blob: 08992095ce7ae2a5bfb54d1e151d4634706ff3ed [file] [log] [blame]
Chad Dupuisde909d82015-10-19 15:40:36 -04001/* bnx2fc_hwi.c: QLogic Linux FCoE offload driver.
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002 * This file contains the code that low level functions that interact
3 * with 57712 FCoE firmware.
4 *
Chad Dupuis975860902015-10-19 15:40:35 -04005 * Copyright (c) 2008-2013 Broadcom Corporation
Chad Dupuis21144b82017-06-26 08:59:34 -07006 * Copyright (c) 2014-2016 QLogic Corporation
7 * Copyright (c) 2016-2017 Cavium Inc.
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08008 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation.
12 *
13 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
14 */
15
16#include "bnx2fc.h"
17
18DECLARE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
19
20static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
21 struct fcoe_kcqe *new_cqe_kcqe);
22static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
23 struct fcoe_kcqe *ofld_kcqe);
24static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
25 struct fcoe_kcqe *ofld_kcqe);
26static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code);
27static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -070028 struct fcoe_kcqe *destroy_kcqe);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080029
30int bnx2fc_send_stat_req(struct bnx2fc_hba *hba)
31{
32 struct fcoe_kwqe_stat stat_req;
33 struct kwqe *kwqe_arr[2];
34 int num_kwqes = 1;
35 int rc = 0;
36
37 memset(&stat_req, 0x00, sizeof(struct fcoe_kwqe_stat));
38 stat_req.hdr.op_code = FCOE_KWQE_OPCODE_STAT;
39 stat_req.hdr.flags =
40 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
41
42 stat_req.stat_params_addr_lo = (u32) hba->stats_buf_dma;
43 stat_req.stat_params_addr_hi = (u32) ((u64)hba->stats_buf_dma >> 32);
44
45 kwqe_arr[0] = (struct kwqe *) &stat_req;
46
47 if (hba->cnic && hba->cnic->submit_kwqes)
48 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
49
50 return rc;
51}
52
53/**
54 * bnx2fc_send_fw_fcoe_init_msg - initiates initial handshake with FCoE f/w
55 *
56 * @hba: adapter structure pointer
57 *
58 * Send down FCoE firmware init KWQEs which initiates the initial handshake
59 * with the f/w.
60 *
61 */
62int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
63{
64 struct fcoe_kwqe_init1 fcoe_init1;
65 struct fcoe_kwqe_init2 fcoe_init2;
66 struct fcoe_kwqe_init3 fcoe_init3;
67 struct kwqe *kwqe_arr[3];
68 int num_kwqes = 3;
69 int rc = 0;
70
71 if (!hba->cnic) {
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -070072 printk(KERN_ERR PFX "hba->cnic NULL during fcoe fw init\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080073 return -ENODEV;
74 }
75
76 /* fill init1 KWQE */
77 memset(&fcoe_init1, 0x00, sizeof(struct fcoe_kwqe_init1));
78 fcoe_init1.hdr.op_code = FCOE_KWQE_OPCODE_INIT1;
79 fcoe_init1.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
80 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
81
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +000082 fcoe_init1.num_tasks = hba->max_tasks;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080083 fcoe_init1.sq_num_wqes = BNX2FC_SQ_WQES_MAX;
84 fcoe_init1.rq_num_wqes = BNX2FC_RQ_WQES_MAX;
85 fcoe_init1.rq_buffer_log_size = BNX2FC_RQ_BUF_LOG_SZ;
86 fcoe_init1.cq_num_wqes = BNX2FC_CQ_WQES_MAX;
87 fcoe_init1.dummy_buffer_addr_lo = (u32) hba->dummy_buf_dma;
88 fcoe_init1.dummy_buffer_addr_hi = (u32) ((u64)hba->dummy_buf_dma >> 32);
89 fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
90 fcoe_init1.task_list_pbl_addr_hi =
91 (u32) ((u64) hba->task_ctx_bd_dma >> 32);
Bhanu Gollapudi1294bfe2011-03-17 17:13:34 -070092 fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080093
94 fcoe_init1.flags = (PAGE_SHIFT <<
95 FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);
96
97 fcoe_init1.num_sessions_log = BNX2FC_NUM_MAX_SESS_LOG;
98
99 /* fill init2 KWQE */
100 memset(&fcoe_init2, 0x00, sizeof(struct fcoe_kwqe_init2));
101 fcoe_init2.hdr.op_code = FCOE_KWQE_OPCODE_INIT2;
102 fcoe_init2.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
103 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
104
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300105 fcoe_init2.hsi_major_version = FCOE_HSI_MAJOR_VERSION;
106 fcoe_init2.hsi_minor_version = FCOE_HSI_MINOR_VERSION;
107
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700108
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800109 fcoe_init2.hash_tbl_pbl_addr_lo = (u32) hba->hash_tbl_pbl_dma;
110 fcoe_init2.hash_tbl_pbl_addr_hi = (u32)
111 ((u64) hba->hash_tbl_pbl_dma >> 32);
112
113 fcoe_init2.t2_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_dma;
114 fcoe_init2.t2_hash_tbl_addr_hi = (u32)
115 ((u64) hba->t2_hash_tbl_dma >> 32);
116
117 fcoe_init2.t2_ptr_hash_tbl_addr_lo = (u32) hba->t2_hash_tbl_ptr_dma;
118 fcoe_init2.t2_ptr_hash_tbl_addr_hi = (u32)
119 ((u64) hba->t2_hash_tbl_ptr_dma >> 32);
120
121 fcoe_init2.free_list_count = BNX2FC_NUM_MAX_SESS;
122
123 /* fill init3 KWQE */
124 memset(&fcoe_init3, 0x00, sizeof(struct fcoe_kwqe_init3));
125 fcoe_init3.hdr.op_code = FCOE_KWQE_OPCODE_INIT3;
126 fcoe_init3.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
127 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
128 fcoe_init3.error_bit_map_lo = 0xffffffff;
129 fcoe_init3.error_bit_map_hi = 0xffffffff;
130
Bhanu Prakash Gollapudi353c2ad2013-03-08 13:28:50 -0800131 /*
132 * enable both cached connection and cached tasks
133 * 0 = none, 1 = cached connection, 2 = cached tasks, 3 = both
134 */
135 fcoe_init3.perf_config = 3;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800136
137 kwqe_arr[0] = (struct kwqe *) &fcoe_init1;
138 kwqe_arr[1] = (struct kwqe *) &fcoe_init2;
139 kwqe_arr[2] = (struct kwqe *) &fcoe_init3;
140
141 if (hba->cnic && hba->cnic->submit_kwqes)
142 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
143
144 return rc;
145}
146int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba)
147{
148 struct fcoe_kwqe_destroy fcoe_destroy;
149 struct kwqe *kwqe_arr[2];
150 int num_kwqes = 1;
151 int rc = -1;
152
153 /* fill destroy KWQE */
154 memset(&fcoe_destroy, 0x00, sizeof(struct fcoe_kwqe_destroy));
155 fcoe_destroy.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY;
156 fcoe_destroy.hdr.flags = (FCOE_KWQE_LAYER_CODE <<
157 FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
158 kwqe_arr[0] = (struct kwqe *) &fcoe_destroy;
159
160 if (hba->cnic && hba->cnic->submit_kwqes)
161 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
162 return rc;
163}
164
165/**
166 * bnx2fc_send_session_ofld_req - initiates FCoE Session offload process
167 *
168 * @port: port structure pointer
169 * @tgt: bnx2fc_rport structure pointer
170 */
171int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
172 struct bnx2fc_rport *tgt)
173{
174 struct fc_lport *lport = port->lport;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700175 struct bnx2fc_interface *interface = port->priv;
Robert Lovefd8f8902012-05-22 19:06:16 -0700176 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700177 struct bnx2fc_hba *hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800178 struct kwqe *kwqe_arr[4];
179 struct fcoe_kwqe_conn_offload1 ofld_req1;
180 struct fcoe_kwqe_conn_offload2 ofld_req2;
181 struct fcoe_kwqe_conn_offload3 ofld_req3;
182 struct fcoe_kwqe_conn_offload4 ofld_req4;
183 struct fc_rport_priv *rdata = tgt->rdata;
184 struct fc_rport *rport = tgt->rport;
185 int num_kwqes = 4;
186 u32 port_id;
187 int rc = 0;
188 u16 conn_id;
189
190 /* Initialize offload request 1 structure */
191 memset(&ofld_req1, 0x00, sizeof(struct fcoe_kwqe_conn_offload1));
192
193 ofld_req1.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN1;
194 ofld_req1.hdr.flags =
195 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
196
197
198 conn_id = (u16)tgt->fcoe_conn_id;
199 ofld_req1.fcoe_conn_id = conn_id;
200
201
202 ofld_req1.sq_addr_lo = (u32) tgt->sq_dma;
203 ofld_req1.sq_addr_hi = (u32)((u64) tgt->sq_dma >> 32);
204
205 ofld_req1.rq_pbl_addr_lo = (u32) tgt->rq_pbl_dma;
206 ofld_req1.rq_pbl_addr_hi = (u32)((u64) tgt->rq_pbl_dma >> 32);
207
208 ofld_req1.rq_first_pbe_addr_lo = (u32) tgt->rq_dma;
209 ofld_req1.rq_first_pbe_addr_hi =
210 (u32)((u64) tgt->rq_dma >> 32);
211
212 ofld_req1.rq_prod = 0x8000;
213
214 /* Initialize offload request 2 structure */
215 memset(&ofld_req2, 0x00, sizeof(struct fcoe_kwqe_conn_offload2));
216
217 ofld_req2.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN2;
218 ofld_req2.hdr.flags =
219 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
220
221 ofld_req2.tx_max_fc_pay_len = rdata->maxframe_size;
222
223 ofld_req2.cq_addr_lo = (u32) tgt->cq_dma;
224 ofld_req2.cq_addr_hi = (u32)((u64)tgt->cq_dma >> 32);
225
226 ofld_req2.xferq_addr_lo = (u32) tgt->xferq_dma;
227 ofld_req2.xferq_addr_hi = (u32)((u64)tgt->xferq_dma >> 32);
228
229 ofld_req2.conn_db_addr_lo = (u32)tgt->conn_db_dma;
230 ofld_req2.conn_db_addr_hi = (u32)((u64)tgt->conn_db_dma >> 32);
231
232 /* Initialize offload request 3 structure */
233 memset(&ofld_req3, 0x00, sizeof(struct fcoe_kwqe_conn_offload3));
234
235 ofld_req3.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN3;
236 ofld_req3.hdr.flags =
237 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
238
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700239 ofld_req3.vlan_tag = interface->vlan_id <<
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800240 FCOE_KWQE_CONN_OFFLOAD3_VLAN_ID_SHIFT;
241 ofld_req3.vlan_tag |= 3 << FCOE_KWQE_CONN_OFFLOAD3_PRIORITY_SHIFT;
242
243 port_id = fc_host_port_id(lport->host);
244 if (port_id == 0) {
245 BNX2FC_HBA_DBG(lport, "ofld_req: port_id = 0, link down?\n");
246 return -EINVAL;
247 }
248
249 /*
250 * Store s_id of the initiator for further reference. This will
251 * be used during disable/destroy during linkdown processing as
252 * when the lport is reset, the port_id also is reset to 0
253 */
254 tgt->sid = port_id;
255 ofld_req3.s_id[0] = (port_id & 0x000000FF);
256 ofld_req3.s_id[1] = (port_id & 0x0000FF00) >> 8;
257 ofld_req3.s_id[2] = (port_id & 0x00FF0000) >> 16;
258
259 port_id = rport->port_id;
260 ofld_req3.d_id[0] = (port_id & 0x000000FF);
261 ofld_req3.d_id[1] = (port_id & 0x0000FF00) >> 8;
262 ofld_req3.d_id[2] = (port_id & 0x00FF0000) >> 16;
263
264 ofld_req3.tx_total_conc_seqs = rdata->max_seq;
265
266 ofld_req3.tx_max_conc_seqs_c3 = rdata->max_seq;
267 ofld_req3.rx_max_fc_pay_len = lport->mfs;
268
269 ofld_req3.rx_total_conc_seqs = BNX2FC_MAX_SEQS;
270 ofld_req3.rx_max_conc_seqs_c3 = BNX2FC_MAX_SEQS;
271 ofld_req3.rx_open_seqs_exch_c3 = 1;
272
273 ofld_req3.confq_first_pbe_addr_lo = tgt->confq_dma;
274 ofld_req3.confq_first_pbe_addr_hi = (u32)((u64) tgt->confq_dma >> 32);
275
276 /* set mul_n_port_ids supported flag to 0, until it is supported */
277 ofld_req3.flags = 0;
278 /*
279 ofld_req3.flags |= (((lport->send_sp_features & FC_SP_FT_MNA) ? 1:0) <<
280 FCOE_KWQE_CONN_OFFLOAD3_B_MUL_N_PORT_IDS_SHIFT);
281 */
282 /* Info from PLOGI response */
283 ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_EDTR) ? 1 : 0) <<
284 FCOE_KWQE_CONN_OFFLOAD3_B_E_D_TOV_RES_SHIFT);
285
286 ofld_req3.flags |= (((rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
287 FCOE_KWQE_CONN_OFFLOAD3_B_CONT_INCR_SEQ_CNT_SHIFT);
288
Bhanu Prakash Gollapudib252f4c2011-07-26 14:51:40 -0700289 /*
290 * Info from PRLI response, this info is used for sequence level error
291 * recovery support
292 */
293 if (tgt->dev_type == TYPE_TAPE) {
294 ofld_req3.flags |= 1 <<
295 FCOE_KWQE_CONN_OFFLOAD3_B_CONF_REQ_SHIFT;
296 ofld_req3.flags |= (((rdata->flags & FC_RP_FLAGS_REC_SUPPORTED)
297 ? 1 : 0) <<
298 FCOE_KWQE_CONN_OFFLOAD3_B_REC_VALID_SHIFT);
299 }
300
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800301 /* vlan flag */
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700302 ofld_req3.flags |= (interface->vlan_enabled <<
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800303 FCOE_KWQE_CONN_OFFLOAD3_B_VLAN_FLAG_SHIFT);
304
Masanari Iidad7558142012-08-22 18:40:21 +0900305 /* C2_VALID and ACK flags are not set as they are not supported */
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800306
307
308 /* Initialize offload request 4 structure */
309 memset(&ofld_req4, 0x00, sizeof(struct fcoe_kwqe_conn_offload4));
310 ofld_req4.hdr.op_code = FCOE_KWQE_OPCODE_OFFLOAD_CONN4;
311 ofld_req4.hdr.flags =
312 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
313
314 ofld_req4.e_d_tov_timer_val = lport->e_d_tov / 20;
315
316
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300317 ofld_req4.src_mac_addr_lo[0] = port->data_src_addr[5];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800318 /* local mac */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300319 ofld_req4.src_mac_addr_lo[1] = port->data_src_addr[4];
320 ofld_req4.src_mac_addr_mid[0] = port->data_src_addr[3];
321 ofld_req4.src_mac_addr_mid[1] = port->data_src_addr[2];
322 ofld_req4.src_mac_addr_hi[0] = port->data_src_addr[1];
323 ofld_req4.src_mac_addr_hi[1] = port->data_src_addr[0];
Robert Lovefd8f8902012-05-22 19:06:16 -0700324 ofld_req4.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700325 /* fcf mac */
Robert Lovefd8f8902012-05-22 19:06:16 -0700326 ofld_req4.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
327 ofld_req4.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
328 ofld_req4.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
329 ofld_req4.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
330 ofld_req4.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800331
332 ofld_req4.lcq_addr_lo = (u32) tgt->lcq_dma;
333 ofld_req4.lcq_addr_hi = (u32)((u64) tgt->lcq_dma >> 32);
334
335 ofld_req4.confq_pbl_base_addr_lo = (u32) tgt->confq_pbl_dma;
336 ofld_req4.confq_pbl_base_addr_hi =
337 (u32)((u64) tgt->confq_pbl_dma >> 32);
338
339 kwqe_arr[0] = (struct kwqe *) &ofld_req1;
340 kwqe_arr[1] = (struct kwqe *) &ofld_req2;
341 kwqe_arr[2] = (struct kwqe *) &ofld_req3;
342 kwqe_arr[3] = (struct kwqe *) &ofld_req4;
343
344 if (hba->cnic && hba->cnic->submit_kwqes)
345 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
346
347 return rc;
348}
349
350/**
351 * bnx2fc_send_session_enable_req - initiates FCoE Session enablement
352 *
353 * @port: port structure pointer
354 * @tgt: bnx2fc_rport structure pointer
355 */
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -0800356int bnx2fc_send_session_enable_req(struct fcoe_port *port,
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800357 struct bnx2fc_rport *tgt)
358{
359 struct kwqe *kwqe_arr[2];
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700360 struct bnx2fc_interface *interface = port->priv;
Robert Lovefd8f8902012-05-22 19:06:16 -0700361 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700362 struct bnx2fc_hba *hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800363 struct fcoe_kwqe_conn_enable_disable enbl_req;
364 struct fc_lport *lport = port->lport;
365 struct fc_rport *rport = tgt->rport;
366 int num_kwqes = 1;
367 int rc = 0;
368 u32 port_id;
369
370 memset(&enbl_req, 0x00,
371 sizeof(struct fcoe_kwqe_conn_enable_disable));
372 enbl_req.hdr.op_code = FCOE_KWQE_OPCODE_ENABLE_CONN;
373 enbl_req.hdr.flags =
374 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
375
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300376 enbl_req.src_mac_addr_lo[0] = port->data_src_addr[5];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800377 /* local mac */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300378 enbl_req.src_mac_addr_lo[1] = port->data_src_addr[4];
379 enbl_req.src_mac_addr_mid[0] = port->data_src_addr[3];
380 enbl_req.src_mac_addr_mid[1] = port->data_src_addr[2];
381 enbl_req.src_mac_addr_hi[0] = port->data_src_addr[1];
382 enbl_req.src_mac_addr_hi[1] = port->data_src_addr[0];
383 memcpy(tgt->src_addr, port->data_src_addr, ETH_ALEN);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800384
Robert Lovefd8f8902012-05-22 19:06:16 -0700385 enbl_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
386 enbl_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
387 enbl_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
388 enbl_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
389 enbl_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
390 enbl_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800391
392 port_id = fc_host_port_id(lport->host);
393 if (port_id != tgt->sid) {
394 printk(KERN_ERR PFX "WARN: enable_req port_id = 0x%x,"
395 "sid = 0x%x\n", port_id, tgt->sid);
396 port_id = tgt->sid;
397 }
398 enbl_req.s_id[0] = (port_id & 0x000000FF);
399 enbl_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
400 enbl_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
401
402 port_id = rport->port_id;
403 enbl_req.d_id[0] = (port_id & 0x000000FF);
404 enbl_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
405 enbl_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700406 enbl_req.vlan_tag = interface->vlan_id <<
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800407 FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
408 enbl_req.vlan_tag |= 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700409 enbl_req.vlan_flag = interface->vlan_enabled;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800410 enbl_req.context_id = tgt->context_id;
411 enbl_req.conn_id = tgt->fcoe_conn_id;
412
413 kwqe_arr[0] = (struct kwqe *) &enbl_req;
414
415 if (hba->cnic && hba->cnic->submit_kwqes)
416 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
417 return rc;
418}
419
420/**
421 * bnx2fc_send_session_disable_req - initiates FCoE Session disable
422 *
423 * @port: port structure pointer
424 * @tgt: bnx2fc_rport structure pointer
425 */
426int bnx2fc_send_session_disable_req(struct fcoe_port *port,
427 struct bnx2fc_rport *tgt)
428{
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700429 struct bnx2fc_interface *interface = port->priv;
Robert Lovefd8f8902012-05-22 19:06:16 -0700430 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700431 struct bnx2fc_hba *hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800432 struct fcoe_kwqe_conn_enable_disable disable_req;
433 struct kwqe *kwqe_arr[2];
434 struct fc_rport *rport = tgt->rport;
435 int num_kwqes = 1;
436 int rc = 0;
437 u32 port_id;
438
439 memset(&disable_req, 0x00,
440 sizeof(struct fcoe_kwqe_conn_enable_disable));
441 disable_req.hdr.op_code = FCOE_KWQE_OPCODE_DISABLE_CONN;
442 disable_req.hdr.flags =
443 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
444
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300445 disable_req.src_mac_addr_lo[0] = tgt->src_addr[5];
446 disable_req.src_mac_addr_lo[1] = tgt->src_addr[4];
447 disable_req.src_mac_addr_mid[0] = tgt->src_addr[3];
448 disable_req.src_mac_addr_mid[1] = tgt->src_addr[2];
449 disable_req.src_mac_addr_hi[0] = tgt->src_addr[1];
450 disable_req.src_mac_addr_hi[1] = tgt->src_addr[0];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800451
Robert Lovefd8f8902012-05-22 19:06:16 -0700452 disable_req.dst_mac_addr_lo[0] = ctlr->dest_addr[5];
453 disable_req.dst_mac_addr_lo[1] = ctlr->dest_addr[4];
454 disable_req.dst_mac_addr_mid[0] = ctlr->dest_addr[3];
455 disable_req.dst_mac_addr_mid[1] = ctlr->dest_addr[2];
456 disable_req.dst_mac_addr_hi[0] = ctlr->dest_addr[1];
457 disable_req.dst_mac_addr_hi[1] = ctlr->dest_addr[0];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800458
459 port_id = tgt->sid;
460 disable_req.s_id[0] = (port_id & 0x000000FF);
461 disable_req.s_id[1] = (port_id & 0x0000FF00) >> 8;
462 disable_req.s_id[2] = (port_id & 0x00FF0000) >> 16;
463
464
465 port_id = rport->port_id;
466 disable_req.d_id[0] = (port_id & 0x000000FF);
467 disable_req.d_id[1] = (port_id & 0x0000FF00) >> 8;
468 disable_req.d_id[2] = (port_id & 0x00FF0000) >> 16;
469 disable_req.context_id = tgt->context_id;
470 disable_req.conn_id = tgt->fcoe_conn_id;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700471 disable_req.vlan_tag = interface->vlan_id <<
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800472 FCOE_KWQE_CONN_ENABLE_DISABLE_VLAN_ID_SHIFT;
473 disable_req.vlan_tag |=
474 3 << FCOE_KWQE_CONN_ENABLE_DISABLE_PRIORITY_SHIFT;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700475 disable_req.vlan_flag = interface->vlan_enabled;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800476
477 kwqe_arr[0] = (struct kwqe *) &disable_req;
478
479 if (hba->cnic && hba->cnic->submit_kwqes)
480 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
481
482 return rc;
483}
484
485/**
486 * bnx2fc_send_session_destroy_req - initiates FCoE Session destroy
487 *
Lee Jones4db2ac3e2020-07-13 08:46:29 +0100488 * @hba: adapter structure pointer
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800489 * @tgt: bnx2fc_rport structure pointer
490 */
491int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
492 struct bnx2fc_rport *tgt)
493{
494 struct fcoe_kwqe_conn_destroy destroy_req;
495 struct kwqe *kwqe_arr[2];
496 int num_kwqes = 1;
497 int rc = 0;
498
499 memset(&destroy_req, 0x00, sizeof(struct fcoe_kwqe_conn_destroy));
500 destroy_req.hdr.op_code = FCOE_KWQE_OPCODE_DESTROY_CONN;
501 destroy_req.hdr.flags =
502 (FCOE_KWQE_LAYER_CODE << FCOE_KWQE_HEADER_LAYER_CODE_SHIFT);
503
504 destroy_req.context_id = tgt->context_id;
505 destroy_req.conn_id = tgt->fcoe_conn_id;
506
507 kwqe_arr[0] = (struct kwqe *) &destroy_req;
508
509 if (hba->cnic && hba->cnic->submit_kwqes)
510 rc = hba->cnic->submit_kwqes(hba->cnic, kwqe_arr, num_kwqes);
511
512 return rc;
513}
514
Bhanu Prakash Gollapudid36b3272011-05-27 11:47:27 -0700515static bool is_valid_lport(struct bnx2fc_hba *hba, struct fc_lport *lport)
516{
517 struct bnx2fc_lport *blport;
518
519 spin_lock_bh(&hba->hba_lock);
520 list_for_each_entry(blport, &hba->vports, list) {
521 if (blport->lport == lport) {
522 spin_unlock_bh(&hba->hba_lock);
523 return true;
524 }
525 }
526 spin_unlock_bh(&hba->hba_lock);
527 return false;
528
529}
530
531
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800532static void bnx2fc_unsol_els_work(struct work_struct *work)
533{
534 struct bnx2fc_unsol_els *unsol_els;
535 struct fc_lport *lport;
Bhanu Prakash Gollapudid36b3272011-05-27 11:47:27 -0700536 struct bnx2fc_hba *hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800537 struct fc_frame *fp;
538
539 unsol_els = container_of(work, struct bnx2fc_unsol_els, unsol_els_work);
540 lport = unsol_els->lport;
541 fp = unsol_els->fp;
Bhanu Prakash Gollapudid36b3272011-05-27 11:47:27 -0700542 hba = unsol_els->hba;
543 if (is_valid_lport(hba, lport))
544 fc_exch_recv(lport, fp);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800545 kfree(unsol_els);
546}
547
548void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
549 unsigned char *buf,
550 u32 frame_len, u16 l2_oxid)
551{
552 struct fcoe_port *port = tgt->port;
553 struct fc_lport *lport = port->lport;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700554 struct bnx2fc_interface *interface = port->priv;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800555 struct bnx2fc_unsol_els *unsol_els;
556 struct fc_frame_header *fh;
557 struct fc_frame *fp;
558 struct sk_buff *skb;
559 u32 payload_len;
560 u32 crc;
561 u8 op;
562
563
564 unsol_els = kzalloc(sizeof(*unsol_els), GFP_ATOMIC);
565 if (!unsol_els) {
566 BNX2FC_TGT_DBG(tgt, "Unable to allocate unsol_work\n");
567 return;
568 }
569
570 BNX2FC_TGT_DBG(tgt, "l2_frame_compl l2_oxid = 0x%x, frame_len = %d\n",
571 l2_oxid, frame_len);
572
573 payload_len = frame_len - sizeof(struct fc_frame_header);
574
575 fp = fc_frame_alloc(lport, payload_len);
576 if (!fp) {
577 printk(KERN_ERR PFX "fc_frame_alloc failure\n");
Julia Lawall5c2dce22011-04-01 16:23:46 +0200578 kfree(unsol_els);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800579 return;
580 }
581
582 fh = (struct fc_frame_header *) fc_frame_header_get(fp);
583 /* Copy FC Frame header and payload into the frame */
584 memcpy(fh, buf, frame_len);
585
586 if (l2_oxid != FC_XID_UNKNOWN)
587 fh->fh_ox_id = htons(l2_oxid);
588
589 skb = fp_skb(fp);
590
591 if ((fh->fh_r_ctl == FC_RCTL_ELS_REQ) ||
592 (fh->fh_r_ctl == FC_RCTL_ELS_REP)) {
593
594 if (fh->fh_type == FC_TYPE_ELS) {
595 op = fc_frame_payload_op(fp);
596 if ((op == ELS_TEST) || (op == ELS_ESTC) ||
597 (op == ELS_FAN) || (op == ELS_CSU)) {
598 /*
599 * No need to reply for these
600 * ELS requests
601 */
602 printk(KERN_ERR PFX "dropping ELS 0x%x\n", op);
603 kfree_skb(skb);
Julia Lawall5c2dce22011-04-01 16:23:46 +0200604 kfree(unsol_els);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800605 return;
606 }
607 }
608 crc = fcoe_fc_crc(fp);
609 fc_frame_init(fp);
610 fr_dev(fp) = lport;
611 fr_sof(fp) = FC_SOF_I3;
612 fr_eof(fp) = FC_EOF_T;
613 fr_crc(fp) = cpu_to_le32(~crc);
614 unsol_els->lport = lport;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700615 unsol_els->hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800616 unsol_els->fp = fp;
617 INIT_WORK(&unsol_els->unsol_els_work, bnx2fc_unsol_els_work);
618 queue_work(bnx2fc_wq, &unsol_els->unsol_els_work);
619 } else {
620 BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl);
621 kfree_skb(skb);
Julia Lawall5c2dce22011-04-01 16:23:46 +0200622 kfree(unsol_els);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800623 }
624}
625
626static void bnx2fc_process_unsol_compl(struct bnx2fc_rport *tgt, u16 wqe)
627{
628 u8 num_rq;
629 struct fcoe_err_report_entry *err_entry;
630 unsigned char *rq_data;
631 unsigned char *buf = NULL, *buf1;
632 int i;
633 u16 xid;
634 u32 frame_len, len;
635 struct bnx2fc_cmd *io_req = NULL;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700636 struct bnx2fc_interface *interface = tgt->port->priv;
637 struct bnx2fc_hba *hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800638 int rc = 0;
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700639 u64 err_warn_bit_map;
640 u8 err_warn = 0xff;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800641
642
643 BNX2FC_TGT_DBG(tgt, "Entered UNSOL COMPLETION wqe = 0x%x\n", wqe);
644 switch (wqe & FCOE_UNSOLICITED_CQE_SUBTYPE) {
645 case FCOE_UNSOLICITED_FRAME_CQE_TYPE:
646 frame_len = (wqe & FCOE_UNSOLICITED_CQE_PKT_LEN) >>
647 FCOE_UNSOLICITED_CQE_PKT_LEN_SHIFT;
648
649 num_rq = (frame_len + BNX2FC_RQ_BUF_SZ - 1) / BNX2FC_RQ_BUF_SZ;
650
Nithin Sujir68695972011-03-17 17:13:31 -0700651 spin_lock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800652 rq_data = (unsigned char *)bnx2fc_get_next_rqe(tgt, num_rq);
Nithin Sujir68695972011-03-17 17:13:31 -0700653 spin_unlock_bh(&tgt->tgt_lock);
654
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800655 if (rq_data) {
656 buf = rq_data;
657 } else {
658 buf1 = buf = kmalloc((num_rq * BNX2FC_RQ_BUF_SZ),
659 GFP_ATOMIC);
660
661 if (!buf1) {
662 BNX2FC_TGT_DBG(tgt, "Memory alloc failure\n");
663 break;
664 }
665
666 for (i = 0; i < num_rq; i++) {
Nithin Sujir68695972011-03-17 17:13:31 -0700667 spin_lock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800668 rq_data = (unsigned char *)
669 bnx2fc_get_next_rqe(tgt, 1);
Nithin Sujir68695972011-03-17 17:13:31 -0700670 spin_unlock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800671 len = BNX2FC_RQ_BUF_SZ;
672 memcpy(buf1, rq_data, len);
673 buf1 += len;
674 }
675 }
676 bnx2fc_process_l2_frame_compl(tgt, buf, frame_len,
677 FC_XID_UNKNOWN);
678
679 if (buf != rq_data)
680 kfree(buf);
Nithin Sujir68695972011-03-17 17:13:31 -0700681 spin_lock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800682 bnx2fc_return_rqe(tgt, num_rq);
Nithin Sujir68695972011-03-17 17:13:31 -0700683 spin_unlock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800684 break;
685
686 case FCOE_ERROR_DETECTION_CQE_TYPE:
687 /*
Nithin Sujir68695972011-03-17 17:13:31 -0700688 * In case of error reporting CQE a single RQ entry
689 * is consumed.
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800690 */
691 spin_lock_bh(&tgt->tgt_lock);
692 num_rq = 1;
693 err_entry = (struct fcoe_err_report_entry *)
694 bnx2fc_get_next_rqe(tgt, 1);
695 xid = err_entry->fc_hdr.ox_id;
696 BNX2FC_TGT_DBG(tgt, "Unsol Error Frame OX_ID = 0x%x\n", xid);
697 BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x\n",
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300698 err_entry->data.err_warn_bitmap_hi,
699 err_entry->data.err_warn_bitmap_lo);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800700 BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x\n",
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300701 err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800702
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +0000703 if (xid > hba->max_xid) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800704 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n",
705 xid);
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700706 goto ret_err_rqe;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800707 }
708
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800709
710 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700711 if (!io_req)
712 goto ret_err_rqe;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800713
714 if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
715 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700716 goto ret_err_rqe;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800717 }
718
719 if (test_and_clear_bit(BNX2FC_FLAG_IO_CLEANUP,
720 &io_req->req_flags)) {
721 BNX2FC_IO_DBG(io_req, "unsol_err: cleanup in "
722 "progress.. ignore unsol err\n");
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700723 goto ret_err_rqe;
724 }
725
726 err_warn_bit_map = (u64)
727 ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
728 (u64)err_entry->data.err_warn_bitmap_lo;
729 for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
730 if (err_warn_bit_map & (u64)((u64)1 << i)) {
731 err_warn = i;
732 break;
733 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800734 }
735
736 /*
737 * If ABTS is already in progress, and FW error is
738 * received after that, do not cancel the timeout_work
739 * and let the error recovery continue by explicitly
740 * logging out the target, when the ABTS eventually
741 * times out.
742 */
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700743 if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags)) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800744 printk(KERN_ERR PFX "err_warn: io_req (0x%x) already "
745 "in ABTS processing\n", xid);
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700746 goto ret_err_rqe;
747 }
748 BNX2FC_TGT_DBG(tgt, "err = 0x%x\n", err_warn);
749 if (tgt->dev_type != TYPE_TAPE)
750 goto skip_rec;
751 switch (err_warn) {
752 case FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION:
753 case FCOE_ERROR_CODE_DATA_OOO_RO:
754 case FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT:
755 case FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET:
756 case FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ:
757 case FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET:
758 BNX2FC_TGT_DBG(tgt, "REC TOV popped for xid - 0x%x\n",
759 xid);
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700760 memcpy(&io_req->err_entry, err_entry,
761 sizeof(struct fcoe_err_report_entry));
762 if (!test_bit(BNX2FC_FLAG_SRR_SENT,
763 &io_req->req_flags)) {
764 spin_unlock_bh(&tgt->tgt_lock);
765 rc = bnx2fc_send_rec(io_req);
766 spin_lock_bh(&tgt->tgt_lock);
767
768 if (rc)
769 goto skip_rec;
770 } else
771 printk(KERN_ERR PFX "SRR in progress\n");
772 goto ret_err_rqe;
773 break;
774 default:
775 break;
776 }
777
778skip_rec:
779 set_bit(BNX2FC_FLAG_ISSUE_ABTS, &io_req->req_flags);
780 /*
781 * Cancel the timeout_work, as we received IO
782 * completion with FW error.
783 */
784 if (cancel_delayed_work(&io_req->timeout_work))
785 kref_put(&io_req->refcount, bnx2fc_cmd_release);
786
787 rc = bnx2fc_initiate_abts(io_req);
788 if (rc != SUCCESS) {
789 printk(KERN_ERR PFX "err_warn: initiate_abts "
790 "failed xid = 0x%x. issue cleanup\n",
791 io_req->xid);
792 bnx2fc_initiate_cleanup(io_req);
793 }
794ret_err_rqe:
795 bnx2fc_return_rqe(tgt, 1);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800796 spin_unlock_bh(&tgt->tgt_lock);
797 break;
798
799 case FCOE_WARNING_DETECTION_CQE_TYPE:
800 /*
801 *In case of warning reporting CQE a single RQ entry
802 * is consumes.
803 */
Nithin Sujir68695972011-03-17 17:13:31 -0700804 spin_lock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800805 num_rq = 1;
806 err_entry = (struct fcoe_err_report_entry *)
807 bnx2fc_get_next_rqe(tgt, 1);
808 xid = cpu_to_be16(err_entry->fc_hdr.ox_id);
809 BNX2FC_TGT_DBG(tgt, "Unsol Warning Frame OX_ID = 0x%x\n", xid);
810 BNX2FC_TGT_DBG(tgt, "err_warn_bitmap = %08x:%08x",
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300811 err_entry->data.err_warn_bitmap_hi,
812 err_entry->data.err_warn_bitmap_lo);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800813 BNX2FC_TGT_DBG(tgt, "buf_offsets - tx = 0x%x, rx = 0x%x",
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300814 err_entry->data.tx_buf_off, err_entry->data.rx_buf_off);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800815
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +0000816 if (xid > hba->max_xid) {
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700817 BNX2FC_TGT_DBG(tgt, "xid(0x%x) out of FW range\n", xid);
818 goto ret_warn_rqe;
819 }
820
821 err_warn_bit_map = (u64)
822 ((u64)err_entry->data.err_warn_bitmap_hi << 32) |
823 (u64)err_entry->data.err_warn_bitmap_lo;
824 for (i = 0; i < BNX2FC_NUM_ERR_BITS; i++) {
Colin Ian Kingd0c0d902019-05-04 17:48:29 +0100825 if (err_warn_bit_map & ((u64)1 << i)) {
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700826 err_warn = i;
827 break;
828 }
829 }
830 BNX2FC_TGT_DBG(tgt, "warn = 0x%x\n", err_warn);
831
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700832 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
833 if (!io_req)
834 goto ret_warn_rqe;
835
836 if (io_req->cmd_type != BNX2FC_SCSI_CMD) {
837 printk(KERN_ERR PFX "err_warn: Not a SCSI cmd\n");
838 goto ret_warn_rqe;
839 }
840
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700841 memcpy(&io_req->err_entry, err_entry,
842 sizeof(struct fcoe_err_report_entry));
843
844 if (err_warn == FCOE_ERROR_CODE_REC_TOV_TIMER_EXPIRATION)
845 /* REC_TOV is not a warning code */
846 BUG_ON(1);
847 else
848 BNX2FC_TGT_DBG(tgt, "Unsolicited warning\n");
849ret_warn_rqe:
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800850 bnx2fc_return_rqe(tgt, 1);
Nithin Sujir68695972011-03-17 17:13:31 -0700851 spin_unlock_bh(&tgt->tgt_lock);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800852 break;
853
854 default:
855 printk(KERN_ERR PFX "Unsol Compl: Invalid CQE Subtype\n");
856 break;
857 }
858}
859
Javed Hasan77331112020-03-26 22:48:47 -0700860void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe,
861 unsigned char *rq_data, u8 num_rq,
862 struct fcoe_task_ctx_entry *task)
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800863{
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800864 struct fcoe_port *port = tgt->port;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700865 struct bnx2fc_interface *interface = port->priv;
866 struct bnx2fc_hba *hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800867 struct bnx2fc_cmd *io_req;
Javed Hasan77331112020-03-26 22:48:47 -0700868
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800869 u16 xid;
870 u8 cmd_type;
871 u8 rx_state = 0;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800872
873 spin_lock_bh(&tgt->tgt_lock);
Javed Hasan77331112020-03-26 22:48:47 -0700874
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800875 xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800876 io_req = (struct bnx2fc_cmd *)hba->cmd_mgr->cmds[xid];
877
878 if (io_req == NULL) {
879 printk(KERN_ERR PFX "ERROR? cq_compl - io_req is NULL\n");
880 spin_unlock_bh(&tgt->tgt_lock);
881 return;
882 }
883
884 /* Timestamp IO completion time */
885 cmd_type = io_req->cmd_type;
886
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300887 rx_state = ((task->rxwr_txrd.var_ctx.rx_flags &
888 FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE) >>
889 FCOE_TCE_RX_WR_TX_RD_VAR_RX_STATE_SHIFT);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800890
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300891 /* Process other IO completion types */
892 switch (cmd_type) {
893 case BNX2FC_SCSI_CMD:
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800894 if (rx_state == FCOE_TASK_RX_STATE_COMPLETED) {
Javed Hasan77331112020-03-26 22:48:47 -0700895 bnx2fc_process_scsi_cmd_compl(io_req, task, num_rq,
896 rq_data);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800897 spin_unlock_bh(&tgt->tgt_lock);
898 return;
899 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800900
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800901 if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
902 bnx2fc_process_abts_compl(io_req, task, num_rq);
903 else if (rx_state ==
904 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
905 bnx2fc_process_cleanup_compl(io_req, task, num_rq);
906 else
907 printk(KERN_ERR PFX "Invalid rx state - %d\n",
908 rx_state);
909 break;
910
911 case BNX2FC_TASK_MGMT_CMD:
912 BNX2FC_IO_DBG(io_req, "Processing TM complete\n");
Javed Hasan77331112020-03-26 22:48:47 -0700913 bnx2fc_process_tm_compl(io_req, task, num_rq, rq_data);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800914 break;
915
916 case BNX2FC_ABTS:
917 /*
918 * ABTS request received by firmware. ABTS response
919 * will be delivered to the task belonging to the IO
920 * that was aborted
921 */
922 BNX2FC_IO_DBG(io_req, "cq_compl- ABTS sent out by fw\n");
923 kref_put(&io_req->refcount, bnx2fc_cmd_release);
924 break;
925
926 case BNX2FC_ELS:
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300927 if (rx_state == FCOE_TASK_RX_STATE_COMPLETED)
928 bnx2fc_process_els_compl(io_req, task, num_rq);
929 else if (rx_state == FCOE_TASK_RX_STATE_ABTS_COMPLETED)
930 bnx2fc_process_abts_compl(io_req, task, num_rq);
931 else if (rx_state ==
932 FCOE_TASK_RX_STATE_EXCHANGE_CLEANUP_COMPLETED)
933 bnx2fc_process_cleanup_compl(io_req, task, num_rq);
934 else
935 printk(KERN_ERR PFX "Invalid rx state = %d\n",
936 rx_state);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800937 break;
938
939 case BNX2FC_CLEANUP:
940 BNX2FC_IO_DBG(io_req, "cq_compl- cleanup resp rcvd\n");
941 kref_put(&io_req->refcount, bnx2fc_cmd_release);
942 break;
943
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -0700944 case BNX2FC_SEQ_CLEANUP:
945 BNX2FC_IO_DBG(io_req, "cq_compl(0x%x) - seq cleanup resp\n",
946 io_req->xid);
947 bnx2fc_process_seq_cleanup_compl(io_req, task, rx_state);
948 kref_put(&io_req->refcount, bnx2fc_cmd_release);
949 break;
950
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800951 default:
952 printk(KERN_ERR PFX "Invalid cmd_type %d\n", cmd_type);
953 break;
954 }
955 spin_unlock_bh(&tgt->tgt_lock);
956}
957
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300958void bnx2fc_arm_cq(struct bnx2fc_rport *tgt)
959{
960 struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
961 u32 msg;
962
963 wmb();
964 rx_db->doorbell_cq_cons = tgt->cq_cons_idx | (tgt->cq_curr_toggle_bit <<
965 FCOE_CQE_TOGGLE_BIT_SHIFT);
966 msg = *((u32 *)rx_db);
967 writel(cpu_to_le32(msg), tgt->ctx_base);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300968
969}
970
Javed Hasan77331112020-03-26 22:48:47 -0700971static struct bnx2fc_work *bnx2fc_alloc_work(struct bnx2fc_rport *tgt, u16 wqe,
972 unsigned char *rq_data, u8 num_rq,
973 struct fcoe_task_ctx_entry *task)
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800974{
975 struct bnx2fc_work *work;
976 work = kzalloc(sizeof(struct bnx2fc_work), GFP_ATOMIC);
977 if (!work)
978 return NULL;
979
980 INIT_LIST_HEAD(&work->list);
981 work->tgt = tgt;
982 work->wqe = wqe;
Javed Hasan77331112020-03-26 22:48:47 -0700983 work->num_rq = num_rq;
984 work->task = task;
985 if (rq_data)
986 memcpy(work->rq_data, rq_data, BNX2FC_RQ_BUF_SZ);
987
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800988 return work;
989}
990
Thomas Gleixner8addebc2017-07-24 12:52:56 +0200991/* Pending work request completion */
Javed Hasan77331112020-03-26 22:48:47 -0700992static bool bnx2fc_pending_work(struct bnx2fc_rport *tgt, unsigned int wqe)
Thomas Gleixner8addebc2017-07-24 12:52:56 +0200993{
994 unsigned int cpu = wqe % num_possible_cpus();
995 struct bnx2fc_percpu_s *fps;
996 struct bnx2fc_work *work;
Javed Hasan77331112020-03-26 22:48:47 -0700997 struct fcoe_task_ctx_entry *task;
998 struct fcoe_task_ctx_entry *task_page;
999 struct fcoe_port *port = tgt->port;
1000 struct bnx2fc_interface *interface = port->priv;
1001 struct bnx2fc_hba *hba = interface->hba;
1002 unsigned char *rq_data = NULL;
1003 unsigned char rq_data_buff[BNX2FC_RQ_BUF_SZ];
1004 int task_idx, index;
Javed Hasan77331112020-03-26 22:48:47 -07001005 u16 xid;
1006 u8 num_rq;
1007 int i;
1008
1009 xid = wqe & FCOE_PEND_WQ_CQE_TASK_ID;
1010 if (xid >= hba->max_tasks) {
1011 pr_err(PFX "ERROR:xid out of range\n");
kbuild test robot60f537d2020-03-28 19:07:28 +08001012 return false;
Javed Hasan77331112020-03-26 22:48:47 -07001013 }
1014
1015 task_idx = xid / BNX2FC_TASKS_PER_PAGE;
1016 index = xid % BNX2FC_TASKS_PER_PAGE;
1017 task_page = (struct fcoe_task_ctx_entry *)hba->task_ctx[task_idx];
1018 task = &task_page[index];
1019
1020 num_rq = ((task->rxwr_txrd.var_ctx.rx_flags &
1021 FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE) >>
1022 FCOE_TCE_RX_WR_TX_RD_VAR_NUM_RQ_WQE_SHIFT);
1023
1024 memset(rq_data_buff, 0, BNX2FC_RQ_BUF_SZ);
1025
1026 if (!num_rq)
1027 goto num_rq_zero;
1028
1029 rq_data = bnx2fc_get_next_rqe(tgt, 1);
1030
1031 if (num_rq > 1) {
1032 /* We do not need extra sense data */
1033 for (i = 1; i < num_rq; i++)
Javed Hasan37d090672020-06-22 02:38:14 -07001034 bnx2fc_get_next_rqe(tgt, 1);
Javed Hasan77331112020-03-26 22:48:47 -07001035 }
1036
1037 if (rq_data)
1038 memcpy(rq_data_buff, rq_data, BNX2FC_RQ_BUF_SZ);
1039
1040 /* return RQ entries */
1041 for (i = 0; i < num_rq; i++)
1042 bnx2fc_return_rqe(tgt, 1);
1043
1044num_rq_zero:
Thomas Gleixner8addebc2017-07-24 12:52:56 +02001045
1046 fps = &per_cpu(bnx2fc_percpu, cpu);
1047 spin_lock_bh(&fps->fp_work_lock);
1048 if (fps->iothread) {
Javed Hasan77331112020-03-26 22:48:47 -07001049 work = bnx2fc_alloc_work(tgt, wqe, rq_data_buff,
1050 num_rq, task);
Thomas Gleixner8addebc2017-07-24 12:52:56 +02001051 if (work) {
1052 list_add_tail(&work->list, &fps->work_list);
1053 wake_up_process(fps->iothread);
1054 spin_unlock_bh(&fps->fp_work_lock);
kbuild test robot60f537d2020-03-28 19:07:28 +08001055 return true;
Thomas Gleixner8addebc2017-07-24 12:52:56 +02001056 }
1057 }
1058 spin_unlock_bh(&fps->fp_work_lock);
Javed Hasan77331112020-03-26 22:48:47 -07001059 bnx2fc_process_cq_compl(tgt, wqe,
1060 rq_data_buff, num_rq, task);
1061
kbuild test robot60f537d2020-03-28 19:07:28 +08001062 return true;
Thomas Gleixner8addebc2017-07-24 12:52:56 +02001063}
1064
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001065int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt)
1066{
1067 struct fcoe_cqe *cq;
1068 u32 cq_cons;
1069 struct fcoe_cqe *cqe;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001070 u32 num_free_sqes = 0;
Bhanu Prakash Gollapudib338c782011-08-04 17:38:46 -07001071 u32 num_cqes = 0;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001072 u16 wqe;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001073
1074 /*
1075 * cq_lock is a low contention lock used to protect
1076 * the CQ data structure from being freed up during
1077 * the upload operation
1078 */
1079 spin_lock_bh(&tgt->cq_lock);
1080
1081 if (!tgt->cq) {
1082 printk(KERN_ERR PFX "process_new_cqes: cq is NULL\n");
1083 spin_unlock_bh(&tgt->cq_lock);
1084 return 0;
1085 }
1086 cq = tgt->cq;
1087 cq_cons = tgt->cq_cons_idx;
1088 cqe = &cq[cq_cons];
1089
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001090 while (((wqe = cqe->wqe) & FCOE_CQE_TOGGLE_BIT) ==
1091 (tgt->cq_curr_toggle_bit <<
1092 FCOE_CQE_TOGGLE_BIT_SHIFT)) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001093
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001094 /* new entry on the cq */
1095 if (wqe & FCOE_CQE_CQE_TYPE) {
1096 /* Unsolicited event notification */
1097 bnx2fc_process_unsol_compl(tgt, wqe);
1098 } else {
Javed Hasan77331112020-03-26 22:48:47 -07001099 if (bnx2fc_pending_work(tgt, wqe))
1100 num_free_sqes++;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001101 }
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001102 cqe++;
1103 tgt->cq_cons_idx++;
Bhanu Prakash Gollapudib338c782011-08-04 17:38:46 -07001104 num_cqes++;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001105
1106 if (tgt->cq_cons_idx == BNX2FC_CQ_WQES_MAX) {
1107 tgt->cq_cons_idx = 0;
1108 cqe = cq;
1109 tgt->cq_curr_toggle_bit =
1110 1 - tgt->cq_curr_toggle_bit;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001111 }
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001112 }
Bhanu Prakash Gollapudib338c782011-08-04 17:38:46 -07001113 if (num_cqes) {
1114 /* Arm CQ only if doorbell is mapped */
1115 if (tgt->ctx_base)
1116 bnx2fc_arm_cq(tgt);
Bhanu Prakash Gollapudifd08bd62011-07-27 11:32:11 -07001117 atomic_add(num_free_sqes, &tgt->free_sqes);
1118 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001119 spin_unlock_bh(&tgt->cq_lock);
1120 return 0;
1121}
1122
1123/**
1124 * bnx2fc_fastpath_notification - process global event queue (KCQ)
1125 *
1126 * @hba: adapter structure pointer
1127 * @new_cqe_kcqe: pointer to newly DMA'd KCQ entry
1128 *
1129 * Fast path event notification handler
1130 */
1131static void bnx2fc_fastpath_notification(struct bnx2fc_hba *hba,
1132 struct fcoe_kcqe *new_cqe_kcqe)
1133{
1134 u32 conn_id = new_cqe_kcqe->fcoe_conn_id;
1135 struct bnx2fc_rport *tgt = hba->tgt_ofld_list[conn_id];
1136
1137 if (!tgt) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001138 printk(KERN_ERR PFX "conn_id 0x%x not valid\n", conn_id);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001139 return;
1140 }
1141
1142 bnx2fc_process_new_cqes(tgt);
1143}
1144
1145/**
1146 * bnx2fc_process_ofld_cmpl - process FCoE session offload completion
1147 *
1148 * @hba: adapter structure pointer
1149 * @ofld_kcqe: connection offload kcqe pointer
1150 *
1151 * handle session offload completion, enable the session if offload is
1152 * successful.
1153 */
1154static void bnx2fc_process_ofld_cmpl(struct bnx2fc_hba *hba,
1155 struct fcoe_kcqe *ofld_kcqe)
1156{
1157 struct bnx2fc_rport *tgt;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001158 struct bnx2fc_interface *interface;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001159 u32 conn_id;
1160 u32 context_id;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001161
1162 conn_id = ofld_kcqe->fcoe_conn_id;
1163 context_id = ofld_kcqe->fcoe_conn_context_id;
1164 tgt = hba->tgt_ofld_list[conn_id];
1165 if (!tgt) {
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001166 printk(KERN_ALERT PFX "ERROR:ofld_cmpl: No pending ofld req\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001167 return;
1168 }
1169 BNX2FC_TGT_DBG(tgt, "Entered ofld compl - context_id = 0x%x\n",
1170 ofld_kcqe->fcoe_conn_context_id);
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001171 interface = tgt->port->priv;
1172 if (hba != interface->hba) {
1173 printk(KERN_ERR PFX "ERROR:ofld_cmpl: HBA mis-match\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001174 goto ofld_cmpl_err;
1175 }
1176 /*
1177 * cnic has allocated a context_id for this session; use this
1178 * while enabling the session.
1179 */
1180 tgt->context_id = context_id;
1181 if (ofld_kcqe->completion_status) {
1182 if (ofld_kcqe->completion_status ==
1183 FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE) {
1184 printk(KERN_ERR PFX "unable to allocate FCoE context "
1185 "resources\n");
1186 set_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE, &tgt->flags);
1187 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001188 } else {
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -08001189 /* FW offload request successfully completed */
1190 set_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001191 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001192ofld_cmpl_err:
1193 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
1194 wake_up_interruptible(&tgt->ofld_wait);
1195}
1196
1197/**
1198 * bnx2fc_process_enable_conn_cmpl - process FCoE session enable completion
1199 *
1200 * @hba: adapter structure pointer
1201 * @ofld_kcqe: connection offload kcqe pointer
1202 *
1203 * handle session enable completion, mark the rport as ready
1204 */
1205
1206static void bnx2fc_process_enable_conn_cmpl(struct bnx2fc_hba *hba,
1207 struct fcoe_kcqe *ofld_kcqe)
1208{
1209 struct bnx2fc_rport *tgt;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001210 struct bnx2fc_interface *interface;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001211 u32 conn_id;
1212 u32 context_id;
1213
1214 context_id = ofld_kcqe->fcoe_conn_context_id;
1215 conn_id = ofld_kcqe->fcoe_conn_id;
1216 tgt = hba->tgt_ofld_list[conn_id];
1217 if (!tgt) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001218 printk(KERN_ERR PFX "ERROR:enbl_cmpl: No pending ofld req\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001219 return;
1220 }
1221
1222 BNX2FC_TGT_DBG(tgt, "Enable compl - context_id = 0x%x\n",
1223 ofld_kcqe->fcoe_conn_context_id);
1224
1225 /*
1226 * context_id should be the same for this target during offload
1227 * and enable
1228 */
1229 if (tgt->context_id != context_id) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001230 printk(KERN_ERR PFX "context id mis-match\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001231 return;
1232 }
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001233 interface = tgt->port->priv;
1234 if (hba != interface->hba) {
1235 printk(KERN_ERR PFX "bnx2fc-enbl_cmpl: HBA mis-match\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001236 goto enbl_cmpl_err;
1237 }
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -08001238 if (!ofld_kcqe->completion_status)
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001239 /* enable successful - rport ready for issuing IOs */
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -08001240 set_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001241
1242enbl_cmpl_err:
1243 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
1244 wake_up_interruptible(&tgt->ofld_wait);
1245}
1246
1247static void bnx2fc_process_conn_disable_cmpl(struct bnx2fc_hba *hba,
1248 struct fcoe_kcqe *disable_kcqe)
1249{
1250
1251 struct bnx2fc_rport *tgt;
1252 u32 conn_id;
1253
1254 conn_id = disable_kcqe->fcoe_conn_id;
1255 tgt = hba->tgt_ofld_list[conn_id];
1256 if (!tgt) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001257 printk(KERN_ERR PFX "ERROR: disable_cmpl: No disable req\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001258 return;
1259 }
1260
1261 BNX2FC_TGT_DBG(tgt, PFX "disable_cmpl: conn_id %d\n", conn_id);
1262
1263 if (disable_kcqe->completion_status) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001264 printk(KERN_ERR PFX "Disable failed with cmpl status %d\n",
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001265 disable_kcqe->completion_status);
Bhanu Prakash Gollapudi5c17ae22012-06-07 02:19:35 -07001266 set_bit(BNX2FC_FLAG_DISABLE_FAILED, &tgt->flags);
1267 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1268 wake_up_interruptible(&tgt->upld_wait);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001269 } else {
1270 /* disable successful */
1271 BNX2FC_TGT_DBG(tgt, "disable successful\n");
1272 clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -08001273 clear_bit(BNX2FC_FLAG_ENABLED, &tgt->flags);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001274 set_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
1275 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1276 wake_up_interruptible(&tgt->upld_wait);
1277 }
1278}
1279
1280static void bnx2fc_process_conn_destroy_cmpl(struct bnx2fc_hba *hba,
1281 struct fcoe_kcqe *destroy_kcqe)
1282{
1283 struct bnx2fc_rport *tgt;
1284 u32 conn_id;
1285
1286 conn_id = destroy_kcqe->fcoe_conn_id;
1287 tgt = hba->tgt_ofld_list[conn_id];
1288 if (!tgt) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001289 printk(KERN_ERR PFX "destroy_cmpl: No destroy req\n");
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001290 return;
1291 }
1292
1293 BNX2FC_TGT_DBG(tgt, "destroy_cmpl: conn_id %d\n", conn_id);
1294
1295 if (destroy_kcqe->completion_status) {
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001296 printk(KERN_ERR PFX "Destroy conn failed, cmpl status %d\n",
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001297 destroy_kcqe->completion_status);
1298 return;
1299 } else {
1300 /* destroy successful */
1301 BNX2FC_TGT_DBG(tgt, "upload successful\n");
1302 clear_bit(BNX2FC_FLAG_DISABLED, &tgt->flags);
1303 set_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags);
1304 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
1305 wake_up_interruptible(&tgt->upld_wait);
1306 }
1307}
1308
1309static void bnx2fc_init_failure(struct bnx2fc_hba *hba, u32 err_code)
1310{
1311 switch (err_code) {
1312 case FCOE_KCQE_COMPLETION_STATUS_INVALID_OPCODE:
1313 printk(KERN_ERR PFX "init_failure due to invalid opcode\n");
1314 break;
1315
1316 case FCOE_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE:
1317 printk(KERN_ERR PFX "init failed due to ctx alloc failure\n");
1318 break;
1319
1320 case FCOE_KCQE_COMPLETION_STATUS_NIC_ERROR:
1321 printk(KERN_ERR PFX "init_failure due to NIC error\n");
1322 break;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001323 case FCOE_KCQE_COMPLETION_STATUS_ERROR:
1324 printk(KERN_ERR PFX "init failure due to compl status err\n");
1325 break;
1326 case FCOE_KCQE_COMPLETION_STATUS_WRONG_HSI_VERSION:
1327 printk(KERN_ERR PFX "init failure due to HSI mismatch\n");
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001328 break;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001329 default:
1330 printk(KERN_ERR PFX "Unknown Error code %d\n", err_code);
1331 }
1332}
1333
1334/**
1335 * bnx2fc_indicae_kcqe - process KCQE
1336 *
Lee Jones4db2ac3e2020-07-13 08:46:29 +01001337 * @context: adapter structure pointer
1338 * @kcq: kcqe pointer
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001339 * @num_cqe: Number of completion queue elements
1340 *
1341 * Generic KCQ event handler
1342 */
1343void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
1344 u32 num_cqe)
1345{
1346 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
1347 int i = 0;
1348 struct fcoe_kcqe *kcqe = NULL;
1349
1350 while (i < num_cqe) {
1351 kcqe = (struct fcoe_kcqe *) kcq[i++];
1352
1353 switch (kcqe->op_code) {
1354 case FCOE_KCQE_OPCODE_CQ_EVENT_NOTIFICATION:
1355 bnx2fc_fastpath_notification(hba, kcqe);
1356 break;
1357
1358 case FCOE_KCQE_OPCODE_OFFLOAD_CONN:
1359 bnx2fc_process_ofld_cmpl(hba, kcqe);
1360 break;
1361
1362 case FCOE_KCQE_OPCODE_ENABLE_CONN:
1363 bnx2fc_process_enable_conn_cmpl(hba, kcqe);
1364 break;
1365
1366 case FCOE_KCQE_OPCODE_INIT_FUNC:
1367 if (kcqe->completion_status !=
1368 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
1369 bnx2fc_init_failure(hba,
1370 kcqe->completion_status);
1371 } else {
1372 set_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1373 bnx2fc_get_link_state(hba);
1374 printk(KERN_INFO PFX "[%.2x]: FCOE_INIT passed\n",
1375 (u8)hba->pcidev->bus->number);
1376 }
1377 break;
1378
1379 case FCOE_KCQE_OPCODE_DESTROY_FUNC:
1380 if (kcqe->completion_status !=
1381 FCOE_KCQE_COMPLETION_STATUS_SUCCESS) {
1382
1383 printk(KERN_ERR PFX "DESTROY failed\n");
1384 } else {
1385 printk(KERN_ERR PFX "DESTROY success\n");
1386 }
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001387 set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001388 wake_up_interruptible(&hba->destroy_wait);
1389 break;
1390
1391 case FCOE_KCQE_OPCODE_DISABLE_CONN:
1392 bnx2fc_process_conn_disable_cmpl(hba, kcqe);
1393 break;
1394
1395 case FCOE_KCQE_OPCODE_DESTROY_CONN:
1396 bnx2fc_process_conn_destroy_cmpl(hba, kcqe);
1397 break;
1398
1399 case FCOE_KCQE_OPCODE_STAT_FUNC:
1400 if (kcqe->completion_status !=
1401 FCOE_KCQE_COMPLETION_STATUS_SUCCESS)
1402 printk(KERN_ERR PFX "STAT failed\n");
1403 complete(&hba->stat_req_done);
1404 break;
1405
1406 case FCOE_KCQE_OPCODE_FCOE_ERROR:
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001407 default:
Bhanu Prakash Gollapudib2a554f2011-06-27 23:30:53 -07001408 printk(KERN_ERR PFX "unknown opcode 0x%x\n",
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001409 kcqe->op_code);
1410 }
1411 }
1412}
1413
1414void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid)
1415{
1416 struct fcoe_sqe *sqe;
1417
1418 sqe = &tgt->sq[tgt->sq_prod_idx];
1419
1420 /* Fill SQ WQE */
1421 sqe->wqe = xid << FCOE_SQE_TASK_ID_SHIFT;
1422 sqe->wqe |= tgt->sq_curr_toggle_bit << FCOE_SQE_TOGGLE_BIT_SHIFT;
1423
1424 /* Advance SQ Prod Idx */
1425 if (++tgt->sq_prod_idx == BNX2FC_SQ_WQES_MAX) {
1426 tgt->sq_prod_idx = 0;
1427 tgt->sq_curr_toggle_bit = 1 - tgt->sq_curr_toggle_bit;
1428 }
1429}
1430
1431void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt)
1432{
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001433 struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001434 u32 msg;
1435
1436 wmb();
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001437 sq_db->prod = tgt->sq_prod_idx |
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001438 (tgt->sq_curr_toggle_bit << 15);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001439 msg = *((u32 *)sq_db);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001440 writel(cpu_to_le32(msg), tgt->ctx_base);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001441
1442}
1443
1444int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt)
1445{
1446 u32 context_id = tgt->context_id;
1447 struct fcoe_port *port = tgt->port;
1448 u32 reg_off;
1449 resource_size_t reg_base;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -07001450 struct bnx2fc_interface *interface = port->priv;
1451 struct bnx2fc_hba *hba = interface->hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001452
1453 reg_base = pci_resource_start(hba->pcidev,
1454 BNX2X_DOORBELL_PCI_BAR);
Michael Chanf78afb32013-09-18 01:50:38 -07001455 reg_off = (1 << BNX2X_DB_SHIFT) * (context_id & 0x1FFFF);
Christoph Hellwig4bdc0d62020-01-06 09:43:50 +01001456 tgt->ctx_base = ioremap(reg_base + reg_off, 4);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001457 if (!tgt->ctx_base)
1458 return -ENOMEM;
1459 return 0;
1460}
1461
1462char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items)
1463{
1464 char *buf = (char *)tgt->rq + (tgt->rq_cons_idx * BNX2FC_RQ_BUF_SZ);
1465
1466 if (tgt->rq_cons_idx + num_items > BNX2FC_RQ_WQES_MAX)
1467 return NULL;
1468
1469 tgt->rq_cons_idx += num_items;
1470
1471 if (tgt->rq_cons_idx >= BNX2FC_RQ_WQES_MAX)
1472 tgt->rq_cons_idx -= BNX2FC_RQ_WQES_MAX;
1473
1474 return buf;
1475}
1476
1477void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items)
1478{
1479 /* return the rq buffer */
1480 u32 next_prod_idx = tgt->rq_prod_idx + num_items;
1481 if ((next_prod_idx & 0x7fff) == BNX2FC_RQ_WQES_MAX) {
1482 /* Wrap around RQ */
1483 next_prod_idx += 0x8000 - BNX2FC_RQ_WQES_MAX;
1484 }
1485 tgt->rq_prod_idx = next_prod_idx;
1486 tgt->conn_db->rq_prod = tgt->rq_prod_idx;
1487}
1488
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -07001489void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnp_req,
1490 struct fcoe_task_ctx_entry *task,
1491 struct bnx2fc_cmd *orig_io_req,
1492 u32 offset)
1493{
1494 struct scsi_cmnd *sc_cmd = orig_io_req->sc_cmd;
1495 struct bnx2fc_rport *tgt = seq_clnp_req->tgt;
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -07001496 struct fcoe_bd_ctx *bd = orig_io_req->bd_tbl->bd_tbl;
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -07001497 struct fcoe_ext_mul_sges_ctx *sgl;
1498 u8 task_type = FCOE_TASK_TYPE_SEQUENCE_CLEANUP;
1499 u8 orig_task_type;
1500 u16 orig_xid = orig_io_req->xid;
1501 u32 context_id = tgt->context_id;
1502 u64 phys_addr = (u64)orig_io_req->bd_tbl->bd_tbl_dma;
1503 u32 orig_offset = offset;
1504 int bd_count;
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -07001505 int i;
1506
1507 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1508
1509 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
1510 orig_task_type = FCOE_TASK_TYPE_WRITE;
1511 else
1512 orig_task_type = FCOE_TASK_TYPE_READ;
1513
1514 /* Tx flags */
1515 task->txwr_rxrd.const_ctx.tx_flags =
1516 FCOE_TASK_TX_STATE_SEQUENCE_CLEANUP <<
1517 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
1518 /* init flags */
1519 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1520 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1521 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1522 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1523 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1524 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1525 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1526 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1527
1528 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
1529
1530 task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_seq_cnt = 0;
1531 task->txwr_rxrd.union_ctx.cleanup.ctx.rolled_tx_data_offset = offset;
1532
1533 bd_count = orig_io_req->bd_tbl->bd_valid;
1534
1535 /* obtain the appropriate bd entry from relative offset */
1536 for (i = 0; i < bd_count; i++) {
1537 if (offset < bd[i].buf_len)
1538 break;
1539 offset -= bd[i].buf_len;
1540 }
1541 phys_addr += (i * sizeof(struct fcoe_bd_ctx));
1542
1543 if (orig_task_type == FCOE_TASK_TYPE_WRITE) {
1544 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1545 (u32)phys_addr;
1546 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1547 (u32)((u64)phys_addr >> 32);
1548 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
1549 bd_count;
1550 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_off =
1551 offset; /* adjusted offset */
1552 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_idx = i;
1553 } else {
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -07001554
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -07001555 /* Multiple SGEs were used for this IO */
1556 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1557 sgl->mul_sgl.cur_sge_addr.lo = (u32)phys_addr;
1558 sgl->mul_sgl.cur_sge_addr.hi = (u32)((u64)phys_addr >> 32);
1559 sgl->mul_sgl.sgl_size = bd_count;
1560 sgl->mul_sgl.cur_sge_off = offset; /*adjusted offset */
1561 sgl->mul_sgl.cur_sge_idx = i;
1562
1563 memset(&task->rxwr_only.rx_seq_ctx, 0,
1564 sizeof(struct fcoe_rx_seq_ctx));
1565 task->rxwr_only.rx_seq_ctx.low_exp_ro = orig_offset;
1566 task->rxwr_only.rx_seq_ctx.high_exp_ro = orig_offset;
1567 }
1568}
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001569void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
1570 struct fcoe_task_ctx_entry *task,
1571 u16 orig_xid)
1572{
1573 u8 task_type = FCOE_TASK_TYPE_EXCHANGE_CLEANUP;
1574 struct bnx2fc_rport *tgt = io_req->tgt;
1575 u32 context_id = tgt->context_id;
1576
1577 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1578
1579 /* Tx Write Rx Read */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001580 /* init flags */
1581 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1582 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
1583 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1584 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
Bhanu Prakash Gollapudif3820b72011-07-27 11:32:08 -07001585 if (tgt->dev_type == TYPE_TAPE)
1586 task->txwr_rxrd.const_ctx.init_flags |=
1587 FCOE_TASK_DEV_TYPE_TAPE <<
1588 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1589 else
1590 task->txwr_rxrd.const_ctx.init_flags |=
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001591 FCOE_TASK_DEV_TYPE_DISK <<
1592 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1593 task->txwr_rxrd.union_ctx.cleanup.ctx.cleaned_task_id = orig_xid;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001594
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001595 /* Tx flags */
1596 task->txwr_rxrd.const_ctx.tx_flags =
1597 FCOE_TASK_TX_STATE_EXCHANGE_CLEANUP <<
1598 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001599
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001600 /* Rx Read Tx Write */
1601 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1602 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1603 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1604 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001605}
1606
1607void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
1608 struct fcoe_task_ctx_entry *task)
1609{
1610 struct bnx2fc_mp_req *mp_req = &(io_req->mp_req);
1611 struct bnx2fc_rport *tgt = io_req->tgt;
1612 struct fc_frame_header *fc_hdr;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001613 struct fcoe_ext_mul_sges_ctx *sgl;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001614 u8 task_type = 0;
1615 u64 *hdr;
1616 u64 temp_hdr[3];
1617 u32 context_id;
1618
1619
1620 /* Obtain task_type */
1621 if ((io_req->cmd_type == BNX2FC_TASK_MGMT_CMD) ||
1622 (io_req->cmd_type == BNX2FC_ELS)) {
1623 task_type = FCOE_TASK_TYPE_MIDPATH;
1624 } else if (io_req->cmd_type == BNX2FC_ABTS) {
1625 task_type = FCOE_TASK_TYPE_ABTS;
1626 }
1627
1628 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1629
1630 /* Setup the task from io_req for easy reference */
1631 io_req->task = task;
1632
1633 BNX2FC_IO_DBG(io_req, "Init MP task for cmd_type = %d task_type = %d\n",
1634 io_req->cmd_type, task_type);
1635
1636 /* Tx only */
1637 if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
1638 (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001639 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001640 (u32)mp_req->mp_req_bd_dma;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001641 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001642 (u32)((u64)mp_req->mp_req_bd_dma >> 32);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001643 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size = 1;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001644 }
1645
1646 /* Tx Write Rx Read */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001647 /* init flags */
1648 task->txwr_rxrd.const_ctx.init_flags = task_type <<
1649 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
Bhanu Prakash Gollapudif3820b72011-07-27 11:32:08 -07001650 if (tgt->dev_type == TYPE_TAPE)
1651 task->txwr_rxrd.const_ctx.init_flags |=
1652 FCOE_TASK_DEV_TYPE_TAPE <<
1653 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1654 else
1655 task->txwr_rxrd.const_ctx.init_flags |=
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001656 FCOE_TASK_DEV_TYPE_DISK <<
1657 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1658 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1659 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001660
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001661 /* tx flags */
1662 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_INIT <<
1663 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001664
1665 /* Rx Write Tx Read */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001666 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
1667
1668 /* rx flags */
1669 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1670 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1671
1672 context_id = tgt->context_id;
1673 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1674 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1675
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001676 fc_hdr = &(mp_req->req_fc_hdr);
1677 if (task_type == FCOE_TASK_TYPE_MIDPATH) {
1678 fc_hdr->fh_ox_id = cpu_to_be16(io_req->xid);
1679 fc_hdr->fh_rx_id = htons(0xffff);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001680 task->rxwr_txrd.var_ctx.rx_id = 0xffff;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001681 } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
1682 fc_hdr->fh_rx_id = cpu_to_be16(io_req->xid);
1683 }
1684
1685 /* Fill FC Header into middle path buffer */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001686 hdr = (u64 *) &task->txwr_rxrd.union_ctx.tx_frame.fc_hdr;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001687 memcpy(temp_hdr, fc_hdr, sizeof(temp_hdr));
1688 hdr[0] = cpu_to_be64(temp_hdr[0]);
1689 hdr[1] = cpu_to_be64(temp_hdr[1]);
1690 hdr[2] = cpu_to_be64(temp_hdr[2]);
1691
1692 /* Rx Only */
1693 if (task_type == FCOE_TASK_TYPE_MIDPATH) {
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001694 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001695
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001696 sgl->mul_sgl.cur_sge_addr.lo = (u32)mp_req->mp_resp_bd_dma;
1697 sgl->mul_sgl.cur_sge_addr.hi =
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001698 (u32)((u64)mp_req->mp_resp_bd_dma >> 32);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001699 sgl->mul_sgl.sgl_size = 1;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001700 }
1701}
1702
1703void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
1704 struct fcoe_task_ctx_entry *task)
1705{
1706 u8 task_type;
1707 struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
1708 struct io_bdt *bd_tbl = io_req->bd_tbl;
1709 struct bnx2fc_rport *tgt = io_req->tgt;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001710 struct fcoe_cached_sge_ctx *cached_sge;
1711 struct fcoe_ext_mul_sges_ctx *sgl;
Bhanu Prakash Gollapudif3820b72011-07-27 11:32:08 -07001712 int dev_type = tgt->dev_type;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001713 u64 *fcp_cmnd;
1714 u64 tmp_fcp_cmnd[4];
1715 u32 context_id;
1716 int cnt, i;
1717 int bd_count;
1718
1719 memset(task, 0, sizeof(struct fcoe_task_ctx_entry));
1720
1721 /* Setup the task from io_req for easy reference */
1722 io_req->task = task;
1723
1724 if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
1725 task_type = FCOE_TASK_TYPE_WRITE;
1726 else
1727 task_type = FCOE_TASK_TYPE_READ;
1728
1729 /* Tx only */
Bhanu Prakash Gollapudi3c751082011-07-27 11:32:12 -07001730 bd_count = bd_tbl->bd_valid;
Bhanu Prakash Gollapudi1101a0d2012-02-20 09:59:09 +00001731 cached_sge = &task->rxwr_only.union_ctx.read_info.sgl_ctx.cached_sge;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001732 if (task_type == FCOE_TASK_TYPE_WRITE) {
Bhanu Prakash Gollapudi3c751082011-07-27 11:32:12 -07001733 if ((dev_type == TYPE_DISK) && (bd_count == 1)) {
1734 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1735
1736 task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.lo =
Bhanu Prakash Gollapudi1101a0d2012-02-20 09:59:09 +00001737 cached_sge->cur_buf_addr.lo =
Bhanu Prakash Gollapudi3c751082011-07-27 11:32:12 -07001738 fcoe_bd_tbl->buf_addr_lo;
1739 task->txwr_only.sgl_ctx.cached_sge.cur_buf_addr.hi =
Bhanu Prakash Gollapudi1101a0d2012-02-20 09:59:09 +00001740 cached_sge->cur_buf_addr.hi =
Bhanu Prakash Gollapudi3c751082011-07-27 11:32:12 -07001741 fcoe_bd_tbl->buf_addr_hi;
1742 task->txwr_only.sgl_ctx.cached_sge.cur_buf_rem =
Bhanu Prakash Gollapudi1101a0d2012-02-20 09:59:09 +00001743 cached_sge->cur_buf_rem =
Bhanu Prakash Gollapudi3c751082011-07-27 11:32:12 -07001744 fcoe_bd_tbl->buf_len;
1745
1746 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1747 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1748 } else {
1749 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.lo =
1750 (u32)bd_tbl->bd_tbl_dma;
1751 task->txwr_only.sgl_ctx.sgl.mul_sgl.cur_sge_addr.hi =
1752 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1753 task->txwr_only.sgl_ctx.sgl.mul_sgl.sgl_size =
1754 bd_tbl->bd_valid;
1755 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001756 }
1757
1758 /*Tx Write Rx Read */
1759 /* Init state to NORMAL */
Bhanu Prakash Gollapudi3c751082011-07-27 11:32:12 -07001760 task->txwr_rxrd.const_ctx.init_flags |= task_type <<
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001761 FCOE_TCE_TX_WR_RX_RD_CONST_TASK_TYPE_SHIFT;
Bhanu Prakash Gollapudic1c16bd2011-08-30 15:54:49 -07001762 if (dev_type == TYPE_TAPE) {
Bhanu Prakash Gollapudif3820b72011-07-27 11:32:08 -07001763 task->txwr_rxrd.const_ctx.init_flags |=
1764 FCOE_TASK_DEV_TYPE_TAPE <<
1765 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
Bhanu Prakash Gollapudic1c16bd2011-08-30 15:54:49 -07001766 io_req->rec_retry = 0;
1767 io_req->rec_retry = 0;
1768 } else
Bhanu Prakash Gollapudif3820b72011-07-27 11:32:08 -07001769 task->txwr_rxrd.const_ctx.init_flags |=
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001770 FCOE_TASK_DEV_TYPE_DISK <<
1771 FCOE_TCE_TX_WR_RX_RD_CONST_DEV_TYPE_SHIFT;
1772 task->txwr_rxrd.const_ctx.init_flags |= FCOE_TASK_CLASS_TYPE_3 <<
1773 FCOE_TCE_TX_WR_RX_RD_CONST_CLASS_TYPE_SHIFT;
1774 /* tx flags */
1775 task->txwr_rxrd.const_ctx.tx_flags = FCOE_TASK_TX_STATE_NORMAL <<
1776 FCOE_TCE_TX_WR_RX_RD_CONST_TX_STATE_SHIFT;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001777
1778 /* Set initial seq counter */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001779 task->txwr_rxrd.union_ctx.tx_seq.ctx.seq_cnt = 1;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001780
1781 /* Fill FCP_CMND IU */
1782 fcp_cmnd = (u64 *)
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001783 task->txwr_rxrd.union_ctx.fcp_cmd.opaque;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001784 bnx2fc_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
1785
1786 /* swap fcp_cmnd */
1787 cnt = sizeof(struct fcp_cmnd) / sizeof(u64);
1788
1789 for (i = 0; i < cnt; i++) {
1790 *fcp_cmnd = cpu_to_be64(tmp_fcp_cmnd[i]);
1791 fcp_cmnd++;
1792 }
1793
1794 /* Rx Write Tx Read */
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001795 task->rxwr_txrd.const_ctx.data_2_trns = io_req->data_xfer_len;
1796
1797 context_id = tgt->context_id;
1798 task->rxwr_txrd.const_ctx.init_flags = context_id <<
1799 FCOE_TCE_RX_WR_TX_RD_CONST_CID_SHIFT;
1800
1801 /* rx flags */
1802 /* Set state to "waiting for the first packet" */
1803 task->rxwr_txrd.var_ctx.rx_flags |= 1 <<
1804 FCOE_TCE_RX_WR_TX_RD_VAR_EXP_FIRST_FRAME_SHIFT;
1805
1806 task->rxwr_txrd.var_ctx.rx_id = 0xffff;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001807
1808 /* Rx Only */
Bhanu Prakash Gollapudi1101a0d2012-02-20 09:59:09 +00001809 if (task_type != FCOE_TASK_TYPE_READ)
1810 return;
1811
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001812 sgl = &task->rxwr_only.union_ctx.read_info.sgl_ctx.sgl;
1813 bd_count = bd_tbl->bd_valid;
Bhanu Prakash Gollapudi1101a0d2012-02-20 09:59:09 +00001814
1815 if (dev_type == TYPE_DISK) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001816 if (bd_count == 1) {
1817
1818 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1819
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001820 cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
1821 cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
1822 cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
1823 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1824 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
1825 } else if (bd_count == 2) {
1826 struct fcoe_bd_ctx *fcoe_bd_tbl = bd_tbl->bd_tbl;
1827
1828 cached_sge->cur_buf_addr.lo = fcoe_bd_tbl->buf_addr_lo;
1829 cached_sge->cur_buf_addr.hi = fcoe_bd_tbl->buf_addr_hi;
1830 cached_sge->cur_buf_rem = fcoe_bd_tbl->buf_len;
1831
1832 fcoe_bd_tbl++;
1833 cached_sge->second_buf_addr.lo =
1834 fcoe_bd_tbl->buf_addr_lo;
1835 cached_sge->second_buf_addr.hi =
1836 fcoe_bd_tbl->buf_addr_hi;
1837 cached_sge->second_buf_rem = fcoe_bd_tbl->buf_len;
1838 task->txwr_rxrd.const_ctx.init_flags |= 1 <<
1839 FCOE_TCE_TX_WR_RX_RD_CONST_CACHED_SGE_SHIFT;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001840 } else {
1841
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001842 sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
1843 sgl->mul_sgl.cur_sge_addr.hi =
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001844 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +03001845 sgl->mul_sgl.sgl_size = bd_count;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001846 }
Bhanu Prakash Gollapudif3820b72011-07-27 11:32:08 -07001847 } else {
1848 sgl->mul_sgl.cur_sge_addr.lo = (u32)bd_tbl->bd_tbl_dma;
1849 sgl->mul_sgl.cur_sge_addr.hi =
1850 (u32)((u64)bd_tbl->bd_tbl_dma >> 32);
1851 sgl->mul_sgl.sgl_size = bd_count;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001852 }
1853}
1854
1855/**
1856 * bnx2fc_setup_task_ctx - allocate and map task context
1857 *
1858 * @hba: pointer to adapter structure
1859 *
1860 * allocate memory for task context, and associated BD table to be used
1861 * by firmware
1862 *
1863 */
1864int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba)
1865{
1866 int rc = 0;
1867 struct regpair *task_ctx_bdt;
1868 dma_addr_t addr;
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001869 int task_ctx_arr_sz;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001870 int i;
1871
1872 /*
1873 * Allocate task context bd table. A page size of bd table
1874 * can map 256 buffers. Each buffer contains 32 task context
1875 * entries. Hence the limit with one page is 8192 task context
1876 * entries.
1877 */
Luis Chamberlain750afb02019-01-04 09:23:09 +01001878 hba->task_ctx_bd_tbl = dma_alloc_coherent(&hba->pcidev->dev,
1879 PAGE_SIZE,
1880 &hba->task_ctx_bd_dma,
1881 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001882 if (!hba->task_ctx_bd_tbl) {
1883 printk(KERN_ERR PFX "unable to allocate task context BDT\n");
1884 rc = -1;
1885 goto out;
1886 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001887
1888 /*
1889 * Allocate task_ctx which is an array of pointers pointing to
1890 * a page containing 32 task contexts
1891 */
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001892 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
1893 hba->task_ctx = kzalloc((task_ctx_arr_sz * sizeof(void *)),
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001894 GFP_KERNEL);
1895 if (!hba->task_ctx) {
1896 printk(KERN_ERR PFX "unable to allocate task context array\n");
1897 rc = -1;
1898 goto out1;
1899 }
1900
1901 /*
1902 * Allocate task_ctx_dma which is an array of dma addresses
1903 */
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001904 hba->task_ctx_dma = kmalloc((task_ctx_arr_sz *
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001905 sizeof(dma_addr_t)), GFP_KERNEL);
1906 if (!hba->task_ctx_dma) {
1907 printk(KERN_ERR PFX "unable to alloc context mapping array\n");
1908 rc = -1;
1909 goto out2;
1910 }
1911
1912 task_ctx_bdt = (struct regpair *)hba->task_ctx_bd_tbl;
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001913 for (i = 0; i < task_ctx_arr_sz; i++) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001914
Luis Chamberlain750afb02019-01-04 09:23:09 +01001915 hba->task_ctx[i] = dma_alloc_coherent(&hba->pcidev->dev,
1916 PAGE_SIZE,
1917 &hba->task_ctx_dma[i],
1918 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001919 if (!hba->task_ctx[i]) {
1920 printk(KERN_ERR PFX "unable to alloc task context\n");
1921 rc = -1;
1922 goto out3;
1923 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001924 addr = (u64)hba->task_ctx_dma[i];
1925 task_ctx_bdt->hi = cpu_to_le32((u64)addr >> 32);
1926 task_ctx_bdt->lo = cpu_to_le32((u32)addr);
1927 task_ctx_bdt++;
1928 }
1929 return 0;
1930
1931out3:
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001932 for (i = 0; i < task_ctx_arr_sz; i++) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001933 if (hba->task_ctx[i]) {
1934
1935 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1936 hba->task_ctx[i], hba->task_ctx_dma[i]);
1937 hba->task_ctx[i] = NULL;
1938 }
1939 }
1940
1941 kfree(hba->task_ctx_dma);
1942 hba->task_ctx_dma = NULL;
1943out2:
1944 kfree(hba->task_ctx);
1945 hba->task_ctx = NULL;
1946out1:
1947 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1948 hba->task_ctx_bd_tbl, hba->task_ctx_bd_dma);
1949 hba->task_ctx_bd_tbl = NULL;
1950out:
1951 return rc;
1952}
1953
1954void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba)
1955{
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001956 int task_ctx_arr_sz;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001957 int i;
1958
1959 if (hba->task_ctx_bd_tbl) {
1960 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1961 hba->task_ctx_bd_tbl,
1962 hba->task_ctx_bd_dma);
1963 hba->task_ctx_bd_tbl = NULL;
1964 }
1965
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001966 task_ctx_arr_sz = (hba->max_tasks / BNX2FC_TASKS_PER_PAGE);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001967 if (hba->task_ctx) {
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +00001968 for (i = 0; i < task_ctx_arr_sz; i++) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001969 if (hba->task_ctx[i]) {
1970 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
1971 hba->task_ctx[i],
1972 hba->task_ctx_dma[i]);
1973 hba->task_ctx[i] = NULL;
1974 }
1975 }
1976 kfree(hba->task_ctx);
1977 hba->task_ctx = NULL;
1978 }
1979
1980 kfree(hba->task_ctx_dma);
1981 hba->task_ctx_dma = NULL;
1982}
1983
1984static void bnx2fc_free_hash_table(struct bnx2fc_hba *hba)
1985{
1986 int i;
1987 int segment_count;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001988 u32 *pbl;
1989
Maurizio Lombardi91d9f802014-04-01 13:58:21 +02001990 if (hba->hash_tbl_segments) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001991
Maurizio Lombardi91d9f802014-04-01 13:58:21 +02001992 pbl = hba->hash_tbl_pbl;
1993 if (pbl) {
1994 segment_count = hba->hash_tbl_segment_count;
1995 for (i = 0; i < segment_count; ++i) {
1996 dma_addr_t dma_address;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08001997
Maurizio Lombardi91d9f802014-04-01 13:58:21 +02001998 dma_address = le32_to_cpu(*pbl);
1999 ++pbl;
2000 dma_address += ((u64)le32_to_cpu(*pbl)) << 32;
2001 ++pbl;
2002 dma_free_coherent(&hba->pcidev->dev,
2003 BNX2FC_HASH_TBL_CHUNK_SIZE,
2004 hba->hash_tbl_segments[i],
2005 dma_address);
2006 }
2007 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002008
Maurizio Lombardi91d9f802014-04-01 13:58:21 +02002009 kfree(hba->hash_tbl_segments);
2010 hba->hash_tbl_segments = NULL;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002011 }
2012
2013 if (hba->hash_tbl_pbl) {
2014 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2015 hba->hash_tbl_pbl,
2016 hba->hash_tbl_pbl_dma);
2017 hba->hash_tbl_pbl = NULL;
2018 }
2019}
2020
2021static int bnx2fc_allocate_hash_table(struct bnx2fc_hba *hba)
2022{
2023 int i;
2024 int hash_table_size;
2025 int segment_count;
2026 int segment_array_size;
2027 int dma_segment_array_size;
2028 dma_addr_t *dma_segment_array;
2029 u32 *pbl;
2030
2031 hash_table_size = BNX2FC_NUM_MAX_SESS * BNX2FC_MAX_ROWS_IN_HASH_TBL *
2032 sizeof(struct fcoe_hash_table_entry);
2033
2034 segment_count = hash_table_size + BNX2FC_HASH_TBL_CHUNK_SIZE - 1;
2035 segment_count /= BNX2FC_HASH_TBL_CHUNK_SIZE;
2036 hba->hash_tbl_segment_count = segment_count;
2037
2038 segment_array_size = segment_count * sizeof(*hba->hash_tbl_segments);
2039 hba->hash_tbl_segments = kzalloc(segment_array_size, GFP_KERNEL);
2040 if (!hba->hash_tbl_segments) {
2041 printk(KERN_ERR PFX "hash table pointers alloc failed\n");
2042 return -ENOMEM;
2043 }
2044 dma_segment_array_size = segment_count * sizeof(*dma_segment_array);
2045 dma_segment_array = kzalloc(dma_segment_array_size, GFP_KERNEL);
2046 if (!dma_segment_array) {
2047 printk(KERN_ERR PFX "hash table pointers (dma) alloc failed\n");
Maurizio Lombardifdbcbca2014-04-01 13:58:22 +02002048 goto cleanup_ht;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002049 }
2050
2051 for (i = 0; i < segment_count; ++i) {
Luis Chamberlain750afb02019-01-04 09:23:09 +01002052 hba->hash_tbl_segments[i] = dma_alloc_coherent(&hba->pcidev->dev,
2053 BNX2FC_HASH_TBL_CHUNK_SIZE,
2054 &dma_segment_array[i],
2055 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002056 if (!hba->hash_tbl_segments[i]) {
2057 printk(KERN_ERR PFX "hash segment alloc failed\n");
Maurizio Lombardifdbcbca2014-04-01 13:58:22 +02002058 goto cleanup_dma;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002059 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002060 }
2061
Luis Chamberlain750afb02019-01-04 09:23:09 +01002062 hba->hash_tbl_pbl = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
2063 &hba->hash_tbl_pbl_dma,
2064 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002065 if (!hba->hash_tbl_pbl) {
2066 printk(KERN_ERR PFX "hash table pbl alloc failed\n");
Maurizio Lombardifdbcbca2014-04-01 13:58:22 +02002067 goto cleanup_dma;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002068 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002069
2070 pbl = hba->hash_tbl_pbl;
2071 for (i = 0; i < segment_count; ++i) {
2072 u64 paddr = dma_segment_array[i];
2073 *pbl = cpu_to_le32((u32) paddr);
2074 ++pbl;
2075 *pbl = cpu_to_le32((u32) (paddr >> 32));
2076 ++pbl;
2077 }
2078 pbl = hba->hash_tbl_pbl;
2079 i = 0;
2080 while (*pbl && *(pbl + 1)) {
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002081 ++pbl;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002082 ++pbl;
2083 ++i;
2084 }
2085 kfree(dma_segment_array);
2086 return 0;
Maurizio Lombardifdbcbca2014-04-01 13:58:22 +02002087
2088cleanup_dma:
2089 for (i = 0; i < segment_count; ++i) {
2090 if (hba->hash_tbl_segments[i])
2091 dma_free_coherent(&hba->pcidev->dev,
2092 BNX2FC_HASH_TBL_CHUNK_SIZE,
2093 hba->hash_tbl_segments[i],
2094 dma_segment_array[i]);
2095 }
2096
2097 kfree(dma_segment_array);
2098
2099cleanup_ht:
2100 kfree(hba->hash_tbl_segments);
2101 hba->hash_tbl_segments = NULL;
2102 return -ENOMEM;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002103}
2104
2105/**
2106 * bnx2fc_setup_fw_resc - Allocate and map hash table and dummy buffer
2107 *
2108 * @hba: Pointer to adapter structure
2109 *
2110 */
2111int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba)
2112{
2113 u64 addr;
2114 u32 mem_size;
2115 int i;
2116
2117 if (bnx2fc_allocate_hash_table(hba))
2118 return -ENOMEM;
2119
2120 mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
Luis Chamberlain750afb02019-01-04 09:23:09 +01002121 hba->t2_hash_tbl_ptr = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
2122 &hba->t2_hash_tbl_ptr_dma,
2123 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002124 if (!hba->t2_hash_tbl_ptr) {
2125 printk(KERN_ERR PFX "unable to allocate t2 hash table ptr\n");
2126 bnx2fc_free_fw_resc(hba);
2127 return -ENOMEM;
2128 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002129
2130 mem_size = BNX2FC_NUM_MAX_SESS *
2131 sizeof(struct fcoe_t2_hash_table_entry);
Luis Chamberlain750afb02019-01-04 09:23:09 +01002132 hba->t2_hash_tbl = dma_alloc_coherent(&hba->pcidev->dev, mem_size,
2133 &hba->t2_hash_tbl_dma,
2134 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002135 if (!hba->t2_hash_tbl) {
2136 printk(KERN_ERR PFX "unable to allocate t2 hash table\n");
2137 bnx2fc_free_fw_resc(hba);
2138 return -ENOMEM;
2139 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002140 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
2141 addr = (unsigned long) hba->t2_hash_tbl_dma +
2142 ((i+1) * sizeof(struct fcoe_t2_hash_table_entry));
2143 hba->t2_hash_tbl[i].next.lo = addr & 0xffffffff;
2144 hba->t2_hash_tbl[i].next.hi = addr >> 32;
2145 }
2146
2147 hba->dummy_buffer = dma_alloc_coherent(&hba->pcidev->dev,
2148 PAGE_SIZE, &hba->dummy_buf_dma,
2149 GFP_KERNEL);
2150 if (!hba->dummy_buffer) {
2151 printk(KERN_ERR PFX "unable to alloc MP Dummy Buffer\n");
2152 bnx2fc_free_fw_resc(hba);
2153 return -ENOMEM;
2154 }
2155
Luis Chamberlain750afb02019-01-04 09:23:09 +01002156 hba->stats_buffer = dma_alloc_coherent(&hba->pcidev->dev, PAGE_SIZE,
2157 &hba->stats_buf_dma,
2158 GFP_KERNEL);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002159 if (!hba->stats_buffer) {
2160 printk(KERN_ERR PFX "unable to alloc Stats Buffer\n");
2161 bnx2fc_free_fw_resc(hba);
2162 return -ENOMEM;
2163 }
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002164
2165 return 0;
2166}
2167
2168void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba)
2169{
2170 u32 mem_size;
2171
2172 if (hba->stats_buffer) {
2173 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2174 hba->stats_buffer, hba->stats_buf_dma);
2175 hba->stats_buffer = NULL;
2176 }
2177
2178 if (hba->dummy_buffer) {
2179 dma_free_coherent(&hba->pcidev->dev, PAGE_SIZE,
2180 hba->dummy_buffer, hba->dummy_buf_dma);
2181 hba->dummy_buffer = NULL;
2182 }
2183
2184 if (hba->t2_hash_tbl_ptr) {
2185 mem_size = BNX2FC_NUM_MAX_SESS * sizeof(struct regpair);
2186 dma_free_coherent(&hba->pcidev->dev, mem_size,
2187 hba->t2_hash_tbl_ptr,
2188 hba->t2_hash_tbl_ptr_dma);
2189 hba->t2_hash_tbl_ptr = NULL;
2190 }
2191
2192 if (hba->t2_hash_tbl) {
2193 mem_size = BNX2FC_NUM_MAX_SESS *
2194 sizeof(struct fcoe_t2_hash_table_entry);
2195 dma_free_coherent(&hba->pcidev->dev, mem_size,
2196 hba->t2_hash_tbl, hba->t2_hash_tbl_dma);
2197 hba->t2_hash_tbl = NULL;
2198 }
2199 bnx2fc_free_hash_table(hba);
2200}