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 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 111 | void netxen_release_rx_buffers(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 112 | { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 113 | struct netxen_recv_context *recv_ctx; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 114 | struct nx_host_rds_ring *rds_ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 115 | struct netxen_rx_buffer *rx_buf; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 116 | int i, ring; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 117 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 118 | recv_ctx = &adapter->recv_ctx; |
| 119 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 120 | rds_ring = &recv_ctx->rds_rings[ring]; |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 121 | for (i = 0; i < rds_ring->num_desc; ++i) { |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 122 | rx_buf = &(rds_ring->rx_buf_arr[i]); |
| 123 | if (rx_buf->state == NETXEN_BUFFER_FREE) |
| 124 | continue; |
| 125 | pci_unmap_single(adapter->pdev, |
| 126 | rx_buf->dma, |
| 127 | rds_ring->dma_size, |
| 128 | PCI_DMA_FROMDEVICE); |
| 129 | if (rx_buf->skb != NULL) |
| 130 | dev_kfree_skb_any(rx_buf->skb); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 131 | } |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | void netxen_release_tx_buffers(struct netxen_adapter *adapter) |
| 136 | { |
| 137 | struct netxen_cmd_buffer *cmd_buf; |
| 138 | struct netxen_skb_frag *buffrag; |
| 139 | int i, j; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 140 | struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 141 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 142 | cmd_buf = tx_ring->cmd_buf_arr; |
| 143 | for (i = 0; i < tx_ring->num_desc; i++) { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 144 | buffrag = cmd_buf->frag_array; |
| 145 | if (buffrag->dma) { |
| 146 | pci_unmap_single(adapter->pdev, buffrag->dma, |
| 147 | buffrag->length, PCI_DMA_TODEVICE); |
| 148 | buffrag->dma = 0ULL; |
| 149 | } |
| 150 | for (j = 0; j < cmd_buf->frag_count; j++) { |
| 151 | buffrag++; |
| 152 | if (buffrag->dma) { |
| 153 | pci_unmap_page(adapter->pdev, buffrag->dma, |
| 154 | buffrag->length, |
| 155 | PCI_DMA_TODEVICE); |
| 156 | buffrag->dma = 0ULL; |
| 157 | } |
| 158 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 159 | if (cmd_buf->skb) { |
| 160 | dev_kfree_skb_any(cmd_buf->skb); |
| 161 | cmd_buf->skb = NULL; |
| 162 | } |
| 163 | cmd_buf++; |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | void netxen_free_sw_resources(struct netxen_adapter *adapter) |
| 168 | { |
| 169 | struct netxen_recv_context *recv_ctx; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 170 | struct nx_host_rds_ring *rds_ring; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 171 | struct nx_host_tx_ring *tx_ring; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 172 | int ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 173 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 174 | recv_ctx = &adapter->recv_ctx; |
| 175 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 176 | rds_ring = &recv_ctx->rds_rings[ring]; |
| 177 | if (rds_ring->rx_buf_arr) { |
| 178 | vfree(rds_ring->rx_buf_arr); |
| 179 | rds_ring->rx_buf_arr = NULL; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 180 | } |
| 181 | } |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 182 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 183 | tx_ring = &adapter->tx_ring; |
| 184 | if (tx_ring->cmd_buf_arr) |
| 185 | vfree(tx_ring->cmd_buf_arr); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 186 | return; |
| 187 | } |
| 188 | |
| 189 | int netxen_alloc_sw_resources(struct netxen_adapter *adapter) |
| 190 | { |
| 191 | struct netxen_recv_context *recv_ctx; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 192 | struct nx_host_rds_ring *rds_ring; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 193 | struct nx_host_sds_ring *sds_ring; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 194 | struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 195 | struct netxen_rx_buffer *rx_buf; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 196 | int ring, i, num_rx_bufs; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 197 | |
| 198 | struct netxen_cmd_buffer *cmd_buf_arr; |
| 199 | struct net_device *netdev = adapter->netdev; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 200 | struct pci_dev *pdev = adapter->pdev; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 201 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 202 | tx_ring->num_desc = adapter->num_txd; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 203 | cmd_buf_arr = |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 204 | (struct netxen_cmd_buffer *)vmalloc(TX_BUFF_RINGSIZE(tx_ring)); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 205 | if (cmd_buf_arr == NULL) { |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 206 | dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n", |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 207 | netdev->name); |
| 208 | return -ENOMEM; |
| 209 | } |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 210 | memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring)); |
| 211 | tx_ring->cmd_buf_arr = cmd_buf_arr; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 212 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 213 | recv_ctx = &adapter->recv_ctx; |
| 214 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 215 | rds_ring = &recv_ctx->rds_rings[ring]; |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 216 | switch (ring) { |
| 217 | case RCV_RING_NORMAL: |
| 218 | rds_ring->num_desc = adapter->num_rxd; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 219 | if (adapter->ahw.cut_through) { |
| 220 | rds_ring->dma_size = |
| 221 | NX_CT_DEFAULT_RX_BUF_LEN; |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 222 | rds_ring->skb_size = |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 223 | NX_CT_DEFAULT_RX_BUF_LEN; |
| 224 | } else { |
| 225 | rds_ring->dma_size = RX_DMA_MAP_LEN; |
| 226 | rds_ring->skb_size = |
| 227 | MAX_RX_BUFFER_LENGTH; |
| 228 | } |
| 229 | break; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 230 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 231 | case RCV_RING_JUMBO: |
| 232 | rds_ring->num_desc = adapter->num_jumbo_rxd; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 233 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| 234 | rds_ring->dma_size = |
| 235 | NX_P3_RX_JUMBO_BUF_MAX_LEN; |
| 236 | else |
| 237 | rds_ring->dma_size = |
| 238 | NX_P2_RX_JUMBO_BUF_MAX_LEN; |
| 239 | rds_ring->skb_size = |
| 240 | rds_ring->dma_size + NET_IP_ALIGN; |
| 241 | break; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 242 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 243 | case RCV_RING_LRO: |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 244 | rds_ring->num_desc = adapter->num_lro_rxd; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 245 | rds_ring->dma_size = RX_LRO_DMA_MAP_LEN; |
| 246 | rds_ring->skb_size = MAX_RX_LRO_BUFFER_LENGTH; |
| 247 | break; |
| 248 | |
| 249 | } |
| 250 | rds_ring->rx_buf_arr = (struct netxen_rx_buffer *) |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 251 | vmalloc(RCV_BUFF_RINGSIZE(rds_ring)); |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 252 | if (rds_ring->rx_buf_arr == NULL) { |
| 253 | printk(KERN_ERR "%s: Failed to allocate " |
| 254 | "rx buffer ring %d\n", |
| 255 | netdev->name, ring); |
| 256 | /* free whatever was already allocated */ |
| 257 | goto err_out; |
| 258 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 259 | memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring)); |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 260 | INIT_LIST_HEAD(&rds_ring->free_list); |
| 261 | /* |
| 262 | * Now go through all of them, set reference handles |
| 263 | * and put them in the queues. |
| 264 | */ |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 265 | num_rx_bufs = rds_ring->num_desc; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 266 | rx_buf = rds_ring->rx_buf_arr; |
| 267 | for (i = 0; i < num_rx_bufs; i++) { |
| 268 | list_add_tail(&rx_buf->list, |
| 269 | &rds_ring->free_list); |
| 270 | rx_buf->ref_handle = i; |
| 271 | rx_buf->state = NETXEN_BUFFER_FREE; |
| 272 | rx_buf++; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 273 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 274 | spin_lock_init(&rds_ring->lock); |
| 275 | } |
| 276 | |
| 277 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| 278 | sds_ring = &recv_ctx->sds_rings[ring]; |
| 279 | sds_ring->irq = adapter->msix_entries[ring].vector; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 280 | sds_ring->adapter = adapter; |
| 281 | sds_ring->num_desc = adapter->num_rxd; |
| 282 | |
| 283 | for (i = 0; i < NUM_RCV_DESC_RINGS; i++) |
| 284 | INIT_LIST_HEAD(&sds_ring->free_list[i]); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 285 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 286 | |
| 287 | return 0; |
| 288 | |
| 289 | err_out: |
| 290 | netxen_free_sw_resources(adapter); |
| 291 | return -ENOMEM; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 292 | } |
| 293 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 294 | void netxen_initialize_adapter_ops(struct netxen_adapter *adapter) |
| 295 | { |
Dhananjay Phadke | 1e2d005 | 2009-03-09 08:50:56 +0000 | [diff] [blame] | 296 | switch (adapter->ahw.port_type) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 297 | case NETXEN_NIC_GBE: |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 298 | adapter->enable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 299 | netxen_niu_gbe_enable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 300 | adapter->disable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 301 | netxen_niu_gbe_disable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 302 | adapter->macaddr_set = netxen_niu_macaddr_set; |
| 303 | adapter->set_mtu = netxen_nic_set_mtu_gb; |
| 304 | adapter->set_promisc = netxen_niu_set_promiscuous_mode; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 305 | adapter->phy_read = netxen_niu_gbe_phy_read; |
| 306 | adapter->phy_write = netxen_niu_gbe_phy_write; |
Dhananjay Phadke | c9fc891 | 2008-07-21 19:44:07 -0700 | [diff] [blame] | 307 | adapter->init_port = netxen_niu_gbe_init_port; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 308 | adapter->stop_port = netxen_niu_disable_gbe_port; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 309 | break; |
| 310 | |
| 311 | case NETXEN_NIC_XGBE: |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 312 | adapter->enable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 313 | netxen_niu_xgbe_enable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 314 | adapter->disable_phy_interrupts = |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 315 | netxen_niu_xgbe_disable_phy_interrupts; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 316 | adapter->macaddr_set = netxen_niu_xg_macaddr_set; |
| 317 | adapter->set_mtu = netxen_nic_set_mtu_xgb; |
| 318 | adapter->init_port = netxen_niu_xg_init_port; |
| 319 | adapter->set_promisc = netxen_niu_xg_set_promiscuous_mode; |
Amit S. Kale | 80922fb | 2006-12-04 09:18:00 -0800 | [diff] [blame] | 320 | adapter->stop_port = netxen_niu_disable_xg_port; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 321 | break; |
| 322 | |
| 323 | default: |
| 324 | break; |
| 325 | } |
Dhananjay Phadke | 9ad2764 | 2008-08-01 03:14:59 -0700 | [diff] [blame] | 326 | |
| 327 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 328 | adapter->set_mtu = nx_fw_cmd_set_mtu; |
| 329 | adapter->set_promisc = netxen_p3_nic_set_promisc; |
| 330 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | /* |
| 334 | * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB |
| 335 | * address to external PCI CRB address. |
| 336 | */ |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 337 | static u32 netxen_decode_crb_addr(u32 addr) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 338 | { |
| 339 | int i; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 340 | u32 base_addr, offset, pci_base; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 341 | |
| 342 | crb_addr_transform_setup(); |
| 343 | |
| 344 | pci_base = NETXEN_ADDR_ERROR; |
| 345 | base_addr = addr & 0xfff00000; |
| 346 | offset = addr & 0x000fffff; |
| 347 | |
| 348 | for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) { |
| 349 | if (crb_addr_xform[i] == base_addr) { |
| 350 | pci_base = i << 20; |
| 351 | break; |
| 352 | } |
| 353 | } |
| 354 | if (pci_base == NETXEN_ADDR_ERROR) |
| 355 | return pci_base; |
| 356 | else |
| 357 | return (pci_base + offset); |
| 358 | } |
| 359 | |
Mithlesh Thukral | 13ba9c7 | 2007-04-20 07:53:05 -0700 | [diff] [blame] | 360 | static long rom_max_timeout = 100; |
| 361 | static long rom_lock_timeout = 10000; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 362 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 363 | static int rom_lock(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 364 | { |
| 365 | int iter; |
| 366 | u32 done = 0; |
| 367 | int timeout = 0; |
| 368 | |
| 369 | while (!done) { |
| 370 | /* acquire semaphore2 from PCI HW block */ |
| 371 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_LOCK), |
| 372 | &done); |
| 373 | if (done == 1) |
| 374 | break; |
| 375 | if (timeout >= rom_lock_timeout) |
| 376 | return -EIO; |
| 377 | |
| 378 | timeout++; |
| 379 | /* |
| 380 | * Yield CPU |
| 381 | */ |
| 382 | if (!in_atomic()) |
| 383 | schedule(); |
| 384 | else { |
| 385 | for (iter = 0; iter < 20; iter++) |
| 386 | cpu_relax(); /*This a nop instr on i386 */ |
| 387 | } |
| 388 | } |
| 389 | netxen_nic_reg_write(adapter, NETXEN_ROM_LOCK_ID, ROM_LOCK_DRIVER); |
| 390 | return 0; |
| 391 | } |
| 392 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 393 | static int netxen_wait_rom_done(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 394 | { |
| 395 | long timeout = 0; |
| 396 | long done = 0; |
| 397 | |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 398 | cond_resched(); |
| 399 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 400 | while (done == 0) { |
| 401 | done = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_GLB_STATUS); |
| 402 | done &= 2; |
| 403 | timeout++; |
| 404 | if (timeout >= rom_max_timeout) { |
| 405 | printk("Timeout reached waiting for rom done"); |
| 406 | return -EIO; |
| 407 | } |
| 408 | } |
| 409 | return 0; |
| 410 | } |
| 411 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 412 | static void netxen_rom_unlock(struct netxen_adapter *adapter) |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 413 | { |
| 414 | u32 val; |
| 415 | |
| 416 | /* release semaphore2 */ |
| 417 | netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(PCIE_SEM2_UNLOCK), &val); |
| 418 | |
| 419 | } |
| 420 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 421 | static int do_rom_fast_read(struct netxen_adapter *adapter, |
| 422 | int addr, int *valp) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 423 | { |
| 424 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 425 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 426 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 427 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb); |
| 428 | if (netxen_wait_rom_done(adapter)) { |
| 429 | printk("Error waiting for rom done\n"); |
| 430 | return -EIO; |
| 431 | } |
| 432 | /* reset abyte_cnt and dummy_byte_cnt */ |
| 433 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0); |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 434 | udelay(10); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 435 | netxen_nic_reg_write(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); |
| 436 | |
| 437 | *valp = netxen_nic_reg_read(adapter, NETXEN_ROMUSB_ROM_RDATA); |
| 438 | return 0; |
| 439 | } |
| 440 | |
Adrian Bunk | 993fb90 | 2007-11-05 18:07:31 +0100 | [diff] [blame] | 441 | static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
| 442 | u8 *bytes, size_t size) |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 443 | { |
| 444 | int addridx; |
| 445 | int ret = 0; |
| 446 | |
| 447 | for (addridx = addr; addridx < (addr + size); addridx += 4) { |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 448 | int v; |
| 449 | ret = do_rom_fast_read(adapter, addridx, &v); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 450 | if (ret != 0) |
| 451 | break; |
Al Viro | f305f78 | 2007-12-22 19:44:00 +0000 | [diff] [blame] | 452 | *(__le32 *)bytes = cpu_to_le32(v); |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 453 | bytes += 4; |
| 454 | } |
| 455 | |
| 456 | return ret; |
| 457 | } |
| 458 | |
| 459 | int |
Jeff Garzik | 4790654 | 2007-11-23 21:23:36 -0500 | [diff] [blame] | 460 | netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr, |
Amit S. Kale | 27d2ab5 | 2007-02-05 07:40:49 -0800 | [diff] [blame] | 461 | u8 *bytes, size_t size) |
| 462 | { |
| 463 | int ret; |
| 464 | |
| 465 | ret = rom_lock(adapter); |
| 466 | if (ret < 0) |
| 467 | return ret; |
| 468 | |
| 469 | ret = do_rom_fast_read_words(adapter, addr, bytes, size); |
| 470 | |
| 471 | netxen_rom_unlock(adapter); |
| 472 | return ret; |
| 473 | } |
| 474 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 475 | int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp) |
| 476 | { |
| 477 | int ret; |
| 478 | |
| 479 | if (rom_lock(adapter) != 0) |
| 480 | return -EIO; |
| 481 | |
| 482 | ret = do_rom_fast_read(adapter, addr, valp); |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 483 | netxen_rom_unlock(adapter); |
| 484 | return ret; |
| 485 | } |
| 486 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 487 | #define NETXEN_BOARDTYPE 0x4008 |
| 488 | #define NETXEN_BOARDNUM 0x400c |
| 489 | #define NETXEN_CHIPNUM 0x4010 |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 490 | |
| 491 | int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose) |
| 492 | { |
Dhananjay Phadke | dcd56fd | 2008-06-15 22:59:45 -0700 | [diff] [blame] | 493 | int addr, val; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 494 | int i, n, init_delay = 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 495 | struct crb_addr_pair *buf; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 496 | unsigned offset; |
Linsys Contractor Mithlesh Thukral | e0e20a1 | 2007-02-28 05:16:40 -0800 | [diff] [blame] | 497 | u32 off; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 498 | |
| 499 | /* resetall */ |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 500 | rom_lock(adapter); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 501 | netxen_crb_writelit_adapter(adapter, NETXEN_ROMUSB_GLB_SW_RESET, |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 502 | 0xffffffff); |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 503 | netxen_rom_unlock(adapter); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 504 | |
| 505 | if (verbose) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 506 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDTYPE, &val) == 0) |
| 507 | printk("P2 ROM board type: 0x%08x\n", val); |
| 508 | else |
| 509 | printk("Could not read board type\n"); |
| 510 | if (netxen_rom_fast_read(adapter, NETXEN_BOARDNUM, &val) == 0) |
| 511 | printk("P2 ROM board num: 0x%08x\n", val); |
| 512 | else |
| 513 | printk("Could not read board number\n"); |
| 514 | if (netxen_rom_fast_read(adapter, NETXEN_CHIPNUM, &val) == 0) |
| 515 | printk("P2 ROM chip num: 0x%08x\n", val); |
| 516 | else |
| 517 | printk("Could not read chip number\n"); |
| 518 | } |
| 519 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 520 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 521 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 522 | (n != 0xcafecafe) || |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 523 | netxen_rom_fast_read(adapter, 4, &n) != 0) { |
| 524 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " |
| 525 | "n: %08x\n", netxen_nic_driver_name, n); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 526 | return -EIO; |
| 527 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 528 | offset = n & 0xffffU; |
| 529 | n = (n >> 16) & 0xffffU; |
| 530 | } else { |
| 531 | if (netxen_rom_fast_read(adapter, 0, &n) != 0 || |
| 532 | !(n & 0x80000000)) { |
| 533 | printk(KERN_ERR "%s: ERROR Reading crb_init area: " |
| 534 | "n: %08x\n", netxen_nic_driver_name, n); |
| 535 | return -EIO; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 536 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 537 | offset = 1; |
| 538 | n &= ~0x80000000; |
| 539 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 540 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 541 | if (n < 1024) { |
| 542 | if (verbose) |
| 543 | printk(KERN_DEBUG "%s: %d CRB init values found" |
| 544 | " in ROM.\n", netxen_nic_driver_name, n); |
| 545 | } else { |
| 546 | printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not" |
| 547 | " initialized.\n", __func__, n); |
| 548 | return -EIO; |
| 549 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 550 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 551 | buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL); |
| 552 | if (buf == NULL) { |
| 553 | printk("%s: netxen_pinit_from_rom: Unable to calloc memory.\n", |
| 554 | netxen_nic_driver_name); |
| 555 | return -ENOMEM; |
| 556 | } |
| 557 | for (i = 0; i < n; i++) { |
| 558 | if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 || |
Daniel Marjamäki | 584dbe9 | 2009-01-29 08:55:56 +0000 | [diff] [blame] | 559 | netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) { |
| 560 | kfree(buf); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 561 | return -EIO; |
Daniel Marjamäki | 584dbe9 | 2009-01-29 08:55:56 +0000 | [diff] [blame] | 562 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 563 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 564 | buf[i].addr = addr; |
| 565 | buf[i].data = val; |
| 566 | |
| 567 | if (verbose) |
| 568 | printk(KERN_DEBUG "%s: PCI: 0x%08x == 0x%08x\n", |
| 569 | netxen_nic_driver_name, |
| 570 | (u32)netxen_decode_crb_addr(addr), val); |
| 571 | } |
| 572 | for (i = 0; i < n; i++) { |
| 573 | |
| 574 | off = netxen_decode_crb_addr(buf[i].addr); |
| 575 | if (off == NETXEN_ADDR_ERROR) { |
| 576 | printk(KERN_ERR"CRB init value out of range %x\n", |
Amit S. Kale | 1fcca1a | 2007-02-05 07:35:26 -0800 | [diff] [blame] | 577 | buf[i].addr); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 578 | continue; |
| 579 | } |
| 580 | off += NETXEN_PCI_CRBSPACE; |
| 581 | /* skipping cold reboot MAGIC */ |
| 582 | if (off == NETXEN_CAM_RAM(0x1fc)) |
| 583 | continue; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 584 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 585 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 586 | /* do not reset PCI */ |
| 587 | if (off == (ROMUSB_GLB + 0xbc)) |
| 588 | continue; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 589 | if (off == (ROMUSB_GLB + 0xa8)) |
| 590 | continue; |
| 591 | if (off == (ROMUSB_GLB + 0xc8)) /* core clock */ |
| 592 | continue; |
| 593 | if (off == (ROMUSB_GLB + 0x24)) /* MN clock */ |
| 594 | continue; |
| 595 | if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */ |
| 596 | continue; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 597 | if (off == (NETXEN_CRB_PEG_NET_1 + 0x18)) |
| 598 | buf[i].data = 0x1020; |
| 599 | /* skip the function enable register */ |
| 600 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION)) |
| 601 | continue; |
| 602 | if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2)) |
| 603 | continue; |
| 604 | if ((off & 0x0ff00000) == NETXEN_CRB_SMB) |
| 605 | continue; |
| 606 | } |
| 607 | |
| 608 | if (off == NETXEN_ADDR_ERROR) { |
| 609 | printk(KERN_ERR "%s: Err: Unknown addr: 0x%08x\n", |
| 610 | netxen_nic_driver_name, buf[i].addr); |
| 611 | continue; |
| 612 | } |
| 613 | |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 614 | init_delay = 1; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 615 | /* After writing this register, HW needs time for CRB */ |
| 616 | /* to quiet down (else crb_window returns 0xffffffff) */ |
| 617 | if (off == NETXEN_ROMUSB_GLB_SW_RESET) { |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 618 | init_delay = 1000; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 619 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 620 | /* hold xdma in reset also */ |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 621 | buf[i].data = NETXEN_NIC_XDMA_RESET; |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 622 | buf[i].data = 0x8000ff; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 623 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 624 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 625 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 626 | adapter->hw_write_wx(adapter, off, &buf[i].data, 4); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 627 | |
Dhananjay Phadke | 27c915a | 2009-01-14 20:49:00 -0800 | [diff] [blame] | 628 | msleep(init_delay); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 629 | } |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 630 | kfree(buf); |
| 631 | |
| 632 | /* disable_peg_cache_all */ |
| 633 | |
| 634 | /* unreset_net_cache */ |
| 635 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| 636 | adapter->hw_read_wx(adapter, |
| 637 | NETXEN_ROMUSB_GLB_SW_RESET, &val, 4); |
| 638 | netxen_crb_writelit_adapter(adapter, |
| 639 | NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f)); |
| 640 | } |
| 641 | |
| 642 | /* p2dn replyCount */ |
| 643 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e); |
| 644 | /* disable_peg_cache 0 */ |
| 645 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8); |
| 646 | /* disable_peg_cache 1 */ |
| 647 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8); |
| 648 | |
| 649 | /* peg_clr_all */ |
| 650 | |
| 651 | /* peg_clr 0 */ |
| 652 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0); |
| 653 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0); |
| 654 | /* peg_clr 1 */ |
| 655 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0); |
| 656 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0); |
| 657 | /* peg_clr 2 */ |
| 658 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0); |
| 659 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0); |
| 660 | /* peg_clr 3 */ |
| 661 | netxen_crb_writelit_adapter(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0); |
| 662 | 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] | 663 | return 0; |
| 664 | } |
| 665 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 666 | int netxen_initialize_adapter_offload(struct netxen_adapter *adapter) |
| 667 | { |
| 668 | uint64_t addr; |
| 669 | uint32_t hi; |
| 670 | uint32_t lo; |
| 671 | |
| 672 | adapter->dummy_dma.addr = |
Dhananjay Phadke | 7830b22 | 2008-07-21 19:44:00 -0700 | [diff] [blame] | 673 | pci_alloc_consistent(adapter->pdev, |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 674 | NETXEN_HOST_DUMMY_DMA_SIZE, |
| 675 | &adapter->dummy_dma.phys_addr); |
| 676 | if (adapter->dummy_dma.addr == NULL) { |
| 677 | printk("%s: ERROR: Could not allocate dummy DMA memory\n", |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 678 | __func__); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 679 | return -ENOMEM; |
| 680 | } |
| 681 | |
| 682 | addr = (uint64_t) adapter->dummy_dma.phys_addr; |
| 683 | hi = (addr >> 32) & 0xffffffff; |
| 684 | lo = addr & 0xffffffff; |
| 685 | |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 686 | adapter->pci_write_normalize(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi); |
| 687 | 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] | 688 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 689 | if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| 690 | uint32_t temp = 0; |
| 691 | adapter->hw_write_wx(adapter, CRB_HOST_DUMMY_BUF, &temp, 4); |
| 692 | } |
| 693 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 694 | return 0; |
| 695 | } |
| 696 | |
| 697 | void netxen_free_adapter_offload(struct netxen_adapter *adapter) |
| 698 | { |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 699 | int i = 100; |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 700 | |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 701 | if (!adapter->dummy_dma.addr) |
| 702 | return; |
| 703 | |
| 704 | if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 705 | do { |
| 706 | if (dma_watchdog_shutdown_request(adapter) == 1) |
| 707 | break; |
| 708 | msleep(50); |
| 709 | if (dma_watchdog_shutdown_poll_result(adapter) == 1) |
| 710 | break; |
| 711 | } while (--i); |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 712 | } |
Dhananjay Phadke | 439b454 | 2008-06-15 22:59:46 -0700 | [diff] [blame] | 713 | |
Dhananjay Phadke | 15eef1e | 2008-08-08 00:08:42 -0700 | [diff] [blame] | 714 | if (i) { |
| 715 | pci_free_consistent(adapter->pdev, |
| 716 | NETXEN_HOST_DUMMY_DMA_SIZE, |
| 717 | adapter->dummy_dma.addr, |
| 718 | adapter->dummy_dma.phys_addr); |
| 719 | adapter->dummy_dma.addr = NULL; |
| 720 | } else { |
| 721 | printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", |
| 722 | adapter->netdev->name); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 723 | } |
| 724 | } |
| 725 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 726 | int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 727 | { |
| 728 | u32 val = 0; |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 729 | int retries = 60; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 730 | |
Amit S. Kale | cb8011a | 2006-11-29 09:00:10 -0800 | [diff] [blame] | 731 | if (!pegtune_val) { |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 732 | do { |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 733 | val = adapter->pci_read_normalize(adapter, |
| 734 | CRB_CMDPEG_STATE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 735 | |
| 736 | if (val == PHAN_INITIALIZE_COMPLETE || |
| 737 | val == PHAN_INITIALIZE_ACK) |
| 738 | return 0; |
| 739 | |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 740 | msleep(500); |
| 741 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 742 | } while (--retries); |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 743 | |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 744 | if (!retries) { |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 745 | pegtune_val = adapter->pci_read_normalize(adapter, |
| 746 | NETXEN_ROMUSB_GLB_PEGTUNE_DONE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 747 | printk(KERN_WARNING "netxen_phantom_init: init failed, " |
| 748 | "pegtune_val=%x\n", pegtune_val); |
| 749 | return -1; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 750 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 751 | } |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 752 | |
| 753 | return 0; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 754 | } |
| 755 | |
Dhananjay Phadke | 56a0078 | 2009-04-07 22:50:41 +0000 | [diff] [blame^] | 756 | static int |
| 757 | netxen_receive_peg_ready(struct netxen_adapter *adapter) |
Dhananjay Phadke | 2956640 | 2008-07-21 19:44:04 -0700 | [diff] [blame] | 758 | { |
| 759 | u32 val = 0; |
| 760 | int retries = 2000; |
| 761 | |
| 762 | do { |
| 763 | val = adapter->pci_read_normalize(adapter, CRB_RCVPEG_STATE); |
| 764 | |
| 765 | if (val == PHAN_PEG_RCV_INITIALIZED) |
| 766 | return 0; |
| 767 | |
| 768 | msleep(10); |
| 769 | |
| 770 | } while (--retries); |
| 771 | |
| 772 | if (!retries) { |
| 773 | printk(KERN_ERR "Receive Peg initialization not " |
| 774 | "complete, state: 0x%x.\n", val); |
| 775 | return -EIO; |
| 776 | } |
| 777 | |
| 778 | return 0; |
| 779 | } |
| 780 | |
Dhananjay Phadke | 56a0078 | 2009-04-07 22:50:41 +0000 | [diff] [blame^] | 781 | int netxen_init_firmware(struct netxen_adapter *adapter) |
| 782 | { |
| 783 | int err; |
| 784 | |
| 785 | err = netxen_receive_peg_ready(adapter); |
| 786 | if (err) |
| 787 | return err; |
| 788 | |
| 789 | adapter->pci_write_normalize(adapter, |
| 790 | CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT); |
| 791 | adapter->pci_write_normalize(adapter, |
| 792 | CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC); |
| 793 | adapter->pci_write_normalize(adapter, |
| 794 | CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE); |
| 795 | adapter->pci_write_normalize(adapter, |
| 796 | CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK); |
| 797 | |
| 798 | return err; |
| 799 | } |
| 800 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 801 | static int |
| 802 | netxen_alloc_rx_skb(struct netxen_adapter *adapter, |
| 803 | struct nx_host_rds_ring *rds_ring, |
| 804 | struct netxen_rx_buffer *buffer) |
| 805 | { |
| 806 | struct sk_buff *skb; |
| 807 | dma_addr_t dma; |
| 808 | struct pci_dev *pdev = adapter->pdev; |
| 809 | |
| 810 | buffer->skb = dev_alloc_skb(rds_ring->skb_size); |
| 811 | if (!buffer->skb) |
| 812 | return 1; |
| 813 | |
| 814 | skb = buffer->skb; |
| 815 | |
| 816 | if (!adapter->ahw.cut_through) |
| 817 | skb_reserve(skb, 2); |
| 818 | |
| 819 | dma = pci_map_single(pdev, skb->data, |
| 820 | rds_ring->dma_size, PCI_DMA_FROMDEVICE); |
| 821 | |
| 822 | if (pci_dma_mapping_error(pdev, dma)) { |
| 823 | dev_kfree_skb_any(skb); |
| 824 | buffer->skb = NULL; |
| 825 | return 1; |
| 826 | } |
| 827 | |
| 828 | buffer->skb = skb; |
| 829 | buffer->dma = dma; |
| 830 | buffer->state = NETXEN_BUFFER_BUSY; |
| 831 | |
| 832 | return 0; |
| 833 | } |
| 834 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 835 | static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter, |
| 836 | struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum) |
| 837 | { |
| 838 | struct netxen_rx_buffer *buffer; |
| 839 | struct sk_buff *skb; |
| 840 | |
| 841 | buffer = &rds_ring->rx_buf_arr[index]; |
| 842 | |
| 843 | pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size, |
| 844 | PCI_DMA_FROMDEVICE); |
| 845 | |
| 846 | skb = buffer->skb; |
| 847 | if (!skb) |
| 848 | goto no_skb; |
| 849 | |
| 850 | if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) { |
| 851 | adapter->stats.csummed++; |
| 852 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 853 | } else |
| 854 | skb->ip_summed = CHECKSUM_NONE; |
| 855 | |
| 856 | skb->dev = adapter->netdev; |
| 857 | |
| 858 | buffer->skb = NULL; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 859 | no_skb: |
| 860 | buffer->state = NETXEN_BUFFER_FREE; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 861 | return skb; |
| 862 | } |
| 863 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 864 | static struct netxen_rx_buffer * |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 865 | netxen_process_rcv(struct netxen_adapter *adapter, |
| 866 | int ring, int index, int length, int cksum, int pkt_offset) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 867 | { |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 868 | struct net_device *netdev = adapter->netdev; |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 869 | struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 870 | struct netxen_rx_buffer *buffer; |
| 871 | struct sk_buff *skb; |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 872 | 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] | 873 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 874 | if (unlikely(index > rds_ring->num_desc)) |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 875 | return NULL; |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 876 | |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 877 | buffer = &rds_ring->rx_buf_arr[index]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 878 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 879 | skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum); |
| 880 | if (!skb) |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 881 | return buffer; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 882 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 883 | if (length > rds_ring->skb_size) |
| 884 | skb_put(skb, rds_ring->skb_size); |
| 885 | else |
| 886 | skb_put(skb, length); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 887 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 888 | |
| 889 | if (pkt_offset) |
| 890 | skb_pull(skb, pkt_offset); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 891 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 892 | skb->protocol = eth_type_trans(skb, netdev); |
| 893 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 894 | netif_receive_skb(skb); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 895 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 896 | adapter->stats.no_rcv++; |
| 897 | adapter->stats.rxbytes += length; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 898 | |
| 899 | return buffer; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 900 | } |
| 901 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 902 | #define netxen_merge_rx_buffers(list, head) \ |
| 903 | do { list_splice_tail_init(list, head); } while (0); |
| 904 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 905 | int |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 906 | 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] | 907 | { |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 908 | struct netxen_adapter *adapter = sds_ring->adapter; |
| 909 | |
| 910 | struct list_head *cur; |
| 911 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 912 | struct status_desc *desc; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 913 | struct netxen_rx_buffer *rxbuf; |
| 914 | |
| 915 | u32 consumer = sds_ring->consumer; |
| 916 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 917 | int count = 0; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 918 | u64 sts_data; |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 919 | int opcode, ring, index, length, cksum, pkt_offset; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 920 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 921 | while (count < max) { |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 922 | desc = &sds_ring->desc_head[consumer]; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 923 | sts_data = le64_to_cpu(desc->status_desc_data); |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 924 | |
| 925 | if (!(sts_data & STATUS_OWNER_HOST)) |
| 926 | break; |
| 927 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 928 | ring = netxen_get_sts_type(sts_data); |
| 929 | if (ring > RCV_RING_JUMBO) |
| 930 | continue; |
| 931 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 932 | opcode = netxen_get_sts_opcode(sts_data); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 933 | |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 934 | index = netxen_get_sts_refhandle(sts_data); |
| 935 | length = netxen_get_sts_totallength(sts_data); |
| 936 | cksum = netxen_get_sts_status(sts_data); |
| 937 | pkt_offset = netxen_get_sts_pkt_offset(sts_data); |
| 938 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 939 | rxbuf = netxen_process_rcv(adapter, ring, index, |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 940 | length, cksum, pkt_offset); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 941 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 942 | if (rxbuf) |
| 943 | list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]); |
| 944 | |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 945 | desc->status_desc_data = cpu_to_le64(STATUS_OWNER_PHANTOM); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 946 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 947 | consumer = get_next_index(consumer, sds_ring->num_desc); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 948 | count++; |
| 949 | } |
Dhananjay Phadke | 0ddc110 | 2009-03-09 08:50:52 +0000 | [diff] [blame] | 950 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 951 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| 952 | struct nx_host_rds_ring *rds_ring = |
| 953 | &adapter->recv_ctx.rds_rings[ring]; |
| 954 | |
| 955 | if (!list_empty(&sds_ring->free_list[ring])) { |
| 956 | list_for_each(cur, &sds_ring->free_list[ring]) { |
| 957 | rxbuf = list_entry(cur, |
| 958 | struct netxen_rx_buffer, list); |
| 959 | netxen_alloc_rx_skb(adapter, rds_ring, rxbuf); |
| 960 | } |
| 961 | spin_lock(&rds_ring->lock); |
| 962 | netxen_merge_rx_buffers(&sds_ring->free_list[ring], |
| 963 | &rds_ring->free_list); |
| 964 | spin_unlock(&rds_ring->lock); |
| 965 | } |
| 966 | |
| 967 | netxen_post_rx_buffers_nodb(adapter, rds_ring); |
| 968 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 969 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 970 | if (count) { |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 971 | sds_ring->consumer = consumer; |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 972 | adapter->pci_write_normalize(adapter, |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 973 | sds_ring->crb_sts_consumer, consumer); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 974 | } |
| 975 | |
| 976 | return count; |
| 977 | } |
| 978 | |
| 979 | /* Process Command status ring */ |
Dhananjay Phadke | 05aaa02 | 2008-03-17 19:59:49 -0700 | [diff] [blame] | 980 | int netxen_process_cmd_ring(struct netxen_adapter *adapter) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 981 | { |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 982 | u32 sw_consumer, hw_consumer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 983 | int count = 0, i; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 984 | struct netxen_cmd_buffer *buffer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 985 | struct pci_dev *pdev = adapter->pdev; |
| 986 | struct net_device *netdev = adapter->netdev; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 987 | struct netxen_skb_frag *frag; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 988 | int done = 0; |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 989 | struct nx_host_tx_ring *tx_ring = &adapter->tx_ring; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 990 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 991 | if (!spin_trylock(&adapter->tx_clean_lock)) |
| 992 | return 1; |
| 993 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 994 | sw_consumer = tx_ring->sw_consumer; |
| 995 | barrier(); /* hw_consumer can change underneath */ |
| 996 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 997 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 998 | while (sw_consumer != hw_consumer) { |
| 999 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; |
dhananjay@netxen.com | 53a01e0 | 2007-12-26 10:23:58 -0800 | [diff] [blame] | 1000 | if (buffer->skb) { |
| 1001 | frag = &buffer->frag_array[0]; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1002 | pci_unmap_single(pdev, frag->dma, frag->length, |
| 1003 | PCI_DMA_TODEVICE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1004 | frag->dma = 0ULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1005 | for (i = 1; i < buffer->frag_count; i++) { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1006 | frag++; /* Get the next frag */ |
| 1007 | pci_unmap_page(pdev, frag->dma, frag->length, |
| 1008 | PCI_DMA_TODEVICE); |
Dhananjay Phadke | 96acb6e | 2007-07-02 09:37:57 +0530 | [diff] [blame] | 1009 | frag->dma = 0ULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1010 | } |
| 1011 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1012 | adapter->stats.xmitfinished++; |
dhananjay@netxen.com | 53a01e0 | 2007-12-26 10:23:58 -0800 | [diff] [blame] | 1013 | dev_kfree_skb_any(buffer->skb); |
| 1014 | buffer->skb = NULL; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1015 | } |
| 1016 | |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 1017 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1018 | if (++count >= MAX_STATUS_HANDLE) |
| 1019 | break; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1020 | } |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1021 | |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1022 | if (count) { |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 1023 | tx_ring->sw_consumer = sw_consumer; |
Dhananjay Phadke | ba53e6b | 2008-03-17 19:59:50 -0700 | [diff] [blame] | 1024 | smp_mb(); |
| 1025 | if (netif_queue_stopped(netdev) && netif_running(netdev)) { |
| 1026 | netif_tx_lock(netdev); |
| 1027 | netif_wake_queue(netdev); |
| 1028 | smp_mb(); |
| 1029 | netif_tx_unlock(netdev); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1030 | } |
| 1031 | } |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1032 | /* |
| 1033 | * If everything is freed up to consumer then check if the ring is full |
| 1034 | * If the ring is full then check if more needs to be freed and |
| 1035 | * schedule the call back again. |
| 1036 | * |
| 1037 | * This happens when there are 2 CPUs. One could be freeing and the |
| 1038 | * other filling it. If the ring is full when we get out of here and |
| 1039 | * the card has already interrupted the host then the host can miss the |
| 1040 | * interrupt. |
| 1041 | * |
| 1042 | * There is still a possible race condition and the host could miss an |
| 1043 | * interrupt. The card has to take care of this. |
| 1044 | */ |
Dhananjay Phadke | d877f1e | 2009-04-07 22:50:40 +0000 | [diff] [blame] | 1045 | barrier(); /* hw_consumer can change underneath */ |
| 1046 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); |
| 1047 | done = (sw_consumer == hw_consumer); |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1048 | spin_unlock(&adapter->tx_clean_lock); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1049 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1050 | return (done); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1051 | } |
| 1052 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 1053 | void |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1054 | netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, |
| 1055 | struct nx_host_rds_ring *rds_ring) |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1056 | { |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1057 | struct rcv_desc *pdesc; |
| 1058 | struct netxen_rx_buffer *buffer; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1059 | int producer, count = 0; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1060 | netxen_ctx_msg msg = 0; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1061 | struct list_head *head; |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1062 | |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1063 | producer = rds_ring->producer; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1064 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1065 | spin_lock(&rds_ring->lock); |
| 1066 | head = &rds_ring->free_list; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1067 | while (!list_empty(head)) { |
| 1068 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1069 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1070 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1071 | if (!buffer->skb) { |
| 1072 | if (netxen_alloc_rx_skb(adapter, rds_ring, buffer)) |
| 1073 | break; |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1074 | } |
| 1075 | |
| 1076 | count++; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1077 | list_del(&buffer->list); |
| 1078 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1079 | /* make a rcv descriptor */ |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1080 | pdesc = &rds_ring->desc_head[producer]; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1081 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1082 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1083 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1084 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1085 | producer = get_next_index(producer, rds_ring->num_desc); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1086 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1087 | spin_unlock(&rds_ring->lock); |
Dhananjay Phadke | 9b3ef55 | 2009-03-13 14:52:04 +0000 | [diff] [blame] | 1088 | |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1089 | if (count) { |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1090 | rds_ring->producer = producer; |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 1091 | adapter->pci_write_normalize(adapter, |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1092 | rds_ring->crb_rcv_producer, |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1093 | (producer-1) & (rds_ring->num_desc-1)); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1094 | |
| 1095 | if (adapter->fw_major < 4) { |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1096 | /* |
| 1097 | * Write a doorbell msg to tell phanmon of change in |
| 1098 | * receive ring producer |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1099 | * Only for firmware version < 4.0.0 |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1100 | */ |
| 1101 | netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID); |
| 1102 | netxen_set_msg_privid(msg); |
| 1103 | netxen_set_msg_count(msg, |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1104 | ((producer - 1) & |
| 1105 | (rds_ring->num_desc - 1))); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1106 | netxen_set_msg_ctxid(msg, adapter->portnum); |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1107 | netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid)); |
| 1108 | writel(msg, |
| 1109 | DB_NORMALIZE(adapter, |
| 1110 | NETXEN_RCV_PRODUCER_OFFSET)); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1111 | } |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1112 | } |
| 1113 | } |
| 1114 | |
Dhananjay Phadke | becf46a | 2009-03-09 08:50:55 +0000 | [diff] [blame] | 1115 | static void |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1116 | netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, |
| 1117 | struct nx_host_rds_ring *rds_ring) |
Amit S. Kale | ed25ffa | 2006-12-04 09:23:25 -0800 | [diff] [blame] | 1118 | { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1119 | struct rcv_desc *pdesc; |
| 1120 | struct netxen_rx_buffer *buffer; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1121 | int producer, count = 0; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1122 | struct list_head *head; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1123 | |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1124 | producer = rds_ring->producer; |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1125 | if (!spin_trylock(&rds_ring->lock)) |
| 1126 | return; |
| 1127 | |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1128 | head = &rds_ring->free_list; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1129 | while (!list_empty(head)) { |
| 1130 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1131 | buffer = list_entry(head->next, struct netxen_rx_buffer, list); |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1132 | |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1133 | if (!buffer->skb) { |
| 1134 | if (netxen_alloc_rx_skb(adapter, rds_ring, buffer)) |
| 1135 | break; |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1136 | } |
| 1137 | |
| 1138 | count++; |
Dhananjay Phadke | d9e651b | 2008-07-21 19:44:08 -0700 | [diff] [blame] | 1139 | list_del(&buffer->list); |
| 1140 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1141 | /* make a rcv descriptor */ |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1142 | pdesc = &rds_ring->desc_head[producer]; |
Amit S. Kale | ed33ebe | 2006-12-18 05:53:59 -0800 | [diff] [blame] | 1143 | pdesc->reference_handle = cpu_to_le16(buffer->ref_handle); |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1144 | pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1145 | pdesc->addr_buffer = cpu_to_le64(buffer->dma); |
Dhananjay Phadke | 6f70340 | 2009-01-14 20:50:00 -0800 | [diff] [blame] | 1146 | |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1147 | producer = get_next_index(producer, rds_ring->num_desc); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1148 | } |
| 1149 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1150 | if (count) { |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1151 | rds_ring->producer = producer; |
Dhananjay Phadke | 3ce06a3 | 2008-07-21 19:44:03 -0700 | [diff] [blame] | 1152 | adapter->pci_write_normalize(adapter, |
Dhananjay Phadke | 48bfd1e | 2008-07-21 19:44:06 -0700 | [diff] [blame] | 1153 | rds_ring->crb_rcv_producer, |
Dhananjay Phadke | 438627c | 2009-03-13 14:52:03 +0000 | [diff] [blame] | 1154 | (producer - 1) & (rds_ring->num_desc - 1)); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1155 | wmb(); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1156 | } |
Dhananjay Phadke | d8b100c | 2009-03-13 14:52:05 +0000 | [diff] [blame] | 1157 | spin_unlock(&rds_ring->lock); |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1158 | } |
| 1159 | |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1160 | void netxen_nic_clear_stats(struct netxen_adapter *adapter) |
| 1161 | { |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1162 | memset(&adapter->stats, 0, sizeof(adapter->stats)); |
Mithlesh Thukral | 3176ff3 | 2007-04-20 07:52:37 -0700 | [diff] [blame] | 1163 | return; |
Amit S. Kale | 3d396eb | 2006-10-21 15:33:03 -0400 | [diff] [blame] | 1164 | } |
| 1165 | |