = adapter->msix_entries[ring].vector; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 316 | sds_ring->adapter = adapter; |
| 317 | sds_ring->num_desc = adapter->num_rxd; |
| 318 | |
| 319 | for (i = 0; i < NUM_RCV_DESC_RINGS; i++) |
| 320 | INIT_LIST_HEAD(&sds_ring->free_list[i]); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 321 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 322 | |
| 323 | return 0; |
| 324 | |
| 325 | err_out: |
| 326 | netxen_free_sw_resources(adapter); |
| 327 | return -ENOMEM; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 328 | } |
| 329 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 330 | void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) |
| 331 | { |
Dhananjay Phadke | 1e2d005 | 2009-03-09 08:50:56 +0000 | [diff] [blame] | 332 | switch (adapter->ahw.port_type) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 333 | case NETXEN_NIC_GBE: |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 334 | adapter->enable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 335 | netxen_niu_gbe_enable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 336 | adapter->disable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 337 | netxen_niu_gbe_disable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 338 | adapter->macaddr_set = netxen_niu_macaddr_set; |
| 339 | adapter->set_mtu = netxen_nic_set_mtu_gb; |
| 340 | adapter->set_promisc = netxen_niu_set_promiscuous_mode; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 341 | adapter->phy_read = netxen_niu_gbe_phy_read; |
| 342 | adapter->phy_write = netxen_niu_gbe_phy_write; |
Dhananjay Phadke | c9fc891 | 2008-07-21 19:44:07 -0700 | [diff] [blame] | 343 | adapter->init_port = netxen_niu_gbe_init_port; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 344 | adapter->stop_port = netxen_niu_disable_gbe_port; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 345 | break; |
| 346 | |
| 347 | case NETXEN_NIC_XGBE: |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 348 | adapter->enable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 349 | netxen_niu_xgbe_enable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 350 | adapter->disable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 351 | netxen_niu_xgbe_disable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 352 | adapter->macaddr_set = netxen_niu_xg_macaddr_set; |
| 353 | adapter->set_mtu = netxen_nic_set_mtu_xgb; |
| 354 | adapter->init_port = netxen_niu_xg_init_port; |
| 355 | adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 356 | adapter->stop_port = netxen_niu_disable_xg_port; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 357 | break; |
| 358 | |
| 359 | default: |
| 360 | break; |
| 361 | } |
Dhananjay Phadke | 9ad2764 | 2008-08-01 03:14:59 -0700 | [diff] [blame] | 362 | |
| 363 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 364 | adapter->set_mtu = nx_fw_cmd_set_mtu; |
| 365 | adapter->set_promisc = netxen_p3_nic_set_promisc; |
| 366 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | /* |
| 370 | * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB |
| 371 | * address to external PCI CRB address. |
| 372 | */ |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 373 | static u32 netxen_decode_crb_addr(u32 addr) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 374 | { |
| 375 | int i; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 376 | u32 base_addr, offset, pci_base; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 377 | |
| 378 | crb_addr_transform_setup(); |
| 379 | |
| 380 | pci_base = NETXEN_ADDR_ERROR; |
| 381 | base_addr = addr & 0xfff00000; |
| 382 | offset = addr & 0x000fffff; |
| 383 | |
| 384 | for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { |
| 385 | if (crb_addr_xform[i] == base_addr) { |
| 386 | pci_base = i << 20; |
| 387 | break; |
| 388 | } |
| 389 | } |
| 390 | if (pci_base == NETXEN_ADDR_ERROR) |
| 391 | return pci_base; |
| 392 | else |
| 393 | return (pci_base + offset); |
| 394 | } |
| 395 | |
Mithlesh Thukral | 13ba9c7 | 2007-04-20 07:53:05 -0700 | [diff] [blame] | 396 | static long rom_max_timeout = 100; |
| 397 | static long rom_lock_timeout = 10000; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 398 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 399 | static int rom_lock(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 400 | { |
| 401 | int iter; |
| 402 | u32 done = 0; |
| 403 | int timeout = 0; |
| 404 | |
| 405 | while (!done) { |
| 406 | /* acquire semaphore2 from PCI HW block */ |
| 407 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK), |
| 408 | &done); |
| 409 | if (done == 1) |
| 410 | break; |
| 411 | if (timeout >= rom_lock_timeout) |
| 412 | return -EIO; |
| 413 | |
| 414 | timeout++; |
| 415 | /* |
| 416 | * Yield CPU |
| 417 | */ |
| 418 | if (!in_atomic()) |
| 419 | schedule(); |
| 420 | else { |
| 421 | for (iter = 0; iter < 20; iter++) |
| 422 | cpu_relax(); /*This a nop instr on i386 */ |
| 423 | } |
| 424 | } |
| 425 | netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER); |
| 426 | return 0; |
| 427 | } |
| 428 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 429 | static int netxen_wait_rom_done(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 430 | { |
| 431 | long timeout = 0; |
| 432 | long done = 0; |
| 433 | |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 434 | cond_resched(); |
| 435 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 436 | while (done == 0) { |
| 437 | done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); |
| 438 | done &= 2; |
| 439 | timeout++; |
| 440 | if (timeout >= rom_max_timeout) { |
| 441 | printk("Timeout reached waiting for rom done"); |
| 442 | return -EIO; |
| 443 | } |
| 444 | } |
| 445 | return 0; |
| 446 | } |
| 447 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 448 | static void netxen_rom_unlock(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 449 | { |
| 450 | u32 val; |
| 451 | |
| 452 | /* release semaphore2 */ |
| 453 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val); |
| 454 | |
| 455 | } |
| 456 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 457 | static int do_rom_fast_read(struct netxen_adapter *adapter, |
| 458 | int addr, int *valp) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 459 | { |
| 460 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 461 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 462 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 463 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); |
| 464 | if (netxen_wait_rom_done(adapter)) { |
| 465 | printk("Error waiting for rom done\n"); |
| 466 | return -EIO; |
| 467 | } |
| 468 | /* reset abyte_cnt and dummy_byte_cnt */ |
| 469 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 470 | udelay(10); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 471 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
| 472 | |
| 473 | *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); |
| 474 | return 0; |
| 475 | } |
| 476 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 477 | static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
| 478 | u8 *bytes, size_t size) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 479 | { |
| 480 | int addridx; |
| 481 | int ret = 0; |
| 482 | |
| 483 | for (addridx = addr; addridx < (addr + size); addridx += 4) { |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 484 | int v; |
| 485 | ret = do_rom_fast_read(adapter, addridx, &v); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 486 | if (ret != 0) |
| 487 | break; |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 488 | *(__le32 *)bytes = cpu_to_le32(v); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 489 | bytes += 4; |
| 490 | } |
| 491 | |
| 492 | return ret; |
| 493 | } |
| 494 | |
| 495 | int |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 496 | netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 497 | u8 *bytes, size_t size) |
| 498 | { |
| 499 | int ret; |
| 500 | |
| 501 | ret = rom_lock(adapter); |
| 502 | if (ret < 0) |
| 503 | return ret; |
| 504 | |
| 505 | ret = do_rom_fast_read_words(adapter, addr, bytes, size); |
| 506 | |
| 507 | netxen_rom_unlock(adapter); |
| 508 | return ret; |
| 509 | } |
| 510 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 511 | int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) |
| 512 | { |
| 513 | int ret; |
| 514 | |
| 515 | if (rom_lock(adapter) != 0) |
| 516 | return -EIO; |
| 517 | |
| 518 | ret = do_rom_fast_read(adapter, addr, valp); |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 519 | netxen_rom_unlock(adapter); |
| 520 | return ret; |
| 521 | } |
| 522 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 523 | #define NETXEN_BOARDTYPE 0x4008 |
| 524 | #define NETXEN_BOARDNUM 0x400c |
| 525 | #define NETXEN_CHIPNUM 0x4010 |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 526 | |
| 527 | int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) |
| 528 | { |
Dhananjay Phadke | dcd56fd | 2008-06-15 22:59:45 -0700 | [diff] [blame] | 529 | int addr, val; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 530 | int i, n, init_delay = 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 531 | struct crb_addr_pair *buf; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 532 | unsigned offset; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 533 | u32 off; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 534 | |
| 535 | /* resetall */ |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 536 | rom_lock(adapter); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 537 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 538 | 0xffffffff); |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 539 | netxen_rom_unlock(adapter); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 540 | |
| 541 | if (verbose) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 542 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) |
| 543 | printk("P2 ROM board type: 0x%08x\n", val); |
| 544 | else |
| 545 | printk("Could not read board type\n"); |
| 546 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) |
| 547 | printk("P2 ROM board num: 0x%08x\n", val); |
| 548 | else |
| 549 | printk("Could not read board number\n"); |
| 550 | if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) |
| 551 | printk("P2 ROM chip num: 0x%08x\n", val); |
| 552 | else |
| 553 | printk("Could not read chip number\n"); |
| 554 | } |
| 555 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 556 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 557 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 558 | (n != 0xcafecafe) || |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 559 | netxen_rom_fast_read(adapter, 4, &n) != 0) { |
| 560 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " |
| 561 | "n: %08x\n", netxen_nic_driver_name, n); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 562 | return -EIO; |
| 563 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 564 | offset = n & 0xffffU; |
| 565 | n = (n >> 16) & 0xffffU; |
| 566 | } else { |
| 567 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || |
| 568 | !(n & 0x80000000)) { |
| 569 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " |
| 570 | "n: %08x\n", netxen_nic_driver_name, n); |
| 571 | return -EIO; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 572 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 573 | offset = 1; |
| 574 | n &= ~0x80000000; |
| 575 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 576 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 577 | if (n < 1024) { |
| 578 | if (verbose) |
| 579 | printk(KERN_DEBUG "%s: %d CRB init values found" |
| 580 | " in ROM.\n", netxen_nic_driver_name, n); |
| 581 | } else { |
| 582 | printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not" |
| 583 | " initialized.\n", __func__, n); |
| 584 | return -EIO; |
| 585 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 586 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 587 | buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); |
| 588 | if (buf == NULL) { |
| 589 | printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n", |
| 590 | netxen_nic_driver_name); |
| 591 | return -ENOMEM; |
| 592 | } |
| 593 | for (i = 0; i < n; i++) { |
| 594 | if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 || |
Daniel Marjamäki | 584dbe9 | 2009-01-29 08:55:56 +0000 | [diff] [blame] | 595 | netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) { |
| 596 | kfree(buf); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 597 | return -EIO; |
Daniel Marjamäki | 584dbe9 | 2009-01-29 08:55:56 +0000 | [diff] [blame] | 598 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 599 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 600 | buf[i].addr = addr; |
| 601 | buf[i].data = val; |
| 602 | |
| 603 | if (verbose) |
| 604 | printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n", |
| 605 | netxen_nic_driver_name, |
| 606 | (u32)netxen_decode_crb_addr(addr), val); |
| 607 | } |
| 608 | for (i = 0; i < n; i++) { |
| 609 | |
| 610 | off = netxen_decode_crb_addr(buf[i].addr); |
| 611 | if (off == NETXEN_ADDR_ERROR) { |
| 612 | printk(KERN_ERR"CRB init value out of range %x\n", |
Amit S. Kale | 1fcca1a | 2007-02-05 07:35:26 -0800 | [diff] [blame] | 613 | buf[i].addr); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 614 | continue; |
| 615 | } |
| 616 | off += NETXEN_PCI_CRBSPACE; |
| 617 | /* skipping cold reboot MAGIC */ |
| 618 | if (off == NETXEN_CAM_RAM(0x1fc)) |
| 619 | continue; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 620 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 621 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 622 | /* do not reset PCI */ |
| 623 | if (off == (ROMUSB_GLB + 0xbc)) |
| 624 | continue; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 625 | if (off == (ROMUSB_GLB + 0xa8)) |
| 626 | continue; |
| 627 | if (off == (ROMUSB_GLB + 0xc8)) /* core clock */ |
| 628 | continue; |
| 629 | if (off == (ROMUSB_GLB + 0x24)) /* MN clock */ |
| 630 | continue; |
| 631 | if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */ |
| 632 | continue; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 633 | if (off == (NETXEN_CRB_PEG_NET_1 + 0x18)) |
| 634 | buf[i].data = 0x1020; |
| 635 | /* skip the function enable register */ |
| 636 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION)) |
| 637 | continue; |
| 638 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2)) |
| 639 | continue; |
| 640 | if ((off & 0x0ff00000) == NETXEN_CRB_SMB) |
| 641 | continue; |
| 642 | } |
| 643 | |
| 644 | if (off == NETXEN_ADDR_ERROR) { |
| 645 | printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n", |
| 646 | netxen_nic_driver_name, buf[i].addr); |
| 647 | continue; |
| 648 | } |
| 649 | |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 650 | init_delay = 1; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 651 | /* After writing this register, HW needs time for CRB */ |
| 652 | /* to quiet down (else crb_window returns 0xffffffff) */ |
| 653 | if (off == NETXEN_ROMUSB_GLB_SW_RESET) { |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 654 | init_delay = 1000; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 655 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 656 | /* hold xdma in reset also */ |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 657 | buf[i].data = NETXEN_NIC_XDMA_RESET; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 658 | buf[i].data = 0x8000ff; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 659 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 660 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 661 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 662 | adapter->hw_write_wx(adapter, off, &buf[i].data, 4); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 663 | |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 664 | msleep(init_delay); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 665 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 666 | kfree(buf); |
| 667 | |
| 668 | /* disable_peg_cache_all */ |
| 669 | |
| 670 | /* unreset_net_cache */ |
| 671 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| 672 | adapter->hw_read_wx(adapter, |
| 673 | NETXEN_ROMUSB_GLB_SW_RESET, &val, 4); |
| 674 | netxen_crb_writelit_adapter(adapter, |
| 675 | NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f)); |
| 676 | } |
| 677 | |
| 678 | /* p2dn replyCount */ |
| 679 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); |
| 680 | /* disable_peg_cache 0 */ |
| 681 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8); |
| 682 | /* disable_peg_cache 1 */ |
| 683 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8); |
| 684 | |
| 685 | /* peg_clr_all */ |
| 686 | |
| 687 | /* peg_clr 0 */ |
| 688 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0); |
| 689 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0); |
| 690 | /* peg_clr 1 */ |
| 691 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0); |
| 692 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0); |
| 693 | /* peg_clr 2 */ |
| 694 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0); |
| 695 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0); |
| 696 | /* peg_clr 3 */ |
| 697 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0); |
| 698 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 699 | return 0; |
| 700 | } |
| 701 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 702 | int netxen_initialize_adapter_offload(struct netxen_adapter *adapter) |
| 703 | { |
| 704 | uint64_t addr; |
| 705 | uint32_t hi; |
| 706 | uint32_t lo; |
| 707 | |
| 708 | adapter->dummy_dma.addr = |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 709 | pci_alloc_consistent(adapter->pdev, |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 710 | NETXEN_HOST_DUMMY_DMA_SIZE, |
| 711 | &adapter->dummy_dma.phys_addr); |
| 712 | if (adapter->dummy_dma.addr == NULL) { |
| 713 | printk("%s: ERROR: Could not allocate dummy DMA memory\n", |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 714 | __func__); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 715 | return -ENOMEM; |
| 716 | } |
| 717 | |
| 718 | addr = (uint64_t) adapter->dummy_dma.phys_addr; |
| 719 | hi = (addr >> 32) & 0xffffffff; |
| 720 | lo = addr & 0xffffffff; |
| 721 | |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 722 | adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi); |
| 723 | adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 724 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 725 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 726 | uint32_t temp = 0; |
| 727 | adapter->hw_write_wx(adapter, CRB_HOST_DUMMY_BUF, &temp, 4); |
| 728 | } |
| 729 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 730 | return 0; |
| 731 | } |
| 732 | |
| 733 | void netxen_free_adapter_offload(struct netxen_adapter *adapter) |
| 734 | { |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 735 | int i = 100; |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 736 | |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 737 | if (!adapter->dummy_dma.addr) |
| 738 | return; |
| 739 | |
| 740 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 741 | do { |
| 742 | if (dma_watchdog_shutdown_request(adapter) == 1) |
| 743 | break; |
| 744 | msleep(50); |
| 745 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
| 746 | break; |
| 747 | } while (--i); |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 748 | } |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 749 | |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 750 | if (i) { |
| 751 | pci_free_consistent(adapter->pdev, |
| 752 | NETXEN_HOST_DUMMY_DMA_SIZE, |
| 753 | adapter->dummy_dma.addr, |
| 754 | adapter->dummy_dma.phys_addr); |
| 755 | adapter->dummy_dma.addr = NULL; |
| 756 | } else { |
| 757 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", |
| 758 | adapter->netdev->name); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 759 | } |
| 760 | } |
| 761 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 762 | int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 763 | { |
| 764 | u32 val = 0; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 765 | int retries = 60; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 766 | |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 767 | if (!pegtune_val) { |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 768 | do { |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 769 | val = adapter->pci_read_normalize(adapter, |
| 770 | CRB_CMDPEG_STATE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 771 | |
| 772 | if (val == PHAN_INITIALIZE_COMPLETE || |
| 773 | val == PHAN_INITIALIZE_ACK) |
| 774 | return 0; |
| 775 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 776 | msleep(500); |
| 777 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 778 | } while (--retries); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 779 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 780 | if (!retries) { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 781 | pegtune_val = adapter->pci_read_normalize(adapter, |
| 782 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 783 | printk(KERN_WARNING "netxen_phantom_init: init failed, " |
| 784 | "pegtune_val=%x\n", pegtune_val); |
| 785 | return -1; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 786 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 787 | } |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 788 | |
| 789 | return 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 790 | } |
| 791 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 792 | int netxen_receive_peg_ready(struct netxen_adapter *adapter) |
| 793 | { |
| 794 | u32 val = 0; |
| 795 | int retries = 2000; |
| 796 | |
| 797 | do { |
| 798 | val = adapter->pci_read_normalize(adapter, CRB_RCVPEG_STATE); |
| 799 | |
| 800 | if (val == PHAN_PEG_RCV_INITIALIZED) |
| 801 | return 0; |
| 802 | |
| 803 | msleep(10); |
| 804 | |
| 805 | } while (--retries); |
| 806 | |
| 807 | if (!retries) { |
| 808 | printk(KERN_ERR "Receive Peg initialization not " |
| 809 | "complete, state: 0x%x.\n", val); |
| 810 | return -EIO; |
| 811 | } |
| 812 | |
| 813 | return 0; |
| 814 | } |
| 815 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 816 | static int |
| 817 | netxen_alloc_rx_skb(struct netxen_adapter *adapter, |
| 818 | struct nx_host_rds_ring *rds_ring, |
| 819 | struct netxen_rx_buffer *buffer) |
| 820 | { |
| 821 | struct sk_buff *skb; |
| 822 | dma_addr_t dma; |
| 823 | struct pci_dev *pdev = adapter->pdev; |
| 824 | |
| 825 | buffer->skb = dev_alloc_skb(rds_ring->skb_size); |
| 826 | if (!buffer->skb) |
| 827 | return 1; |
| 828 | |
| 829 | skb = buffer->skb; |
| 830 | |
| 831 | if (!adapter->ahw.cut_through) |
| 832 | skb_reserve(skb, 2); |
| 833 | |
| 834 | dma = pci_map_single(pdev, skb->data, |
| 835 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); |
| 836 | |
| 837 | if (pci_dma_mapping_error(pdev, dma)) { |
| 838 | dev_kfree_skb_any(skb); |
| 839 | buffer->skb = NULL; |
| 840 | return 1; |
| 841 | } |
| 842 | |
| 843 | buffer->skb = skb; |
| 844 | buffer->dma = dma; |
| 845 | buffer->state = NETXEN_BUFFER_BUSY; |
| 846 | |
| 847 | return 0; |
| 848 | } |
| 849 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 850 | static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter, |
| 851 | struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum) |
| 852 | { |
| 853 | struct netxen_rx_buffer *buffer; |
| 854 | struct sk_buff *skb; |
| 855 | |
| 856 | buffer = &rds_ring->rx_buf_arr[index]; |
| 857 | |
| 858 | pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, |
| 859 | PCI_DMA_FROMDEVICE); |
| 860 | |
| 861 | skb = buffer->skb; |
| 862 | if (!skb) |
| 863 | goto no_skb; |
| 864 | |
| 865 | if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { |
| 866 | adapter->stats.csummed++; |
| 867 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 868 | } else |
| 869 | skb->ip_summed = CHECKSUM_NONE; |
| 870 | |
| 871 | skb->dev = adapter->netdev; |
| 872 | |
| 873 | buffer->skb = NULL; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 874 | no_skb: |
| 875 | buffer->state = NETXEN_BUFFER_FREE; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 876 | return skb; |
| 877 | } |
| 878 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 879 | static struct netxen_rx_buffer * |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 880 | netxen_process_rcv(struct netxen_adapter *adapter, |
| 881 | int ring, int index, int length, int cksum, int pkt_offset) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 882 | { |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 883 | struct net_device *netdev = adapter->netdev; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 884 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 885 | struct netxen_rx_buffer *buffer; |
| 886 | struct sk_buff *skb; |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 887 | struct nx_host_rds_ring *rds_ring = &recv_ctx->rds_rings[ring]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 888 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 889 | if (unlikely(index > rds_ring->num_desc)) |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 890 | return NULL; |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 891 | |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 892 | buffer = &rds_ring->rx_buf_arr[index]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 893 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 894 | skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum); |
| 895 | if (!skb) |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 896 | return buffer; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 897 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 898 | if (length > rds_ring->skb_size) |
| 899 | skb_put(skb, rds_ring->skb_size); |
| 900 | else |
| 901 | skb_put(skb, length); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 902 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 903 | |
| 904 | if (pkt_offset) |
| 905 | skb_pull(skb, pkt_offset); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 906 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 907 | skb->protocol = eth_type_trans(skb, netdev); |
| 908 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 909 | netif_receive_skb(skb); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 910 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 911 | adapter->stats.no_rcv++; |
| 912 | adapter->stats.rxbytes += length; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 913 | |
| 914 | return buffer; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 915 | } |
| 916 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 917 | #define netxen_merge_rx_buffers(list, head) \ |
| 918 | do { list_splice_tail_init(list, head); } while (0); |
| 919 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 920 | int |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 921 | netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 922 | { |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 923 | struct netxen_adapter *adapter = sds_ring->adapter; |
| 924 | |
| 925 | struct list_head *cur; |
| 926 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 927 | struct status_desc *desc; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 928 | struct netxen_rx_buffer *rxbuf; |
| 929 | |
| 930 | u32 consumer = sds_ring->consumer; |
| 931 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 932 | int count = 0; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 933 | u64 sts_data; |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 934 | int opcode, ring, index, length, cksum, pkt_offset; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 935 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 936 | while (count < max) { |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 937 | desc = &sds_ring->desc_head[consumer]; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 938 | sts_data = le64_to_cpu(desc->status_desc_data); |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 939 | |
| 940 | if (!(sts_data & STATUS_OWNER_HOST)) |
| 941 | break; |
| 942 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 943 | ring = netxen_get_sts_type(sts_data); |
| 944 | if (ring > RCV_RING_JUMBO) |
| 945 | continue; |
| 946 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 947 | opcode = netxen_get_sts_opcode(sts_data); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 948 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 949 | index = netxen_get_sts_refhandle(sts_data); |
| 950 | length = netxen_get_sts_totallength(sts_data); |
| 951 | cksum = netxen_get_sts_status(sts_data); |
| 952 | pkt_offset = netxen_get_sts_pkt_offset(sts_data); |
| 953 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 954 | rxbuf = netxen_process_rcv(adapter, ring, index, |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 955 | length, cksum, pkt_offset); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 956 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 957 | if (rxbuf) |
| 958 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); |
| 959 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 960 | desc->status_desc_data = cpu_to_le64(STATUS_OWNER_PHANTOM); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 961 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 962 | consumer = get_next_index(consumer, sds_ring->num_desc); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 963 | count++; |
| 964 | } |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 965 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 966 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 967 | struct nx_host_rds_ring *rds_ring = |
| 968 | &adapter->recv_ctx.rds_rings[ring]; |
| 969 | |
| 970 | if (!list_empty(&sds_ring->free_list[ring])) { |
| 971 | list_for_each(cur, &sds_ring->free_list[ring]) { |
| 972 | rxbuf = list_entry(cur, |
| 973 | struct netxen_rx_buffer, list); |
| 974 | netxen_alloc_rx_skb(adapter, rds_ring, rxbuf); |
| 975 | } |
| 976 | spin_lock(&rds_ring->lock); |
| 977 | netxen_merge_rx_buffers(&sds_ring->free_list[ring], |
| 978 | &rds_ring->free_list); |
| 979 | spin_unlock(&rds_ring->lock); |
| 980 | } |
| 981 | |
| 982 | netxen_post_rx_buffers_nodb(adapter, rds_ring); |
| 983 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 984 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 985 | if (count) { |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 986 | sds_ring->consumer = consumer; |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 987 | adapter->pci_write_normalize(adapter, |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 988 | sds_ring->crb_sts_consumer, consumer); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | return count; |
| 992 | } |
| 993 | |
| 994 | /* Process Command status ring */ |
Dhananjay Phadke | 05aaa02 | 2008-03-17 19:59:49 -0700 | [diff] [blame] | 995 | int netxen_process_cmd_ring(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 996 | { |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 997 | u32 sw_consumer, hw_consumer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 998 | int count = 0, i; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 999 | struct netxen_cmd_buffer *buffer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1000 | struct pci_dev *pdev = adapter->pdev; |
| 1001 | struct net_device *netdev = adapter->netdev; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1002 | struct netxen_skb_frag *frag; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1003 | int done = 0; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 1004 | struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1005 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1006 | if (!spin_trylock(&adapter->tx_clean_lock)) |
| 1007 | return 1; |
| 1008 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 1009 | sw_consumer = tx_ring->sw_consumer; |
| 1010 | barrier(); /* hw_consumer can change underneath */ |
| 1011 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1012 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 1013 | while (sw_consumer != hw_consumer) { |
| 1014 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; |
dhananjay@netxen.com | 53a01e0 | 2007-12-26 10:23:58 -0800 | [diff] [blame] | 1015 | if (buffer->skb) { |
| 1016 | frag = &buffer->frag_array[0]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1017 | pci_unmap_single(pdev, frag->dma, frag->length, |
| 1018 | PCI_DMA_TODEVICE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1019 | frag->dma = 0ULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1020 | for (i = 1; i < buffer->frag_count; i++) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1021 | frag++; /* Get the next frag */ |
| 1022 | pci_unmap_page(pdev, frag->dma, frag->length, |
| 1023 | PCI_DMA_TODEVICE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1024 | frag->dma = 0ULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1025 | } |
| 1026 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1027 | adapter->stats.xmitfinished++; |
dhananjay@netxen.com | 53a01e0 | 2007-12-26 10:23:58 -0800 | [diff] [blame] | 1028 | dev_kfree_skb_any(buffer->skb); |
| 1029 | buffer->skb = NULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1030 | } |
| 1031 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 1032 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1033 | if (++count >= MAX_STATUS_HANDLE) |
| 1034 | break; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1035 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1036 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1037 | if (count) { |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 1038 | tx_ring->sw_consumer = sw_consumer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1039 | smp_mb(); |
| 1040 | if (netif_queue_stopped(netdev) && netif_running(netdev)) { |
| 1041 | netif_tx_lock(netdev); |
| 1042 | netif_wake_queue(netdev); |
| 1043 | smp_mb(); |
| 1044 | netif_tx_unlock(netdev); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1045 | } |
| 1046 | } |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1047 | /* |
| 1048 | * If everything is freed up to consumer then check if the ring is full |
| 1049 | * If the ring is full then check if more needs to be freed and |
| 1050 | * schedule the call back again. |
| 1051 | * |
| 1052 | * This happens when there are 2 CPUs. One could be freeing and the |
| 1053 | * other filling it. If the ring is full when we get out of here and |
| 1054 | * the card has already interrupted the host then the host can miss the |
| 1055 | * interrupt. |
| 1056 | * |
| 1057 | * There is still a possible race condition and the host could miss an |
| 1058 | * interrupt. The card has to take care of this. |
| 1059 | */ |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame^] | 1060 | barrier(); /* hw_consumer can change underneath */ |
| 1061 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); |
| 1062 | done = (sw_consumer == hw_consumer); |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1063 | spin_unlock(&adapter->tx_clean_lock); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1064 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1065 | return (done); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1066 | } |
| 1067 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 1068 | void |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1069 | netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, |
| 1070 | struct nx_host_rds_ring *rds_ring) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1071 | { |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1072 | struct rcv_desc *pdesc; |
| 1073 | struct netxen_rx_buffer *buffer; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1074 | int producer, count = 0; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1075 | netxen_ctx_msg msg = 0; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1076 | struct list_head *head; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1077 | |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1078 | producer = rds_ring->producer; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1079 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1080 | spin_lock(&rds_ring->lock); |
| 1081 | head = &rds_ring->free_list; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1082 | while (!list_empty(head)) { |
| 1083 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1084 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1085 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1086 | if (!buffer->skb) { |
| 1087 | if (netxen_alloc_rx_skb(adapter, rds_ring, buffer)) |
| 1088 | break; |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | count++; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1092 | list_del(&buffer->list); |
| 1093 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1094 | /* make a rcv descriptor */ |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1095 | pdesc = &rds_ring->desc_head[producer]; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1096 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1097 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1098 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1099 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1100 | producer = get_next_index(producer, rds_ring->num_desc); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1101 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1102 | spin_unlock(&rds_ring->lock); |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 1103 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1104 | if (count) { |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1105 | rds_ring->producer = producer; |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 1106 | adapter->pci_write_normalize(adapter, |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1107 | rds_ring->crb_rcv_producer, |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1108 | (producer-1) & (rds_ring->num_desc-1)); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1109 | |
| 1110 | if (adapter->fw_major < 4) { |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1111 | /* |
| 1112 | * Write a doorbell msg to tell phanmon of change in |
| 1113 | * receive ring producer |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1114 | * Only for firmware version < 4.0.0 |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1115 | */ |
| 1116 | netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); |
| 1117 | netxen_set_msg_privid(msg); |
| 1118 | netxen_set_msg_count(msg, |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1119 | ((producer - 1) & |
| 1120 | (rds_ring->num_desc - 1))); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1121 | netxen_set_msg_ctxid(msg, adapter->portnum); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1122 | netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); |
| 1123 | writel(msg, |
| 1124 | DB_NORMALIZE(adapter, |
| 1125 | NETXEN_RCV_PRODUCER_OFFSET)); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1126 | } |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1127 | } |
| 1128 | } |
| 1129 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 1130 | static void |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1131 | netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
| 1132 | struct nx_host_rds_ring *rds_ring) |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1133 | { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1134 | struct rcv_desc *pdesc; |
| 1135 | struct netxen_rx_buffer *buffer; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1136 | int producer, count = 0; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1137 | struct list_head *head; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1138 | |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1139 | producer = rds_ring->producer; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1140 | if (!spin_trylock(&rds_ring->lock)) |
| 1141 | return; |
| 1142 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1143 | head = &rds_ring->free_list; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1144 | while (!list_empty(head)) { |
| 1145 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1146 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1147 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1148 | if (!buffer->skb) { |
| 1149 | if (netxen_alloc_rx_skb(adapter, rds_ring, buffer)) |
| 1150 | break; |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1151 | } |
| 1152 | |
| 1153 | count++; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1154 | list_del(&buffer->list); |
| 1155 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1156 | /* make a rcv descriptor */ |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1157 | pdesc = &rds_ring->desc_head[producer]; |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1158 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1159 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1160 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1161 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1162 | producer = get_next_index(producer, rds_ring->num_desc); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1163 | } |
| 1164 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1165 | if (count) { |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1166 | rds_ring->producer = producer; |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 1167 | adapter->pci_write_normalize(adapter, |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1168 | rds_ring->crb_rcv_producer, |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1169 | (producer - 1) & (rds_ring->num_desc - 1)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1170 | wmb(); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1171 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1172 | spin_unlock(&rds_ring->lock); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1173 | } |
| 1174 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1175 | void netxen_nic_clear_stats(struct netxen_adapter *adapter) |
| 1176 | { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1177 | memset(&adapter->stats, 0, sizeof(adapter->stats)); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1178 | return; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1179 | } |
| 1180 | |