Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/message/fusion/mptlan.c |
| 3 | * IP Over Fibre Channel device driver. |
Prakash, Sathya | f36789e | 2007-08-14 16:22:54 +0530 | [diff] [blame] | 4 | * For use with LSI Fibre Channel PCI chip/adapters |
| 5 | * running LSI Fusion MPT (Message Passing Technology) firmware. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
Prakash, Sathya | cddc0ab | 2008-05-21 00:56:41 +0530 | [diff] [blame] | 7 | * Copyright (c) 2000-2008 LSI Corporation |
Eric Moore | 16d2010 | 2007-06-13 16:31:07 -0600 | [diff] [blame] | 8 | * (mailto:DL-MPTFusionLinux@lsi.com) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | */ |
| 11 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 12 | /* |
| 13 | This program is free software; you can redistribute it and/or modify |
| 14 | it under the terms of the GNU General Public License as published by |
| 15 | the Free Software Foundation; version 2 of the License. |
| 16 | |
| 17 | This program is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU General Public License for more details. |
| 21 | |
| 22 | NO WARRANTY |
| 23 | THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR |
| 24 | CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT |
| 25 | LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, |
| 26 | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is |
| 27 | solely responsible for determining the appropriateness of using and |
| 28 | distributing the Program and assumes all risks associated with its |
| 29 | exercise of rights under this Agreement, including but not limited to |
| 30 | the risks and costs of program errors, damage to or loss of data, |
| 31 | programs or equipment, and unavailability or interruption of operations. |
| 32 | |
| 33 | DISCLAIMER OF LIABILITY |
| 34 | NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY |
| 35 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND |
| 37 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| 38 | TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
| 39 | USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED |
| 40 | HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES |
| 41 | |
| 42 | You should have received a copy of the GNU General Public License |
| 43 | along with this program; if not, write to the Free Software |
| 44 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 45 | */ |
| 46 | |
| 47 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 48 | /* |
| 49 | * Define statements used for debugging |
| 50 | */ |
| 51 | //#define MPT_LAN_IO_DEBUG |
| 52 | |
| 53 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 54 | |
| 55 | #include "mptlan.h" |
| 56 | #include <linux/init.h> |
| 57 | #include <linux/module.h> |
| 58 | #include <linux/fs.h> |
Alexey Dobriyan | d43c36d | 2009-10-07 17:09:06 +0400 | [diff] [blame] | 59 | #include <linux/sched.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 60 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
Eric Moore | 9f4203b | 2007-01-04 20:47:47 -0700 | [diff] [blame] | 62 | #define my_VERSION MPT_LINUX_VERSION_COMMON |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | #define MYNAM "mptlan" |
| 64 | |
| 65 | MODULE_LICENSE("GPL"); |
Eric Moore | 9f4203b | 2007-01-04 20:47:47 -0700 | [diff] [blame] | 66 | MODULE_VERSION(my_VERSION); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
| 68 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 69 | /* |
| 70 | * MPT LAN message sizes without variable part. |
| 71 | */ |
| 72 | #define MPT_LAN_RECEIVE_POST_REQUEST_SIZE \ |
| 73 | (sizeof(LANReceivePostRequest_t) - sizeof(SGE_MPI_UNION)) |
| 74 | |
| 75 | #define MPT_LAN_TRANSACTION32_SIZE \ |
| 76 | (sizeof(SGETransaction32_t) - sizeof(u32)) |
| 77 | |
| 78 | /* |
| 79 | * Fusion MPT LAN private structures |
| 80 | */ |
| 81 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | struct BufferControl { |
| 83 | struct sk_buff *skb; |
| 84 | dma_addr_t dma; |
| 85 | unsigned int len; |
| 86 | }; |
| 87 | |
| 88 | struct mpt_lan_priv { |
| 89 | MPT_ADAPTER *mpt_dev; |
| 90 | u8 pnum; /* Port number in the IOC. This is not a Unix network port! */ |
| 91 | |
| 92 | atomic_t buckets_out; /* number of unused buckets on IOC */ |
| 93 | int bucketthresh; /* Send more when this many left */ |
| 94 | |
| 95 | int *mpt_txfidx; /* Free Tx Context list */ |
| 96 | int mpt_txfidx_tail; |
| 97 | spinlock_t txfidx_lock; |
| 98 | |
| 99 | int *mpt_rxfidx; /* Free Rx Context list */ |
| 100 | int mpt_rxfidx_tail; |
| 101 | spinlock_t rxfidx_lock; |
| 102 | |
| 103 | struct BufferControl *RcvCtl; /* Receive BufferControl structs */ |
| 104 | struct BufferControl *SendCtl; /* Send BufferControl structs */ |
| 105 | |
| 106 | int max_buckets_out; /* Max buckets to send to IOC */ |
| 107 | int tx_max_out; /* IOC's Tx queue len */ |
| 108 | |
| 109 | u32 total_posted; |
| 110 | u32 total_received; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 112 | struct delayed_work post_buckets_task; |
| 113 | struct net_device *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | unsigned long post_buckets_active; |
| 115 | }; |
| 116 | |
| 117 | struct mpt_lan_ohdr { |
| 118 | u16 dtype; |
| 119 | u8 daddr[FC_ALEN]; |
| 120 | u16 stype; |
| 121 | u8 saddr[FC_ALEN]; |
| 122 | }; |
| 123 | |
| 124 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 125 | |
| 126 | /* |
| 127 | * Forward protos... |
| 128 | */ |
| 129 | static int lan_reply (MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, |
| 130 | MPT_FRAME_HDR *reply); |
| 131 | static int mpt_lan_open(struct net_device *dev); |
| 132 | static int mpt_lan_reset(struct net_device *dev); |
| 133 | static int mpt_lan_close(struct net_device *dev); |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 134 | static void mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | static void mpt_lan_wake_post_buckets_task(struct net_device *dev, |
| 136 | int priority); |
| 137 | static int mpt_lan_receive_post_turbo(struct net_device *dev, u32 tmsg); |
| 138 | static int mpt_lan_receive_post_reply(struct net_device *dev, |
| 139 | LANReceivePostReply_t *pRecvRep); |
| 140 | static int mpt_lan_send_turbo(struct net_device *dev, u32 tmsg); |
| 141 | static int mpt_lan_send_reply(struct net_device *dev, |
| 142 | LANSendReply_t *pSendRep); |
| 143 | static int mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase); |
| 144 | static int mpt_lan_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply); |
| 145 | static unsigned short mpt_lan_type_trans(struct sk_buff *skb, |
| 146 | struct net_device *dev); |
| 147 | |
| 148 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 149 | /* |
| 150 | * Fusion MPT LAN private data |
| 151 | */ |
Prakash, Sathya | f606f57 | 2007-08-14 16:12:53 +0530 | [diff] [blame] | 152 | static u8 LanCtx = MPT_MAX_PROTOCOL_DRIVERS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | static u32 max_buckets_out = 127; |
| 155 | static u32 tx_max_out_p = 127 - 16; |
| 156 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | /** |
| 159 | * lan_reply - Handle all data sent from the hardware. |
| 160 | * @ioc: Pointer to MPT_ADAPTER structure |
| 161 | * @mf: Pointer to original MPT request frame (NULL if TurboReply) |
| 162 | * @reply: Pointer to MPT reply frame |
| 163 | * |
| 164 | * Returns 1 indicating original alloc'd request frame ptr |
| 165 | * should be freed, or 0 if it shouldn't. |
| 166 | */ |
| 167 | static int |
| 168 | lan_reply (MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *reply) |
| 169 | { |
| 170 | struct net_device *dev = ioc->netdev; |
| 171 | int FreeReqFrame = 0; |
| 172 | |
| 173 | dioprintk((KERN_INFO MYNAM ": %s/%s: Got reply.\n", |
| 174 | IOC_AND_NETDEV_NAMES_s_s(dev))); |
| 175 | |
| 176 | // dioprintk((KERN_INFO MYNAM "@lan_reply: mf = %p, reply = %p\n", |
| 177 | // mf, reply)); |
| 178 | |
| 179 | if (mf == NULL) { |
| 180 | u32 tmsg = CAST_PTR_TO_U32(reply); |
| 181 | |
| 182 | dioprintk((KERN_INFO MYNAM ": %s/%s: @lan_reply, tmsg %08x\n", |
| 183 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 184 | tmsg)); |
| 185 | |
| 186 | switch (GET_LAN_FORM(tmsg)) { |
| 187 | |
| 188 | // NOTE! (Optimization) First case here is now caught in |
| 189 | // mptbase.c::mpt_interrupt() routine and callcack here |
Moore, Eric Dean | 748b77b | 2005-04-22 18:01:52 -0400 | [diff] [blame] | 190 | // is now skipped for this case! |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | #if 0 |
| 192 | case LAN_REPLY_FORM_MESSAGE_CONTEXT: |
| 193 | // dioprintk((KERN_INFO MYNAM "/lan_reply: " |
| 194 | // "MessageContext turbo reply received\n")); |
| 195 | FreeReqFrame = 1; |
| 196 | break; |
| 197 | #endif |
| 198 | |
| 199 | case LAN_REPLY_FORM_SEND_SINGLE: |
| 200 | // dioprintk((MYNAM "/lan_reply: " |
| 201 | // "calling mpt_lan_send_reply (turbo)\n")); |
| 202 | |
Moore, Eric Dean | 748b77b | 2005-04-22 18:01:52 -0400 | [diff] [blame] | 203 | // Potential BUG here? |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | // FreeReqFrame = mpt_lan_send_turbo(dev, tmsg); |
| 205 | // If/when mpt_lan_send_turbo would return 1 here, |
| 206 | // calling routine (mptbase.c|mpt_interrupt) |
| 207 | // would Oops because mf has already been set |
| 208 | // to NULL. So after return from this func, |
| 209 | // mpt_interrupt() will attempt to put (NULL) mf ptr |
| 210 | // item back onto its adapter FreeQ - Oops!:-( |
| 211 | // It's Ok, since mpt_lan_send_turbo() *currently* |
| 212 | // always returns 0, but..., just in case: |
| 213 | |
| 214 | (void) mpt_lan_send_turbo(dev, tmsg); |
| 215 | FreeReqFrame = 0; |
| 216 | |
| 217 | break; |
| 218 | |
| 219 | case LAN_REPLY_FORM_RECEIVE_SINGLE: |
| 220 | // dioprintk((KERN_INFO MYNAM "@lan_reply: " |
| 221 | // "rcv-Turbo = %08x\n", tmsg)); |
| 222 | mpt_lan_receive_post_turbo(dev, tmsg); |
| 223 | break; |
| 224 | |
| 225 | default: |
| 226 | printk (KERN_ERR MYNAM "/lan_reply: Got a turbo reply " |
| 227 | "that I don't know what to do with\n"); |
| 228 | |
| 229 | /* CHECKME! Hmmm... FreeReqFrame is 0 here; is that right? */ |
| 230 | |
| 231 | break; |
| 232 | } |
| 233 | |
| 234 | return FreeReqFrame; |
| 235 | } |
| 236 | |
| 237 | // msg = (u32 *) reply; |
| 238 | // dioprintk((KERN_INFO MYNAM "@lan_reply: msg = %08x %08x %08x %08x\n", |
| 239 | // le32_to_cpu(msg[0]), le32_to_cpu(msg[1]), |
| 240 | // le32_to_cpu(msg[2]), le32_to_cpu(msg[3]))); |
| 241 | // dioprintk((KERN_INFO MYNAM "@lan_reply: Function = %02xh\n", |
| 242 | // reply->u.hdr.Function)); |
| 243 | |
| 244 | switch (reply->u.hdr.Function) { |
| 245 | |
| 246 | case MPI_FUNCTION_LAN_SEND: |
| 247 | { |
| 248 | LANSendReply_t *pSendRep; |
| 249 | |
| 250 | pSendRep = (LANSendReply_t *) reply; |
| 251 | FreeReqFrame = mpt_lan_send_reply(dev, pSendRep); |
| 252 | break; |
| 253 | } |
| 254 | |
| 255 | case MPI_FUNCTION_LAN_RECEIVE: |
| 256 | { |
| 257 | LANReceivePostReply_t *pRecvRep; |
| 258 | |
| 259 | pRecvRep = (LANReceivePostReply_t *) reply; |
| 260 | if (pRecvRep->NumberOfContexts) { |
| 261 | mpt_lan_receive_post_reply(dev, pRecvRep); |
| 262 | if (!(pRecvRep->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) |
| 263 | FreeReqFrame = 1; |
| 264 | } else |
| 265 | dioprintk((KERN_INFO MYNAM "@lan_reply: zero context " |
| 266 | "ReceivePostReply received.\n")); |
| 267 | break; |
| 268 | } |
| 269 | |
| 270 | case MPI_FUNCTION_LAN_RESET: |
| 271 | /* Just a default reply. Might want to check it to |
| 272 | * make sure that everything went ok. |
| 273 | */ |
| 274 | FreeReqFrame = 1; |
| 275 | break; |
| 276 | |
| 277 | case MPI_FUNCTION_EVENT_NOTIFICATION: |
| 278 | case MPI_FUNCTION_EVENT_ACK: |
Moore, Eric Dean | 748b77b | 2005-04-22 18:01:52 -0400 | [diff] [blame] | 279 | /* _EVENT_NOTIFICATION should NOT come down this path any more. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | * Should be routed to mpt_lan_event_process(), but just in case... |
| 281 | */ |
| 282 | FreeReqFrame = 1; |
| 283 | break; |
| 284 | |
| 285 | default: |
| 286 | printk (KERN_ERR MYNAM "/lan_reply: Got a non-turbo " |
| 287 | "reply that I don't know what to do with\n"); |
| 288 | |
| 289 | /* CHECKME! Hmmm... FreeReqFrame is 0 here; is that right? */ |
| 290 | FreeReqFrame = 1; |
| 291 | |
| 292 | break; |
| 293 | } |
| 294 | |
| 295 | return FreeReqFrame; |
| 296 | } |
| 297 | |
| 298 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 299 | static int |
| 300 | mpt_lan_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) |
| 301 | { |
| 302 | struct net_device *dev = ioc->netdev; |
Moore, Eric Dean | 466544d | 2005-09-14 18:09:10 -0600 | [diff] [blame] | 303 | struct mpt_lan_priv *priv; |
| 304 | |
| 305 | if (dev == NULL) |
| 306 | return(1); |
| 307 | else |
| 308 | priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
| 310 | dlprintk((KERN_INFO MYNAM ": IOC %s_reset routed to LAN driver!\n", |
| 311 | reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( |
| 312 | reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); |
| 313 | |
| 314 | if (priv->mpt_rxfidx == NULL) |
| 315 | return (1); |
| 316 | |
| 317 | if (reset_phase == MPT_IOC_SETUP_RESET) { |
| 318 | ; |
| 319 | } else if (reset_phase == MPT_IOC_PRE_RESET) { |
| 320 | int i; |
| 321 | unsigned long flags; |
| 322 | |
| 323 | netif_stop_queue(dev); |
| 324 | |
| 325 | dlprintk ((KERN_INFO "mptlan/ioc_reset: called netif_stop_queue for %s.\n", dev->name)); |
| 326 | |
| 327 | atomic_set(&priv->buckets_out, 0); |
| 328 | |
| 329 | /* Reset Rx Free Tail index and re-populate the queue. */ |
| 330 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 331 | priv->mpt_rxfidx_tail = -1; |
| 332 | for (i = 0; i < priv->max_buckets_out; i++) |
| 333 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = i; |
| 334 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 335 | } else { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 336 | mpt_lan_post_receive_buckets(priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | netif_wake_queue(dev); |
| 338 | } |
| 339 | |
| 340 | return 1; |
| 341 | } |
| 342 | |
| 343 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 344 | static int |
| 345 | mpt_lan_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) |
| 346 | { |
| 347 | dlprintk((KERN_INFO MYNAM ": MPT event routed to LAN driver!\n")); |
| 348 | |
| 349 | switch (le32_to_cpu(pEvReply->Event)) { |
| 350 | case MPI_EVENT_NONE: /* 00 */ |
| 351 | case MPI_EVENT_LOG_DATA: /* 01 */ |
| 352 | case MPI_EVENT_STATE_CHANGE: /* 02 */ |
| 353 | case MPI_EVENT_UNIT_ATTENTION: /* 03 */ |
| 354 | case MPI_EVENT_IOC_BUS_RESET: /* 04 */ |
| 355 | case MPI_EVENT_EXT_BUS_RESET: /* 05 */ |
| 356 | case MPI_EVENT_RESCAN: /* 06 */ |
| 357 | /* Ok, do we need to do anything here? As far as |
| 358 | I can tell, this is when a new device gets added |
| 359 | to the loop. */ |
| 360 | case MPI_EVENT_LINK_STATUS_CHANGE: /* 07 */ |
| 361 | case MPI_EVENT_LOOP_STATE_CHANGE: /* 08 */ |
| 362 | case MPI_EVENT_LOGOUT: /* 09 */ |
| 363 | case MPI_EVENT_EVENT_CHANGE: /* 0A */ |
| 364 | default: |
| 365 | break; |
| 366 | } |
| 367 | |
| 368 | /* |
| 369 | * NOTE: pEvent->AckRequired handling now done in mptbase.c; |
| 370 | * Do NOT do it here now! |
| 371 | */ |
| 372 | |
| 373 | return 1; |
| 374 | } |
| 375 | |
| 376 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 377 | static int |
| 378 | mpt_lan_open(struct net_device *dev) |
| 379 | { |
| 380 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 381 | int i; |
| 382 | |
| 383 | if (mpt_lan_reset(dev) != 0) { |
| 384 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 385 | |
| 386 | printk (KERN_WARNING MYNAM "/lan_open: lan_reset failed."); |
| 387 | |
| 388 | if (mpt_dev->active) |
| 389 | printk ("The ioc is active. Perhaps it needs to be" |
| 390 | " reset?\n"); |
| 391 | else |
| 392 | printk ("The ioc in inactive, most likely in the " |
| 393 | "process of being reset. Please try again in " |
| 394 | "a moment.\n"); |
| 395 | } |
| 396 | |
| 397 | priv->mpt_txfidx = kmalloc(priv->tx_max_out * sizeof(int), GFP_KERNEL); |
| 398 | if (priv->mpt_txfidx == NULL) |
| 399 | goto out; |
| 400 | priv->mpt_txfidx_tail = -1; |
| 401 | |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 402 | priv->SendCtl = kcalloc(priv->tx_max_out, sizeof(struct BufferControl), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | GFP_KERNEL); |
| 404 | if (priv->SendCtl == NULL) |
| 405 | goto out_mpt_txfidx; |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 406 | for (i = 0; i < priv->tx_max_out; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | |
| 409 | dlprintk((KERN_INFO MYNAM "@lo: Finished initializing SendCtl\n")); |
| 410 | |
| 411 | priv->mpt_rxfidx = kmalloc(priv->max_buckets_out * sizeof(int), |
| 412 | GFP_KERNEL); |
| 413 | if (priv->mpt_rxfidx == NULL) |
| 414 | goto out_SendCtl; |
| 415 | priv->mpt_rxfidx_tail = -1; |
| 416 | |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 417 | priv->RcvCtl = kcalloc(priv->max_buckets_out, |
| 418 | sizeof(struct BufferControl), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | GFP_KERNEL); |
| 420 | if (priv->RcvCtl == NULL) |
| 421 | goto out_mpt_rxfidx; |
Christoph Hellwig | 1ca00bb | 2006-01-13 18:27:50 +0100 | [diff] [blame] | 422 | for (i = 0; i < priv->max_buckets_out; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | |
| 425 | /**/ dlprintk((KERN_INFO MYNAM "/lo: txfidx contains - ")); |
| 426 | /**/ for (i = 0; i < priv->tx_max_out; i++) |
| 427 | /**/ dlprintk((" %xh", priv->mpt_txfidx[i])); |
| 428 | /**/ dlprintk(("\n")); |
| 429 | |
| 430 | dlprintk((KERN_INFO MYNAM "/lo: Finished initializing RcvCtl\n")); |
| 431 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 432 | mpt_lan_post_receive_buckets(priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | printk(KERN_INFO MYNAM ": %s/%s: interface up & active\n", |
| 434 | IOC_AND_NETDEV_NAMES_s_s(dev)); |
| 435 | |
| 436 | if (mpt_event_register(LanCtx, mpt_lan_event_process) != 0) { |
| 437 | printk (KERN_WARNING MYNAM "/lo: Unable to register for Event" |
| 438 | " Notifications. This is a bad thing! We're not going " |
| 439 | "to go ahead, but I'd be leery of system stability at " |
| 440 | "this point.\n"); |
| 441 | } |
| 442 | |
| 443 | netif_start_queue(dev); |
| 444 | dlprintk((KERN_INFO MYNAM "/lo: Done.\n")); |
| 445 | |
| 446 | return 0; |
| 447 | out_mpt_rxfidx: |
| 448 | kfree(priv->mpt_rxfidx); |
| 449 | priv->mpt_rxfidx = NULL; |
| 450 | out_SendCtl: |
| 451 | kfree(priv->SendCtl); |
| 452 | priv->SendCtl = NULL; |
| 453 | out_mpt_txfidx: |
| 454 | kfree(priv->mpt_txfidx); |
| 455 | priv->mpt_txfidx = NULL; |
| 456 | out: return -ENOMEM; |
| 457 | } |
| 458 | |
| 459 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 460 | /* Send a LanReset message to the FW. This should result in the FW returning |
| 461 | any buckets it still has. */ |
| 462 | static int |
| 463 | mpt_lan_reset(struct net_device *dev) |
| 464 | { |
| 465 | MPT_FRAME_HDR *mf; |
| 466 | LANResetRequest_t *pResetReq; |
| 467 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 468 | |
| 469 | mf = mpt_get_msg_frame(LanCtx, priv->mpt_dev); |
| 470 | |
| 471 | if (mf == NULL) { |
| 472 | /* dlprintk((KERN_ERR MYNAM "/reset: Evil funkiness abounds! " |
| 473 | "Unable to allocate a request frame.\n")); |
| 474 | */ |
| 475 | return -1; |
| 476 | } |
| 477 | |
| 478 | pResetReq = (LANResetRequest_t *) mf; |
| 479 | |
| 480 | pResetReq->Function = MPI_FUNCTION_LAN_RESET; |
| 481 | pResetReq->ChainOffset = 0; |
| 482 | pResetReq->Reserved = 0; |
| 483 | pResetReq->PortNumber = priv->pnum; |
| 484 | pResetReq->MsgFlags = 0; |
| 485 | pResetReq->Reserved2 = 0; |
| 486 | |
| 487 | mpt_put_msg_frame(LanCtx, priv->mpt_dev, mf); |
| 488 | |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 493 | static int |
| 494 | mpt_lan_close(struct net_device *dev) |
| 495 | { |
| 496 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 497 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
Nishanth Aravamudan | 6521018 | 2005-11-07 01:01:19 -0800 | [diff] [blame] | 498 | unsigned long timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | int i; |
| 500 | |
| 501 | dlprintk((KERN_INFO MYNAM ": mpt_lan_close called\n")); |
| 502 | |
| 503 | mpt_event_deregister(LanCtx); |
| 504 | |
| 505 | dlprintk((KERN_INFO MYNAM ":lan_close: Posted %d buckets " |
| 506 | "since driver was loaded, %d still out\n", |
| 507 | priv->total_posted,atomic_read(&priv->buckets_out))); |
| 508 | |
| 509 | netif_stop_queue(dev); |
| 510 | |
| 511 | mpt_lan_reset(dev); |
| 512 | |
Nishanth Aravamudan | 6521018 | 2005-11-07 01:01:19 -0800 | [diff] [blame] | 513 | timeout = jiffies + 2 * HZ; |
| 514 | while (atomic_read(&priv->buckets_out) && time_before(jiffies, timeout)) |
| 515 | schedule_timeout_interruptible(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
| 517 | for (i = 0; i < priv->max_buckets_out; i++) { |
| 518 | if (priv->RcvCtl[i].skb != NULL) { |
| 519 | /**/ dlprintk((KERN_INFO MYNAM "/lan_close: bucket %05x " |
| 520 | /**/ "is still out\n", i)); |
| 521 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[i].dma, |
| 522 | priv->RcvCtl[i].len, |
| 523 | PCI_DMA_FROMDEVICE); |
| 524 | dev_kfree_skb(priv->RcvCtl[i].skb); |
| 525 | } |
| 526 | } |
| 527 | |
Moore, Eric Dean | d485eb8 | 2005-05-11 17:37:26 -0600 | [diff] [blame] | 528 | kfree(priv->RcvCtl); |
| 529 | kfree(priv->mpt_rxfidx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
| 531 | for (i = 0; i < priv->tx_max_out; i++) { |
| 532 | if (priv->SendCtl[i].skb != NULL) { |
| 533 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[i].dma, |
| 534 | priv->SendCtl[i].len, |
| 535 | PCI_DMA_TODEVICE); |
| 536 | dev_kfree_skb(priv->SendCtl[i].skb); |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | kfree(priv->SendCtl); |
| 541 | kfree(priv->mpt_txfidx); |
| 542 | |
| 543 | atomic_set(&priv->buckets_out, 0); |
| 544 | |
| 545 | printk(KERN_INFO MYNAM ": %s/%s: interface down & inactive\n", |
| 546 | IOC_AND_NETDEV_NAMES_s_s(dev)); |
| 547 | |
| 548 | return 0; |
| 549 | } |
| 550 | |
| 551 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | static int |
| 553 | mpt_lan_change_mtu(struct net_device *dev, int new_mtu) |
| 554 | { |
| 555 | if ((new_mtu < MPT_LAN_MIN_MTU) || (new_mtu > MPT_LAN_MAX_MTU)) |
| 556 | return -EINVAL; |
| 557 | dev->mtu = new_mtu; |
| 558 | return 0; |
| 559 | } |
| 560 | |
| 561 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 562 | /* Tx timeout handler. */ |
| 563 | static void |
| 564 | mpt_lan_tx_timeout(struct net_device *dev) |
| 565 | { |
| 566 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 567 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 568 | |
| 569 | if (mpt_dev->active) { |
| 570 | dlprintk (("mptlan/tx_timeout: calling netif_wake_queue for %s.\n", dev->name)); |
| 571 | netif_wake_queue(dev); |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 576 | //static inline int |
| 577 | static int |
| 578 | mpt_lan_send_turbo(struct net_device *dev, u32 tmsg) |
| 579 | { |
| 580 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 581 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 582 | struct sk_buff *sent; |
| 583 | unsigned long flags; |
| 584 | u32 ctx; |
| 585 | |
| 586 | ctx = GET_LAN_BUFFER_CONTEXT(tmsg); |
| 587 | sent = priv->SendCtl[ctx].skb; |
| 588 | |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 589 | dev->stats.tx_packets++; |
| 590 | dev->stats.tx_bytes += sent->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
| 592 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", |
| 593 | IOC_AND_NETDEV_NAMES_s_s(dev), |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 594 | __func__, sent)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | |
| 596 | priv->SendCtl[ctx].skb = NULL; |
| 597 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, |
| 598 | priv->SendCtl[ctx].len, PCI_DMA_TODEVICE); |
| 599 | dev_kfree_skb_irq(sent); |
| 600 | |
| 601 | spin_lock_irqsave(&priv->txfidx_lock, flags); |
| 602 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = ctx; |
| 603 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); |
| 604 | |
| 605 | netif_wake_queue(dev); |
| 606 | return 0; |
| 607 | } |
| 608 | |
| 609 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 610 | static int |
| 611 | mpt_lan_send_reply(struct net_device *dev, LANSendReply_t *pSendRep) |
| 612 | { |
| 613 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 614 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 615 | struct sk_buff *sent; |
| 616 | unsigned long flags; |
| 617 | int FreeReqFrame = 0; |
| 618 | u32 *pContext; |
| 619 | u32 ctx; |
| 620 | u8 count; |
| 621 | |
| 622 | count = pSendRep->NumberOfContexts; |
| 623 | |
| 624 | dioprintk((KERN_INFO MYNAM ": send_reply: IOCStatus: %04x\n", |
| 625 | le16_to_cpu(pSendRep->IOCStatus))); |
| 626 | |
| 627 | /* Add check for Loginfo Flag in IOCStatus */ |
| 628 | |
| 629 | switch (le16_to_cpu(pSendRep->IOCStatus) & MPI_IOCSTATUS_MASK) { |
| 630 | case MPI_IOCSTATUS_SUCCESS: |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 631 | dev->stats.tx_packets += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | break; |
| 633 | |
| 634 | case MPI_IOCSTATUS_LAN_CANCELED: |
| 635 | case MPI_IOCSTATUS_LAN_TRANSMIT_ABORTED: |
| 636 | break; |
| 637 | |
| 638 | case MPI_IOCSTATUS_INVALID_SGL: |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 639 | dev->stats.tx_errors += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Invalid SGL sent to IOC!\n", |
| 641 | IOC_AND_NETDEV_NAMES_s_s(dev)); |
| 642 | goto out; |
| 643 | |
| 644 | default: |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 645 | dev->stats.tx_errors += count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 646 | break; |
| 647 | } |
| 648 | |
| 649 | pContext = &pSendRep->BufferContext; |
| 650 | |
| 651 | spin_lock_irqsave(&priv->txfidx_lock, flags); |
| 652 | while (count > 0) { |
| 653 | ctx = GET_LAN_BUFFER_CONTEXT(le32_to_cpu(*pContext)); |
| 654 | |
| 655 | sent = priv->SendCtl[ctx].skb; |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 656 | dev->stats.tx_bytes += sent->len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | |
| 658 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, skb %p sent.\n", |
| 659 | IOC_AND_NETDEV_NAMES_s_s(dev), |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 660 | __func__, sent)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | |
| 662 | priv->SendCtl[ctx].skb = NULL; |
| 663 | pci_unmap_single(mpt_dev->pcidev, priv->SendCtl[ctx].dma, |
| 664 | priv->SendCtl[ctx].len, PCI_DMA_TODEVICE); |
| 665 | dev_kfree_skb_irq(sent); |
| 666 | |
| 667 | priv->mpt_txfidx[++priv->mpt_txfidx_tail] = ctx; |
| 668 | |
| 669 | pContext++; |
| 670 | count--; |
| 671 | } |
| 672 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); |
| 673 | |
| 674 | out: |
| 675 | if (!(pSendRep->MsgFlags & MPI_MSGFLAGS_CONTINUATION_REPLY)) |
| 676 | FreeReqFrame = 1; |
| 677 | |
| 678 | netif_wake_queue(dev); |
| 679 | return FreeReqFrame; |
| 680 | } |
| 681 | |
| 682 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 683 | static int |
| 684 | mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) |
| 685 | { |
| 686 | struct mpt_lan_priv *priv = netdev_priv(dev); |
| 687 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 688 | MPT_FRAME_HDR *mf; |
| 689 | LANSendRequest_t *pSendReq; |
| 690 | SGETransaction32_t *pTrans; |
| 691 | SGESimple64_t *pSimple; |
Arnaldo Carvalho de Melo | 98e399f | 2007-03-19 15:33:04 -0700 | [diff] [blame] | 692 | const unsigned char *mac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | dma_addr_t dma; |
| 694 | unsigned long flags; |
| 695 | int ctx; |
| 696 | u16 cur_naa = 0x1000; |
| 697 | |
| 698 | dioprintk((KERN_INFO MYNAM ": %s called, skb_addr = %p\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 699 | __func__, skb)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
| 701 | spin_lock_irqsave(&priv->txfidx_lock, flags); |
| 702 | if (priv->mpt_txfidx_tail < 0) { |
| 703 | netif_stop_queue(dev); |
| 704 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); |
| 705 | |
| 706 | printk (KERN_ERR "%s: no tx context available: %u\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 707 | __func__, priv->mpt_txfidx_tail); |
Patrick McHardy | 5b54814 | 2009-06-12 06:22:29 +0000 | [diff] [blame] | 708 | return NETDEV_TX_BUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | } |
| 710 | |
| 711 | mf = mpt_get_msg_frame(LanCtx, mpt_dev); |
| 712 | if (mf == NULL) { |
| 713 | netif_stop_queue(dev); |
| 714 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); |
| 715 | |
| 716 | printk (KERN_ERR "%s: Unable to alloc request frame\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 717 | __func__); |
Patrick McHardy | 5b54814 | 2009-06-12 06:22:29 +0000 | [diff] [blame] | 718 | return NETDEV_TX_BUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | ctx = priv->mpt_txfidx[priv->mpt_txfidx_tail--]; |
| 722 | spin_unlock_irqrestore(&priv->txfidx_lock, flags); |
| 723 | |
| 724 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Creating new msg frame (send).\n", |
| 725 | // IOC_AND_NETDEV_NAMES_s_s(dev))); |
| 726 | |
| 727 | pSendReq = (LANSendRequest_t *) mf; |
| 728 | |
| 729 | /* Set the mac.raw pointer, since this apparently isn't getting |
| 730 | * done before we get the skb. Pull the data pointer past the mac data. |
| 731 | */ |
Arnaldo Carvalho de Melo | 459a98e | 2007-03-19 15:30:44 -0700 | [diff] [blame] | 732 | skb_reset_mac_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | skb_pull(skb, 12); |
| 734 | |
| 735 | dma = pci_map_single(mpt_dev->pcidev, skb->data, skb->len, |
| 736 | PCI_DMA_TODEVICE); |
| 737 | |
| 738 | priv->SendCtl[ctx].skb = skb; |
| 739 | priv->SendCtl[ctx].dma = dma; |
| 740 | priv->SendCtl[ctx].len = skb->len; |
| 741 | |
| 742 | /* Message Header */ |
| 743 | pSendReq->Reserved = 0; |
| 744 | pSendReq->Function = MPI_FUNCTION_LAN_SEND; |
| 745 | pSendReq->ChainOffset = 0; |
| 746 | pSendReq->Reserved2 = 0; |
| 747 | pSendReq->MsgFlags = 0; |
| 748 | pSendReq->PortNumber = priv->pnum; |
| 749 | |
| 750 | /* Transaction Context Element */ |
| 751 | pTrans = (SGETransaction32_t *) pSendReq->SG_List; |
| 752 | |
| 753 | /* No Flags, 8 bytes of Details, 32bit Context (bloody turbo replies) */ |
| 754 | pTrans->ContextSize = sizeof(u32); |
| 755 | pTrans->DetailsLength = 2 * sizeof(u32); |
| 756 | pTrans->Flags = 0; |
| 757 | pTrans->TransactionContext[0] = cpu_to_le32(ctx); |
| 758 | |
| 759 | // dioprintk((KERN_INFO MYNAM ": %s/%s: BC = %08x, skb = %p, buff = %p\n", |
| 760 | // IOC_AND_NETDEV_NAMES_s_s(dev), |
| 761 | // ctx, skb, skb->data)); |
| 762 | |
Arnaldo Carvalho de Melo | 98e399f | 2007-03-19 15:33:04 -0700 | [diff] [blame] | 763 | mac = skb_mac_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | |
| 765 | pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) | |
Arnaldo Carvalho de Melo | 98e399f | 2007-03-19 15:33:04 -0700 | [diff] [blame] | 766 | (mac[0] << 8) | |
| 767 | (mac[1] << 0)); |
| 768 | pTrans->TransactionDetails[1] = cpu_to_le32((mac[2] << 24) | |
| 769 | (mac[3] << 16) | |
| 770 | (mac[4] << 8) | |
| 771 | (mac[5] << 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | |
| 773 | pSimple = (SGESimple64_t *) &pTrans->TransactionDetails[2]; |
| 774 | |
| 775 | /* If we ever decide to send more than one Simple SGE per LANSend, then |
| 776 | we will need to make sure that LAST_ELEMENT only gets set on the |
| 777 | last one. Otherwise, bad voodoo and evil funkiness will commence. */ |
| 778 | pSimple->FlagsLength = cpu_to_le32( |
| 779 | ((MPI_SGE_FLAGS_LAST_ELEMENT | |
| 780 | MPI_SGE_FLAGS_END_OF_BUFFER | |
| 781 | MPI_SGE_FLAGS_SIMPLE_ELEMENT | |
| 782 | MPI_SGE_FLAGS_SYSTEM_ADDRESS | |
| 783 | MPI_SGE_FLAGS_HOST_TO_IOC | |
| 784 | MPI_SGE_FLAGS_64_BIT_ADDRESSING | |
| 785 | MPI_SGE_FLAGS_END_OF_LIST) << MPI_SGE_FLAGS_SHIFT) | |
| 786 | skb->len); |
| 787 | pSimple->Address.Low = cpu_to_le32((u32) dma); |
| 788 | if (sizeof(dma_addr_t) > sizeof(u32)) |
| 789 | pSimple->Address.High = cpu_to_le32((u32) ((u64) dma >> 32)); |
| 790 | else |
| 791 | pSimple->Address.High = 0; |
| 792 | |
| 793 | mpt_put_msg_frame (LanCtx, mpt_dev, mf); |
| 794 | dev->trans_start = jiffies; |
| 795 | |
| 796 | dioprintk((KERN_INFO MYNAM ": %s/%s: Sending packet. FlagsLength = %08x.\n", |
| 797 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 798 | le32_to_cpu(pSimple->FlagsLength))); |
| 799 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 800 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | } |
| 802 | |
| 803 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 804 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | mpt_lan_wake_post_buckets_task(struct net_device *dev, int priority) |
| 806 | /* |
| 807 | * @priority: 0 = put it on the timer queue, 1 = put it on the immediate queue |
| 808 | */ |
| 809 | { |
Wang Chen | 9734124 | 2008-12-03 21:13:37 -0800 | [diff] [blame] | 810 | struct mpt_lan_priv *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
| 812 | if (test_and_set_bit(0, &priv->post_buckets_active) == 0) { |
| 813 | if (priority) { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 814 | schedule_delayed_work(&priv->post_buckets_task, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | } else { |
| 816 | schedule_delayed_work(&priv->post_buckets_task, 1); |
| 817 | dioprintk((KERN_INFO MYNAM ": post_buckets queued on " |
| 818 | "timer.\n")); |
| 819 | } |
| 820 | dioprintk((KERN_INFO MYNAM ": %s/%s: Queued post_buckets task.\n", |
| 821 | IOC_AND_NETDEV_NAMES_s_s(dev) )); |
| 822 | } |
| 823 | } |
| 824 | |
| 825 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 826 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 827 | mpt_lan_receive_skb(struct net_device *dev, struct sk_buff *skb) |
| 828 | { |
Wang Chen | 9734124 | 2008-12-03 21:13:37 -0800 | [diff] [blame] | 829 | struct mpt_lan_priv *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | |
| 831 | skb->protocol = mpt_lan_type_trans(skb, dev); |
| 832 | |
| 833 | dioprintk((KERN_INFO MYNAM ": %s/%s: Incoming packet (%d bytes) " |
| 834 | "delivered to upper level.\n", |
| 835 | IOC_AND_NETDEV_NAMES_s_s(dev), skb->len)); |
| 836 | |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 837 | dev->stats.rx_bytes += skb->len; |
| 838 | dev->stats.rx_packets++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | |
| 840 | skb->dev = dev; |
| 841 | netif_rx(skb); |
| 842 | |
| 843 | dioprintk((MYNAM "/receive_skb: %d buckets remaining\n", |
| 844 | atomic_read(&priv->buckets_out))); |
| 845 | |
| 846 | if (atomic_read(&priv->buckets_out) < priv->bucketthresh) |
| 847 | mpt_lan_wake_post_buckets_task(dev, 1); |
| 848 | |
| 849 | dioprintk((KERN_INFO MYNAM "/receive_post_reply: %d buckets " |
| 850 | "remaining, %d received back since sod\n", |
| 851 | atomic_read(&priv->buckets_out), priv->total_received)); |
| 852 | |
| 853 | return 0; |
| 854 | } |
| 855 | |
| 856 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 857 | //static inline int |
| 858 | static int |
| 859 | mpt_lan_receive_post_turbo(struct net_device *dev, u32 tmsg) |
| 860 | { |
Wang Chen | 9734124 | 2008-12-03 21:13:37 -0800 | [diff] [blame] | 861 | struct mpt_lan_priv *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 863 | struct sk_buff *skb, *old_skb; |
| 864 | unsigned long flags; |
| 865 | u32 ctx, len; |
| 866 | |
| 867 | ctx = GET_LAN_BUCKET_CONTEXT(tmsg); |
| 868 | skb = priv->RcvCtl[ctx].skb; |
| 869 | |
| 870 | len = GET_LAN_PACKET_LENGTH(tmsg); |
| 871 | |
| 872 | if (len < MPT_LAN_RX_COPYBREAK) { |
| 873 | old_skb = skb; |
| 874 | |
| 875 | skb = (struct sk_buff *)dev_alloc_skb(len); |
| 876 | if (!skb) { |
| 877 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", |
| 878 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 879 | __FILE__, __LINE__); |
| 880 | return -ENOMEM; |
| 881 | } |
| 882 | |
| 883 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, |
| 884 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); |
| 885 | |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 886 | skb_copy_from_linear_data(old_skb, skb_put(skb, len), len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
| 888 | pci_dma_sync_single_for_device(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, |
| 889 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); |
| 890 | goto out; |
| 891 | } |
| 892 | |
| 893 | skb_put(skb, len); |
| 894 | |
| 895 | priv->RcvCtl[ctx].skb = NULL; |
| 896 | |
| 897 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, |
| 898 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); |
| 899 | |
| 900 | out: |
| 901 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 902 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
| 903 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 904 | |
| 905 | atomic_dec(&priv->buckets_out); |
| 906 | priv->total_received++; |
| 907 | |
| 908 | return mpt_lan_receive_skb(dev, skb); |
| 909 | } |
| 910 | |
| 911 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 912 | static int |
| 913 | mpt_lan_receive_post_free(struct net_device *dev, |
| 914 | LANReceivePostReply_t *pRecvRep) |
| 915 | { |
Wang Chen | 9734124 | 2008-12-03 21:13:37 -0800 | [diff] [blame] | 916 | struct mpt_lan_priv *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 918 | unsigned long flags; |
| 919 | struct sk_buff *skb; |
| 920 | u32 ctx; |
| 921 | int count; |
| 922 | int i; |
| 923 | |
| 924 | count = pRecvRep->NumberOfContexts; |
| 925 | |
| 926 | /**/ dlprintk((KERN_INFO MYNAM "/receive_post_reply: " |
| 927 | "IOC returned %d buckets, freeing them...\n", count)); |
| 928 | |
| 929 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 930 | for (i = 0; i < count; i++) { |
| 931 | ctx = le32_to_cpu(pRecvRep->BucketContext[i]); |
| 932 | |
| 933 | skb = priv->RcvCtl[ctx].skb; |
| 934 | |
| 935 | // dlprintk((KERN_INFO MYNAM ": %s: dev_name = %s\n", |
| 936 | // IOC_AND_NETDEV_NAMES_s_s(dev))); |
| 937 | // dlprintk((KERN_INFO MYNAM "@rpr[2], priv = %p, buckets_out addr = %p", |
| 938 | // priv, &(priv->buckets_out))); |
| 939 | // dlprintk((KERN_INFO MYNAM "@rpr[2] TC + 3\n")); |
| 940 | |
| 941 | priv->RcvCtl[ctx].skb = NULL; |
| 942 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, |
| 943 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); |
| 944 | dev_kfree_skb_any(skb); |
| 945 | |
| 946 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
| 947 | } |
| 948 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 949 | |
| 950 | atomic_sub(count, &priv->buckets_out); |
| 951 | |
| 952 | // for (i = 0; i < priv->max_buckets_out; i++) |
| 953 | // if (priv->RcvCtl[i].skb != NULL) |
| 954 | // dlprintk((KERN_INFO MYNAM "@rpr: bucket %03x " |
| 955 | // "is still out\n", i)); |
| 956 | |
| 957 | /* dlprintk((KERN_INFO MYNAM "/receive_post_reply: freed %d buckets\n", |
| 958 | count)); |
| 959 | */ |
| 960 | /**/ dlprintk((KERN_INFO MYNAM "@receive_post_reply: %d buckets " |
| 961 | /**/ "remaining, %d received back since sod.\n", |
| 962 | /**/ atomic_read(&priv->buckets_out), priv->total_received)); |
| 963 | return 0; |
| 964 | } |
| 965 | |
| 966 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 967 | static int |
| 968 | mpt_lan_receive_post_reply(struct net_device *dev, |
| 969 | LANReceivePostReply_t *pRecvRep) |
| 970 | { |
Wang Chen | 9734124 | 2008-12-03 21:13:37 -0800 | [diff] [blame] | 971 | struct mpt_lan_priv *priv = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 973 | struct sk_buff *skb, *old_skb; |
| 974 | unsigned long flags; |
| 975 | u32 len, ctx, offset; |
| 976 | u32 remaining = le32_to_cpu(pRecvRep->BucketsRemaining); |
| 977 | int count; |
| 978 | int i, l; |
| 979 | |
| 980 | dioprintk((KERN_INFO MYNAM ": mpt_lan_receive_post_reply called\n")); |
| 981 | dioprintk((KERN_INFO MYNAM ": receive_post_reply: IOCStatus: %04x\n", |
| 982 | le16_to_cpu(pRecvRep->IOCStatus))); |
| 983 | |
| 984 | if ((le16_to_cpu(pRecvRep->IOCStatus) & MPI_IOCSTATUS_MASK) == |
| 985 | MPI_IOCSTATUS_LAN_CANCELED) |
| 986 | return mpt_lan_receive_post_free(dev, pRecvRep); |
| 987 | |
| 988 | len = le32_to_cpu(pRecvRep->PacketLength); |
| 989 | if (len == 0) { |
| 990 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Got a non-TURBO " |
| 991 | "ReceivePostReply w/ PacketLength zero!\n", |
| 992 | IOC_AND_NETDEV_NAMES_s_s(dev)); |
| 993 | printk (KERN_ERR MYNAM ": MsgFlags = %02x, IOCStatus = %04x\n", |
| 994 | pRecvRep->MsgFlags, le16_to_cpu(pRecvRep->IOCStatus)); |
| 995 | return -1; |
| 996 | } |
| 997 | |
| 998 | ctx = le32_to_cpu(pRecvRep->BucketContext[0]); |
| 999 | count = pRecvRep->NumberOfContexts; |
| 1000 | skb = priv->RcvCtl[ctx].skb; |
| 1001 | |
| 1002 | offset = le32_to_cpu(pRecvRep->PacketOffset); |
| 1003 | // if (offset != 0) { |
| 1004 | // printk (KERN_INFO MYNAM ": %s/%s: Got a ReceivePostReply " |
| 1005 | // "w/ PacketOffset %u\n", |
| 1006 | // IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1007 | // offset); |
| 1008 | // } |
| 1009 | |
| 1010 | dioprintk((KERN_INFO MYNAM ": %s/%s: @rpr, offset = %d, len = %d\n", |
| 1011 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1012 | offset, len)); |
| 1013 | |
| 1014 | if (count > 1) { |
| 1015 | int szrem = len; |
| 1016 | |
| 1017 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Multiple buckets returned " |
| 1018 | // "for single packet, concatenating...\n", |
| 1019 | // IOC_AND_NETDEV_NAMES_s_s(dev))); |
| 1020 | |
| 1021 | skb = (struct sk_buff *)dev_alloc_skb(len); |
| 1022 | if (!skb) { |
| 1023 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", |
| 1024 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1025 | __FILE__, __LINE__); |
| 1026 | return -ENOMEM; |
| 1027 | } |
| 1028 | |
| 1029 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 1030 | for (i = 0; i < count; i++) { |
| 1031 | |
| 1032 | ctx = le32_to_cpu(pRecvRep->BucketContext[i]); |
| 1033 | old_skb = priv->RcvCtl[ctx].skb; |
| 1034 | |
| 1035 | l = priv->RcvCtl[ctx].len; |
| 1036 | if (szrem < l) |
| 1037 | l = szrem; |
| 1038 | |
| 1039 | // dioprintk((KERN_INFO MYNAM ": %s/%s: Buckets = %d, len = %u\n", |
| 1040 | // IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1041 | // i, l)); |
| 1042 | |
| 1043 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, |
| 1044 | priv->RcvCtl[ctx].dma, |
| 1045 | priv->RcvCtl[ctx].len, |
| 1046 | PCI_DMA_FROMDEVICE); |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 1047 | skb_copy_from_linear_data(old_skb, skb_put(skb, l), l); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | |
| 1049 | pci_dma_sync_single_for_device(mpt_dev->pcidev, |
| 1050 | priv->RcvCtl[ctx].dma, |
| 1051 | priv->RcvCtl[ctx].len, |
| 1052 | PCI_DMA_FROMDEVICE); |
| 1053 | |
| 1054 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
| 1055 | szrem -= l; |
| 1056 | } |
| 1057 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 1058 | |
| 1059 | } else if (len < MPT_LAN_RX_COPYBREAK) { |
| 1060 | |
| 1061 | old_skb = skb; |
| 1062 | |
| 1063 | skb = (struct sk_buff *)dev_alloc_skb(len); |
| 1064 | if (!skb) { |
| 1065 | printk (KERN_ERR MYNAM ": %s/%s: ERROR - Can't allocate skb! (%s@%d)\n", |
| 1066 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1067 | __FILE__, __LINE__); |
| 1068 | return -ENOMEM; |
| 1069 | } |
| 1070 | |
| 1071 | pci_dma_sync_single_for_cpu(mpt_dev->pcidev, |
| 1072 | priv->RcvCtl[ctx].dma, |
| 1073 | priv->RcvCtl[ctx].len, |
| 1074 | PCI_DMA_FROMDEVICE); |
| 1075 | |
Arnaldo Carvalho de Melo | d626f62 | 2007-03-27 18:55:52 -0300 | [diff] [blame] | 1076 | skb_copy_from_linear_data(old_skb, skb_put(skb, len), len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1077 | |
| 1078 | pci_dma_sync_single_for_device(mpt_dev->pcidev, |
| 1079 | priv->RcvCtl[ctx].dma, |
| 1080 | priv->RcvCtl[ctx].len, |
| 1081 | PCI_DMA_FROMDEVICE); |
| 1082 | |
| 1083 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 1084 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
| 1085 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 1086 | |
| 1087 | } else { |
| 1088 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 1089 | |
| 1090 | priv->RcvCtl[ctx].skb = NULL; |
| 1091 | |
| 1092 | pci_unmap_single(mpt_dev->pcidev, priv->RcvCtl[ctx].dma, |
| 1093 | priv->RcvCtl[ctx].len, PCI_DMA_FROMDEVICE); |
| 1094 | priv->RcvCtl[ctx].dma = 0; |
| 1095 | |
| 1096 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
| 1097 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 1098 | |
| 1099 | skb_put(skb,len); |
| 1100 | } |
| 1101 | |
| 1102 | atomic_sub(count, &priv->buckets_out); |
| 1103 | priv->total_received += count; |
| 1104 | |
| 1105 | if (priv->mpt_rxfidx_tail >= MPT_LAN_MAX_BUCKETS_OUT) { |
| 1106 | printk (KERN_ERR MYNAM ": %s/%s: Yoohoo! mpt_rxfidx_tail = %d, " |
| 1107 | "MPT_LAN_MAX_BUCKETS_OUT = %d\n", |
| 1108 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1109 | priv->mpt_rxfidx_tail, |
| 1110 | MPT_LAN_MAX_BUCKETS_OUT); |
| 1111 | |
Moore, Eric | 4f8d98ab | 2006-02-02 17:20:05 -0700 | [diff] [blame] | 1112 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | } |
| 1114 | |
| 1115 | if (remaining == 0) |
| 1116 | printk (KERN_WARNING MYNAM ": %s/%s: WARNING - IOC out of buckets! " |
| 1117 | "(priv->buckets_out = %d)\n", |
| 1118 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1119 | atomic_read(&priv->buckets_out)); |
| 1120 | else if (remaining < 10) |
| 1121 | printk (KERN_INFO MYNAM ": %s/%s: IOC says %d buckets left. " |
| 1122 | "(priv->buckets_out = %d)\n", |
| 1123 | IOC_AND_NETDEV_NAMES_s_s(dev), |
| 1124 | remaining, atomic_read(&priv->buckets_out)); |
| 1125 | |
| 1126 | if ((remaining < priv->bucketthresh) && |
| 1127 | ((atomic_read(&priv->buckets_out) - remaining) > |
| 1128 | MPT_LAN_BUCKETS_REMAIN_MISMATCH_THRESH)) { |
| 1129 | |
| 1130 | printk (KERN_WARNING MYNAM " Mismatch between driver's " |
| 1131 | "buckets_out count and fw's BucketsRemaining " |
| 1132 | "count has crossed the threshold, issuing a " |
| 1133 | "LanReset to clear the fw's hashtable. You may " |
| 1134 | "want to check your /var/log/messages for \"CRC " |
| 1135 | "error\" event notifications.\n"); |
| 1136 | |
| 1137 | mpt_lan_reset(dev); |
| 1138 | mpt_lan_wake_post_buckets_task(dev, 0); |
| 1139 | } |
| 1140 | |
| 1141 | return mpt_lan_receive_skb(dev, skb); |
| 1142 | } |
| 1143 | |
| 1144 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 1145 | /* Simple SGE's only at the moment */ |
| 1146 | |
| 1147 | static void |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1148 | mpt_lan_post_receive_buckets(struct mpt_lan_priv *priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1149 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1150 | struct net_device *dev = priv->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | MPT_ADAPTER *mpt_dev = priv->mpt_dev; |
| 1152 | MPT_FRAME_HDR *mf; |
| 1153 | LANReceivePostRequest_t *pRecvReq; |
| 1154 | SGETransaction32_t *pTrans; |
| 1155 | SGESimple64_t *pSimple; |
| 1156 | struct sk_buff *skb; |
| 1157 | dma_addr_t dma; |
| 1158 | u32 curr, buckets, count, max; |
| 1159 | u32 len = (dev->mtu + dev->hard_header_len + 4); |
| 1160 | unsigned long flags; |
| 1161 | int i; |
| 1162 | |
| 1163 | curr = atomic_read(&priv->buckets_out); |
| 1164 | buckets = (priv->max_buckets_out - curr); |
| 1165 | |
| 1166 | dioprintk((KERN_INFO MYNAM ": %s/%s: @%s, Start_buckets = %u, buckets_out = %u\n", |
| 1167 | IOC_AND_NETDEV_NAMES_s_s(dev), |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1168 | __func__, buckets, curr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | |
| 1170 | max = (mpt_dev->req_sz - MPT_LAN_RECEIVE_POST_REQUEST_SIZE) / |
| 1171 | (MPT_LAN_TRANSACTION32_SIZE + sizeof(SGESimple64_t)); |
| 1172 | |
| 1173 | while (buckets) { |
| 1174 | mf = mpt_get_msg_frame(LanCtx, mpt_dev); |
| 1175 | if (mf == NULL) { |
| 1176 | printk (KERN_ERR "%s: Unable to alloc request frame\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1177 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | dioprintk((KERN_ERR "%s: %u buckets remaining\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1179 | __func__, buckets)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | goto out; |
| 1181 | } |
| 1182 | pRecvReq = (LANReceivePostRequest_t *) mf; |
| 1183 | |
Eric Moore | e1fc2b5 | 2007-09-29 10:17:49 -0600 | [diff] [blame] | 1184 | i = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx); |
| 1185 | mpt_dev->RequestNB[i] = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1186 | count = buckets; |
| 1187 | if (count > max) |
| 1188 | count = max; |
| 1189 | |
| 1190 | pRecvReq->Function = MPI_FUNCTION_LAN_RECEIVE; |
| 1191 | pRecvReq->ChainOffset = 0; |
| 1192 | pRecvReq->MsgFlags = 0; |
| 1193 | pRecvReq->PortNumber = priv->pnum; |
| 1194 | |
| 1195 | pTrans = (SGETransaction32_t *) pRecvReq->SG_List; |
| 1196 | pSimple = NULL; |
| 1197 | |
| 1198 | for (i = 0; i < count; i++) { |
| 1199 | int ctx; |
| 1200 | |
| 1201 | spin_lock_irqsave(&priv->rxfidx_lock, flags); |
| 1202 | if (priv->mpt_rxfidx_tail < 0) { |
| 1203 | printk (KERN_ERR "%s: Can't alloc context\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1204 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | spin_unlock_irqrestore(&priv->rxfidx_lock, |
| 1206 | flags); |
| 1207 | break; |
| 1208 | } |
| 1209 | |
| 1210 | ctx = priv->mpt_rxfidx[priv->mpt_rxfidx_tail--]; |
| 1211 | |
| 1212 | skb = priv->RcvCtl[ctx].skb; |
| 1213 | if (skb && (priv->RcvCtl[ctx].len != len)) { |
| 1214 | pci_unmap_single(mpt_dev->pcidev, |
| 1215 | priv->RcvCtl[ctx].dma, |
| 1216 | priv->RcvCtl[ctx].len, |
| 1217 | PCI_DMA_FROMDEVICE); |
| 1218 | dev_kfree_skb(priv->RcvCtl[ctx].skb); |
| 1219 | skb = priv->RcvCtl[ctx].skb = NULL; |
| 1220 | } |
| 1221 | |
| 1222 | if (skb == NULL) { |
| 1223 | skb = dev_alloc_skb(len); |
| 1224 | if (skb == NULL) { |
| 1225 | printk (KERN_WARNING |
| 1226 | MYNAM "/%s: Can't alloc skb\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1227 | __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | priv->mpt_rxfidx[++priv->mpt_rxfidx_tail] = ctx; |
| 1229 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 1230 | break; |
| 1231 | } |
| 1232 | |
| 1233 | dma = pci_map_single(mpt_dev->pcidev, skb->data, |
| 1234 | len, PCI_DMA_FROMDEVICE); |
| 1235 | |
| 1236 | priv->RcvCtl[ctx].skb = skb; |
| 1237 | priv->RcvCtl[ctx].dma = dma; |
| 1238 | priv->RcvCtl[ctx].len = len; |
| 1239 | } |
| 1240 | |
| 1241 | spin_unlock_irqrestore(&priv->rxfidx_lock, flags); |
| 1242 | |
| 1243 | pTrans->ContextSize = sizeof(u32); |
| 1244 | pTrans->DetailsLength = 0; |
| 1245 | pTrans->Flags = 0; |
| 1246 | pTrans->TransactionContext[0] = cpu_to_le32(ctx); |
| 1247 | |
| 1248 | pSimple = (SGESimple64_t *) pTrans->TransactionDetails; |
| 1249 | |
| 1250 | pSimple->FlagsLength = cpu_to_le32( |
| 1251 | ((MPI_SGE_FLAGS_END_OF_BUFFER | |
| 1252 | MPI_SGE_FLAGS_SIMPLE_ELEMENT | |
| 1253 | MPI_SGE_FLAGS_64_BIT_ADDRESSING) << MPI_SGE_FLAGS_SHIFT) | len); |
| 1254 | pSimple->Address.Low = cpu_to_le32((u32) priv->RcvCtl[ctx].dma); |
| 1255 | if (sizeof(dma_addr_t) > sizeof(u32)) |
| 1256 | pSimple->Address.High = cpu_to_le32((u32) ((u64) priv->RcvCtl[ctx].dma >> 32)); |
| 1257 | else |
| 1258 | pSimple->Address.High = 0; |
| 1259 | |
| 1260 | pTrans = (SGETransaction32_t *) (pSimple + 1); |
| 1261 | } |
| 1262 | |
| 1263 | if (pSimple == NULL) { |
| 1264 | /**/ printk (KERN_WARNING MYNAM "/%s: No buckets posted\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1265 | /**/ __func__); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1266 | mpt_free_msg_frame(mpt_dev, mf); |
| 1267 | goto out; |
| 1268 | } |
| 1269 | |
| 1270 | pSimple->FlagsLength |= cpu_to_le32(MPI_SGE_FLAGS_END_OF_LIST << MPI_SGE_FLAGS_SHIFT); |
| 1271 | |
| 1272 | pRecvReq->BucketCount = cpu_to_le32(i); |
| 1273 | |
| 1274 | /* printk(KERN_INFO MYNAM ": posting buckets\n "); |
| 1275 | * for (i = 0; i < j + 2; i ++) |
| 1276 | * printk (" %08x", le32_to_cpu(msg[i])); |
| 1277 | * printk ("\n"); |
| 1278 | */ |
| 1279 | |
| 1280 | mpt_put_msg_frame(LanCtx, mpt_dev, mf); |
| 1281 | |
| 1282 | priv->total_posted += i; |
| 1283 | buckets -= i; |
| 1284 | atomic_add(i, &priv->buckets_out); |
| 1285 | } |
| 1286 | |
| 1287 | out: |
| 1288 | dioprintk((KERN_INFO MYNAM "/%s: End_buckets = %u, priv->buckets_out = %u\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1289 | __func__, buckets, atomic_read(&priv->buckets_out))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1290 | dioprintk((KERN_INFO MYNAM "/%s: Posted %u buckets and received %u back\n", |
Harvey Harrison | cadbd4a | 2008-07-03 23:47:27 -0700 | [diff] [blame] | 1291 | __func__, priv->total_posted, priv->total_received)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1292 | |
| 1293 | clear_bit(0, &priv->post_buckets_active); |
| 1294 | } |
| 1295 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1296 | static void |
| 1297 | mpt_lan_post_receive_buckets_work(struct work_struct *work) |
| 1298 | { |
| 1299 | mpt_lan_post_receive_buckets(container_of(work, struct mpt_lan_priv, |
| 1300 | post_buckets_task.work)); |
| 1301 | } |
| 1302 | |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 1303 | static const struct net_device_ops mpt_netdev_ops = { |
| 1304 | .ndo_open = mpt_lan_open, |
| 1305 | .ndo_stop = mpt_lan_close, |
| 1306 | .ndo_start_xmit = mpt_lan_sdu_send, |
| 1307 | .ndo_change_mtu = mpt_lan_change_mtu, |
| 1308 | .ndo_tx_timeout = mpt_lan_tx_timeout, |
| 1309 | }; |
| 1310 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1311 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 1312 | static struct net_device * |
| 1313 | mpt_register_lan_device (MPT_ADAPTER *mpt_dev, int pnum) |
| 1314 | { |
Mariusz Kozlowski | 82d1ce5 | 2007-08-10 14:50:53 -0700 | [diff] [blame] | 1315 | struct net_device *dev; |
| 1316 | struct mpt_lan_priv *priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | u8 HWaddr[FC_ALEN], *a; |
| 1318 | |
Mariusz Kozlowski | 82d1ce5 | 2007-08-10 14:50:53 -0700 | [diff] [blame] | 1319 | dev = alloc_fcdev(sizeof(struct mpt_lan_priv)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1320 | if (!dev) |
| 1321 | return NULL; |
| 1322 | |
| 1323 | dev->mtu = MPT_LAN_MTU; |
| 1324 | |
| 1325 | priv = netdev_priv(dev); |
| 1326 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1327 | priv->dev = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1328 | priv->mpt_dev = mpt_dev; |
| 1329 | priv->pnum = pnum; |
| 1330 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1331 | INIT_DELAYED_WORK(&priv->post_buckets_task, |
| 1332 | mpt_lan_post_receive_buckets_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1333 | priv->post_buckets_active = 0; |
| 1334 | |
| 1335 | dlprintk((KERN_INFO MYNAM "@%d: bucketlen = %d\n", |
| 1336 | __LINE__, dev->mtu + dev->hard_header_len + 4)); |
| 1337 | |
| 1338 | atomic_set(&priv->buckets_out, 0); |
| 1339 | priv->total_posted = 0; |
| 1340 | priv->total_received = 0; |
| 1341 | priv->max_buckets_out = max_buckets_out; |
| 1342 | if (mpt_dev->pfacts[0].MaxLanBuckets < max_buckets_out) |
| 1343 | priv->max_buckets_out = mpt_dev->pfacts[0].MaxLanBuckets; |
| 1344 | |
| 1345 | dlprintk((KERN_INFO MYNAM "@%d: MaxLanBuckets=%d, max_buckets_out/priv=%d/%d\n", |
| 1346 | __LINE__, |
| 1347 | mpt_dev->pfacts[0].MaxLanBuckets, |
| 1348 | max_buckets_out, |
| 1349 | priv->max_buckets_out)); |
| 1350 | |
| 1351 | priv->bucketthresh = priv->max_buckets_out * 2 / 3; |
| 1352 | spin_lock_init(&priv->txfidx_lock); |
| 1353 | spin_lock_init(&priv->rxfidx_lock); |
| 1354 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1355 | /* Grab pre-fetched LANPage1 stuff. :-) */ |
| 1356 | a = (u8 *) &mpt_dev->lan_cnfg_page1.HardwareAddressLow; |
| 1357 | |
| 1358 | HWaddr[0] = a[5]; |
| 1359 | HWaddr[1] = a[4]; |
| 1360 | HWaddr[2] = a[3]; |
| 1361 | HWaddr[3] = a[2]; |
| 1362 | HWaddr[4] = a[1]; |
| 1363 | HWaddr[5] = a[0]; |
| 1364 | |
| 1365 | dev->addr_len = FC_ALEN; |
| 1366 | memcpy(dev->dev_addr, HWaddr, FC_ALEN); |
| 1367 | memset(dev->broadcast, 0xff, FC_ALEN); |
| 1368 | |
| 1369 | /* The Tx queue is 127 deep on the 909. |
| 1370 | * Give ourselves some breathing room. |
| 1371 | */ |
| 1372 | priv->tx_max_out = (tx_max_out_p <= MPT_TX_MAX_OUT_LIM) ? |
| 1373 | tx_max_out_p : MPT_TX_MAX_OUT_LIM; |
| 1374 | |
Stephen Hemminger | 4805fc7 | 2009-01-07 18:04:45 -0800 | [diff] [blame] | 1375 | dev->netdev_ops = &mpt_netdev_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1376 | dev->watchdog_timeo = MPT_LAN_TX_TIMEOUT; |
| 1377 | |
| 1378 | dlprintk((KERN_INFO MYNAM ": Finished registering dev " |
| 1379 | "and setting initial values\n")); |
| 1380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1381 | if (register_netdev(dev) != 0) { |
| 1382 | free_netdev(dev); |
| 1383 | dev = NULL; |
| 1384 | } |
| 1385 | return dev; |
| 1386 | } |
| 1387 | |
| 1388 | static int |
| 1389 | mptlan_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
| 1390 | { |
| 1391 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); |
| 1392 | struct net_device *dev; |
| 1393 | int i; |
| 1394 | |
| 1395 | for (i = 0; i < ioc->facts.NumberOfPorts; i++) { |
| 1396 | printk(KERN_INFO MYNAM ": %s: PortNum=%x, " |
| 1397 | "ProtocolFlags=%02Xh (%c%c%c%c)\n", |
| 1398 | ioc->name, ioc->pfacts[i].PortNumber, |
| 1399 | ioc->pfacts[i].ProtocolFlags, |
| 1400 | MPT_PROTOCOL_FLAGS_c_c_c_c( |
| 1401 | ioc->pfacts[i].ProtocolFlags)); |
| 1402 | |
| 1403 | if (!(ioc->pfacts[i].ProtocolFlags & |
| 1404 | MPI_PORTFACTS_PROTOCOL_LAN)) { |
| 1405 | printk(KERN_INFO MYNAM ": %s: Hmmm... LAN protocol " |
| 1406 | "seems to be disabled on this adapter port!\n", |
| 1407 | ioc->name); |
| 1408 | continue; |
| 1409 | } |
| 1410 | |
| 1411 | dev = mpt_register_lan_device(ioc, i); |
| 1412 | if (!dev) { |
| 1413 | printk(KERN_ERR MYNAM ": %s: Unable to register " |
| 1414 | "port%d as a LAN device\n", ioc->name, |
| 1415 | ioc->pfacts[i].PortNumber); |
| 1416 | continue; |
| 1417 | } |
| 1418 | |
| 1419 | printk(KERN_INFO MYNAM ": %s: Fusion MPT LAN device " |
| 1420 | "registered as '%s'\n", ioc->name, dev->name); |
| 1421 | printk(KERN_INFO MYNAM ": %s/%s: " |
Johannes Berg | 7c510e4 | 2008-10-27 17:47:26 -0700 | [diff] [blame] | 1422 | "LanAddr = %pM\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | IOC_AND_NETDEV_NAMES_s_s(dev), |
Johannes Berg | 7c510e4 | 2008-10-27 17:47:26 -0700 | [diff] [blame] | 1424 | dev->dev_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | |
| 1426 | ioc->netdev = dev; |
| 1427 | |
| 1428 | return 0; |
| 1429 | } |
| 1430 | |
| 1431 | return -ENODEV; |
| 1432 | } |
| 1433 | |
| 1434 | static void |
| 1435 | mptlan_remove(struct pci_dev *pdev) |
| 1436 | { |
| 1437 | MPT_ADAPTER *ioc = pci_get_drvdata(pdev); |
| 1438 | struct net_device *dev = ioc->netdev; |
| 1439 | |
| 1440 | if(dev != NULL) { |
| 1441 | unregister_netdev(dev); |
| 1442 | free_netdev(dev); |
| 1443 | } |
| 1444 | } |
| 1445 | |
| 1446 | static struct mpt_pci_driver mptlan_driver = { |
| 1447 | .probe = mptlan_probe, |
| 1448 | .remove = mptlan_remove, |
| 1449 | }; |
| 1450 | |
| 1451 | static int __init mpt_lan_init (void) |
| 1452 | { |
| 1453 | show_mptmod_ver(LANAME, LANVER); |
| 1454 | |
Kashyap, Desai | 213aaca | 2010-07-26 18:57:36 +0530 | [diff] [blame] | 1455 | LanCtx = mpt_register(lan_reply, MPTLAN_DRIVER, |
| 1456 | "lan_reply"); |
| 1457 | if (LanCtx <= 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | printk (KERN_ERR MYNAM ": Failed to register with MPT base driver\n"); |
| 1459 | return -EBUSY; |
| 1460 | } |
| 1461 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | dlprintk((KERN_INFO MYNAM ": assigned context of %d\n", LanCtx)); |
| 1463 | |
| 1464 | if (mpt_reset_register(LanCtx, mpt_lan_ioc_reset)) { |
| 1465 | printk(KERN_ERR MYNAM ": Eieee! unable to register a reset " |
| 1466 | "handler with mptbase! The world is at an end! " |
| 1467 | "Everything is fading to black! Goodbye.\n"); |
| 1468 | return -EBUSY; |
| 1469 | } |
| 1470 | |
| 1471 | dlprintk((KERN_INFO MYNAM ": Registered for IOC reset notifications\n")); |
| 1472 | |
Prakash, Sathya | d6ecdd6 | 2007-07-24 15:47:41 +0530 | [diff] [blame] | 1473 | mpt_device_driver_register(&mptlan_driver, MPTLAN_DRIVER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | return 0; |
| 1475 | } |
| 1476 | |
| 1477 | static void __exit mpt_lan_exit(void) |
| 1478 | { |
| 1479 | mpt_device_driver_deregister(MPTLAN_DRIVER); |
| 1480 | mpt_reset_deregister(LanCtx); |
| 1481 | |
Prakash, Sathya | f606f57 | 2007-08-14 16:12:53 +0530 | [diff] [blame] | 1482 | if (LanCtx) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | mpt_deregister(LanCtx); |
Prakash, Sathya | f606f57 | 2007-08-14 16:12:53 +0530 | [diff] [blame] | 1484 | LanCtx = MPT_MAX_PROTOCOL_DRIVERS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | module_init(mpt_lan_init); |
| 1489 | module_exit(mpt_lan_exit); |
| 1490 | |
| 1491 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |
| 1492 | static unsigned short |
| 1493 | mpt_lan_type_trans(struct sk_buff *skb, struct net_device *dev) |
| 1494 | { |
| 1495 | struct mpt_lan_ohdr *fch = (struct mpt_lan_ohdr *)skb->data; |
| 1496 | struct fcllc *fcllc; |
| 1497 | |
Arnaldo Carvalho de Melo | 459a98e | 2007-03-19 15:30:44 -0700 | [diff] [blame] | 1498 | skb_reset_mac_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | skb_pull(skb, sizeof(struct mpt_lan_ohdr)); |
| 1500 | |
| 1501 | if (fch->dtype == htons(0xffff)) { |
| 1502 | u32 *p = (u32 *) fch; |
| 1503 | |
| 1504 | swab32s(p + 0); |
| 1505 | swab32s(p + 1); |
| 1506 | swab32s(p + 2); |
| 1507 | swab32s(p + 3); |
| 1508 | |
| 1509 | printk (KERN_WARNING MYNAM ": %s: WARNING - Broadcast swap F/W bug detected!\n", |
| 1510 | NETDEV_PTR_TO_IOC_NAME_s(dev)); |
Johannes Berg | 7c510e4 | 2008-10-27 17:47:26 -0700 | [diff] [blame] | 1511 | printk (KERN_WARNING MYNAM ": Please update sender @ MAC_addr = %pM\n", |
| 1512 | fch->saddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1513 | } |
| 1514 | |
| 1515 | if (*fch->daddr & 1) { |
| 1516 | if (!memcmp(fch->daddr, dev->broadcast, FC_ALEN)) { |
| 1517 | skb->pkt_type = PACKET_BROADCAST; |
| 1518 | } else { |
| 1519 | skb->pkt_type = PACKET_MULTICAST; |
| 1520 | } |
| 1521 | } else { |
| 1522 | if (memcmp(fch->daddr, dev->dev_addr, FC_ALEN)) { |
| 1523 | skb->pkt_type = PACKET_OTHERHOST; |
| 1524 | } else { |
| 1525 | skb->pkt_type = PACKET_HOST; |
| 1526 | } |
| 1527 | } |
| 1528 | |
| 1529 | fcllc = (struct fcllc *)skb->data; |
| 1530 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1531 | /* Strip the SNAP header from ARP packets since we don't |
| 1532 | * pass them through to the 802.2/SNAP layers. |
| 1533 | */ |
| 1534 | if (fcllc->dsap == EXTENDED_SAP && |
| 1535 | (fcllc->ethertype == htons(ETH_P_IP) || |
| 1536 | fcllc->ethertype == htons(ETH_P_ARP))) { |
| 1537 | skb_pull(skb, sizeof(struct fcllc)); |
| 1538 | return fcllc->ethertype; |
| 1539 | } |
| 1540 | |
| 1541 | return htons(ETH_P_802_2); |
| 1542 | } |
| 1543 | |
| 1544 | /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ |