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cf4e6363 MC |
1 | /* bnx2i_hwi.c: Broadcom NetXtreme II iSCSI driver. |
2 | * | |
9ebd99c5 | 3 | * Copyright (c) 2006 - 2012 Broadcom Corporation |
cf4e6363 MC |
4 | * Copyright (c) 2007, 2008 Red Hat, Inc. All rights reserved. |
5 | * Copyright (c) 2007, 2008 Mike Christie | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | * Written by: Anil Veerabhadrappa (anilgv@broadcom.com) | |
11cec1e2 | 12 | * Maintained by: Eddie Wai (eddie.wai@broadcom.com) |
cf4e6363 MC |
13 | */ |
14 | ||
5a0e3ad6 | 15 | #include <linux/gfp.h> |
cf4e6363 MC |
16 | #include <scsi/scsi_tcq.h> |
17 | #include <scsi/libiscsi.h> | |
18 | #include "bnx2i.h" | |
19 | ||
b5cf6b63 EW |
20 | DECLARE_PER_CPU(struct bnx2i_percpu_s, bnx2i_percpu); |
21 | ||
cf4e6363 MC |
22 | /** |
23 | * bnx2i_get_cid_num - get cid from ep | |
24 | * @ep: endpoint pointer | |
25 | * | |
26 | * Only applicable to 57710 family of devices | |
27 | */ | |
28 | static u32 bnx2i_get_cid_num(struct bnx2i_endpoint *ep) | |
29 | { | |
30 | u32 cid; | |
31 | ||
32 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) | |
33 | cid = ep->ep_cid; | |
34 | else | |
35 | cid = GET_CID_NUM(ep->ep_cid); | |
36 | return cid; | |
37 | } | |
38 | ||
39 | ||
40 | /** | |
41 | * bnx2i_adjust_qp_size - Adjust SQ/RQ/CQ size for 57710 device type | |
42 | * @hba: Adapter for which adjustments is to be made | |
43 | * | |
44 | * Only applicable to 57710 family of devices | |
45 | */ | |
46 | static void bnx2i_adjust_qp_size(struct bnx2i_hba *hba) | |
47 | { | |
48 | u32 num_elements_per_pg; | |
49 | ||
50 | if (test_bit(BNX2I_NX2_DEV_5706, &hba->cnic_dev_type) || | |
51 | test_bit(BNX2I_NX2_DEV_5708, &hba->cnic_dev_type) || | |
52 | test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) { | |
53 | if (!is_power_of_2(hba->max_sqes)) | |
54 | hba->max_sqes = rounddown_pow_of_two(hba->max_sqes); | |
55 | ||
56 | if (!is_power_of_2(hba->max_rqes)) | |
57 | hba->max_rqes = rounddown_pow_of_two(hba->max_rqes); | |
58 | } | |
59 | ||
60 | /* Adjust each queue size if the user selection does not | |
61 | * yield integral num of page buffers | |
62 | */ | |
63 | /* adjust SQ */ | |
64 | num_elements_per_pg = PAGE_SIZE / BNX2I_SQ_WQE_SIZE; | |
65 | if (hba->max_sqes < num_elements_per_pg) | |
66 | hba->max_sqes = num_elements_per_pg; | |
67 | else if (hba->max_sqes % num_elements_per_pg) | |
68 | hba->max_sqes = (hba->max_sqes + num_elements_per_pg - 1) & | |
69 | ~(num_elements_per_pg - 1); | |
70 | ||
71 | /* adjust CQ */ | |
72 | num_elements_per_pg = PAGE_SIZE / BNX2I_CQE_SIZE; | |
73 | if (hba->max_cqes < num_elements_per_pg) | |
74 | hba->max_cqes = num_elements_per_pg; | |
75 | else if (hba->max_cqes % num_elements_per_pg) | |
76 | hba->max_cqes = (hba->max_cqes + num_elements_per_pg - 1) & | |
77 | ~(num_elements_per_pg - 1); | |
78 | ||
79 | /* adjust RQ */ | |
80 | num_elements_per_pg = PAGE_SIZE / BNX2I_RQ_WQE_SIZE; | |
81 | if (hba->max_rqes < num_elements_per_pg) | |
82 | hba->max_rqes = num_elements_per_pg; | |
83 | else if (hba->max_rqes % num_elements_per_pg) | |
84 | hba->max_rqes = (hba->max_rqes + num_elements_per_pg - 1) & | |
85 | ~(num_elements_per_pg - 1); | |
86 | } | |
87 | ||
88 | ||
89 | /** | |
90 | * bnx2i_get_link_state - get network interface link state | |
91 | * @hba: adapter instance pointer | |
92 | * | |
93 | * updates adapter structure flag based on netdev state | |
94 | */ | |
95 | static void bnx2i_get_link_state(struct bnx2i_hba *hba) | |
96 | { | |
97 | if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state)) | |
98 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
99 | else | |
100 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
101 | } | |
102 | ||
103 | ||
104 | /** | |
105 | * bnx2i_iscsi_license_error - displays iscsi license related error message | |
106 | * @hba: adapter instance pointer | |
107 | * @error_code: error classification | |
108 | * | |
109 | * Puts out an error log when driver is unable to offload iscsi connection | |
110 | * due to license restrictions | |
111 | */ | |
112 | static void bnx2i_iscsi_license_error(struct bnx2i_hba *hba, u32 error_code) | |
113 | { | |
114 | if (error_code == ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED) | |
115 | /* iSCSI offload not supported on this device */ | |
116 | printk(KERN_ERR "bnx2i: iSCSI not supported, dev=%s\n", | |
117 | hba->netdev->name); | |
118 | if (error_code == ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED) | |
119 | /* iSCSI offload not supported on this LOM device */ | |
120 | printk(KERN_ERR "bnx2i: LOM is not enable to " | |
121 | "offload iSCSI connections, dev=%s\n", | |
122 | hba->netdev->name); | |
123 | set_bit(ADAPTER_STATE_INIT_FAILED, &hba->adapter_state); | |
124 | } | |
125 | ||
126 | ||
127 | /** | |
128 | * bnx2i_arm_cq_event_coalescing - arms CQ to enable EQ notification | |
129 | * @ep: endpoint (transport indentifier) structure | |
130 | * @action: action, ARM or DISARM. For now only ARM_CQE is used | |
131 | * | |
132 | * Arm'ing CQ will enable chip to generate global EQ events inorder to interrupt | |
133 | * the driver. EQ event is generated CQ index is hit or at least 1 CQ is | |
134 | * outstanding and on chip timer expires | |
135 | */ | |
b5cf6b63 | 136 | int bnx2i_arm_cq_event_coalescing(struct bnx2i_endpoint *ep, u8 action) |
cf4e6363 MC |
137 | { |
138 | struct bnx2i_5771x_cq_db *cq_db; | |
139 | u16 cq_index; | |
b5cf6b63 | 140 | u16 next_index = 0; |
8776193b | 141 | u32 num_active_cmds; |
cf4e6363 | 142 | |
8776193b | 143 | /* Coalesce CQ entries only on 10G devices */ |
cf4e6363 | 144 | if (!test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) |
b5cf6b63 | 145 | return 0; |
cf4e6363 | 146 | |
8776193b AV |
147 | /* Do not update CQ DB multiple times before firmware writes |
148 | * '0xFFFF' to CQDB->SQN field. Deviation may cause spurious | |
149 | * interrupts and other unwanted results | |
150 | */ | |
151 | cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; | |
8776193b | 152 | |
9ae58e14 EW |
153 | if (action != CNIC_ARM_CQE_FP) |
154 | if (cq_db->sqn[0] && cq_db->sqn[0] != 0xFFFF) | |
b5cf6b63 | 155 | return 0; |
9ae58e14 EW |
156 | |
157 | if (action == CNIC_ARM_CQE || action == CNIC_ARM_CQE_FP) { | |
b5cf6b63 | 158 | num_active_cmds = atomic_read(&ep->num_active_cmds); |
8776193b AV |
159 | if (num_active_cmds <= event_coal_min) |
160 | next_index = 1; | |
b5cf6b63 EW |
161 | else { |
162 | next_index = num_active_cmds >> ep->ec_shift; | |
163 | if (next_index > num_active_cmds - event_coal_min) | |
164 | next_index = num_active_cmds - event_coal_min; | |
165 | } | |
8776193b AV |
166 | if (!next_index) |
167 | next_index = 1; | |
168 | cq_index = ep->qp.cqe_exp_seq_sn + next_index - 1; | |
169 | if (cq_index > ep->qp.cqe_size * 2) | |
170 | cq_index -= ep->qp.cqe_size * 2; | |
171 | if (!cq_index) | |
cf4e6363 | 172 | cq_index = 1; |
8776193b AV |
173 | |
174 | cq_db->sqn[0] = cq_index; | |
cf4e6363 | 175 | } |
b5cf6b63 | 176 | return next_index; |
cf4e6363 MC |
177 | } |
178 | ||
179 | ||
180 | /** | |
181 | * bnx2i_get_rq_buf - copy RQ buffer contents to driver buffer | |
25985edc | 182 | * @conn: iscsi connection on which RQ event occurred |
cf4e6363 MC |
183 | * @ptr: driver buffer to which RQ buffer contents is to |
184 | * be copied | |
185 | * @len: length of valid data inside RQ buf | |
186 | * | |
187 | * Copies RQ buffer contents from shared (DMA'able) memory region to | |
188 | * driver buffer. RQ is used to DMA unsolicitated iscsi pdu's and | |
189 | * scsi sense info | |
190 | */ | |
191 | void bnx2i_get_rq_buf(struct bnx2i_conn *bnx2i_conn, char *ptr, int len) | |
192 | { | |
193 | if (!bnx2i_conn->ep->qp.rqe_left) | |
194 | return; | |
195 | ||
196 | bnx2i_conn->ep->qp.rqe_left--; | |
197 | memcpy(ptr, (u8 *) bnx2i_conn->ep->qp.rq_cons_qe, len); | |
198 | if (bnx2i_conn->ep->qp.rq_cons_qe == bnx2i_conn->ep->qp.rq_last_qe) { | |
199 | bnx2i_conn->ep->qp.rq_cons_qe = bnx2i_conn->ep->qp.rq_first_qe; | |
200 | bnx2i_conn->ep->qp.rq_cons_idx = 0; | |
201 | } else { | |
202 | bnx2i_conn->ep->qp.rq_cons_qe++; | |
203 | bnx2i_conn->ep->qp.rq_cons_idx++; | |
204 | } | |
205 | } | |
206 | ||
207 | ||
208 | static void bnx2i_ring_577xx_doorbell(struct bnx2i_conn *conn) | |
209 | { | |
210 | struct bnx2i_5771x_dbell dbell; | |
211 | u32 msg; | |
212 | ||
213 | memset(&dbell, 0, sizeof(dbell)); | |
214 | dbell.dbell.header = (B577XX_ISCSI_CONNECTION_TYPE << | |
215 | B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT); | |
216 | msg = *((u32 *)&dbell); | |
217 | /* TODO : get doorbell register mapping */ | |
218 | writel(cpu_to_le32(msg), conn->ep->qp.ctx_base); | |
219 | } | |
220 | ||
221 | ||
222 | /** | |
223 | * bnx2i_put_rq_buf - Replenish RQ buffer, if required ring on chip doorbell | |
224 | * @conn: iscsi connection on which event to post | |
225 | * @count: number of RQ buffer being posted to chip | |
226 | * | |
227 | * No need to ring hardware doorbell for 57710 family of devices | |
228 | */ | |
229 | void bnx2i_put_rq_buf(struct bnx2i_conn *bnx2i_conn, int count) | |
230 | { | |
231 | struct bnx2i_5771x_sq_rq_db *rq_db; | |
232 | u16 hi_bit = (bnx2i_conn->ep->qp.rq_prod_idx & 0x8000); | |
233 | struct bnx2i_endpoint *ep = bnx2i_conn->ep; | |
234 | ||
235 | ep->qp.rqe_left += count; | |
236 | ep->qp.rq_prod_idx &= 0x7FFF; | |
237 | ep->qp.rq_prod_idx += count; | |
238 | ||
239 | if (ep->qp.rq_prod_idx > bnx2i_conn->hba->max_rqes) { | |
240 | ep->qp.rq_prod_idx %= bnx2i_conn->hba->max_rqes; | |
241 | if (!hi_bit) | |
242 | ep->qp.rq_prod_idx |= 0x8000; | |
243 | } else | |
244 | ep->qp.rq_prod_idx |= hi_bit; | |
245 | ||
246 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { | |
247 | rq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.rq_pgtbl_virt; | |
248 | rq_db->prod_idx = ep->qp.rq_prod_idx; | |
249 | /* no need to ring hardware doorbell for 57710 */ | |
250 | } else { | |
251 | writew(ep->qp.rq_prod_idx, | |
252 | ep->qp.ctx_base + CNIC_RECV_DOORBELL); | |
253 | } | |
254 | mmiowb(); | |
255 | } | |
256 | ||
257 | ||
258 | /** | |
259 | * bnx2i_ring_sq_dbell - Ring SQ doorbell to wake-up the processing engine | |
260 | * @conn: iscsi connection to which new SQ entries belong | |
261 | * @count: number of SQ WQEs to post | |
262 | * | |
263 | * SQ DB is updated in host memory and TX Doorbell is rung for 57710 family | |
264 | * of devices. For 5706/5708/5709 new SQ WQE count is written into the | |
265 | * doorbell register | |
266 | */ | |
267 | static void bnx2i_ring_sq_dbell(struct bnx2i_conn *bnx2i_conn, int count) | |
268 | { | |
269 | struct bnx2i_5771x_sq_rq_db *sq_db; | |
270 | struct bnx2i_endpoint *ep = bnx2i_conn->ep; | |
271 | ||
b5cf6b63 | 272 | atomic_inc(&ep->num_active_cmds); |
cf4e6363 MC |
273 | wmb(); /* flush SQ WQE memory before the doorbell is rung */ |
274 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { | |
275 | sq_db = (struct bnx2i_5771x_sq_rq_db *) ep->qp.sq_pgtbl_virt; | |
276 | sq_db->prod_idx = ep->qp.sq_prod_idx; | |
277 | bnx2i_ring_577xx_doorbell(bnx2i_conn); | |
278 | } else | |
279 | writew(count, ep->qp.ctx_base + CNIC_SEND_DOORBELL); | |
280 | ||
281 | mmiowb(); /* flush posted PCI writes */ | |
282 | } | |
283 | ||
284 | ||
285 | /** | |
286 | * bnx2i_ring_dbell_update_sq_params - update SQ driver parameters | |
287 | * @conn: iscsi connection to which new SQ entries belong | |
288 | * @count: number of SQ WQEs to post | |
289 | * | |
290 | * this routine will update SQ driver parameters and ring the doorbell | |
291 | */ | |
292 | static void bnx2i_ring_dbell_update_sq_params(struct bnx2i_conn *bnx2i_conn, | |
293 | int count) | |
294 | { | |
295 | int tmp_cnt; | |
296 | ||
297 | if (count == 1) { | |
298 | if (bnx2i_conn->ep->qp.sq_prod_qe == | |
299 | bnx2i_conn->ep->qp.sq_last_qe) | |
300 | bnx2i_conn->ep->qp.sq_prod_qe = | |
301 | bnx2i_conn->ep->qp.sq_first_qe; | |
302 | else | |
303 | bnx2i_conn->ep->qp.sq_prod_qe++; | |
304 | } else { | |
305 | if ((bnx2i_conn->ep->qp.sq_prod_qe + count) <= | |
306 | bnx2i_conn->ep->qp.sq_last_qe) | |
307 | bnx2i_conn->ep->qp.sq_prod_qe += count; | |
308 | else { | |
309 | tmp_cnt = bnx2i_conn->ep->qp.sq_last_qe - | |
310 | bnx2i_conn->ep->qp.sq_prod_qe; | |
311 | bnx2i_conn->ep->qp.sq_prod_qe = | |
312 | &bnx2i_conn->ep->qp.sq_first_qe[count - | |
313 | (tmp_cnt + 1)]; | |
314 | } | |
315 | } | |
316 | bnx2i_conn->ep->qp.sq_prod_idx += count; | |
317 | /* Ring the doorbell */ | |
318 | bnx2i_ring_sq_dbell(bnx2i_conn, bnx2i_conn->ep->qp.sq_prod_idx); | |
319 | } | |
320 | ||
321 | ||
322 | /** | |
323 | * bnx2i_send_iscsi_login - post iSCSI login request MP WQE to hardware | |
324 | * @conn: iscsi connection | |
325 | * @cmd: driver command structure which is requesting | |
326 | * a WQE to sent to chip for further processing | |
327 | * | |
328 | * prepare and post an iSCSI Login request WQE to CNIC firmware | |
329 | */ | |
330 | int bnx2i_send_iscsi_login(struct bnx2i_conn *bnx2i_conn, | |
331 | struct iscsi_task *task) | |
332 | { | |
333 | struct bnx2i_cmd *bnx2i_cmd; | |
334 | struct bnx2i_login_request *login_wqe; | |
12352183 | 335 | struct iscsi_login_req *login_hdr; |
cf4e6363 MC |
336 | u32 dword; |
337 | ||
338 | bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; | |
12352183 | 339 | login_hdr = (struct iscsi_login_req *)task->hdr; |
cf4e6363 MC |
340 | login_wqe = (struct bnx2i_login_request *) |
341 | bnx2i_conn->ep->qp.sq_prod_qe; | |
342 | ||
343 | login_wqe->op_code = login_hdr->opcode; | |
344 | login_wqe->op_attr = login_hdr->flags; | |
345 | login_wqe->version_max = login_hdr->max_version; | |
346 | login_wqe->version_min = login_hdr->min_version; | |
347 | login_wqe->data_length = ntoh24(login_hdr->dlength); | |
348 | login_wqe->isid_lo = *((u32 *) login_hdr->isid); | |
349 | login_wqe->isid_hi = *((u16 *) login_hdr->isid + 2); | |
350 | login_wqe->tsih = login_hdr->tsih; | |
351 | login_wqe->itt = task->itt | | |
352 | (ISCSI_TASK_TYPE_MPATH << ISCSI_LOGIN_REQUEST_TYPE_SHIFT); | |
353 | login_wqe->cid = login_hdr->cid; | |
354 | ||
355 | login_wqe->cmd_sn = be32_to_cpu(login_hdr->cmdsn); | |
356 | login_wqe->exp_stat_sn = be32_to_cpu(login_hdr->exp_statsn); | |
2e15efc7 | 357 | login_wqe->flags = ISCSI_LOGIN_REQUEST_UPDATE_EXP_STAT_SN; |
cf4e6363 MC |
358 | |
359 | login_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; | |
360 | login_wqe->resp_bd_list_addr_hi = | |
361 | (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); | |
362 | ||
363 | dword = ((1 << ISCSI_LOGIN_REQUEST_NUM_RESP_BDS_SHIFT) | | |
364 | (bnx2i_conn->gen_pdu.resp_buf_size << | |
365 | ISCSI_LOGIN_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); | |
366 | login_wqe->resp_buffer = dword; | |
cf4e6363 MC |
367 | login_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; |
368 | login_wqe->bd_list_addr_hi = | |
369 | (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); | |
370 | login_wqe->num_bds = 1; | |
371 | login_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
372 | ||
373 | bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); | |
374 | return 0; | |
375 | } | |
376 | ||
377 | /** | |
378 | * bnx2i_send_iscsi_tmf - post iSCSI task management request MP WQE to hardware | |
379 | * @conn: iscsi connection | |
380 | * @mtask: driver command structure which is requesting | |
381 | * a WQE to sent to chip for further processing | |
382 | * | |
383 | * prepare and post an iSCSI Login request WQE to CNIC firmware | |
384 | */ | |
385 | int bnx2i_send_iscsi_tmf(struct bnx2i_conn *bnx2i_conn, | |
386 | struct iscsi_task *mtask) | |
387 | { | |
388 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
389 | struct iscsi_tm *tmfabort_hdr; | |
390 | struct scsi_cmnd *ref_sc; | |
391 | struct iscsi_task *ctask; | |
392 | struct bnx2i_cmd *bnx2i_cmd; | |
393 | struct bnx2i_tmf_request *tmfabort_wqe; | |
394 | u32 dword; | |
cf464fc5 | 395 | u32 scsi_lun[2]; |
cf4e6363 MC |
396 | |
397 | bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data; | |
398 | tmfabort_hdr = (struct iscsi_tm *)mtask->hdr; | |
399 | tmfabort_wqe = (struct bnx2i_tmf_request *) | |
400 | bnx2i_conn->ep->qp.sq_prod_qe; | |
401 | ||
402 | tmfabort_wqe->op_code = tmfabort_hdr->opcode; | |
c47b4012 | 403 | tmfabort_wqe->op_attr = tmfabort_hdr->flags; |
cf4e6363 MC |
404 | |
405 | tmfabort_wqe->itt = (mtask->itt | (ISCSI_TASK_TYPE_MPATH << 14)); | |
406 | tmfabort_wqe->reserved2 = 0; | |
407 | tmfabort_wqe->cmd_sn = be32_to_cpu(tmfabort_hdr->cmdsn); | |
408 | ||
c47b4012 EW |
409 | switch (tmfabort_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) { |
410 | case ISCSI_TM_FUNC_ABORT_TASK: | |
411 | case ISCSI_TM_FUNC_TASK_REASSIGN: | |
412 | ctask = iscsi_itt_to_task(conn, tmfabort_hdr->rtt); | |
413 | if (!ctask || !ctask->sc) | |
414 | /* | |
415 | * the iscsi layer must have completed the cmd while | |
416 | * was starting up. | |
417 | * | |
418 | * Note: In the case of a SCSI cmd timeout, the task's | |
419 | * sc is still active; hence ctask->sc != 0 | |
420 | * In this case, the task must be aborted | |
421 | */ | |
422 | return 0; | |
423 | ||
424 | ref_sc = ctask->sc; | |
425 | if (ref_sc->sc_data_direction == DMA_TO_DEVICE) | |
426 | dword = (ISCSI_TASK_TYPE_WRITE << | |
427 | ISCSI_CMD_REQUEST_TYPE_SHIFT); | |
428 | else | |
429 | dword = (ISCSI_TASK_TYPE_READ << | |
430 | ISCSI_CMD_REQUEST_TYPE_SHIFT); | |
431 | tmfabort_wqe->ref_itt = (dword | | |
432 | (tmfabort_hdr->rtt & ISCSI_ITT_MASK)); | |
433 | break; | |
434 | default: | |
435 | tmfabort_wqe->ref_itt = RESERVED_ITT; | |
436 | } | |
516f43a2 | 437 | memcpy(scsi_lun, &tmfabort_hdr->lun, sizeof(struct scsi_lun)); |
cf464fc5 EW |
438 | tmfabort_wqe->lun[0] = be32_to_cpu(scsi_lun[0]); |
439 | tmfabort_wqe->lun[1] = be32_to_cpu(scsi_lun[1]); | |
440 | ||
cf4e6363 MC |
441 | tmfabort_wqe->ref_cmd_sn = be32_to_cpu(tmfabort_hdr->refcmdsn); |
442 | ||
443 | tmfabort_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; | |
444 | tmfabort_wqe->bd_list_addr_hi = (u32) | |
445 | ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); | |
446 | tmfabort_wqe->num_bds = 1; | |
447 | tmfabort_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
448 | ||
449 | bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); | |
450 | return 0; | |
451 | } | |
452 | ||
09813ba5 EW |
453 | /** |
454 | * bnx2i_send_iscsi_text - post iSCSI text WQE to hardware | |
455 | * @conn: iscsi connection | |
456 | * @mtask: driver command structure which is requesting | |
457 | * a WQE to sent to chip for further processing | |
458 | * | |
459 | * prepare and post an iSCSI Text request WQE to CNIC firmware | |
460 | */ | |
461 | int bnx2i_send_iscsi_text(struct bnx2i_conn *bnx2i_conn, | |
462 | struct iscsi_task *mtask) | |
463 | { | |
464 | struct bnx2i_cmd *bnx2i_cmd; | |
465 | struct bnx2i_text_request *text_wqe; | |
466 | struct iscsi_text *text_hdr; | |
467 | u32 dword; | |
468 | ||
469 | bnx2i_cmd = (struct bnx2i_cmd *)mtask->dd_data; | |
470 | text_hdr = (struct iscsi_text *)mtask->hdr; | |
471 | text_wqe = (struct bnx2i_text_request *) bnx2i_conn->ep->qp.sq_prod_qe; | |
472 | ||
473 | memset(text_wqe, 0, sizeof(struct bnx2i_text_request)); | |
474 | ||
475 | text_wqe->op_code = text_hdr->opcode; | |
476 | text_wqe->op_attr = text_hdr->flags; | |
477 | text_wqe->data_length = ntoh24(text_hdr->dlength); | |
478 | text_wqe->itt = mtask->itt | | |
479 | (ISCSI_TASK_TYPE_MPATH << ISCSI_TEXT_REQUEST_TYPE_SHIFT); | |
480 | text_wqe->ttt = be32_to_cpu(text_hdr->ttt); | |
481 | ||
482 | text_wqe->cmd_sn = be32_to_cpu(text_hdr->cmdsn); | |
483 | ||
484 | text_wqe->resp_bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.resp_bd_dma; | |
485 | text_wqe->resp_bd_list_addr_hi = | |
486 | (u32) ((u64) bnx2i_conn->gen_pdu.resp_bd_dma >> 32); | |
487 | ||
488 | dword = ((1 << ISCSI_TEXT_REQUEST_NUM_RESP_BDS_SHIFT) | | |
489 | (bnx2i_conn->gen_pdu.resp_buf_size << | |
490 | ISCSI_TEXT_REQUEST_RESP_BUFFER_LENGTH_SHIFT)); | |
491 | text_wqe->resp_buffer = dword; | |
492 | text_wqe->bd_list_addr_lo = (u32) bnx2i_conn->gen_pdu.req_bd_dma; | |
493 | text_wqe->bd_list_addr_hi = | |
494 | (u32) ((u64) bnx2i_conn->gen_pdu.req_bd_dma >> 32); | |
495 | text_wqe->num_bds = 1; | |
496 | text_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
497 | ||
498 | bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); | |
499 | return 0; | |
500 | } | |
501 | ||
502 | ||
cf4e6363 MC |
503 | /** |
504 | * bnx2i_send_iscsi_scsicmd - post iSCSI scsicmd request WQE to hardware | |
505 | * @conn: iscsi connection | |
506 | * @cmd: driver command structure which is requesting | |
507 | * a WQE to sent to chip for further processing | |
508 | * | |
509 | * prepare and post an iSCSI SCSI-CMD request WQE to CNIC firmware | |
510 | */ | |
511 | int bnx2i_send_iscsi_scsicmd(struct bnx2i_conn *bnx2i_conn, | |
512 | struct bnx2i_cmd *cmd) | |
513 | { | |
514 | struct bnx2i_cmd_request *scsi_cmd_wqe; | |
515 | ||
516 | scsi_cmd_wqe = (struct bnx2i_cmd_request *) | |
517 | bnx2i_conn->ep->qp.sq_prod_qe; | |
518 | memcpy(scsi_cmd_wqe, &cmd->req, sizeof(struct bnx2i_cmd_request)); | |
519 | scsi_cmd_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
520 | ||
521 | bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); | |
522 | return 0; | |
523 | } | |
524 | ||
525 | /** | |
526 | * bnx2i_send_iscsi_nopout - post iSCSI NOPOUT request WQE to hardware | |
527 | * @conn: iscsi connection | |
528 | * @cmd: driver command structure which is requesting | |
529 | * a WQE to sent to chip for further processing | |
cf4e6363 MC |
530 | * @datap: payload buffer pointer |
531 | * @data_len: payload data length | |
532 | * @unsol: indicated whether nopout pdu is unsolicited pdu or | |
533 | * in response to target's NOPIN w/ TTT != FFFFFFFF | |
534 | * | |
535 | * prepare and post a nopout request WQE to CNIC firmware | |
536 | */ | |
537 | int bnx2i_send_iscsi_nopout(struct bnx2i_conn *bnx2i_conn, | |
39304072 | 538 | struct iscsi_task *task, |
cf4e6363 MC |
539 | char *datap, int data_len, int unsol) |
540 | { | |
541 | struct bnx2i_endpoint *ep = bnx2i_conn->ep; | |
542 | struct bnx2i_cmd *bnx2i_cmd; | |
543 | struct bnx2i_nop_out_request *nopout_wqe; | |
544 | struct iscsi_nopout *nopout_hdr; | |
545 | ||
546 | bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; | |
547 | nopout_hdr = (struct iscsi_nopout *)task->hdr; | |
548 | nopout_wqe = (struct bnx2i_nop_out_request *)ep->qp.sq_prod_qe; | |
70e14722 EW |
549 | |
550 | memset(nopout_wqe, 0x00, sizeof(struct bnx2i_nop_out_request)); | |
551 | ||
cf4e6363 MC |
552 | nopout_wqe->op_code = nopout_hdr->opcode; |
553 | nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL; | |
516f43a2 | 554 | memcpy(nopout_wqe->lun, &nopout_hdr->lun, 8); |
cf4e6363 MC |
555 | |
556 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { | |
ee15bd2d | 557 | u32 tmp = nopout_wqe->lun[0]; |
cf4e6363 | 558 | /* 57710 requires LUN field to be swapped */ |
ee15bd2d EW |
559 | nopout_wqe->lun[0] = nopout_wqe->lun[1]; |
560 | nopout_wqe->lun[1] = tmp; | |
cf4e6363 MC |
561 | } |
562 | ||
563 | nopout_wqe->itt = ((u16)task->itt | | |
564 | (ISCSI_TASK_TYPE_MPATH << | |
565 | ISCSI_TMF_REQUEST_TYPE_SHIFT)); | |
610602f3 | 566 | nopout_wqe->ttt = be32_to_cpu(nopout_hdr->ttt); |
cf4e6363 MC |
567 | nopout_wqe->flags = 0; |
568 | if (!unsol) | |
569 | nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; | |
570 | else if (nopout_hdr->itt == RESERVED_ITT) | |
571 | nopout_wqe->flags = ISCSI_NOP_OUT_REQUEST_LOCAL_COMPLETION; | |
572 | ||
573 | nopout_wqe->cmd_sn = be32_to_cpu(nopout_hdr->cmdsn); | |
574 | nopout_wqe->data_length = data_len; | |
575 | if (data_len) { | |
576 | /* handle payload data, not required in first release */ | |
577 | printk(KERN_ALERT "NOPOUT: WARNING!! payload len != 0\n"); | |
578 | } else { | |
579 | nopout_wqe->bd_list_addr_lo = (u32) | |
580 | bnx2i_conn->hba->mp_bd_dma; | |
581 | nopout_wqe->bd_list_addr_hi = | |
582 | (u32) ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); | |
583 | nopout_wqe->num_bds = 1; | |
584 | } | |
585 | nopout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
586 | ||
587 | bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); | |
588 | return 0; | |
589 | } | |
590 | ||
591 | ||
592 | /** | |
593 | * bnx2i_send_iscsi_logout - post iSCSI logout request WQE to hardware | |
594 | * @conn: iscsi connection | |
595 | * @cmd: driver command structure which is requesting | |
596 | * a WQE to sent to chip for further processing | |
597 | * | |
598 | * prepare and post logout request WQE to CNIC firmware | |
599 | */ | |
600 | int bnx2i_send_iscsi_logout(struct bnx2i_conn *bnx2i_conn, | |
601 | struct iscsi_task *task) | |
602 | { | |
603 | struct bnx2i_cmd *bnx2i_cmd; | |
604 | struct bnx2i_logout_request *logout_wqe; | |
605 | struct iscsi_logout *logout_hdr; | |
606 | ||
607 | bnx2i_cmd = (struct bnx2i_cmd *)task->dd_data; | |
608 | logout_hdr = (struct iscsi_logout *)task->hdr; | |
609 | ||
610 | logout_wqe = (struct bnx2i_logout_request *) | |
611 | bnx2i_conn->ep->qp.sq_prod_qe; | |
612 | memset(logout_wqe, 0x00, sizeof(struct bnx2i_logout_request)); | |
613 | ||
614 | logout_wqe->op_code = logout_hdr->opcode; | |
615 | logout_wqe->cmd_sn = be32_to_cpu(logout_hdr->cmdsn); | |
616 | logout_wqe->op_attr = | |
617 | logout_hdr->flags | ISCSI_LOGOUT_REQUEST_ALWAYS_ONE; | |
618 | logout_wqe->itt = ((u16)task->itt | | |
619 | (ISCSI_TASK_TYPE_MPATH << | |
620 | ISCSI_LOGOUT_REQUEST_TYPE_SHIFT)); | |
621 | logout_wqe->data_length = 0; | |
622 | logout_wqe->cid = 0; | |
623 | ||
624 | logout_wqe->bd_list_addr_lo = (u32) bnx2i_conn->hba->mp_bd_dma; | |
625 | logout_wqe->bd_list_addr_hi = (u32) | |
626 | ((u64) bnx2i_conn->hba->mp_bd_dma >> 32); | |
627 | logout_wqe->num_bds = 1; | |
628 | logout_wqe->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
629 | ||
2eefb20d EW |
630 | bnx2i_conn->ep->state = EP_STATE_LOGOUT_SENT; |
631 | ||
cf4e6363 MC |
632 | bnx2i_ring_dbell_update_sq_params(bnx2i_conn, 1); |
633 | return 0; | |
634 | } | |
635 | ||
636 | ||
637 | /** | |
638 | * bnx2i_update_iscsi_conn - post iSCSI logout request WQE to hardware | |
639 | * @conn: iscsi connection which requires iscsi parameter update | |
640 | * | |
641 | * sends down iSCSI Conn Update request to move iSCSI conn to FFP | |
642 | */ | |
643 | void bnx2i_update_iscsi_conn(struct iscsi_conn *conn) | |
644 | { | |
645 | struct bnx2i_conn *bnx2i_conn = conn->dd_data; | |
646 | struct bnx2i_hba *hba = bnx2i_conn->hba; | |
647 | struct kwqe *kwqe_arr[2]; | |
648 | struct iscsi_kwqe_conn_update *update_wqe; | |
649 | struct iscsi_kwqe_conn_update conn_update_kwqe; | |
650 | ||
651 | update_wqe = &conn_update_kwqe; | |
652 | ||
653 | update_wqe->hdr.op_code = ISCSI_KWQE_OPCODE_UPDATE_CONN; | |
654 | update_wqe->hdr.flags = | |
655 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
656 | ||
657 | /* 5771x requires conn context id to be passed as is */ | |
658 | if (test_bit(BNX2I_NX2_DEV_57710, &bnx2i_conn->ep->hba->cnic_dev_type)) | |
659 | update_wqe->context_id = bnx2i_conn->ep->ep_cid; | |
660 | else | |
661 | update_wqe->context_id = (bnx2i_conn->ep->ep_cid >> 7); | |
662 | update_wqe->conn_flags = 0; | |
663 | if (conn->hdrdgst_en) | |
664 | update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_HEADER_DIGEST; | |
665 | if (conn->datadgst_en) | |
666 | update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_DATA_DIGEST; | |
667 | if (conn->session->initial_r2t_en) | |
668 | update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_INITIAL_R2T; | |
669 | if (conn->session->imm_data_en) | |
670 | update_wqe->conn_flags |= ISCSI_KWQE_CONN_UPDATE_IMMEDIATE_DATA; | |
671 | ||
672 | update_wqe->max_send_pdu_length = conn->max_xmit_dlength; | |
673 | update_wqe->max_recv_pdu_length = conn->max_recv_dlength; | |
674 | update_wqe->first_burst_length = conn->session->first_burst; | |
675 | update_wqe->max_burst_length = conn->session->max_burst; | |
676 | update_wqe->exp_stat_sn = conn->exp_statsn; | |
677 | update_wqe->max_outstanding_r2ts = conn->session->max_r2t; | |
678 | update_wqe->session_error_recovery_level = conn->session->erl; | |
679 | iscsi_conn_printk(KERN_ALERT, conn, | |
680 | "bnx2i: conn update - MBL 0x%x FBL 0x%x" | |
681 | "MRDSL_I 0x%x MRDSL_T 0x%x \n", | |
682 | update_wqe->max_burst_length, | |
683 | update_wqe->first_burst_length, | |
684 | update_wqe->max_recv_pdu_length, | |
685 | update_wqe->max_send_pdu_length); | |
686 | ||
687 | kwqe_arr[0] = (struct kwqe *) update_wqe; | |
688 | if (hba->cnic && hba->cnic->submit_kwqes) | |
689 | hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); | |
690 | } | |
691 | ||
692 | ||
693 | /** | |
694 | * bnx2i_ep_ofld_timer - post iSCSI logout request WQE to hardware | |
695 | * @data: endpoint (transport handle) structure pointer | |
696 | * | |
697 | * routine to handle connection offload/destroy request timeout | |
698 | */ | |
699 | void bnx2i_ep_ofld_timer(unsigned long data) | |
700 | { | |
701 | struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) data; | |
702 | ||
703 | if (ep->state == EP_STATE_OFLD_START) { | |
704 | printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n"); | |
705 | ep->state = EP_STATE_OFLD_FAILED; | |
706 | } else if (ep->state == EP_STATE_DISCONN_START) { | |
707 | printk(KERN_ALERT "ofld_timer: CONN_DISCON timeout\n"); | |
708 | ep->state = EP_STATE_DISCONN_TIMEDOUT; | |
709 | } else if (ep->state == EP_STATE_CLEANUP_START) { | |
710 | printk(KERN_ALERT "ofld_timer: CONN_CLEANUP timeout\n"); | |
711 | ep->state = EP_STATE_CLEANUP_FAILED; | |
712 | } | |
713 | ||
714 | wake_up_interruptible(&ep->ofld_wait); | |
715 | } | |
716 | ||
717 | ||
718 | static int bnx2i_power_of2(u32 val) | |
719 | { | |
720 | u32 power = 0; | |
721 | if (val & (val - 1)) | |
722 | return power; | |
723 | val--; | |
724 | while (val) { | |
725 | val = val >> 1; | |
726 | power++; | |
727 | } | |
728 | return power; | |
729 | } | |
730 | ||
731 | ||
732 | /** | |
733 | * bnx2i_send_cmd_cleanup_req - send iscsi cmd context clean-up request | |
734 | * @hba: adapter structure pointer | |
735 | * @cmd: driver command structure which is requesting | |
736 | * a WQE to sent to chip for further processing | |
737 | * | |
738 | * prepares and posts CONN_OFLD_REQ1/2 KWQE | |
739 | */ | |
740 | void bnx2i_send_cmd_cleanup_req(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd) | |
741 | { | |
742 | struct bnx2i_cleanup_request *cmd_cleanup; | |
743 | ||
744 | cmd_cleanup = | |
745 | (struct bnx2i_cleanup_request *)cmd->conn->ep->qp.sq_prod_qe; | |
746 | memset(cmd_cleanup, 0x00, sizeof(struct bnx2i_cleanup_request)); | |
747 | ||
748 | cmd_cleanup->op_code = ISCSI_OPCODE_CLEANUP_REQUEST; | |
749 | cmd_cleanup->itt = cmd->req.itt; | |
750 | cmd_cleanup->cq_index = 0; /* CQ# used for completion, 5771x only */ | |
751 | ||
752 | bnx2i_ring_dbell_update_sq_params(cmd->conn, 1); | |
753 | } | |
754 | ||
755 | ||
756 | /** | |
757 | * bnx2i_send_conn_destroy - initiates iscsi connection teardown process | |
758 | * @hba: adapter structure pointer | |
759 | * @ep: endpoint (transport indentifier) structure | |
760 | * | |
761 | * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE to initiate | |
762 | * iscsi connection context clean-up process | |
763 | */ | |
bee34877 | 764 | int bnx2i_send_conn_destroy(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) |
cf4e6363 MC |
765 | { |
766 | struct kwqe *kwqe_arr[2]; | |
767 | struct iscsi_kwqe_conn_destroy conn_cleanup; | |
bee34877 | 768 | int rc = -EINVAL; |
cf4e6363 MC |
769 | |
770 | memset(&conn_cleanup, 0x00, sizeof(struct iscsi_kwqe_conn_destroy)); | |
771 | ||
772 | conn_cleanup.hdr.op_code = ISCSI_KWQE_OPCODE_DESTROY_CONN; | |
773 | conn_cleanup.hdr.flags = | |
774 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
775 | /* 5771x requires conn context id to be passed as is */ | |
776 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) | |
777 | conn_cleanup.context_id = ep->ep_cid; | |
778 | else | |
779 | conn_cleanup.context_id = (ep->ep_cid >> 7); | |
780 | ||
781 | conn_cleanup.reserved0 = (u16)ep->ep_iscsi_cid; | |
782 | ||
783 | kwqe_arr[0] = (struct kwqe *) &conn_cleanup; | |
784 | if (hba->cnic && hba->cnic->submit_kwqes) | |
bee34877 EW |
785 | rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 1); |
786 | ||
787 | return rc; | |
cf4e6363 MC |
788 | } |
789 | ||
790 | ||
791 | /** | |
792 | * bnx2i_570x_send_conn_ofld_req - initiates iscsi conn context setup process | |
793 | * @hba: adapter structure pointer | |
794 | * @ep: endpoint (transport indentifier) structure | |
795 | * | |
796 | * 5706/5708/5709 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE | |
797 | */ | |
bee34877 EW |
798 | static int bnx2i_570x_send_conn_ofld_req(struct bnx2i_hba *hba, |
799 | struct bnx2i_endpoint *ep) | |
cf4e6363 MC |
800 | { |
801 | struct kwqe *kwqe_arr[2]; | |
802 | struct iscsi_kwqe_conn_offload1 ofld_req1; | |
803 | struct iscsi_kwqe_conn_offload2 ofld_req2; | |
804 | dma_addr_t dma_addr; | |
805 | int num_kwqes = 2; | |
806 | u32 *ptbl; | |
bee34877 | 807 | int rc = -EINVAL; |
cf4e6363 MC |
808 | |
809 | ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; | |
810 | ofld_req1.hdr.flags = | |
811 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
812 | ||
813 | ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; | |
814 | ||
815 | dma_addr = ep->qp.sq_pgtbl_phys; | |
816 | ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; | |
817 | ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); | |
818 | ||
819 | dma_addr = ep->qp.cq_pgtbl_phys; | |
820 | ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; | |
821 | ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); | |
822 | ||
823 | ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; | |
824 | ofld_req2.hdr.flags = | |
825 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
826 | ||
827 | dma_addr = ep->qp.rq_pgtbl_phys; | |
828 | ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; | |
829 | ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); | |
830 | ||
831 | ptbl = (u32 *) ep->qp.sq_pgtbl_virt; | |
832 | ||
833 | ofld_req2.sq_first_pte.hi = *ptbl++; | |
834 | ofld_req2.sq_first_pte.lo = *ptbl; | |
835 | ||
836 | ptbl = (u32 *) ep->qp.cq_pgtbl_virt; | |
837 | ofld_req2.cq_first_pte.hi = *ptbl++; | |
838 | ofld_req2.cq_first_pte.lo = *ptbl; | |
839 | ||
840 | kwqe_arr[0] = (struct kwqe *) &ofld_req1; | |
841 | kwqe_arr[1] = (struct kwqe *) &ofld_req2; | |
842 | ofld_req2.num_additional_wqes = 0; | |
843 | ||
844 | if (hba->cnic && hba->cnic->submit_kwqes) | |
bee34877 EW |
845 | rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); |
846 | ||
847 | return rc; | |
cf4e6363 MC |
848 | } |
849 | ||
850 | ||
851 | /** | |
852 | * bnx2i_5771x_send_conn_ofld_req - initiates iscsi connection context creation | |
853 | * @hba: adapter structure pointer | |
854 | * @ep: endpoint (transport indentifier) structure | |
855 | * | |
856 | * 57710 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE | |
857 | */ | |
bee34877 EW |
858 | static int bnx2i_5771x_send_conn_ofld_req(struct bnx2i_hba *hba, |
859 | struct bnx2i_endpoint *ep) | |
cf4e6363 MC |
860 | { |
861 | struct kwqe *kwqe_arr[5]; | |
862 | struct iscsi_kwqe_conn_offload1 ofld_req1; | |
863 | struct iscsi_kwqe_conn_offload2 ofld_req2; | |
864 | struct iscsi_kwqe_conn_offload3 ofld_req3[1]; | |
865 | dma_addr_t dma_addr; | |
866 | int num_kwqes = 2; | |
867 | u32 *ptbl; | |
bee34877 | 868 | int rc = -EINVAL; |
cf4e6363 MC |
869 | |
870 | ofld_req1.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN1; | |
871 | ofld_req1.hdr.flags = | |
872 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
873 | ||
874 | ofld_req1.iscsi_conn_id = (u16) ep->ep_iscsi_cid; | |
875 | ||
876 | dma_addr = ep->qp.sq_pgtbl_phys + ISCSI_SQ_DB_SIZE; | |
877 | ofld_req1.sq_page_table_addr_lo = (u32) dma_addr; | |
878 | ofld_req1.sq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); | |
879 | ||
880 | dma_addr = ep->qp.cq_pgtbl_phys + ISCSI_CQ_DB_SIZE; | |
881 | ofld_req1.cq_page_table_addr_lo = (u32) dma_addr; | |
882 | ofld_req1.cq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); | |
883 | ||
884 | ofld_req2.hdr.op_code = ISCSI_KWQE_OPCODE_OFFLOAD_CONN2; | |
885 | ofld_req2.hdr.flags = | |
886 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
887 | ||
888 | dma_addr = ep->qp.rq_pgtbl_phys + ISCSI_RQ_DB_SIZE; | |
889 | ofld_req2.rq_page_table_addr_lo = (u32) dma_addr; | |
890 | ofld_req2.rq_page_table_addr_hi = (u32) ((u64) dma_addr >> 32); | |
891 | ||
892 | ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); | |
893 | ofld_req2.sq_first_pte.hi = *ptbl++; | |
894 | ofld_req2.sq_first_pte.lo = *ptbl; | |
895 | ||
896 | ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); | |
897 | ofld_req2.cq_first_pte.hi = *ptbl++; | |
898 | ofld_req2.cq_first_pte.lo = *ptbl; | |
899 | ||
900 | kwqe_arr[0] = (struct kwqe *) &ofld_req1; | |
901 | kwqe_arr[1] = (struct kwqe *) &ofld_req2; | |
902 | ||
903 | ofld_req2.num_additional_wqes = 1; | |
904 | memset(ofld_req3, 0x00, sizeof(ofld_req3[0])); | |
905 | ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); | |
906 | ofld_req3[0].qp_first_pte[0].hi = *ptbl++; | |
907 | ofld_req3[0].qp_first_pte[0].lo = *ptbl; | |
908 | ||
909 | kwqe_arr[2] = (struct kwqe *) ofld_req3; | |
910 | /* need if we decide to go with multiple KCQE's per conn */ | |
911 | num_kwqes += 1; | |
912 | ||
913 | if (hba->cnic && hba->cnic->submit_kwqes) | |
bee34877 EW |
914 | rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes); |
915 | ||
916 | return rc; | |
cf4e6363 MC |
917 | } |
918 | ||
919 | /** | |
920 | * bnx2i_send_conn_ofld_req - initiates iscsi connection context setup process | |
921 | * | |
922 | * @hba: adapter structure pointer | |
923 | * @ep: endpoint (transport indentifier) structure | |
924 | * | |
925 | * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE | |
926 | */ | |
bee34877 | 927 | int bnx2i_send_conn_ofld_req(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) |
cf4e6363 | 928 | { |
bee34877 EW |
929 | int rc; |
930 | ||
cf4e6363 | 931 | if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) |
bee34877 | 932 | rc = bnx2i_5771x_send_conn_ofld_req(hba, ep); |
cf4e6363 | 933 | else |
bee34877 EW |
934 | rc = bnx2i_570x_send_conn_ofld_req(hba, ep); |
935 | ||
936 | return rc; | |
cf4e6363 MC |
937 | } |
938 | ||
939 | ||
940 | /** | |
941 | * setup_qp_page_tables - iscsi QP page table setup function | |
942 | * @ep: endpoint (transport indentifier) structure | |
943 | * | |
944 | * Sets up page tables for SQ/RQ/CQ, 1G/sec (5706/5708/5709) devices requires | |
945 | * 64-bit address in big endian format. Whereas 10G/sec (57710) requires | |
946 | * PT in little endian format | |
947 | */ | |
948 | static void setup_qp_page_tables(struct bnx2i_endpoint *ep) | |
949 | { | |
950 | int num_pages; | |
951 | u32 *ptbl; | |
952 | dma_addr_t page; | |
953 | int cnic_dev_10g; | |
954 | ||
955 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) | |
956 | cnic_dev_10g = 1; | |
957 | else | |
958 | cnic_dev_10g = 0; | |
959 | ||
960 | /* SQ page table */ | |
961 | memset(ep->qp.sq_pgtbl_virt, 0, ep->qp.sq_pgtbl_size); | |
962 | num_pages = ep->qp.sq_mem_size / PAGE_SIZE; | |
963 | page = ep->qp.sq_phys; | |
964 | ||
965 | if (cnic_dev_10g) | |
966 | ptbl = (u32 *)((u8 *)ep->qp.sq_pgtbl_virt + ISCSI_SQ_DB_SIZE); | |
967 | else | |
968 | ptbl = (u32 *) ep->qp.sq_pgtbl_virt; | |
969 | while (num_pages--) { | |
970 | if (cnic_dev_10g) { | |
971 | /* PTE is written in little endian format for 57710 */ | |
972 | *ptbl = (u32) page; | |
973 | ptbl++; | |
974 | *ptbl = (u32) ((u64) page >> 32); | |
975 | ptbl++; | |
976 | page += PAGE_SIZE; | |
977 | } else { | |
978 | /* PTE is written in big endian format for | |
979 | * 5706/5708/5709 devices */ | |
980 | *ptbl = (u32) ((u64) page >> 32); | |
981 | ptbl++; | |
982 | *ptbl = (u32) page; | |
983 | ptbl++; | |
984 | page += PAGE_SIZE; | |
985 | } | |
986 | } | |
987 | ||
988 | /* RQ page table */ | |
989 | memset(ep->qp.rq_pgtbl_virt, 0, ep->qp.rq_pgtbl_size); | |
990 | num_pages = ep->qp.rq_mem_size / PAGE_SIZE; | |
991 | page = ep->qp.rq_phys; | |
992 | ||
993 | if (cnic_dev_10g) | |
994 | ptbl = (u32 *)((u8 *)ep->qp.rq_pgtbl_virt + ISCSI_RQ_DB_SIZE); | |
995 | else | |
996 | ptbl = (u32 *) ep->qp.rq_pgtbl_virt; | |
997 | while (num_pages--) { | |
998 | if (cnic_dev_10g) { | |
999 | /* PTE is written in little endian format for 57710 */ | |
1000 | *ptbl = (u32) page; | |
1001 | ptbl++; | |
1002 | *ptbl = (u32) ((u64) page >> 32); | |
1003 | ptbl++; | |
1004 | page += PAGE_SIZE; | |
1005 | } else { | |
1006 | /* PTE is written in big endian format for | |
1007 | * 5706/5708/5709 devices */ | |
1008 | *ptbl = (u32) ((u64) page >> 32); | |
1009 | ptbl++; | |
1010 | *ptbl = (u32) page; | |
1011 | ptbl++; | |
1012 | page += PAGE_SIZE; | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | /* CQ page table */ | |
1017 | memset(ep->qp.cq_pgtbl_virt, 0, ep->qp.cq_pgtbl_size); | |
1018 | num_pages = ep->qp.cq_mem_size / PAGE_SIZE; | |
1019 | page = ep->qp.cq_phys; | |
1020 | ||
1021 | if (cnic_dev_10g) | |
1022 | ptbl = (u32 *)((u8 *)ep->qp.cq_pgtbl_virt + ISCSI_CQ_DB_SIZE); | |
1023 | else | |
1024 | ptbl = (u32 *) ep->qp.cq_pgtbl_virt; | |
1025 | while (num_pages--) { | |
1026 | if (cnic_dev_10g) { | |
1027 | /* PTE is written in little endian format for 57710 */ | |
1028 | *ptbl = (u32) page; | |
1029 | ptbl++; | |
1030 | *ptbl = (u32) ((u64) page >> 32); | |
1031 | ptbl++; | |
1032 | page += PAGE_SIZE; | |
1033 | } else { | |
1034 | /* PTE is written in big endian format for | |
1035 | * 5706/5708/5709 devices */ | |
1036 | *ptbl = (u32) ((u64) page >> 32); | |
1037 | ptbl++; | |
1038 | *ptbl = (u32) page; | |
1039 | ptbl++; | |
1040 | page += PAGE_SIZE; | |
1041 | } | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | ||
1046 | /** | |
1047 | * bnx2i_alloc_qp_resc - allocates required resources for QP. | |
1048 | * @hba: adapter structure pointer | |
1049 | * @ep: endpoint (transport indentifier) structure | |
1050 | * | |
1051 | * Allocate QP (transport layer for iSCSI connection) resources, DMA'able | |
1052 | * memory for SQ/RQ/CQ and page tables. EP structure elements such | |
1053 | * as producer/consumer indexes/pointers, queue sizes and page table | |
1054 | * contents are setup | |
1055 | */ | |
1056 | int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) | |
1057 | { | |
1058 | struct bnx2i_5771x_cq_db *cq_db; | |
1059 | ||
1060 | ep->hba = hba; | |
1061 | ep->conn = NULL; | |
1062 | ep->ep_cid = ep->ep_iscsi_cid = ep->ep_pg_cid = 0; | |
1063 | ||
1064 | /* Allocate page table memory for SQ which is page aligned */ | |
1065 | ep->qp.sq_mem_size = hba->max_sqes * BNX2I_SQ_WQE_SIZE; | |
1066 | ep->qp.sq_mem_size = | |
1067 | (ep->qp.sq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK; | |
1068 | ep->qp.sq_pgtbl_size = | |
1069 | (ep->qp.sq_mem_size / PAGE_SIZE) * sizeof(void *); | |
1070 | ep->qp.sq_pgtbl_size = | |
1071 | (ep->qp.sq_pgtbl_size + (PAGE_SIZE - 1)) & PAGE_MASK; | |
1072 | ||
1073 | ep->qp.sq_pgtbl_virt = | |
1074 | dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, | |
1075 | &ep->qp.sq_pgtbl_phys, GFP_KERNEL); | |
1076 | if (!ep->qp.sq_pgtbl_virt) { | |
1077 | printk(KERN_ALERT "bnx2i: unable to alloc SQ PT mem (%d)\n", | |
1078 | ep->qp.sq_pgtbl_size); | |
1079 | goto mem_alloc_err; | |
1080 | } | |
1081 | ||
1082 | /* Allocate memory area for actual SQ element */ | |
1083 | ep->qp.sq_virt = | |
1084 | dma_alloc_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, | |
1085 | &ep->qp.sq_phys, GFP_KERNEL); | |
1086 | if (!ep->qp.sq_virt) { | |
1087 | printk(KERN_ALERT "bnx2i: unable to alloc SQ BD memory %d\n", | |
1088 | ep->qp.sq_mem_size); | |
1089 | goto mem_alloc_err; | |
1090 | } | |
1091 | ||
1092 | memset(ep->qp.sq_virt, 0x00, ep->qp.sq_mem_size); | |
1093 | ep->qp.sq_first_qe = ep->qp.sq_virt; | |
1094 | ep->qp.sq_prod_qe = ep->qp.sq_first_qe; | |
1095 | ep->qp.sq_cons_qe = ep->qp.sq_first_qe; | |
1096 | ep->qp.sq_last_qe = &ep->qp.sq_first_qe[hba->max_sqes - 1]; | |
1097 | ep->qp.sq_prod_idx = 0; | |
1098 | ep->qp.sq_cons_idx = 0; | |
1099 | ep->qp.sqe_left = hba->max_sqes; | |
1100 | ||
1101 | /* Allocate page table memory for CQ which is page aligned */ | |
1102 | ep->qp.cq_mem_size = hba->max_cqes * BNX2I_CQE_SIZE; | |
1103 | ep->qp.cq_mem_size = | |
1104 | (ep->qp.cq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK; | |
1105 | ep->qp.cq_pgtbl_size = | |
1106 | (ep->qp.cq_mem_size / PAGE_SIZE) * sizeof(void *); | |
1107 | ep->qp.cq_pgtbl_size = | |
1108 | (ep->qp.cq_pgtbl_size + (PAGE_SIZE - 1)) & PAGE_MASK; | |
1109 | ||
1110 | ep->qp.cq_pgtbl_virt = | |
1111 | dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, | |
1112 | &ep->qp.cq_pgtbl_phys, GFP_KERNEL); | |
1113 | if (!ep->qp.cq_pgtbl_virt) { | |
1114 | printk(KERN_ALERT "bnx2i: unable to alloc CQ PT memory %d\n", | |
1115 | ep->qp.cq_pgtbl_size); | |
1116 | goto mem_alloc_err; | |
1117 | } | |
1118 | ||
1119 | /* Allocate memory area for actual CQ element */ | |
1120 | ep->qp.cq_virt = | |
1121 | dma_alloc_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, | |
1122 | &ep->qp.cq_phys, GFP_KERNEL); | |
1123 | if (!ep->qp.cq_virt) { | |
1124 | printk(KERN_ALERT "bnx2i: unable to alloc CQ BD memory %d\n", | |
1125 | ep->qp.cq_mem_size); | |
1126 | goto mem_alloc_err; | |
1127 | } | |
1128 | memset(ep->qp.cq_virt, 0x00, ep->qp.cq_mem_size); | |
1129 | ||
1130 | ep->qp.cq_first_qe = ep->qp.cq_virt; | |
1131 | ep->qp.cq_prod_qe = ep->qp.cq_first_qe; | |
1132 | ep->qp.cq_cons_qe = ep->qp.cq_first_qe; | |
1133 | ep->qp.cq_last_qe = &ep->qp.cq_first_qe[hba->max_cqes - 1]; | |
1134 | ep->qp.cq_prod_idx = 0; | |
1135 | ep->qp.cq_cons_idx = 0; | |
1136 | ep->qp.cqe_left = hba->max_cqes; | |
1137 | ep->qp.cqe_exp_seq_sn = ISCSI_INITIAL_SN; | |
1138 | ep->qp.cqe_size = hba->max_cqes; | |
1139 | ||
1140 | /* Invalidate all EQ CQE index, req only for 57710 */ | |
1141 | cq_db = (struct bnx2i_5771x_cq_db *) ep->qp.cq_pgtbl_virt; | |
1142 | memset(cq_db->sqn, 0xFF, sizeof(cq_db->sqn[0]) * BNX2X_MAX_CQS); | |
1143 | ||
1144 | /* Allocate page table memory for RQ which is page aligned */ | |
1145 | ep->qp.rq_mem_size = hba->max_rqes * BNX2I_RQ_WQE_SIZE; | |
1146 | ep->qp.rq_mem_size = | |
1147 | (ep->qp.rq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK; | |
1148 | ep->qp.rq_pgtbl_size = | |
1149 | (ep->qp.rq_mem_size / PAGE_SIZE) * sizeof(void *); | |
1150 | ep->qp.rq_pgtbl_size = | |
1151 | (ep->qp.rq_pgtbl_size + (PAGE_SIZE - 1)) & PAGE_MASK; | |
1152 | ||
1153 | ep->qp.rq_pgtbl_virt = | |
1154 | dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, | |
1155 | &ep->qp.rq_pgtbl_phys, GFP_KERNEL); | |
1156 | if (!ep->qp.rq_pgtbl_virt) { | |
1157 | printk(KERN_ALERT "bnx2i: unable to alloc RQ PT mem %d\n", | |
1158 | ep->qp.rq_pgtbl_size); | |
1159 | goto mem_alloc_err; | |
1160 | } | |
1161 | ||
1162 | /* Allocate memory area for actual RQ element */ | |
1163 | ep->qp.rq_virt = | |
1164 | dma_alloc_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, | |
1165 | &ep->qp.rq_phys, GFP_KERNEL); | |
1166 | if (!ep->qp.rq_virt) { | |
1167 | printk(KERN_ALERT "bnx2i: unable to alloc RQ BD memory %d\n", | |
1168 | ep->qp.rq_mem_size); | |
1169 | goto mem_alloc_err; | |
1170 | } | |
1171 | ||
1172 | ep->qp.rq_first_qe = ep->qp.rq_virt; | |
1173 | ep->qp.rq_prod_qe = ep->qp.rq_first_qe; | |
1174 | ep->qp.rq_cons_qe = ep->qp.rq_first_qe; | |
1175 | ep->qp.rq_last_qe = &ep->qp.rq_first_qe[hba->max_rqes - 1]; | |
1176 | ep->qp.rq_prod_idx = 0x8000; | |
1177 | ep->qp.rq_cons_idx = 0; | |
1178 | ep->qp.rqe_left = hba->max_rqes; | |
1179 | ||
1180 | setup_qp_page_tables(ep); | |
1181 | ||
1182 | return 0; | |
1183 | ||
1184 | mem_alloc_err: | |
1185 | bnx2i_free_qp_resc(hba, ep); | |
1186 | return -ENOMEM; | |
1187 | } | |
1188 | ||
1189 | ||
1190 | ||
1191 | /** | |
1192 | * bnx2i_free_qp_resc - free memory resources held by QP | |
1193 | * @hba: adapter structure pointer | |
1194 | * @ep: endpoint (transport indentifier) structure | |
1195 | * | |
1196 | * Free QP resources - SQ/RQ/CQ memory and page tables. | |
1197 | */ | |
1198 | void bnx2i_free_qp_resc(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep) | |
1199 | { | |
1200 | if (ep->qp.ctx_base) { | |
1201 | iounmap(ep->qp.ctx_base); | |
1202 | ep->qp.ctx_base = NULL; | |
1203 | } | |
1204 | /* Free SQ mem */ | |
1205 | if (ep->qp.sq_pgtbl_virt) { | |
1206 | dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_pgtbl_size, | |
1207 | ep->qp.sq_pgtbl_virt, ep->qp.sq_pgtbl_phys); | |
1208 | ep->qp.sq_pgtbl_virt = NULL; | |
1209 | ep->qp.sq_pgtbl_phys = 0; | |
1210 | } | |
1211 | if (ep->qp.sq_virt) { | |
1212 | dma_free_coherent(&hba->pcidev->dev, ep->qp.sq_mem_size, | |
1213 | ep->qp.sq_virt, ep->qp.sq_phys); | |
1214 | ep->qp.sq_virt = NULL; | |
1215 | ep->qp.sq_phys = 0; | |
1216 | } | |
1217 | ||
1218 | /* Free RQ mem */ | |
1219 | if (ep->qp.rq_pgtbl_virt) { | |
1220 | dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_pgtbl_size, | |
1221 | ep->qp.rq_pgtbl_virt, ep->qp.rq_pgtbl_phys); | |
1222 | ep->qp.rq_pgtbl_virt = NULL; | |
1223 | ep->qp.rq_pgtbl_phys = 0; | |
1224 | } | |
1225 | if (ep->qp.rq_virt) { | |
1226 | dma_free_coherent(&hba->pcidev->dev, ep->qp.rq_mem_size, | |
1227 | ep->qp.rq_virt, ep->qp.rq_phys); | |
1228 | ep->qp.rq_virt = NULL; | |
1229 | ep->qp.rq_phys = 0; | |
1230 | } | |
1231 | ||
1232 | /* Free CQ mem */ | |
1233 | if (ep->qp.cq_pgtbl_virt) { | |
1234 | dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_pgtbl_size, | |
1235 | ep->qp.cq_pgtbl_virt, ep->qp.cq_pgtbl_phys); | |
1236 | ep->qp.cq_pgtbl_virt = NULL; | |
1237 | ep->qp.cq_pgtbl_phys = 0; | |
1238 | } | |
1239 | if (ep->qp.cq_virt) { | |
1240 | dma_free_coherent(&hba->pcidev->dev, ep->qp.cq_mem_size, | |
1241 | ep->qp.cq_virt, ep->qp.cq_phys); | |
1242 | ep->qp.cq_virt = NULL; | |
1243 | ep->qp.cq_phys = 0; | |
1244 | } | |
1245 | } | |
1246 | ||
1247 | ||
1248 | /** | |
1249 | * bnx2i_send_fw_iscsi_init_msg - initiates initial handshake with iscsi f/w | |
1250 | * @hba: adapter structure pointer | |
1251 | * | |
1252 | * Send down iscsi_init KWQEs which initiates the initial handshake with the f/w | |
1253 | * This results in iSCSi support validation and on-chip context manager | |
1254 | * initialization. Firmware completes this handshake with a CQE carrying | |
1255 | * the result of iscsi support validation. Parameter carried by | |
1256 | * iscsi init request determines the number of offloaded connection and | |
1257 | * tolerance level for iscsi protocol violation this hba/chip can support | |
1258 | */ | |
1259 | int bnx2i_send_fw_iscsi_init_msg(struct bnx2i_hba *hba) | |
1260 | { | |
1261 | struct kwqe *kwqe_arr[3]; | |
1262 | struct iscsi_kwqe_init1 iscsi_init; | |
1263 | struct iscsi_kwqe_init2 iscsi_init2; | |
1264 | int rc = 0; | |
1265 | u64 mask64; | |
1266 | ||
1267 | bnx2i_adjust_qp_size(hba); | |
1268 | ||
1269 | iscsi_init.flags = | |
1270 | ISCSI_PAGE_SIZE_4K << ISCSI_KWQE_INIT1_PAGE_SIZE_SHIFT; | |
1271 | if (en_tcp_dack) | |
1272 | iscsi_init.flags |= ISCSI_KWQE_INIT1_DELAYED_ACK_ENABLE; | |
1273 | iscsi_init.reserved0 = 0; | |
1274 | iscsi_init.num_cqs = 1; | |
1275 | iscsi_init.hdr.op_code = ISCSI_KWQE_OPCODE_INIT1; | |
1276 | iscsi_init.hdr.flags = | |
1277 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
1278 | ||
1279 | iscsi_init.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma; | |
1280 | iscsi_init.dummy_buffer_addr_hi = | |
1281 | (u32) ((u64) hba->dummy_buf_dma >> 32); | |
1282 | ||
7287c63e | 1283 | hba->num_ccell = hba->max_sqes >> 1; |
cf4e6363 MC |
1284 | hba->ctx_ccell_tasks = |
1285 | ((hba->num_ccell & 0xFFFF) | (hba->max_sqes << 16)); | |
1286 | iscsi_init.num_ccells_per_conn = hba->num_ccell; | |
1287 | iscsi_init.num_tasks_per_conn = hba->max_sqes; | |
1288 | iscsi_init.sq_wqes_per_page = PAGE_SIZE / BNX2I_SQ_WQE_SIZE; | |
1289 | iscsi_init.sq_num_wqes = hba->max_sqes; | |
1290 | iscsi_init.cq_log_wqes_per_page = | |
1291 | (u8) bnx2i_power_of2(PAGE_SIZE / BNX2I_CQE_SIZE); | |
1292 | iscsi_init.cq_num_wqes = hba->max_cqes; | |
1293 | iscsi_init.cq_num_pages = (hba->max_cqes * BNX2I_CQE_SIZE + | |
1294 | (PAGE_SIZE - 1)) / PAGE_SIZE; | |
1295 | iscsi_init.sq_num_pages = (hba->max_sqes * BNX2I_SQ_WQE_SIZE + | |
1296 | (PAGE_SIZE - 1)) / PAGE_SIZE; | |
1297 | iscsi_init.rq_buffer_size = BNX2I_RQ_WQE_SIZE; | |
1298 | iscsi_init.rq_num_wqes = hba->max_rqes; | |
1299 | ||
1300 | ||
1301 | iscsi_init2.hdr.op_code = ISCSI_KWQE_OPCODE_INIT2; | |
1302 | iscsi_init2.hdr.flags = | |
1303 | (ISCSI_KWQE_LAYER_CODE << ISCSI_KWQE_HEADER_LAYER_CODE_SHIFT); | |
1304 | iscsi_init2.max_cq_sqn = hba->max_cqes * 2 + 1; | |
1305 | mask64 = 0x0ULL; | |
1306 | mask64 |= ( | |
1307 | /* CISCO MDS */ | |
1308 | (1UL << | |
1309 | ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV) | | |
1310 | /* HP MSA1510i */ | |
1311 | (1UL << | |
1312 | ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN) | | |
1313 | /* EMC */ | |
1314 | (1ULL << ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN)); | |
70fc872c | 1315 | if (error_mask1) { |
cf4e6363 | 1316 | iscsi_init2.error_bit_map[0] = error_mask1; |
70fc872c EW |
1317 | mask64 &= (u32)(~mask64); |
1318 | mask64 |= error_mask1; | |
1319 | } else | |
cf4e6363 MC |
1320 | iscsi_init2.error_bit_map[0] = (u32) mask64; |
1321 | ||
70fc872c | 1322 | if (error_mask2) { |
cf4e6363 | 1323 | iscsi_init2.error_bit_map[1] = error_mask2; |
70fc872c EW |
1324 | mask64 &= 0xffffffff; |
1325 | mask64 |= ((u64)error_mask2 << 32); | |
1326 | } else | |
cf4e6363 MC |
1327 | iscsi_init2.error_bit_map[1] = (u32) (mask64 >> 32); |
1328 | ||
1329 | iscsi_error_mask = mask64; | |
1330 | ||
1331 | kwqe_arr[0] = (struct kwqe *) &iscsi_init; | |
1332 | kwqe_arr[1] = (struct kwqe *) &iscsi_init2; | |
1333 | ||
1334 | if (hba->cnic && hba->cnic->submit_kwqes) | |
1335 | rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, 2); | |
1336 | return rc; | |
1337 | } | |
1338 | ||
1339 | ||
1340 | /** | |
1341 | * bnx2i_process_scsi_cmd_resp - this function handles scsi cmd completion. | |
b5cf6b63 EW |
1342 | * @session: iscsi session |
1343 | * @bnx2i_conn: bnx2i connection | |
cf4e6363 MC |
1344 | * @cqe: pointer to newly DMA'ed CQE entry for processing |
1345 | * | |
1346 | * process SCSI CMD Response CQE & complete the request to SCSI-ML | |
1347 | */ | |
b5cf6b63 EW |
1348 | int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session, |
1349 | struct bnx2i_conn *bnx2i_conn, | |
1350 | struct cqe *cqe) | |
cf4e6363 MC |
1351 | { |
1352 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1353 | struct bnx2i_cmd_response *resp_cqe; | |
1354 | struct bnx2i_cmd *bnx2i_cmd; | |
1355 | struct iscsi_task *task; | |
12352183 | 1356 | struct iscsi_scsi_rsp *hdr; |
cf4e6363 MC |
1357 | u32 datalen = 0; |
1358 | ||
1359 | resp_cqe = (struct bnx2i_cmd_response *)cqe; | |
b5cf6b63 | 1360 | spin_lock_bh(&session->lock); |
cf4e6363 MC |
1361 | task = iscsi_itt_to_task(conn, |
1362 | resp_cqe->itt & ISCSI_CMD_RESPONSE_INDEX); | |
1363 | if (!task) | |
1364 | goto fail; | |
1365 | ||
1366 | bnx2i_cmd = task->dd_data; | |
1367 | ||
1368 | if (bnx2i_cmd->req.op_attr & ISCSI_CMD_REQUEST_READ) { | |
1369 | conn->datain_pdus_cnt += | |
1370 | resp_cqe->task_stat.read_stat.num_data_outs; | |
1371 | conn->rxdata_octets += | |
1372 | bnx2i_cmd->req.total_data_transfer_length; | |
1373 | } else { | |
1374 | conn->dataout_pdus_cnt += | |
1375 | resp_cqe->task_stat.read_stat.num_data_outs; | |
1376 | conn->r2t_pdus_cnt += | |
1377 | resp_cqe->task_stat.read_stat.num_r2ts; | |
1378 | conn->txdata_octets += | |
1379 | bnx2i_cmd->req.total_data_transfer_length; | |
1380 | } | |
1381 | bnx2i_iscsi_unmap_sg_list(bnx2i_cmd); | |
1382 | ||
12352183 | 1383 | hdr = (struct iscsi_scsi_rsp *)task->hdr; |
cf4e6363 MC |
1384 | resp_cqe = (struct bnx2i_cmd_response *)cqe; |
1385 | hdr->opcode = resp_cqe->op_code; | |
1386 | hdr->max_cmdsn = cpu_to_be32(resp_cqe->max_cmd_sn); | |
1387 | hdr->exp_cmdsn = cpu_to_be32(resp_cqe->exp_cmd_sn); | |
1388 | hdr->response = resp_cqe->response; | |
1389 | hdr->cmd_status = resp_cqe->status; | |
1390 | hdr->flags = resp_cqe->response_flags; | |
1391 | hdr->residual_count = cpu_to_be32(resp_cqe->residual_count); | |
1392 | ||
1393 | if (resp_cqe->op_code == ISCSI_OP_SCSI_DATA_IN) | |
1394 | goto done; | |
1395 | ||
1396 | if (resp_cqe->status == SAM_STAT_CHECK_CONDITION) { | |
1397 | datalen = resp_cqe->data_length; | |
1398 | if (datalen < 2) | |
1399 | goto done; | |
1400 | ||
1401 | if (datalen > BNX2I_RQ_WQE_SIZE) { | |
1402 | iscsi_conn_printk(KERN_ERR, conn, | |
1403 | "sense data len %d > RQ sz\n", | |
1404 | datalen); | |
1405 | datalen = BNX2I_RQ_WQE_SIZE; | |
1406 | } else if (datalen > ISCSI_DEF_MAX_RECV_SEG_LEN) { | |
1407 | iscsi_conn_printk(KERN_ERR, conn, | |
1408 | "sense data len %d > conn data\n", | |
1409 | datalen); | |
1410 | datalen = ISCSI_DEF_MAX_RECV_SEG_LEN; | |
1411 | } | |
1412 | ||
1413 | bnx2i_get_rq_buf(bnx2i_cmd->conn, conn->data, datalen); | |
1414 | bnx2i_put_rq_buf(bnx2i_cmd->conn, 1); | |
1415 | } | |
1416 | ||
1417 | done: | |
1418 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, | |
1419 | conn->data, datalen); | |
1420 | fail: | |
b5cf6b63 | 1421 | spin_unlock_bh(&session->lock); |
cf4e6363 MC |
1422 | return 0; |
1423 | } | |
1424 | ||
1425 | ||
1426 | /** | |
1427 | * bnx2i_process_login_resp - this function handles iscsi login response | |
1428 | * @session: iscsi session pointer | |
1429 | * @bnx2i_conn: iscsi connection pointer | |
1430 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1431 | * | |
1432 | * process Login Response CQE & complete it to open-iscsi user daemon | |
1433 | */ | |
1434 | static int bnx2i_process_login_resp(struct iscsi_session *session, | |
1435 | struct bnx2i_conn *bnx2i_conn, | |
1436 | struct cqe *cqe) | |
1437 | { | |
1438 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1439 | struct iscsi_task *task; | |
1440 | struct bnx2i_login_response *login; | |
1441 | struct iscsi_login_rsp *resp_hdr; | |
1442 | int pld_len; | |
1443 | int pad_len; | |
1444 | ||
1445 | login = (struct bnx2i_login_response *) cqe; | |
1446 | spin_lock(&session->lock); | |
1447 | task = iscsi_itt_to_task(conn, | |
1448 | login->itt & ISCSI_LOGIN_RESPONSE_INDEX); | |
1449 | if (!task) | |
1450 | goto done; | |
1451 | ||
1452 | resp_hdr = (struct iscsi_login_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; | |
1453 | memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); | |
1454 | resp_hdr->opcode = login->op_code; | |
1455 | resp_hdr->flags = login->response_flags; | |
1456 | resp_hdr->max_version = login->version_max; | |
a419aef8 | 1457 | resp_hdr->active_version = login->version_active; |
cf4e6363 MC |
1458 | resp_hdr->hlength = 0; |
1459 | ||
1460 | hton24(resp_hdr->dlength, login->data_length); | |
1461 | memcpy(resp_hdr->isid, &login->isid_lo, 6); | |
1462 | resp_hdr->tsih = cpu_to_be16(login->tsih); | |
1463 | resp_hdr->itt = task->hdr->itt; | |
1464 | resp_hdr->statsn = cpu_to_be32(login->stat_sn); | |
1465 | resp_hdr->exp_cmdsn = cpu_to_be32(login->exp_cmd_sn); | |
1466 | resp_hdr->max_cmdsn = cpu_to_be32(login->max_cmd_sn); | |
1467 | resp_hdr->status_class = login->status_class; | |
1468 | resp_hdr->status_detail = login->status_detail; | |
1469 | pld_len = login->data_length; | |
1470 | bnx2i_conn->gen_pdu.resp_wr_ptr = | |
1471 | bnx2i_conn->gen_pdu.resp_buf + pld_len; | |
1472 | ||
1473 | pad_len = 0; | |
1474 | if (pld_len & 0x3) | |
1475 | pad_len = 4 - (pld_len % 4); | |
1476 | ||
1477 | if (pad_len) { | |
1478 | int i = 0; | |
1479 | for (i = 0; i < pad_len; i++) { | |
1480 | bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; | |
1481 | bnx2i_conn->gen_pdu.resp_wr_ptr++; | |
1482 | } | |
1483 | } | |
1484 | ||
1485 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, | |
1486 | bnx2i_conn->gen_pdu.resp_buf, | |
1487 | bnx2i_conn->gen_pdu.resp_wr_ptr - bnx2i_conn->gen_pdu.resp_buf); | |
1488 | done: | |
1489 | spin_unlock(&session->lock); | |
1490 | return 0; | |
1491 | } | |
1492 | ||
09813ba5 EW |
1493 | |
1494 | /** | |
1495 | * bnx2i_process_text_resp - this function handles iscsi text response | |
1496 | * @session: iscsi session pointer | |
1497 | * @bnx2i_conn: iscsi connection pointer | |
1498 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1499 | * | |
1500 | * process iSCSI Text Response CQE& complete it to open-iscsi user daemon | |
1501 | */ | |
1502 | static int bnx2i_process_text_resp(struct iscsi_session *session, | |
1503 | struct bnx2i_conn *bnx2i_conn, | |
1504 | struct cqe *cqe) | |
1505 | { | |
1506 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1507 | struct iscsi_task *task; | |
1508 | struct bnx2i_text_response *text; | |
1509 | struct iscsi_text_rsp *resp_hdr; | |
1510 | int pld_len; | |
1511 | int pad_len; | |
1512 | ||
1513 | text = (struct bnx2i_text_response *) cqe; | |
1514 | spin_lock(&session->lock); | |
1515 | task = iscsi_itt_to_task(conn, text->itt & ISCSI_LOGIN_RESPONSE_INDEX); | |
1516 | if (!task) | |
1517 | goto done; | |
1518 | ||
1519 | resp_hdr = (struct iscsi_text_rsp *)&bnx2i_conn->gen_pdu.resp_hdr; | |
1520 | memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); | |
1521 | resp_hdr->opcode = text->op_code; | |
1522 | resp_hdr->flags = text->response_flags; | |
1523 | resp_hdr->hlength = 0; | |
1524 | ||
1525 | hton24(resp_hdr->dlength, text->data_length); | |
1526 | resp_hdr->itt = task->hdr->itt; | |
1527 | resp_hdr->ttt = cpu_to_be32(text->ttt); | |
1528 | resp_hdr->statsn = task->hdr->exp_statsn; | |
1529 | resp_hdr->exp_cmdsn = cpu_to_be32(text->exp_cmd_sn); | |
1530 | resp_hdr->max_cmdsn = cpu_to_be32(text->max_cmd_sn); | |
1531 | pld_len = text->data_length; | |
1532 | bnx2i_conn->gen_pdu.resp_wr_ptr = bnx2i_conn->gen_pdu.resp_buf + | |
1533 | pld_len; | |
1534 | pad_len = 0; | |
1535 | if (pld_len & 0x3) | |
1536 | pad_len = 4 - (pld_len % 4); | |
1537 | ||
1538 | if (pad_len) { | |
1539 | int i = 0; | |
1540 | for (i = 0; i < pad_len; i++) { | |
1541 | bnx2i_conn->gen_pdu.resp_wr_ptr[0] = 0; | |
1542 | bnx2i_conn->gen_pdu.resp_wr_ptr++; | |
1543 | } | |
1544 | } | |
1545 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, | |
1546 | bnx2i_conn->gen_pdu.resp_buf, | |
1547 | bnx2i_conn->gen_pdu.resp_wr_ptr - | |
1548 | bnx2i_conn->gen_pdu.resp_buf); | |
1549 | done: | |
1550 | spin_unlock(&session->lock); | |
1551 | return 0; | |
1552 | } | |
1553 | ||
1554 | ||
cf4e6363 MC |
1555 | /** |
1556 | * bnx2i_process_tmf_resp - this function handles iscsi TMF response | |
1557 | * @session: iscsi session pointer | |
1558 | * @bnx2i_conn: iscsi connection pointer | |
1559 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1560 | * | |
1561 | * process iSCSI TMF Response CQE and wake up the driver eh thread. | |
1562 | */ | |
1563 | static int bnx2i_process_tmf_resp(struct iscsi_session *session, | |
1564 | struct bnx2i_conn *bnx2i_conn, | |
1565 | struct cqe *cqe) | |
1566 | { | |
1567 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1568 | struct iscsi_task *task; | |
1569 | struct bnx2i_tmf_response *tmf_cqe; | |
1570 | struct iscsi_tm_rsp *resp_hdr; | |
1571 | ||
1572 | tmf_cqe = (struct bnx2i_tmf_response *)cqe; | |
1573 | spin_lock(&session->lock); | |
1574 | task = iscsi_itt_to_task(conn, | |
1575 | tmf_cqe->itt & ISCSI_TMF_RESPONSE_INDEX); | |
1576 | if (!task) | |
1577 | goto done; | |
1578 | ||
1579 | resp_hdr = (struct iscsi_tm_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; | |
1580 | memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); | |
1581 | resp_hdr->opcode = tmf_cqe->op_code; | |
1582 | resp_hdr->max_cmdsn = cpu_to_be32(tmf_cqe->max_cmd_sn); | |
1583 | resp_hdr->exp_cmdsn = cpu_to_be32(tmf_cqe->exp_cmd_sn); | |
1584 | resp_hdr->itt = task->hdr->itt; | |
1585 | resp_hdr->response = tmf_cqe->response; | |
1586 | ||
1587 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); | |
1588 | done: | |
1589 | spin_unlock(&session->lock); | |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | /** | |
1594 | * bnx2i_process_logout_resp - this function handles iscsi logout response | |
1595 | * @session: iscsi session pointer | |
1596 | * @bnx2i_conn: iscsi connection pointer | |
1597 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1598 | * | |
1599 | * process iSCSI Logout Response CQE & make function call to | |
1600 | * notify the user daemon. | |
1601 | */ | |
1602 | static int bnx2i_process_logout_resp(struct iscsi_session *session, | |
1603 | struct bnx2i_conn *bnx2i_conn, | |
1604 | struct cqe *cqe) | |
1605 | { | |
1606 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1607 | struct iscsi_task *task; | |
1608 | struct bnx2i_logout_response *logout; | |
1609 | struct iscsi_logout_rsp *resp_hdr; | |
1610 | ||
1611 | logout = (struct bnx2i_logout_response *) cqe; | |
1612 | spin_lock(&session->lock); | |
1613 | task = iscsi_itt_to_task(conn, | |
1614 | logout->itt & ISCSI_LOGOUT_RESPONSE_INDEX); | |
1615 | if (!task) | |
1616 | goto done; | |
1617 | ||
1618 | resp_hdr = (struct iscsi_logout_rsp *) &bnx2i_conn->gen_pdu.resp_hdr; | |
1619 | memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); | |
1620 | resp_hdr->opcode = logout->op_code; | |
1621 | resp_hdr->flags = logout->response; | |
1622 | resp_hdr->hlength = 0; | |
1623 | ||
1624 | resp_hdr->itt = task->hdr->itt; | |
1625 | resp_hdr->statsn = task->hdr->exp_statsn; | |
1626 | resp_hdr->exp_cmdsn = cpu_to_be32(logout->exp_cmd_sn); | |
1627 | resp_hdr->max_cmdsn = cpu_to_be32(logout->max_cmd_sn); | |
1628 | ||
1629 | resp_hdr->t2wait = cpu_to_be32(logout->time_to_wait); | |
1630 | resp_hdr->t2retain = cpu_to_be32(logout->time_to_retain); | |
1631 | ||
1632 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)resp_hdr, NULL, 0); | |
2eefb20d EW |
1633 | |
1634 | bnx2i_conn->ep->state = EP_STATE_LOGOUT_RESP_RCVD; | |
cf4e6363 MC |
1635 | done: |
1636 | spin_unlock(&session->lock); | |
1637 | return 0; | |
1638 | } | |
1639 | ||
1640 | /** | |
1641 | * bnx2i_process_nopin_local_cmpl - this function handles iscsi nopin CQE | |
1642 | * @session: iscsi session pointer | |
1643 | * @bnx2i_conn: iscsi connection pointer | |
1644 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1645 | * | |
1646 | * process iSCSI NOPIN local completion CQE, frees IIT and command structures | |
1647 | */ | |
1648 | static void bnx2i_process_nopin_local_cmpl(struct iscsi_session *session, | |
1649 | struct bnx2i_conn *bnx2i_conn, | |
1650 | struct cqe *cqe) | |
1651 | { | |
1652 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1653 | struct bnx2i_nop_in_msg *nop_in; | |
1654 | struct iscsi_task *task; | |
1655 | ||
1656 | nop_in = (struct bnx2i_nop_in_msg *)cqe; | |
1657 | spin_lock(&session->lock); | |
1658 | task = iscsi_itt_to_task(conn, | |
1659 | nop_in->itt & ISCSI_NOP_IN_MSG_INDEX); | |
1660 | if (task) | |
8eea2f55 | 1661 | __iscsi_put_task(task); |
cf4e6363 MC |
1662 | spin_unlock(&session->lock); |
1663 | } | |
1664 | ||
1665 | /** | |
1666 | * bnx2i_unsol_pdu_adjust_rq - makes adjustments to RQ after unsol pdu is recvd | |
1667 | * @conn: iscsi connection | |
1668 | * | |
1669 | * Firmware advances RQ producer index for every unsolicited PDU even if | |
1670 | * payload data length is '0'. This function makes corresponding | |
1671 | * adjustments on the driver side to match this f/w behavior | |
1672 | */ | |
1673 | static void bnx2i_unsol_pdu_adjust_rq(struct bnx2i_conn *bnx2i_conn) | |
1674 | { | |
1675 | char dummy_rq_data[2]; | |
1676 | bnx2i_get_rq_buf(bnx2i_conn, dummy_rq_data, 1); | |
1677 | bnx2i_put_rq_buf(bnx2i_conn, 1); | |
1678 | } | |
1679 | ||
1680 | ||
1681 | /** | |
1682 | * bnx2i_process_nopin_mesg - this function handles iscsi nopin CQE | |
1683 | * @session: iscsi session pointer | |
1684 | * @bnx2i_conn: iscsi connection pointer | |
1685 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1686 | * | |
1687 | * process iSCSI target's proactive iSCSI NOPIN request | |
1688 | */ | |
1689 | static int bnx2i_process_nopin_mesg(struct iscsi_session *session, | |
1690 | struct bnx2i_conn *bnx2i_conn, | |
1691 | struct cqe *cqe) | |
1692 | { | |
1693 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1694 | struct iscsi_task *task; | |
1695 | struct bnx2i_nop_in_msg *nop_in; | |
1696 | struct iscsi_nopin *hdr; | |
cf4e6363 MC |
1697 | int tgt_async_nop = 0; |
1698 | ||
1699 | nop_in = (struct bnx2i_nop_in_msg *)cqe; | |
cf4e6363 MC |
1700 | |
1701 | spin_lock(&session->lock); | |
1702 | hdr = (struct iscsi_nopin *)&bnx2i_conn->gen_pdu.resp_hdr; | |
1703 | memset(hdr, 0, sizeof(struct iscsi_hdr)); | |
1704 | hdr->opcode = nop_in->op_code; | |
1705 | hdr->max_cmdsn = cpu_to_be32(nop_in->max_cmd_sn); | |
1706 | hdr->exp_cmdsn = cpu_to_be32(nop_in->exp_cmd_sn); | |
1707 | hdr->ttt = cpu_to_be32(nop_in->ttt); | |
1708 | ||
5ee32576 | 1709 | if (nop_in->itt == (u16) RESERVED_ITT) { |
cf4e6363 MC |
1710 | bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); |
1711 | hdr->itt = RESERVED_ITT; | |
1712 | tgt_async_nop = 1; | |
1713 | goto done; | |
1714 | } | |
1715 | ||
1716 | /* this is a response to one of our nop-outs */ | |
5ee32576 EW |
1717 | task = iscsi_itt_to_task(conn, |
1718 | (itt_t) (nop_in->itt & ISCSI_NOP_IN_MSG_INDEX)); | |
cf4e6363 MC |
1719 | if (task) { |
1720 | hdr->flags = ISCSI_FLAG_CMD_FINAL; | |
1721 | hdr->itt = task->hdr->itt; | |
1722 | hdr->ttt = cpu_to_be32(nop_in->ttt); | |
516f43a2 | 1723 | memcpy(&hdr->lun, nop_in->lun, 8); |
cf4e6363 MC |
1724 | } |
1725 | done: | |
1726 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0); | |
1727 | spin_unlock(&session->lock); | |
1728 | ||
1729 | return tgt_async_nop; | |
1730 | } | |
1731 | ||
1732 | ||
1733 | /** | |
1734 | * bnx2i_process_async_mesg - this function handles iscsi async message | |
1735 | * @session: iscsi session pointer | |
1736 | * @bnx2i_conn: iscsi connection pointer | |
1737 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1738 | * | |
1739 | * process iSCSI ASYNC Message | |
1740 | */ | |
1741 | static void bnx2i_process_async_mesg(struct iscsi_session *session, | |
1742 | struct bnx2i_conn *bnx2i_conn, | |
1743 | struct cqe *cqe) | |
1744 | { | |
1745 | struct bnx2i_async_msg *async_cqe; | |
1746 | struct iscsi_async *resp_hdr; | |
1747 | u8 async_event; | |
1748 | ||
1749 | bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); | |
1750 | ||
1751 | async_cqe = (struct bnx2i_async_msg *)cqe; | |
1752 | async_event = async_cqe->async_event; | |
1753 | ||
1754 | if (async_event == ISCSI_ASYNC_MSG_SCSI_EVENT) { | |
1755 | iscsi_conn_printk(KERN_ALERT, bnx2i_conn->cls_conn->dd_data, | |
1756 | "async: scsi events not supported\n"); | |
1757 | return; | |
1758 | } | |
1759 | ||
1760 | spin_lock(&session->lock); | |
1761 | resp_hdr = (struct iscsi_async *) &bnx2i_conn->gen_pdu.resp_hdr; | |
1762 | memset(resp_hdr, 0, sizeof(struct iscsi_hdr)); | |
1763 | resp_hdr->opcode = async_cqe->op_code; | |
1764 | resp_hdr->flags = 0x80; | |
1765 | ||
516f43a2 | 1766 | memcpy(&resp_hdr->lun, async_cqe->lun, 8); |
cf4e6363 MC |
1767 | resp_hdr->exp_cmdsn = cpu_to_be32(async_cqe->exp_cmd_sn); |
1768 | resp_hdr->max_cmdsn = cpu_to_be32(async_cqe->max_cmd_sn); | |
1769 | ||
1770 | resp_hdr->async_event = async_cqe->async_event; | |
1771 | resp_hdr->async_vcode = async_cqe->async_vcode; | |
1772 | ||
1773 | resp_hdr->param1 = cpu_to_be16(async_cqe->param1); | |
1774 | resp_hdr->param2 = cpu_to_be16(async_cqe->param2); | |
1775 | resp_hdr->param3 = cpu_to_be16(async_cqe->param3); | |
1776 | ||
1777 | __iscsi_complete_pdu(bnx2i_conn->cls_conn->dd_data, | |
1778 | (struct iscsi_hdr *)resp_hdr, NULL, 0); | |
1779 | spin_unlock(&session->lock); | |
1780 | } | |
1781 | ||
1782 | ||
1783 | /** | |
1784 | * bnx2i_process_reject_mesg - process iscsi reject pdu | |
1785 | * @session: iscsi session pointer | |
1786 | * @bnx2i_conn: iscsi connection pointer | |
1787 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1788 | * | |
1789 | * process iSCSI REJECT message | |
1790 | */ | |
1791 | static void bnx2i_process_reject_mesg(struct iscsi_session *session, | |
1792 | struct bnx2i_conn *bnx2i_conn, | |
1793 | struct cqe *cqe) | |
1794 | { | |
1795 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1796 | struct bnx2i_reject_msg *reject; | |
1797 | struct iscsi_reject *hdr; | |
1798 | ||
1799 | reject = (struct bnx2i_reject_msg *) cqe; | |
1800 | if (reject->data_length) { | |
1801 | bnx2i_get_rq_buf(bnx2i_conn, conn->data, reject->data_length); | |
1802 | bnx2i_put_rq_buf(bnx2i_conn, 1); | |
1803 | } else | |
1804 | bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); | |
1805 | ||
1806 | spin_lock(&session->lock); | |
1807 | hdr = (struct iscsi_reject *) &bnx2i_conn->gen_pdu.resp_hdr; | |
1808 | memset(hdr, 0, sizeof(struct iscsi_hdr)); | |
1809 | hdr->opcode = reject->op_code; | |
1810 | hdr->reason = reject->reason; | |
1811 | hton24(hdr->dlength, reject->data_length); | |
1812 | hdr->max_cmdsn = cpu_to_be32(reject->max_cmd_sn); | |
1813 | hdr->exp_cmdsn = cpu_to_be32(reject->exp_cmd_sn); | |
1814 | hdr->ffffffff = cpu_to_be32(RESERVED_ITT); | |
1815 | __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, conn->data, | |
1816 | reject->data_length); | |
1817 | spin_unlock(&session->lock); | |
1818 | } | |
1819 | ||
1820 | /** | |
1821 | * bnx2i_process_cmd_cleanup_resp - process scsi command clean-up completion | |
1822 | * @session: iscsi session pointer | |
1823 | * @bnx2i_conn: iscsi connection pointer | |
1824 | * @cqe: pointer to newly DMA'ed CQE entry for processing | |
1825 | * | |
1826 | * process command cleanup response CQE during conn shutdown or error recovery | |
1827 | */ | |
1828 | static void bnx2i_process_cmd_cleanup_resp(struct iscsi_session *session, | |
1829 | struct bnx2i_conn *bnx2i_conn, | |
1830 | struct cqe *cqe) | |
1831 | { | |
1832 | struct bnx2i_cleanup_response *cmd_clean_rsp; | |
1833 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1834 | struct iscsi_task *task; | |
1835 | ||
1836 | cmd_clean_rsp = (struct bnx2i_cleanup_response *)cqe; | |
1837 | spin_lock(&session->lock); | |
1838 | task = iscsi_itt_to_task(conn, | |
1839 | cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); | |
1840 | if (!task) | |
1841 | printk(KERN_ALERT "bnx2i: cmd clean ITT %x not active\n", | |
1842 | cmd_clean_rsp->itt & ISCSI_CLEANUP_RESPONSE_INDEX); | |
1843 | spin_unlock(&session->lock); | |
1844 | complete(&bnx2i_conn->cmd_cleanup_cmpl); | |
1845 | } | |
1846 | ||
1847 | ||
b5cf6b63 EW |
1848 | /** |
1849 | * bnx2i_percpu_io_thread - thread per cpu for ios | |
1850 | * | |
1851 | * @arg: ptr to bnx2i_percpu_info structure | |
1852 | */ | |
1853 | int bnx2i_percpu_io_thread(void *arg) | |
1854 | { | |
1855 | struct bnx2i_percpu_s *p = arg; | |
1856 | struct bnx2i_work *work, *tmp; | |
1857 | LIST_HEAD(work_list); | |
1858 | ||
1859 | set_user_nice(current, -20); | |
1860 | ||
1861 | while (!kthread_should_stop()) { | |
1862 | spin_lock_bh(&p->p_work_lock); | |
1863 | while (!list_empty(&p->work_list)) { | |
1864 | list_splice_init(&p->work_list, &work_list); | |
1865 | spin_unlock_bh(&p->p_work_lock); | |
1866 | ||
1867 | list_for_each_entry_safe(work, tmp, &work_list, list) { | |
1868 | list_del_init(&work->list); | |
1869 | /* work allocated in the bh, freed here */ | |
1870 | bnx2i_process_scsi_cmd_resp(work->session, | |
1871 | work->bnx2i_conn, | |
1872 | &work->cqe); | |
1873 | atomic_dec(&work->bnx2i_conn->work_cnt); | |
1874 | kfree(work); | |
1875 | } | |
1876 | spin_lock_bh(&p->p_work_lock); | |
1877 | } | |
1878 | set_current_state(TASK_INTERRUPTIBLE); | |
1879 | spin_unlock_bh(&p->p_work_lock); | |
1880 | schedule(); | |
1881 | } | |
1882 | __set_current_state(TASK_RUNNING); | |
1883 | ||
1884 | return 0; | |
1885 | } | |
1886 | ||
1887 | ||
1888 | /** | |
1889 | * bnx2i_queue_scsi_cmd_resp - queue cmd completion to the percpu thread | |
1890 | * @bnx2i_conn: bnx2i connection | |
1891 | * | |
1892 | * this function is called by generic KCQ handler to queue all pending cmd | |
1893 | * completion CQEs | |
1894 | * | |
1895 | * The implementation is to queue the cmd response based on the | |
1896 | * last recorded command for the given connection. The | |
1897 | * cpu_id gets recorded upon task_xmit. No out-of-order completion! | |
1898 | */ | |
1899 | static int bnx2i_queue_scsi_cmd_resp(struct iscsi_session *session, | |
1900 | struct bnx2i_conn *bnx2i_conn, | |
1901 | struct bnx2i_nop_in_msg *cqe) | |
1902 | { | |
1903 | struct bnx2i_work *bnx2i_work = NULL; | |
1904 | struct bnx2i_percpu_s *p = NULL; | |
1905 | struct iscsi_task *task; | |
1906 | struct scsi_cmnd *sc; | |
1907 | int rc = 0; | |
0d83ab65 | 1908 | int cpu; |
b5cf6b63 EW |
1909 | |
1910 | spin_lock(&session->lock); | |
1911 | task = iscsi_itt_to_task(bnx2i_conn->cls_conn->dd_data, | |
1912 | cqe->itt & ISCSI_CMD_RESPONSE_INDEX); | |
a878185c | 1913 | if (!task || !task->sc) { |
b5cf6b63 EW |
1914 | spin_unlock(&session->lock); |
1915 | return -EINVAL; | |
1916 | } | |
1917 | sc = task->sc; | |
b5cf6b63 | 1918 | |
0d83ab65 EW |
1919 | if (!blk_rq_cpu_valid(sc->request)) |
1920 | cpu = smp_processor_id(); | |
1921 | else | |
1922 | cpu = sc->request->cpu; | |
1923 | ||
a878185c EW |
1924 | spin_unlock(&session->lock); |
1925 | ||
0d83ab65 | 1926 | p = &per_cpu(bnx2i_percpu, cpu); |
b5cf6b63 EW |
1927 | spin_lock(&p->p_work_lock); |
1928 | if (unlikely(!p->iothread)) { | |
1929 | rc = -EINVAL; | |
1930 | goto err; | |
1931 | } | |
1932 | /* Alloc and copy to the cqe */ | |
1933 | bnx2i_work = kzalloc(sizeof(struct bnx2i_work), GFP_ATOMIC); | |
1934 | if (bnx2i_work) { | |
1935 | INIT_LIST_HEAD(&bnx2i_work->list); | |
1936 | bnx2i_work->session = session; | |
1937 | bnx2i_work->bnx2i_conn = bnx2i_conn; | |
1938 | memcpy(&bnx2i_work->cqe, cqe, sizeof(struct cqe)); | |
1939 | list_add_tail(&bnx2i_work->list, &p->work_list); | |
1940 | atomic_inc(&bnx2i_conn->work_cnt); | |
1941 | wake_up_process(p->iothread); | |
1942 | spin_unlock(&p->p_work_lock); | |
1943 | goto done; | |
1944 | } else | |
1945 | rc = -ENOMEM; | |
1946 | err: | |
1947 | spin_unlock(&p->p_work_lock); | |
1948 | bnx2i_process_scsi_cmd_resp(session, bnx2i_conn, (struct cqe *)cqe); | |
1949 | done: | |
1950 | return rc; | |
1951 | } | |
1952 | ||
cf4e6363 MC |
1953 | |
1954 | /** | |
1955 | * bnx2i_process_new_cqes - process newly DMA'ed CQE's | |
b5cf6b63 | 1956 | * @bnx2i_conn: bnx2i connection |
cf4e6363 MC |
1957 | * |
1958 | * this function is called by generic KCQ handler to process all pending CQE's | |
1959 | */ | |
b5cf6b63 | 1960 | static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn) |
cf4e6363 MC |
1961 | { |
1962 | struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data; | |
1963 | struct iscsi_session *session = conn->session; | |
b5cf6b63 | 1964 | struct qp_info *qp; |
cf4e6363 MC |
1965 | struct bnx2i_nop_in_msg *nopin; |
1966 | int tgt_async_msg; | |
b5cf6b63 | 1967 | int cqe_cnt = 0; |
cf4e6363 | 1968 | |
b5cf6b63 EW |
1969 | if (bnx2i_conn->ep == NULL) |
1970 | return 0; | |
1971 | ||
1972 | qp = &bnx2i_conn->ep->qp; | |
1973 | ||
1974 | if (!qp->cq_virt) { | |
1975 | printk(KERN_ALERT "bnx2i (%s): cq resr freed in bh execution!", | |
1976 | bnx2i_conn->hba->netdev->name); | |
1977 | goto out; | |
1978 | } | |
cf4e6363 MC |
1979 | while (1) { |
1980 | nopin = (struct bnx2i_nop_in_msg *) qp->cq_cons_qe; | |
1981 | if (nopin->cq_req_sn != qp->cqe_exp_seq_sn) | |
1982 | break; | |
1983 | ||
5ee32576 EW |
1984 | if (unlikely(test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx))) { |
1985 | if (nopin->op_code == ISCSI_OP_NOOP_IN && | |
1986 | nopin->itt == (u16) RESERVED_ITT) { | |
1987 | printk(KERN_ALERT "bnx2i: Unsolicited " | |
1988 | "NOP-In detected for suspended " | |
1989 | "connection dev=%s!\n", | |
1990 | bnx2i_conn->hba->netdev->name); | |
1991 | bnx2i_unsol_pdu_adjust_rq(bnx2i_conn); | |
1992 | goto cqe_out; | |
1993 | } | |
cf4e6363 | 1994 | break; |
5ee32576 | 1995 | } |
cf4e6363 MC |
1996 | tgt_async_msg = 0; |
1997 | ||
1998 | switch (nopin->op_code) { | |
1999 | case ISCSI_OP_SCSI_CMD_RSP: | |
2000 | case ISCSI_OP_SCSI_DATA_IN: | |
b5cf6b63 EW |
2001 | /* Run the kthread engine only for data cmds |
2002 | All other cmds will be completed in this bh! */ | |
2003 | bnx2i_queue_scsi_cmd_resp(session, bnx2i_conn, nopin); | |
cf4e6363 MC |
2004 | break; |
2005 | case ISCSI_OP_LOGIN_RSP: | |
2006 | bnx2i_process_login_resp(session, bnx2i_conn, | |
2007 | qp->cq_cons_qe); | |
2008 | break; | |
2009 | case ISCSI_OP_SCSI_TMFUNC_RSP: | |
2010 | bnx2i_process_tmf_resp(session, bnx2i_conn, | |
2011 | qp->cq_cons_qe); | |
09813ba5 EW |
2012 | break; |
2013 | case ISCSI_OP_TEXT_RSP: | |
2014 | bnx2i_process_text_resp(session, bnx2i_conn, | |
2015 | qp->cq_cons_qe); | |
cf4e6363 MC |
2016 | break; |
2017 | case ISCSI_OP_LOGOUT_RSP: | |
2018 | bnx2i_process_logout_resp(session, bnx2i_conn, | |
2019 | qp->cq_cons_qe); | |
2020 | break; | |
2021 | case ISCSI_OP_NOOP_IN: | |
2022 | if (bnx2i_process_nopin_mesg(session, bnx2i_conn, | |
2023 | qp->cq_cons_qe)) | |
2024 | tgt_async_msg = 1; | |
2025 | break; | |
2026 | case ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION: | |
2027 | bnx2i_process_nopin_local_cmpl(session, bnx2i_conn, | |
2028 | qp->cq_cons_qe); | |
2029 | break; | |
2030 | case ISCSI_OP_ASYNC_EVENT: | |
2031 | bnx2i_process_async_mesg(session, bnx2i_conn, | |
2032 | qp->cq_cons_qe); | |
2033 | tgt_async_msg = 1; | |
2034 | break; | |
2035 | case ISCSI_OP_REJECT: | |
2036 | bnx2i_process_reject_mesg(session, bnx2i_conn, | |
2037 | qp->cq_cons_qe); | |
2038 | break; | |
2039 | case ISCSI_OPCODE_CLEANUP_RESPONSE: | |
2040 | bnx2i_process_cmd_cleanup_resp(session, bnx2i_conn, | |
2041 | qp->cq_cons_qe); | |
2042 | break; | |
2043 | default: | |
2044 | printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", | |
2045 | nopin->op_code); | |
2046 | } | |
b5cf6b63 EW |
2047 | if (!tgt_async_msg) { |
2048 | if (!atomic_read(&bnx2i_conn->ep->num_active_cmds)) | |
2049 | printk(KERN_ALERT "bnx2i (%s): no active cmd! " | |
2050 | "op 0x%x\n", | |
2051 | bnx2i_conn->hba->netdev->name, | |
2052 | nopin->op_code); | |
2053 | else | |
2054 | atomic_dec(&bnx2i_conn->ep->num_active_cmds); | |
2055 | } | |
5ee32576 | 2056 | cqe_out: |
cf4e6363 MC |
2057 | /* clear out in production version only, till beta keep opcode |
2058 | * field intact, will be helpful in debugging (context dump) | |
2059 | * nopin->op_code = 0; | |
2060 | */ | |
b5cf6b63 | 2061 | cqe_cnt++; |
cf4e6363 MC |
2062 | qp->cqe_exp_seq_sn++; |
2063 | if (qp->cqe_exp_seq_sn == (qp->cqe_size * 2 + 1)) | |
2064 | qp->cqe_exp_seq_sn = ISCSI_INITIAL_SN; | |
2065 | ||
2066 | if (qp->cq_cons_qe == qp->cq_last_qe) { | |
2067 | qp->cq_cons_qe = qp->cq_first_qe; | |
2068 | qp->cq_cons_idx = 0; | |
2069 | } else { | |
2070 | qp->cq_cons_qe++; | |
2071 | qp->cq_cons_idx++; | |
2072 | } | |
2073 | } | |
b5cf6b63 EW |
2074 | out: |
2075 | return cqe_cnt; | |
cf4e6363 MC |
2076 | } |
2077 | ||
2078 | /** | |
2079 | * bnx2i_fastpath_notification - process global event queue (KCQ) | |
2080 | * @hba: adapter structure pointer | |
2081 | * @new_cqe_kcqe: pointer to newly DMA'ed KCQE entry | |
2082 | * | |
2083 | * Fast path event notification handler, KCQ entry carries context id | |
2084 | * of the connection that has 1 or more pending CQ entries | |
2085 | */ | |
2086 | static void bnx2i_fastpath_notification(struct bnx2i_hba *hba, | |
2087 | struct iscsi_kcqe *new_cqe_kcqe) | |
2088 | { | |
9ae58e14 | 2089 | struct bnx2i_conn *bnx2i_conn; |
cf4e6363 | 2090 | u32 iscsi_cid; |
b5cf6b63 | 2091 | int nxt_idx; |
cf4e6363 MC |
2092 | |
2093 | iscsi_cid = new_cqe_kcqe->iscsi_conn_id; | |
9ae58e14 | 2094 | bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); |
cf4e6363 | 2095 | |
9ae58e14 | 2096 | if (!bnx2i_conn) { |
cf4e6363 MC |
2097 | printk(KERN_ALERT "cid #%x not valid\n", iscsi_cid); |
2098 | return; | |
2099 | } | |
9ae58e14 | 2100 | if (!bnx2i_conn->ep) { |
cf4e6363 MC |
2101 | printk(KERN_ALERT "cid #%x - ep not bound\n", iscsi_cid); |
2102 | return; | |
2103 | } | |
b5cf6b63 | 2104 | |
9ae58e14 | 2105 | bnx2i_process_new_cqes(bnx2i_conn); |
b5cf6b63 EW |
2106 | nxt_idx = bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, |
2107 | CNIC_ARM_CQE_FP); | |
2108 | if (nxt_idx && nxt_idx == bnx2i_process_new_cqes(bnx2i_conn)) | |
2109 | bnx2i_arm_cq_event_coalescing(bnx2i_conn->ep, CNIC_ARM_CQE_FP); | |
cf4e6363 MC |
2110 | } |
2111 | ||
2112 | ||
2113 | /** | |
2114 | * bnx2i_process_update_conn_cmpl - process iscsi conn update completion KCQE | |
2115 | * @hba: adapter structure pointer | |
2116 | * @update_kcqe: kcqe pointer | |
2117 | * | |
2118 | * CONN_UPDATE completion handler, this completes iSCSI connection FFP migration | |
2119 | */ | |
2120 | static void bnx2i_process_update_conn_cmpl(struct bnx2i_hba *hba, | |
2121 | struct iscsi_kcqe *update_kcqe) | |
2122 | { | |
2123 | struct bnx2i_conn *conn; | |
2124 | u32 iscsi_cid; | |
2125 | ||
2126 | iscsi_cid = update_kcqe->iscsi_conn_id; | |
2127 | conn = bnx2i_get_conn_from_id(hba, iscsi_cid); | |
2128 | ||
2129 | if (!conn) { | |
2130 | printk(KERN_ALERT "conn_update: cid %x not valid\n", iscsi_cid); | |
2131 | return; | |
2132 | } | |
2133 | if (!conn->ep) { | |
2134 | printk(KERN_ALERT "cid %x does not have ep bound\n", iscsi_cid); | |
2135 | return; | |
2136 | } | |
2137 | ||
2138 | if (update_kcqe->completion_status) { | |
2139 | printk(KERN_ALERT "request failed cid %x\n", iscsi_cid); | |
2140 | conn->ep->state = EP_STATE_ULP_UPDATE_FAILED; | |
2141 | } else | |
2142 | conn->ep->state = EP_STATE_ULP_UPDATE_COMPL; | |
2143 | ||
2144 | wake_up_interruptible(&conn->ep->ofld_wait); | |
2145 | } | |
2146 | ||
2147 | ||
2148 | /** | |
2149 | * bnx2i_recovery_que_add_conn - add connection to recovery queue | |
2150 | * @hba: adapter structure pointer | |
2151 | * @bnx2i_conn: iscsi connection | |
2152 | * | |
2153 | * Add connection to recovery queue and schedule adapter eh worker | |
2154 | */ | |
2155 | static void bnx2i_recovery_que_add_conn(struct bnx2i_hba *hba, | |
2156 | struct bnx2i_conn *bnx2i_conn) | |
2157 | { | |
2158 | iscsi_conn_failure(bnx2i_conn->cls_conn->dd_data, | |
2159 | ISCSI_ERR_CONN_FAILED); | |
2160 | } | |
2161 | ||
2162 | ||
2163 | /** | |
2164 | * bnx2i_process_tcp_error - process error notification on a given connection | |
2165 | * | |
2166 | * @hba: adapter structure pointer | |
2167 | * @tcp_err: tcp error kcqe pointer | |
2168 | * | |
2169 | * handles tcp level error notifications from FW. | |
2170 | */ | |
2171 | static void bnx2i_process_tcp_error(struct bnx2i_hba *hba, | |
2172 | struct iscsi_kcqe *tcp_err) | |
2173 | { | |
2174 | struct bnx2i_conn *bnx2i_conn; | |
2175 | u32 iscsi_cid; | |
2176 | ||
2177 | iscsi_cid = tcp_err->iscsi_conn_id; | |
2178 | bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); | |
2179 | ||
2180 | if (!bnx2i_conn) { | |
2181 | printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); | |
2182 | return; | |
2183 | } | |
2184 | ||
2185 | printk(KERN_ALERT "bnx2i - cid 0x%x had TCP errors, error code 0x%x\n", | |
2186 | iscsi_cid, tcp_err->completion_status); | |
2187 | bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); | |
2188 | } | |
2189 | ||
2190 | ||
2191 | /** | |
2192 | * bnx2i_process_iscsi_error - process error notification on a given connection | |
2193 | * @hba: adapter structure pointer | |
2194 | * @iscsi_err: iscsi error kcqe pointer | |
2195 | * | |
2196 | * handles iscsi error notifications from the FW. Firmware based in initial | |
2197 | * handshake classifies iscsi protocol / TCP rfc violation into either | |
2198 | * warning or error indications. If indication is of "Error" type, driver | |
2199 | * will initiate session recovery for that connection/session. For | |
2200 | * "Warning" type indication, driver will put out a system log message | |
2201 | * (there will be only one message for each type for the life of the | |
2202 | * session, this is to avoid un-necessarily overloading the system) | |
2203 | */ | |
2204 | static void bnx2i_process_iscsi_error(struct bnx2i_hba *hba, | |
2205 | struct iscsi_kcqe *iscsi_err) | |
2206 | { | |
2207 | struct bnx2i_conn *bnx2i_conn; | |
2208 | u32 iscsi_cid; | |
2209 | char warn_notice[] = "iscsi_warning"; | |
2210 | char error_notice[] = "iscsi_error"; | |
2211 | char additional_notice[64]; | |
2212 | char *message; | |
2213 | int need_recovery; | |
2214 | u64 err_mask64; | |
2215 | ||
2216 | iscsi_cid = iscsi_err->iscsi_conn_id; | |
2217 | bnx2i_conn = bnx2i_get_conn_from_id(hba, iscsi_cid); | |
2218 | if (!bnx2i_conn) { | |
2219 | printk(KERN_ALERT "bnx2i - cid 0x%x not valid\n", iscsi_cid); | |
2220 | return; | |
2221 | } | |
2222 | ||
2223 | err_mask64 = (0x1ULL << iscsi_err->completion_status); | |
2224 | ||
2225 | if (err_mask64 & iscsi_error_mask) { | |
2226 | need_recovery = 0; | |
2227 | message = warn_notice; | |
2228 | } else { | |
2229 | need_recovery = 1; | |
2230 | message = error_notice; | |
2231 | } | |
2232 | ||
2233 | switch (iscsi_err->completion_status) { | |
2234 | case ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR: | |
2235 | strcpy(additional_notice, "hdr digest err"); | |
2236 | break; | |
2237 | case ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR: | |
2238 | strcpy(additional_notice, "data digest err"); | |
2239 | break; | |
2240 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE: | |
2241 | strcpy(additional_notice, "wrong opcode rcvd"); | |
2242 | break; | |
2243 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN: | |
2244 | strcpy(additional_notice, "AHS len > 0 rcvd"); | |
2245 | break; | |
2246 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT: | |
2247 | strcpy(additional_notice, "invalid ITT rcvd"); | |
2248 | break; | |
2249 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN: | |
2250 | strcpy(additional_notice, "wrong StatSN rcvd"); | |
2251 | break; | |
2252 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN: | |
2253 | strcpy(additional_notice, "wrong DataSN rcvd"); | |
2254 | break; | |
2255 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T: | |
2256 | strcpy(additional_notice, "pend R2T violation"); | |
2257 | break; | |
2258 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0: | |
2259 | strcpy(additional_notice, "ERL0, UO"); | |
2260 | break; | |
2261 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1: | |
2262 | strcpy(additional_notice, "ERL0, U1"); | |
2263 | break; | |
2264 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2: | |
2265 | strcpy(additional_notice, "ERL0, U2"); | |
2266 | break; | |
2267 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3: | |
2268 | strcpy(additional_notice, "ERL0, U3"); | |
2269 | break; | |
2270 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4: | |
2271 | strcpy(additional_notice, "ERL0, U4"); | |
2272 | break; | |
2273 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5: | |
2274 | strcpy(additional_notice, "ERL0, U5"); | |
2275 | break; | |
2276 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6: | |
2277 | strcpy(additional_notice, "ERL0, U6"); | |
2278 | break; | |
2279 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN: | |
2280 | strcpy(additional_notice, "invalid resi len"); | |
2281 | break; | |
2282 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN: | |
2283 | strcpy(additional_notice, "MRDSL violation"); | |
2284 | break; | |
2285 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO: | |
2286 | strcpy(additional_notice, "F-bit not set"); | |
2287 | break; | |
2288 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV: | |
2289 | strcpy(additional_notice, "invalid TTT"); | |
2290 | break; | |
2291 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN: | |
2292 | strcpy(additional_notice, "invalid DataSN"); | |
2293 | break; | |
2294 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN: | |
2295 | strcpy(additional_notice, "burst len violation"); | |
2296 | break; | |
2297 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF: | |
2298 | strcpy(additional_notice, "buf offset violation"); | |
2299 | break; | |
2300 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN: | |
2301 | strcpy(additional_notice, "invalid LUN field"); | |
2302 | break; | |
2303 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN: | |
2304 | strcpy(additional_notice, "invalid R2TSN field"); | |
2305 | break; | |
2306 | #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0 \ | |
2307 | ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 | |
2308 | case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_0: | |
2309 | strcpy(additional_notice, "invalid cmd len1"); | |
2310 | break; | |
2311 | #define BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1 \ | |
2312 | ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 | |
2313 | case BNX2I_ERR_DESIRED_DATA_TRNS_LEN_1: | |
2314 | strcpy(additional_notice, "invalid cmd len2"); | |
2315 | break; | |
2316 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED: | |
2317 | strcpy(additional_notice, | |
2318 | "pend r2t exceeds MaxOutstandingR2T value"); | |
2319 | break; | |
2320 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV: | |
2321 | strcpy(additional_notice, "TTT is rsvd"); | |
2322 | break; | |
2323 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN: | |
2324 | strcpy(additional_notice, "MBL violation"); | |
2325 | break; | |
2326 | #define BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO \ | |
2327 | ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO | |
2328 | case BNX2I_ERR_DATA_SEG_LEN_NOT_ZERO: | |
2329 | strcpy(additional_notice, "data seg len != 0"); | |
2330 | break; | |
2331 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN: | |
2332 | strcpy(additional_notice, "reject pdu len error"); | |
2333 | break; | |
2334 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN: | |
2335 | strcpy(additional_notice, "async pdu len error"); | |
2336 | break; | |
2337 | case ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN: | |
2338 | strcpy(additional_notice, "nopin pdu len error"); | |
2339 | break; | |
2340 | #define BNX2_ERR_PEND_R2T_IN_CLEANUP \ | |
2341 | ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP | |
2342 | case BNX2_ERR_PEND_R2T_IN_CLEANUP: | |
2343 | strcpy(additional_notice, "pend r2t in cleanup"); | |
2344 | break; | |
2345 | ||
2346 | case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT: | |
2347 | strcpy(additional_notice, "IP fragments rcvd"); | |
2348 | break; | |
2349 | case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS: | |
2350 | strcpy(additional_notice, "IP options error"); | |
2351 | break; | |
2352 | case ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG: | |
2353 | strcpy(additional_notice, "urgent flag error"); | |
2354 | break; | |
2355 | default: | |
2356 | printk(KERN_ALERT "iscsi_err - unknown err %x\n", | |
2357 | iscsi_err->completion_status); | |
2358 | } | |
2359 | ||
2360 | if (need_recovery) { | |
2361 | iscsi_conn_printk(KERN_ALERT, | |
2362 | bnx2i_conn->cls_conn->dd_data, | |
2363 | "bnx2i: %s - %s\n", | |
2364 | message, additional_notice); | |
2365 | ||
2366 | iscsi_conn_printk(KERN_ALERT, | |
2367 | bnx2i_conn->cls_conn->dd_data, | |
2368 | "conn_err - hostno %d conn %p, " | |
2369 | "iscsi_cid %x cid %x\n", | |
2370 | bnx2i_conn->hba->shost->host_no, | |
2371 | bnx2i_conn, bnx2i_conn->ep->ep_iscsi_cid, | |
2372 | bnx2i_conn->ep->ep_cid); | |
2373 | bnx2i_recovery_que_add_conn(bnx2i_conn->hba, bnx2i_conn); | |
2374 | } else | |
2375 | if (!test_and_set_bit(iscsi_err->completion_status, | |
2376 | (void *) &bnx2i_conn->violation_notified)) | |
2377 | iscsi_conn_printk(KERN_ALERT, | |
2378 | bnx2i_conn->cls_conn->dd_data, | |
2379 | "bnx2i: %s - %s\n", | |
2380 | message, additional_notice); | |
2381 | } | |
2382 | ||
2383 | ||
2384 | /** | |
2385 | * bnx2i_process_conn_destroy_cmpl - process iscsi conn destroy completion | |
2386 | * @hba: adapter structure pointer | |
2387 | * @conn_destroy: conn destroy kcqe pointer | |
2388 | * | |
2389 | * handles connection destroy completion request. | |
2390 | */ | |
2391 | static void bnx2i_process_conn_destroy_cmpl(struct bnx2i_hba *hba, | |
2392 | struct iscsi_kcqe *conn_destroy) | |
2393 | { | |
2394 | struct bnx2i_endpoint *ep; | |
2395 | ||
2396 | ep = bnx2i_find_ep_in_destroy_list(hba, conn_destroy->iscsi_conn_id); | |
2397 | if (!ep) { | |
2398 | printk(KERN_ALERT "bnx2i_conn_destroy_cmpl: no pending " | |
2399 | "offload request, unexpected complection\n"); | |
2400 | return; | |
2401 | } | |
2402 | ||
2403 | if (hba != ep->hba) { | |
2404 | printk(KERN_ALERT "conn destroy- error hba mis-match\n"); | |
2405 | return; | |
2406 | } | |
2407 | ||
2408 | if (conn_destroy->completion_status) { | |
2409 | printk(KERN_ALERT "conn_destroy_cmpl: op failed\n"); | |
2410 | ep->state = EP_STATE_CLEANUP_FAILED; | |
2411 | } else | |
2412 | ep->state = EP_STATE_CLEANUP_CMPL; | |
2413 | wake_up_interruptible(&ep->ofld_wait); | |
2414 | } | |
2415 | ||
2416 | ||
2417 | /** | |
2418 | * bnx2i_process_ofld_cmpl - process initial iscsi conn offload completion | |
2419 | * @hba: adapter structure pointer | |
2420 | * @ofld_kcqe: conn offload kcqe pointer | |
2421 | * | |
2422 | * handles initial connection offload completion, ep_connect() thread is | |
2423 | * woken-up to continue with LLP connect process | |
2424 | */ | |
2425 | static void bnx2i_process_ofld_cmpl(struct bnx2i_hba *hba, | |
2426 | struct iscsi_kcqe *ofld_kcqe) | |
2427 | { | |
2428 | u32 cid_addr; | |
2429 | struct bnx2i_endpoint *ep; | |
2430 | u32 cid_num; | |
2431 | ||
2432 | ep = bnx2i_find_ep_in_ofld_list(hba, ofld_kcqe->iscsi_conn_id); | |
2433 | if (!ep) { | |
2434 | printk(KERN_ALERT "ofld_cmpl: no pend offload request\n"); | |
2435 | return; | |
2436 | } | |
2437 | ||
2438 | if (hba != ep->hba) { | |
2439 | printk(KERN_ALERT "ofld_cmpl: error hba mis-match\n"); | |
2440 | return; | |
2441 | } | |
2442 | ||
2443 | if (ofld_kcqe->completion_status) { | |
bee34877 | 2444 | ep->state = EP_STATE_OFLD_FAILED; |
cf4e6363 MC |
2445 | if (ofld_kcqe->completion_status == |
2446 | ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) | |
bee34877 EW |
2447 | printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - unable " |
2448 | "to allocate iSCSI context resources\n", | |
2449 | hba->netdev->name); | |
2450 | else if (ofld_kcqe->completion_status == | |
2451 | ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE) | |
2452 | printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid " | |
2453 | "opcode\n", hba->netdev->name); | |
2454 | else if (ofld_kcqe->completion_status == | |
b5cf6b63 | 2455 | ISCSI_KCQE_COMPLETION_STATUS_CID_BUSY) |
bee34877 EW |
2456 | /* error status code valid only for 5771x chipset */ |
2457 | ep->state = EP_STATE_OFLD_FAILED_CID_BUSY; | |
2458 | else | |
2459 | printk(KERN_ALERT "bnx2i (%s): ofld1 cmpl - invalid " | |
2460 | "error code %d\n", hba->netdev->name, | |
2461 | ofld_kcqe->completion_status); | |
cf4e6363 MC |
2462 | } else { |
2463 | ep->state = EP_STATE_OFLD_COMPL; | |
2464 | cid_addr = ofld_kcqe->iscsi_conn_context_id; | |
2465 | cid_num = bnx2i_get_cid_num(ep); | |
2466 | ep->ep_cid = cid_addr; | |
2467 | ep->qp.ctx_base = NULL; | |
2468 | } | |
2469 | wake_up_interruptible(&ep->ofld_wait); | |
2470 | } | |
2471 | ||
2472 | /** | |
2473 | * bnx2i_indicate_kcqe - process iscsi conn update completion KCQE | |
2474 | * @hba: adapter structure pointer | |
2475 | * @update_kcqe: kcqe pointer | |
2476 | * | |
2477 | * Generic KCQ event handler/dispatcher | |
2478 | */ | |
2479 | static void bnx2i_indicate_kcqe(void *context, struct kcqe *kcqe[], | |
2480 | u32 num_cqe) | |
2481 | { | |
2482 | struct bnx2i_hba *hba = context; | |
2483 | int i = 0; | |
2484 | struct iscsi_kcqe *ikcqe = NULL; | |
2485 | ||
2486 | while (i < num_cqe) { | |
2487 | ikcqe = (struct iscsi_kcqe *) kcqe[i++]; | |
2488 | ||
2489 | if (ikcqe->op_code == | |
2490 | ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION) | |
2491 | bnx2i_fastpath_notification(hba, ikcqe); | |
2492 | else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_OFFLOAD_CONN) | |
2493 | bnx2i_process_ofld_cmpl(hba, ikcqe); | |
2494 | else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_UPDATE_CONN) | |
2495 | bnx2i_process_update_conn_cmpl(hba, ikcqe); | |
2496 | else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_INIT) { | |
2497 | if (ikcqe->completion_status != | |
2498 | ISCSI_KCQE_COMPLETION_STATUS_SUCCESS) | |
2499 | bnx2i_iscsi_license_error(hba, ikcqe->\ | |
2500 | completion_status); | |
2501 | else { | |
2502 | set_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
2503 | bnx2i_get_link_state(hba); | |
2504 | printk(KERN_INFO "bnx2i [%.2x:%.2x.%.2x]: " | |
2505 | "ISCSI_INIT passed\n", | |
2506 | (u8)hba->pcidev->bus->number, | |
2507 | hba->pci_devno, | |
2508 | (u8)hba->pci_func); | |
2509 | ||
2510 | ||
2511 | } | |
2512 | } else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_DESTROY_CONN) | |
2513 | bnx2i_process_conn_destroy_cmpl(hba, ikcqe); | |
2514 | else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_ISCSI_ERROR) | |
2515 | bnx2i_process_iscsi_error(hba, ikcqe); | |
2516 | else if (ikcqe->op_code == ISCSI_KCQE_OPCODE_TCP_ERROR) | |
2517 | bnx2i_process_tcp_error(hba, ikcqe); | |
2518 | else | |
2519 | printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n", | |
2520 | ikcqe->op_code); | |
2521 | } | |
2522 | } | |
2523 | ||
2524 | ||
2525 | /** | |
2526 | * bnx2i_indicate_netevent - Generic netdev event handler | |
2527 | * @context: adapter structure pointer | |
2528 | * @event: event type | |
415199f2 | 2529 | * @vlan_id: vlans id - associated vlan id with this event |
cf4e6363 MC |
2530 | * |
2531 | * Handles four netdev events, NETDEV_UP, NETDEV_DOWN, | |
2532 | * NETDEV_GOING_DOWN and NETDEV_CHANGE | |
2533 | */ | |
415199f2 MC |
2534 | static void bnx2i_indicate_netevent(void *context, unsigned long event, |
2535 | u16 vlan_id) | |
cf4e6363 MC |
2536 | { |
2537 | struct bnx2i_hba *hba = context; | |
2538 | ||
415199f2 MC |
2539 | /* Ignore all netevent coming from vlans */ |
2540 | if (vlan_id != 0) | |
2541 | return; | |
2542 | ||
cf4e6363 MC |
2543 | switch (event) { |
2544 | case NETDEV_UP: | |
2545 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) | |
2546 | bnx2i_send_fw_iscsi_init_msg(hba); | |
2547 | break; | |
2548 | case NETDEV_DOWN: | |
2549 | clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); | |
2550 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
2551 | break; | |
2552 | case NETDEV_GOING_DOWN: | |
2553 | set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); | |
2554 | iscsi_host_for_each_session(hba->shost, | |
2555 | bnx2i_drop_session); | |
2556 | break; | |
2557 | case NETDEV_CHANGE: | |
2558 | bnx2i_get_link_state(hba); | |
2559 | break; | |
2560 | default: | |
2561 | ; | |
2562 | } | |
2563 | } | |
2564 | ||
2565 | ||
2566 | /** | |
2567 | * bnx2i_cm_connect_cmpl - process iscsi conn establishment completion | |
2568 | * @cm_sk: cnic sock structure pointer | |
2569 | * | |
2570 | * function callback exported via bnx2i - cnic driver interface to | |
2571 | * indicate completion of option-2 TCP connect request. | |
2572 | */ | |
2573 | static void bnx2i_cm_connect_cmpl(struct cnic_sock *cm_sk) | |
2574 | { | |
2575 | struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; | |
2576 | ||
2577 | if (test_bit(ADAPTER_STATE_GOING_DOWN, &ep->hba->adapter_state)) | |
2578 | ep->state = EP_STATE_CONNECT_FAILED; | |
2579 | else if (test_bit(SK_F_OFFLD_COMPLETE, &cm_sk->flags)) | |
2580 | ep->state = EP_STATE_CONNECT_COMPL; | |
2581 | else | |
2582 | ep->state = EP_STATE_CONNECT_FAILED; | |
2583 | ||
2584 | wake_up_interruptible(&ep->ofld_wait); | |
2585 | } | |
2586 | ||
2587 | ||
2588 | /** | |
2589 | * bnx2i_cm_close_cmpl - process tcp conn close completion | |
2590 | * @cm_sk: cnic sock structure pointer | |
2591 | * | |
2592 | * function callback exported via bnx2i - cnic driver interface to | |
2593 | * indicate completion of option-2 graceful TCP connect shutdown | |
2594 | */ | |
2595 | static void bnx2i_cm_close_cmpl(struct cnic_sock *cm_sk) | |
2596 | { | |
2597 | struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; | |
2598 | ||
2599 | ep->state = EP_STATE_DISCONN_COMPL; | |
2600 | wake_up_interruptible(&ep->ofld_wait); | |
2601 | } | |
2602 | ||
2603 | ||
2604 | /** | |
2605 | * bnx2i_cm_abort_cmpl - process abortive tcp conn teardown completion | |
2606 | * @cm_sk: cnic sock structure pointer | |
2607 | * | |
2608 | * function callback exported via bnx2i - cnic driver interface to | |
2609 | * indicate completion of option-2 abortive TCP connect termination | |
2610 | */ | |
2611 | static void bnx2i_cm_abort_cmpl(struct cnic_sock *cm_sk) | |
2612 | { | |
2613 | struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; | |
2614 | ||
2615 | ep->state = EP_STATE_DISCONN_COMPL; | |
2616 | wake_up_interruptible(&ep->ofld_wait); | |
2617 | } | |
2618 | ||
2619 | ||
2620 | /** | |
2621 | * bnx2i_cm_remote_close - process received TCP FIN | |
2622 | * @hba: adapter structure pointer | |
2623 | * @update_kcqe: kcqe pointer | |
2624 | * | |
2625 | * function callback exported via bnx2i - cnic driver interface to indicate | |
2626 | * async TCP events such as FIN | |
2627 | */ | |
2628 | static void bnx2i_cm_remote_close(struct cnic_sock *cm_sk) | |
2629 | { | |
2630 | struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; | |
2631 | ||
2632 | ep->state = EP_STATE_TCP_FIN_RCVD; | |
2633 | if (ep->conn) | |
2634 | bnx2i_recovery_que_add_conn(ep->hba, ep->conn); | |
2635 | } | |
2636 | ||
2637 | /** | |
2638 | * bnx2i_cm_remote_abort - process TCP RST and start conn cleanup | |
2639 | * @hba: adapter structure pointer | |
2640 | * @update_kcqe: kcqe pointer | |
2641 | * | |
2642 | * function callback exported via bnx2i - cnic driver interface to | |
2643 | * indicate async TCP events (RST) sent by the peer. | |
2644 | */ | |
2645 | static void bnx2i_cm_remote_abort(struct cnic_sock *cm_sk) | |
2646 | { | |
2647 | struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) cm_sk->context; | |
94810e82 | 2648 | u32 old_state = ep->state; |
cf4e6363 MC |
2649 | |
2650 | ep->state = EP_STATE_TCP_RST_RCVD; | |
94810e82 EW |
2651 | if (old_state == EP_STATE_DISCONN_START) |
2652 | wake_up_interruptible(&ep->ofld_wait); | |
2653 | else | |
2654 | if (ep->conn) | |
2655 | bnx2i_recovery_que_add_conn(ep->hba, ep->conn); | |
cf4e6363 MC |
2656 | } |
2657 | ||
2658 | ||
939b82e5 | 2659 | static int bnx2i_send_nl_mesg(void *context, u32 msg_type, |
b5cf6b63 | 2660 | char *buf, u16 buflen) |
cf4e6363 | 2661 | { |
939b82e5 MC |
2662 | struct bnx2i_hba *hba = context; |
2663 | int rc; | |
cf4e6363 | 2664 | |
cf4e6363 | 2665 | if (!hba) |
939b82e5 | 2666 | return -ENODEV; |
cf4e6363 | 2667 | |
939b82e5 MC |
2668 | rc = iscsi_offload_mesg(hba->shost, &bnx2i_iscsi_transport, |
2669 | msg_type, buf, buflen); | |
2670 | if (rc) | |
cf4e6363 MC |
2671 | printk(KERN_ALERT "bnx2i: private nl message send error\n"); |
2672 | ||
939b82e5 | 2673 | return rc; |
cf4e6363 MC |
2674 | } |
2675 | ||
2676 | ||
2677 | /** | |
2678 | * bnx2i_cnic_cb - global template of bnx2i - cnic driver interface structure | |
2679 | * carrying callback function pointers | |
2680 | * | |
2681 | */ | |
2682 | struct cnic_ulp_ops bnx2i_cnic_cb = { | |
2683 | .cnic_init = bnx2i_ulp_init, | |
2684 | .cnic_exit = bnx2i_ulp_exit, | |
2685 | .cnic_start = bnx2i_start, | |
2686 | .cnic_stop = bnx2i_stop, | |
2687 | .indicate_kcqes = bnx2i_indicate_kcqe, | |
2688 | .indicate_netevent = bnx2i_indicate_netevent, | |
2689 | .cm_connect_complete = bnx2i_cm_connect_cmpl, | |
2690 | .cm_close_complete = bnx2i_cm_close_cmpl, | |
2691 | .cm_abort_complete = bnx2i_cm_abort_cmpl, | |
2692 | .cm_remote_close = bnx2i_cm_remote_close, | |
2693 | .cm_remote_abort = bnx2i_cm_remote_abort, | |
2694 | .iscsi_nl_send_msg = bnx2i_send_nl_mesg, | |
2695 | .owner = THIS_MODULE | |
2696 | }; | |
2697 | ||
2698 | ||
2699 | /** | |
2700 | * bnx2i_map_ep_dbell_regs - map connection doorbell registers | |
2701 | * @ep: bnx2i endpoint | |
2702 | * | |
2703 | * maps connection's SQ and RQ doorbell registers, 5706/5708/5709 hosts these | |
2704 | * register in BAR #0. Whereas in 57710 these register are accessed by | |
2705 | * mapping BAR #1 | |
2706 | */ | |
2707 | int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) | |
2708 | { | |
2709 | u32 cid_num; | |
2710 | u32 reg_off; | |
2711 | u32 first_l4l5; | |
2712 | u32 ctx_sz; | |
2713 | u32 config2; | |
2714 | resource_size_t reg_base; | |
2715 | ||
2716 | cid_num = bnx2i_get_cid_num(ep); | |
2717 | ||
2718 | if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) { | |
2719 | reg_base = pci_resource_start(ep->hba->pcidev, | |
2720 | BNX2X_DOORBELL_PCI_BAR); | |
523224a3 DK |
2721 | reg_off = BNX2I_5771X_DBELL_PAGE_SIZE * (cid_num & 0x1FFFF) + |
2722 | DPM_TRIGER_TYPE; | |
cf4e6363 MC |
2723 | ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 4); |
2724 | goto arm_cq; | |
2725 | } | |
2726 | ||
2727 | reg_base = ep->hba->netdev->base_addr; | |
2728 | if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) && | |
2729 | (ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) { | |
2730 | config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2); | |
2731 | first_l4l5 = config2 & BNX2_MQ_CONFIG2_FIRST_L4L5; | |
2732 | ctx_sz = (config2 & BNX2_MQ_CONFIG2_CONT_SZ) >> 3; | |
2733 | if (ctx_sz) | |
2734 | reg_off = CTX_OFFSET + MAX_CID_CNT * MB_KERNEL_CTX_SIZE | |
53203244 | 2735 | + BNX2I_570X_PAGE_SIZE_DEFAULT * |
cf4e6363 MC |
2736 | (((cid_num - first_l4l5) / ctx_sz) + 256); |
2737 | else | |
2738 | reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); | |
2739 | } else | |
2740 | /* 5709 device in normal node and 5706/5708 devices */ | |
2741 | reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); | |
2742 | ||
2743 | ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, | |
2744 | MB_KERNEL_CTX_SIZE); | |
2745 | if (!ep->qp.ctx_base) | |
2746 | return -ENOMEM; | |
2747 | ||
2748 | arm_cq: | |
2749 | bnx2i_arm_cq_event_coalescing(ep, CNIC_ARM_CQE); | |
2750 | return 0; | |
2751 | } |