1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/types.h>
34 #include <asm/byteorder.h>
35 #include <asm/param.h>
36 #include <linux/delay.h>
37 #include <linux/dma-mapping.h>
38 #include <linux/etherdevice.h>
39 #include <linux/interrupt.h>
40 #include <linux/kernel.h>
41 #include <linux/log2.h>
42 #include <linux/module.h>
43 #include <linux/pci.h>
44 #include <linux/slab.h>
45 #include <linux/stddef.h>
46 #include <linux/string.h>
47 #include <linux/version.h>
48 #include <linux/workqueue.h>
49 #include <linux/errno.h>
50 #include <linux/list.h>
51 #include <linux/spinlock.h>
52 #include <linux/qed/qed_iscsi_if.h>
55 #include "qed_dev_api.h"
59 #include "qed_iscsi.h"
63 #include "qed_sriov.h"
64 #include "qed_reg_addr.h"
66 struct qed_iscsi_conn
{
67 struct list_head list_entry
;
78 dma_addr_t sq_pbl_addr
;
79 struct qed_chain r2tq
;
83 struct tcp_upload_params
*tcp_upload_params_virt_addr
;
84 dma_addr_t tcp_upload_params_phys_addr
;
85 struct scsi_terminate_extra_params
*queue_cnts_virt_addr
;
86 dma_addr_t queue_cnts_phys_addr
;
87 dma_addr_t syn_phy_addr
;
89 u16 syn_ip_payload_length
;
114 u32 ka_timeout_delta
;
115 u32 rt_timeout_delta
;
117 u8 snd_wnd_probe_cnt
;
132 u32 ts_ticks_per_second
;
133 u16 da_timeout_value
;
139 u32 max_recv_pdu_length
;
140 u32 max_send_pdu_length
;
141 u32 first_seq_length
;
146 u8 abortive_dsconnect
;
150 qed_sp_iscsi_func_start(struct qed_hwfn
*p_hwfn
,
151 enum spq_mode comp_mode
,
152 struct qed_spq_comp_cb
*p_comp_addr
,
153 void *event_context
, iscsi_event_cb_t async_event_cb
)
155 struct iscsi_init_ramrod_params
*p_ramrod
= NULL
;
156 struct scsi_init_func_queues
*p_queue
= NULL
;
157 struct qed_iscsi_pf_params
*p_params
= NULL
;
158 struct iscsi_spe_func_init
*p_init
= NULL
;
159 struct qed_spq_entry
*p_ent
= NULL
;
160 struct qed_sp_init_data init_data
;
167 memset(&init_data
, 0, sizeof(init_data
));
168 init_data
.cid
= qed_spq_get_cid(p_hwfn
);
169 init_data
.opaque_fid
= p_hwfn
->hw_info
.opaque_fid
;
170 init_data
.comp_mode
= comp_mode
;
171 init_data
.p_comp_data
= p_comp_addr
;
173 rc
= qed_sp_init_request(p_hwfn
, &p_ent
,
174 ISCSI_RAMROD_CMD_ID_INIT_FUNC
,
175 PROTOCOLID_ISCSI
, &init_data
);
179 p_ramrod
= &p_ent
->ramrod
.iscsi_init
;
180 p_init
= &p_ramrod
->iscsi_init_spe
;
181 p_params
= &p_hwfn
->pf_params
.iscsi_pf_params
;
182 p_queue
= &p_init
->q_params
;
184 SET_FIELD(p_init
->hdr
.flags
,
185 ISCSI_SLOW_PATH_HDR_LAYER_CODE
, ISCSI_SLOW_PATH_LAYER_CODE
);
186 p_init
->hdr
.op_code
= ISCSI_RAMROD_CMD_ID_INIT_FUNC
;
188 val
= p_params
->half_way_close_timeout
;
189 p_init
->half_way_close_timeout
= cpu_to_le16(val
);
190 p_init
->num_sq_pages_in_ring
= p_params
->num_sq_pages_in_ring
;
191 p_init
->num_r2tq_pages_in_ring
= p_params
->num_r2tq_pages_in_ring
;
192 p_init
->num_uhq_pages_in_ring
= p_params
->num_uhq_pages_in_ring
;
193 p_init
->ooo_enable
= p_params
->ooo_enable
;
194 p_init
->ll2_rx_queue_id
= p_hwfn
->hw_info
.resc_start
[QED_LL2_QUEUE
] +
195 p_params
->ll2_ooo_queue_id
;
196 p_init
->func_params
.log_page_size
= p_params
->log_page_size
;
197 val
= p_params
->num_tasks
;
198 p_init
->func_params
.num_tasks
= cpu_to_le16(val
);
199 p_init
->debug_mode
.flags
= p_params
->debug_mode
;
201 DMA_REGPAIR_LE(p_queue
->glbl_q_params_addr
,
202 p_params
->glbl_q_params_addr
);
204 val
= p_params
->cq_num_entries
;
205 p_queue
->cq_num_entries
= cpu_to_le16(val
);
206 val
= p_params
->cmdq_num_entries
;
207 p_queue
->cmdq_num_entries
= cpu_to_le16(val
);
208 p_queue
->num_queues
= p_params
->num_queues
;
209 dval
= (u8
)p_hwfn
->hw_info
.resc_start
[QED_CMDQS_CQS
];
210 p_queue
->queue_relative_offset
= (u8
)dval
;
211 p_queue
->cq_sb_pi
= p_params
->gl_rq_pi
;
212 p_queue
->cmdq_sb_pi
= p_params
->gl_cmd_pi
;
214 for (i
= 0; i
< p_params
->num_queues
; i
++) {
215 val
= p_hwfn
->sbs_info
[i
]->igu_sb_id
;
216 p_queue
->cq_cmdq_sb_num_arr
[i
] = cpu_to_le16(val
);
219 p_queue
->bdq_resource_id
= ISCSI_BDQ_ID(p_hwfn
->port_id
);
221 DMA_REGPAIR_LE(p_queue
->bdq_pbl_base_address
[BDQ_ID_RQ
],
222 p_params
->bdq_pbl_base_addr
[BDQ_ID_RQ
]);
223 p_queue
->bdq_pbl_num_entries
[BDQ_ID_RQ
] =
224 p_params
->bdq_pbl_num_entries
[BDQ_ID_RQ
];
225 val
= p_params
->bdq_xoff_threshold
[BDQ_ID_RQ
];
226 p_queue
->bdq_xoff_threshold
[BDQ_ID_RQ
] = cpu_to_le16(val
);
227 val
= p_params
->bdq_xon_threshold
[BDQ_ID_RQ
];
228 p_queue
->bdq_xon_threshold
[BDQ_ID_RQ
] = cpu_to_le16(val
);
230 DMA_REGPAIR_LE(p_queue
->bdq_pbl_base_address
[BDQ_ID_IMM_DATA
],
231 p_params
->bdq_pbl_base_addr
[BDQ_ID_IMM_DATA
]);
232 p_queue
->bdq_pbl_num_entries
[BDQ_ID_IMM_DATA
] =
233 p_params
->bdq_pbl_num_entries
[BDQ_ID_IMM_DATA
];
234 val
= p_params
->bdq_xoff_threshold
[BDQ_ID_IMM_DATA
];
235 p_queue
->bdq_xoff_threshold
[BDQ_ID_IMM_DATA
] = cpu_to_le16(val
);
236 val
= p_params
->bdq_xon_threshold
[BDQ_ID_IMM_DATA
];
237 p_queue
->bdq_xon_threshold
[BDQ_ID_IMM_DATA
] = cpu_to_le16(val
);
238 val
= p_params
->rq_buffer_size
;
239 p_queue
->rq_buffer_size
= cpu_to_le16(val
);
240 if (p_params
->is_target
) {
241 SET_FIELD(p_queue
->q_validity
,
242 SCSI_INIT_FUNC_QUEUES_RQ_VALID
, 1);
243 if (p_queue
->bdq_pbl_num_entries
[BDQ_ID_IMM_DATA
])
244 SET_FIELD(p_queue
->q_validity
,
245 SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID
, 1);
246 SET_FIELD(p_queue
->q_validity
,
247 SCSI_INIT_FUNC_QUEUES_CMD_VALID
, 1);
249 SET_FIELD(p_queue
->q_validity
,
250 SCSI_INIT_FUNC_QUEUES_RQ_VALID
, 1);
252 p_ramrod
->tcp_init
.two_msl_timer
= cpu_to_le32(p_params
->two_msl_timer
);
253 val
= p_params
->tx_sws_timer
;
254 p_ramrod
->tcp_init
.tx_sws_timer
= cpu_to_le16(val
);
255 p_ramrod
->tcp_init
.maxfinrt
= p_params
->max_fin_rt
;
257 p_hwfn
->p_iscsi_info
->event_context
= event_context
;
258 p_hwfn
->p_iscsi_info
->event_cb
= async_event_cb
;
260 return qed_spq_post(p_hwfn
, p_ent
, NULL
);
263 static int qed_sp_iscsi_conn_offload(struct qed_hwfn
*p_hwfn
,
264 struct qed_iscsi_conn
*p_conn
,
265 enum spq_mode comp_mode
,
266 struct qed_spq_comp_cb
*p_comp_addr
)
268 struct iscsi_spe_conn_offload
*p_ramrod
= NULL
;
269 struct tcp_offload_params_opt2
*p_tcp2
= NULL
;
270 struct tcp_offload_params
*p_tcp
= NULL
;
271 struct qed_spq_entry
*p_ent
= NULL
;
272 struct qed_sp_init_data init_data
;
273 union qed_qm_pq_params pq_params
;
274 u16 pq0_id
= 0, pq1_id
= 0;
275 dma_addr_t r2tq_pbl_addr
;
276 dma_addr_t xhq_pbl_addr
;
277 dma_addr_t uhq_pbl_addr
;
285 memset(&init_data
, 0, sizeof(init_data
));
286 init_data
.cid
= p_conn
->icid
;
287 init_data
.opaque_fid
= p_hwfn
->hw_info
.opaque_fid
;
288 init_data
.comp_mode
= comp_mode
;
289 init_data
.p_comp_data
= p_comp_addr
;
291 rc
= qed_sp_init_request(p_hwfn
, &p_ent
,
292 ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN
,
293 PROTOCOLID_ISCSI
, &init_data
);
297 p_ramrod
= &p_ent
->ramrod
.iscsi_conn_offload
;
299 /* Transmission PQ is the first of the PF */
300 memset(&pq_params
, 0, sizeof(pq_params
));
301 pq0_id
= qed_get_qm_pq(p_hwfn
, PROTOCOLID_ISCSI
, &pq_params
);
302 p_conn
->physical_q0
= cpu_to_le16(pq0_id
);
303 p_ramrod
->iscsi
.physical_q0
= cpu_to_le16(pq0_id
);
305 /* iSCSI Pure-ACK PQ */
306 pq_params
.iscsi
.q_idx
= 1;
307 pq1_id
= qed_get_qm_pq(p_hwfn
, PROTOCOLID_ISCSI
, &pq_params
);
308 p_conn
->physical_q1
= cpu_to_le16(pq1_id
);
309 p_ramrod
->iscsi
.physical_q1
= cpu_to_le16(pq1_id
);
311 p_ramrod
->hdr
.op_code
= ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN
;
312 SET_FIELD(p_ramrod
->hdr
.flags
, ISCSI_SLOW_PATH_HDR_LAYER_CODE
,
315 p_ramrod
->conn_id
= cpu_to_le16(p_conn
->conn_id
);
316 p_ramrod
->fw_cid
= cpu_to_le32(p_conn
->icid
);
318 DMA_REGPAIR_LE(p_ramrod
->iscsi
.sq_pbl_addr
, p_conn
->sq_pbl_addr
);
320 r2tq_pbl_addr
= qed_chain_get_pbl_phys(&p_conn
->r2tq
);
321 DMA_REGPAIR_LE(p_ramrod
->iscsi
.r2tq_pbl_addr
, r2tq_pbl_addr
);
323 xhq_pbl_addr
= qed_chain_get_pbl_phys(&p_conn
->xhq
);
324 DMA_REGPAIR_LE(p_ramrod
->iscsi
.xhq_pbl_addr
, xhq_pbl_addr
);
326 uhq_pbl_addr
= qed_chain_get_pbl_phys(&p_conn
->uhq
);
327 DMA_REGPAIR_LE(p_ramrod
->iscsi
.uhq_pbl_addr
, uhq_pbl_addr
);
329 p_ramrod
->iscsi
.initial_ack
= cpu_to_le32(p_conn
->initial_ack
);
330 p_ramrod
->iscsi
.flags
= p_conn
->offl_flags
;
331 p_ramrod
->iscsi
.default_cq
= p_conn
->default_cq
;
332 p_ramrod
->iscsi
.stat_sn
= cpu_to_le32(p_conn
->stat_sn
);
334 if (!GET_FIELD(p_ramrod
->iscsi
.flags
,
335 ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B
)) {
336 p_tcp
= &p_ramrod
->tcp
;
338 p
= (u16
*)p_conn
->local_mac
;
339 p_tcp
->local_mac_addr_hi
= swab16(get_unaligned(p
));
340 p_tcp
->local_mac_addr_mid
= swab16(get_unaligned(p
+ 1));
341 p_tcp
->local_mac_addr_lo
= swab16(get_unaligned(p
+ 2));
343 p
= (u16
*)p_conn
->remote_mac
;
344 p_tcp
->remote_mac_addr_hi
= swab16(get_unaligned(p
));
345 p_tcp
->remote_mac_addr_mid
= swab16(get_unaligned(p
+ 1));
346 p_tcp
->remote_mac_addr_lo
= swab16(get_unaligned(p
+ 2));
348 p_tcp
->vlan_id
= cpu_to_le16(p_conn
->vlan_id
);
350 p_tcp
->flags
= p_conn
->tcp_flags
;
351 p_tcp
->ip_version
= p_conn
->ip_version
;
352 for (i
= 0; i
< 4; i
++) {
353 dval
= p_conn
->remote_ip
[i
];
354 p_tcp
->remote_ip
[i
] = cpu_to_le32(dval
);
355 dval
= p_conn
->local_ip
[i
];
356 p_tcp
->local_ip
[i
] = cpu_to_le32(dval
);
358 p_tcp
->ka_max_probe_cnt
= p_conn
->ka_max_probe_cnt
;
359 p_tcp
->dup_ack_theshold
= p_conn
->dup_ack_theshold
;
361 p_tcp
->rcv_next
= cpu_to_le32(p_conn
->rcv_next
);
362 p_tcp
->snd_una
= cpu_to_le32(p_conn
->snd_una
);
363 p_tcp
->snd_next
= cpu_to_le32(p_conn
->snd_next
);
364 p_tcp
->snd_max
= cpu_to_le32(p_conn
->snd_max
);
365 p_tcp
->snd_wnd
= cpu_to_le32(p_conn
->snd_wnd
);
366 p_tcp
->rcv_wnd
= cpu_to_le32(p_conn
->rcv_wnd
);
367 p_tcp
->snd_wl1
= cpu_to_le32(p_conn
->snd_wl1
);
368 p_tcp
->cwnd
= cpu_to_le32(p_conn
->cwnd
);
369 p_tcp
->ss_thresh
= cpu_to_le32(p_conn
->ss_thresh
);
370 p_tcp
->srtt
= cpu_to_le16(p_conn
->srtt
);
371 p_tcp
->rtt_var
= cpu_to_le16(p_conn
->rtt_var
);
372 p_tcp
->ts_time
= cpu_to_le32(p_conn
->ts_time
);
373 p_tcp
->ts_recent
= cpu_to_le32(p_conn
->ts_recent
);
374 p_tcp
->ts_recent_age
= cpu_to_le32(p_conn
->ts_recent_age
);
375 p_tcp
->total_rt
= cpu_to_le32(p_conn
->total_rt
);
376 dval
= p_conn
->ka_timeout_delta
;
377 p_tcp
->ka_timeout_delta
= cpu_to_le32(dval
);
378 dval
= p_conn
->rt_timeout_delta
;
379 p_tcp
->rt_timeout_delta
= cpu_to_le32(dval
);
380 p_tcp
->dup_ack_cnt
= p_conn
->dup_ack_cnt
;
381 p_tcp
->snd_wnd_probe_cnt
= p_conn
->snd_wnd_probe_cnt
;
382 p_tcp
->ka_probe_cnt
= p_conn
->ka_probe_cnt
;
383 p_tcp
->rt_cnt
= p_conn
->rt_cnt
;
384 p_tcp
->flow_label
= cpu_to_le32(p_conn
->flow_label
);
385 p_tcp
->ka_timeout
= cpu_to_le32(p_conn
->ka_timeout
);
386 p_tcp
->ka_interval
= cpu_to_le32(p_conn
->ka_interval
);
387 p_tcp
->max_rt_time
= cpu_to_le32(p_conn
->max_rt_time
);
388 dval
= p_conn
->initial_rcv_wnd
;
389 p_tcp
->initial_rcv_wnd
= cpu_to_le32(dval
);
390 p_tcp
->ttl
= p_conn
->ttl
;
391 p_tcp
->tos_or_tc
= p_conn
->tos_or_tc
;
392 p_tcp
->remote_port
= cpu_to_le16(p_conn
->remote_port
);
393 p_tcp
->local_port
= cpu_to_le16(p_conn
->local_port
);
394 p_tcp
->mss
= cpu_to_le16(p_conn
->mss
);
395 p_tcp
->snd_wnd_scale
= p_conn
->snd_wnd_scale
;
396 p_tcp
->rcv_wnd_scale
= p_conn
->rcv_wnd_scale
;
397 dval
= p_conn
->ts_ticks_per_second
;
398 p_tcp
->ts_ticks_per_second
= cpu_to_le32(dval
);
399 wval
= p_conn
->da_timeout_value
;
400 p_tcp
->da_timeout_value
= cpu_to_le16(wval
);
401 p_tcp
->ack_frequency
= p_conn
->ack_frequency
;
402 p_tcp
->connect_mode
= p_conn
->connect_mode
;
405 &((struct iscsi_spe_conn_offload_option2
*)p_ramrod
)->tcp
;
407 p
= (u16
*)p_conn
->local_mac
;
408 p_tcp2
->local_mac_addr_hi
= swab16(get_unaligned(p
));
409 p_tcp2
->local_mac_addr_mid
= swab16(get_unaligned(p
+ 1));
410 p_tcp2
->local_mac_addr_lo
= swab16(get_unaligned(p
+ 2));
412 p
= (u16
*)p_conn
->remote_mac
;
413 p_tcp2
->remote_mac_addr_hi
= swab16(get_unaligned(p
));
414 p_tcp2
->remote_mac_addr_mid
= swab16(get_unaligned(p
+ 1));
415 p_tcp2
->remote_mac_addr_lo
= swab16(get_unaligned(p
+ 2));
417 p_tcp2
->vlan_id
= cpu_to_le16(p_conn
->vlan_id
);
418 p_tcp2
->flags
= p_conn
->tcp_flags
;
420 p_tcp2
->ip_version
= p_conn
->ip_version
;
421 for (i
= 0; i
< 4; i
++) {
422 dval
= p_conn
->remote_ip
[i
];
423 p_tcp2
->remote_ip
[i
] = cpu_to_le32(dval
);
424 dval
= p_conn
->local_ip
[i
];
425 p_tcp2
->local_ip
[i
] = cpu_to_le32(dval
);
428 p_tcp2
->flow_label
= cpu_to_le32(p_conn
->flow_label
);
429 p_tcp2
->ttl
= p_conn
->ttl
;
430 p_tcp2
->tos_or_tc
= p_conn
->tos_or_tc
;
431 p_tcp2
->remote_port
= cpu_to_le16(p_conn
->remote_port
);
432 p_tcp2
->local_port
= cpu_to_le16(p_conn
->local_port
);
433 p_tcp2
->mss
= cpu_to_le16(p_conn
->mss
);
434 p_tcp2
->rcv_wnd_scale
= p_conn
->rcv_wnd_scale
;
435 p_tcp2
->connect_mode
= p_conn
->connect_mode
;
436 wval
= p_conn
->syn_ip_payload_length
;
437 p_tcp2
->syn_ip_payload_length
= cpu_to_le16(wval
);
438 p_tcp2
->syn_phy_addr_lo
= DMA_LO_LE(p_conn
->syn_phy_addr
);
439 p_tcp2
->syn_phy_addr_hi
= DMA_HI_LE(p_conn
->syn_phy_addr
);
442 return qed_spq_post(p_hwfn
, p_ent
, NULL
);
445 static int qed_sp_iscsi_conn_update(struct qed_hwfn
*p_hwfn
,
446 struct qed_iscsi_conn
*p_conn
,
447 enum spq_mode comp_mode
,
448 struct qed_spq_comp_cb
*p_comp_addr
)
450 struct iscsi_conn_update_ramrod_params
*p_ramrod
= NULL
;
451 struct qed_spq_entry
*p_ent
= NULL
;
452 struct qed_sp_init_data init_data
;
457 memset(&init_data
, 0, sizeof(init_data
));
458 init_data
.cid
= p_conn
->icid
;
459 init_data
.opaque_fid
= p_hwfn
->hw_info
.opaque_fid
;
460 init_data
.comp_mode
= comp_mode
;
461 init_data
.p_comp_data
= p_comp_addr
;
463 rc
= qed_sp_init_request(p_hwfn
, &p_ent
,
464 ISCSI_RAMROD_CMD_ID_UPDATE_CONN
,
465 PROTOCOLID_ISCSI
, &init_data
);
469 p_ramrod
= &p_ent
->ramrod
.iscsi_conn_update
;
470 p_ramrod
->hdr
.op_code
= ISCSI_RAMROD_CMD_ID_UPDATE_CONN
;
471 SET_FIELD(p_ramrod
->hdr
.flags
,
472 ISCSI_SLOW_PATH_HDR_LAYER_CODE
, p_conn
->layer_code
);
474 p_ramrod
->conn_id
= cpu_to_le16(p_conn
->conn_id
);
475 p_ramrod
->fw_cid
= cpu_to_le32(p_conn
->icid
);
476 p_ramrod
->flags
= p_conn
->update_flag
;
477 p_ramrod
->max_seq_size
= cpu_to_le32(p_conn
->max_seq_size
);
478 dval
= p_conn
->max_recv_pdu_length
;
479 p_ramrod
->max_recv_pdu_length
= cpu_to_le32(dval
);
480 dval
= p_conn
->max_send_pdu_length
;
481 p_ramrod
->max_send_pdu_length
= cpu_to_le32(dval
);
482 dval
= p_conn
->first_seq_length
;
483 p_ramrod
->first_seq_length
= cpu_to_le32(dval
);
484 p_ramrod
->exp_stat_sn
= cpu_to_le32(p_conn
->exp_stat_sn
);
486 return qed_spq_post(p_hwfn
, p_ent
, NULL
);
489 static int qed_sp_iscsi_conn_terminate(struct qed_hwfn
*p_hwfn
,
490 struct qed_iscsi_conn
*p_conn
,
491 enum spq_mode comp_mode
,
492 struct qed_spq_comp_cb
*p_comp_addr
)
494 struct iscsi_spe_conn_termination
*p_ramrod
= NULL
;
495 struct qed_spq_entry
*p_ent
= NULL
;
496 struct qed_sp_init_data init_data
;
500 memset(&init_data
, 0, sizeof(init_data
));
501 init_data
.cid
= p_conn
->icid
;
502 init_data
.opaque_fid
= p_hwfn
->hw_info
.opaque_fid
;
503 init_data
.comp_mode
= comp_mode
;
504 init_data
.p_comp_data
= p_comp_addr
;
506 rc
= qed_sp_init_request(p_hwfn
, &p_ent
,
507 ISCSI_RAMROD_CMD_ID_TERMINATION_CONN
,
508 PROTOCOLID_ISCSI
, &init_data
);
512 p_ramrod
= &p_ent
->ramrod
.iscsi_conn_terminate
;
513 p_ramrod
->hdr
.op_code
= ISCSI_RAMROD_CMD_ID_TERMINATION_CONN
;
514 SET_FIELD(p_ramrod
->hdr
.flags
,
515 ISCSI_SLOW_PATH_HDR_LAYER_CODE
, p_conn
->layer_code
);
517 p_ramrod
->conn_id
= cpu_to_le16(p_conn
->conn_id
);
518 p_ramrod
->fw_cid
= cpu_to_le32(p_conn
->icid
);
519 p_ramrod
->abortive
= p_conn
->abortive_dsconnect
;
521 DMA_REGPAIR_LE(p_ramrod
->query_params_addr
,
522 p_conn
->tcp_upload_params_phys_addr
);
523 DMA_REGPAIR_LE(p_ramrod
->queue_cnts_addr
, p_conn
->queue_cnts_phys_addr
);
525 return qed_spq_post(p_hwfn
, p_ent
, NULL
);
528 static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn
*p_hwfn
,
529 struct qed_iscsi_conn
*p_conn
,
530 enum spq_mode comp_mode
,
531 struct qed_spq_comp_cb
*p_comp_addr
)
533 struct iscsi_slow_path_hdr
*p_ramrod
= NULL
;
534 struct qed_spq_entry
*p_ent
= NULL
;
535 struct qed_sp_init_data init_data
;
539 memset(&init_data
, 0, sizeof(init_data
));
540 init_data
.cid
= p_conn
->icid
;
541 init_data
.opaque_fid
= p_hwfn
->hw_info
.opaque_fid
;
542 init_data
.comp_mode
= comp_mode
;
543 init_data
.p_comp_data
= p_comp_addr
;
545 rc
= qed_sp_init_request(p_hwfn
, &p_ent
,
546 ISCSI_RAMROD_CMD_ID_CLEAR_SQ
,
547 PROTOCOLID_ISCSI
, &init_data
);
551 p_ramrod
= &p_ent
->ramrod
.iscsi_empty
;
552 p_ramrod
->op_code
= ISCSI_RAMROD_CMD_ID_CLEAR_SQ
;
553 SET_FIELD(p_ramrod
->flags
,
554 ISCSI_SLOW_PATH_HDR_LAYER_CODE
, p_conn
->layer_code
);
556 return qed_spq_post(p_hwfn
, p_ent
, NULL
);
559 static int qed_sp_iscsi_func_stop(struct qed_hwfn
*p_hwfn
,
560 enum spq_mode comp_mode
,
561 struct qed_spq_comp_cb
*p_comp_addr
)
563 struct iscsi_spe_func_dstry
*p_ramrod
= NULL
;
564 struct qed_spq_entry
*p_ent
= NULL
;
565 struct qed_sp_init_data init_data
;
569 memset(&init_data
, 0, sizeof(init_data
));
570 init_data
.cid
= qed_spq_get_cid(p_hwfn
);
571 init_data
.opaque_fid
= p_hwfn
->hw_info
.opaque_fid
;
572 init_data
.comp_mode
= comp_mode
;
573 init_data
.p_comp_data
= p_comp_addr
;
575 rc
= qed_sp_init_request(p_hwfn
, &p_ent
,
576 ISCSI_RAMROD_CMD_ID_DESTROY_FUNC
,
577 PROTOCOLID_ISCSI
, &init_data
);
581 p_ramrod
= &p_ent
->ramrod
.iscsi_destroy
;
582 p_ramrod
->hdr
.op_code
= ISCSI_RAMROD_CMD_ID_DESTROY_FUNC
;
584 return qed_spq_post(p_hwfn
, p_ent
, NULL
);
587 static void __iomem
*qed_iscsi_get_db_addr(struct qed_hwfn
*p_hwfn
, u32 cid
)
589 return (u8 __iomem
*)p_hwfn
->doorbells
+
590 qed_db_addr(cid
, DQ_DEMS_LEGACY
);
593 static void __iomem
*qed_iscsi_get_primary_bdq_prod(struct qed_hwfn
*p_hwfn
,
596 u8 bdq_function_id
= ISCSI_BDQ_ID(p_hwfn
->port_id
);
598 return (u8 __iomem
*)p_hwfn
->regview
+ GTT_BAR0_MAP_REG_MSDM_RAM
+
599 MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id
,
603 static void __iomem
*qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn
*p_hwfn
,
606 u8 bdq_function_id
= ISCSI_BDQ_ID(p_hwfn
->port_id
);
608 return (u8 __iomem
*)p_hwfn
->regview
+ GTT_BAR0_MAP_REG_TSDM_RAM
+
609 TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id
,
613 static int qed_iscsi_setup_connection(struct qed_hwfn
*p_hwfn
,
614 struct qed_iscsi_conn
*p_conn
)
616 if (!p_conn
->queue_cnts_virt_addr
)
618 memset(p_conn
->queue_cnts_virt_addr
, 0,
619 sizeof(*p_conn
->queue_cnts_virt_addr
));
621 if (!p_conn
->tcp_upload_params_virt_addr
)
623 memset(p_conn
->tcp_upload_params_virt_addr
, 0,
624 sizeof(*p_conn
->tcp_upload_params_virt_addr
));
626 if (!p_conn
->r2tq
.p_virt_addr
)
628 qed_chain_pbl_zero_mem(&p_conn
->r2tq
);
630 if (!p_conn
->uhq
.p_virt_addr
)
632 qed_chain_pbl_zero_mem(&p_conn
->uhq
);
634 if (!p_conn
->xhq
.p_virt_addr
)
636 qed_chain_pbl_zero_mem(&p_conn
->xhq
);
643 static int qed_iscsi_allocate_connection(struct qed_hwfn
*p_hwfn
,
644 struct qed_iscsi_conn
**p_out_conn
)
646 u16 uhq_num_elements
= 0, xhq_num_elements
= 0, r2tq_num_elements
= 0;
647 struct scsi_terminate_extra_params
*p_q_cnts
= NULL
;
648 struct qed_iscsi_pf_params
*p_params
= NULL
;
649 struct tcp_upload_params
*p_tcp
= NULL
;
650 struct qed_iscsi_conn
*p_conn
= NULL
;
653 /* Try finding a free connection that can be used */
654 spin_lock_bh(&p_hwfn
->p_iscsi_info
->lock
);
655 if (!list_empty(&p_hwfn
->p_iscsi_info
->free_list
))
656 p_conn
= list_first_entry(&p_hwfn
->p_iscsi_info
->free_list
,
657 struct qed_iscsi_conn
, list_entry
);
659 list_del(&p_conn
->list_entry
);
660 spin_unlock_bh(&p_hwfn
->p_iscsi_info
->lock
);
661 *p_out_conn
= p_conn
;
664 spin_unlock_bh(&p_hwfn
->p_iscsi_info
->lock
);
666 /* Need to allocate a new connection */
667 p_params
= &p_hwfn
->pf_params
.iscsi_pf_params
;
669 p_conn
= kzalloc(sizeof(*p_conn
), GFP_KERNEL
);
673 p_q_cnts
= dma_alloc_coherent(&p_hwfn
->cdev
->pdev
->dev
,
675 &p_conn
->queue_cnts_phys_addr
,
678 goto nomem_queue_cnts_param
;
679 p_conn
->queue_cnts_virt_addr
= p_q_cnts
;
681 p_tcp
= dma_alloc_coherent(&p_hwfn
->cdev
->pdev
->dev
,
683 &p_conn
->tcp_upload_params_phys_addr
,
686 goto nomem_upload_param
;
687 p_conn
->tcp_upload_params_virt_addr
= p_tcp
;
689 r2tq_num_elements
= p_params
->num_r2tq_pages_in_ring
*
690 QED_CHAIN_PAGE_SIZE
/ 0x80;
691 rc
= qed_chain_alloc(p_hwfn
->cdev
,
692 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
694 QED_CHAIN_CNT_TYPE_U16
,
695 r2tq_num_elements
, 0x80, &p_conn
->r2tq
);
699 uhq_num_elements
= p_params
->num_uhq_pages_in_ring
*
700 QED_CHAIN_PAGE_SIZE
/ sizeof(struct iscsi_uhqe
);
701 rc
= qed_chain_alloc(p_hwfn
->cdev
,
702 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
704 QED_CHAIN_CNT_TYPE_U16
,
706 sizeof(struct iscsi_uhqe
), &p_conn
->uhq
);
710 xhq_num_elements
= uhq_num_elements
;
711 rc
= qed_chain_alloc(p_hwfn
->cdev
,
712 QED_CHAIN_USE_TO_CONSUME_PRODUCE
,
714 QED_CHAIN_CNT_TYPE_U16
,
716 sizeof(struct iscsi_xhqe
), &p_conn
->xhq
);
720 p_conn
->free_on_delete
= true;
721 *p_out_conn
= p_conn
;
725 qed_chain_free(p_hwfn
->cdev
, &p_conn
->uhq
);
727 qed_chain_free(p_hwfn
->cdev
, &p_conn
->r2tq
);
729 dma_free_coherent(&p_hwfn
->cdev
->pdev
->dev
,
730 sizeof(struct tcp_upload_params
),
731 p_conn
->tcp_upload_params_virt_addr
,
732 p_conn
->tcp_upload_params_phys_addr
);
734 dma_free_coherent(&p_hwfn
->cdev
->pdev
->dev
,
735 sizeof(struct scsi_terminate_extra_params
),
736 p_conn
->queue_cnts_virt_addr
,
737 p_conn
->queue_cnts_phys_addr
);
738 nomem_queue_cnts_param
:
744 static int qed_iscsi_acquire_connection(struct qed_hwfn
*p_hwfn
,
745 struct qed_iscsi_conn
*p_in_conn
,
746 struct qed_iscsi_conn
**p_out_conn
)
748 struct qed_iscsi_conn
*p_conn
= NULL
;
752 spin_lock_bh(&p_hwfn
->p_iscsi_info
->lock
);
753 rc
= qed_cxt_acquire_cid(p_hwfn
, PROTOCOLID_ISCSI
, &icid
);
754 spin_unlock_bh(&p_hwfn
->p_iscsi_info
->lock
);
758 /* Use input connection or allocate a new one */
762 rc
= qed_iscsi_allocate_connection(p_hwfn
, &p_conn
);
765 rc
= qed_iscsi_setup_connection(p_hwfn
, p_conn
);
768 spin_lock_bh(&p_hwfn
->p_iscsi_info
->lock
);
769 qed_cxt_release_cid(p_hwfn
, icid
);
770 spin_unlock_bh(&p_hwfn
->p_iscsi_info
->lock
);
775 p_conn
->conn_id
= (u16
)icid
;
776 p_conn
->fw_cid
= (p_hwfn
->hw_info
.opaque_fid
<< 16) | icid
;
778 *p_out_conn
= p_conn
;
783 static void qed_iscsi_release_connection(struct qed_hwfn
*p_hwfn
,
784 struct qed_iscsi_conn
*p_conn
)
786 spin_lock_bh(&p_hwfn
->p_iscsi_info
->lock
);
787 list_add_tail(&p_conn
->list_entry
, &p_hwfn
->p_iscsi_info
->free_list
);
788 qed_cxt_release_cid(p_hwfn
, p_conn
->icid
);
789 spin_unlock_bh(&p_hwfn
->p_iscsi_info
->lock
);
792 void qed_iscsi_free_connection(struct qed_hwfn
*p_hwfn
,
793 struct qed_iscsi_conn
*p_conn
)
795 qed_chain_free(p_hwfn
->cdev
, &p_conn
->xhq
);
796 qed_chain_free(p_hwfn
->cdev
, &p_conn
->uhq
);
797 qed_chain_free(p_hwfn
->cdev
, &p_conn
->r2tq
);
798 dma_free_coherent(&p_hwfn
->cdev
->pdev
->dev
,
799 sizeof(struct tcp_upload_params
),
800 p_conn
->tcp_upload_params_virt_addr
,
801 p_conn
->tcp_upload_params_phys_addr
);
802 dma_free_coherent(&p_hwfn
->cdev
->pdev
->dev
,
803 sizeof(struct scsi_terminate_extra_params
),
804 p_conn
->queue_cnts_virt_addr
,
805 p_conn
->queue_cnts_phys_addr
);
809 struct qed_iscsi_info
*qed_iscsi_alloc(struct qed_hwfn
*p_hwfn
)
811 struct qed_iscsi_info
*p_iscsi_info
;
813 p_iscsi_info
= kzalloc(sizeof(*p_iscsi_info
), GFP_KERNEL
);
817 INIT_LIST_HEAD(&p_iscsi_info
->free_list
);
821 void qed_iscsi_setup(struct qed_hwfn
*p_hwfn
,
822 struct qed_iscsi_info
*p_iscsi_info
)
824 spin_lock_init(&p_iscsi_info
->lock
);
827 void qed_iscsi_free(struct qed_hwfn
*p_hwfn
,
828 struct qed_iscsi_info
*p_iscsi_info
)
830 struct qed_iscsi_conn
*p_conn
= NULL
;
832 while (!list_empty(&p_hwfn
->p_iscsi_info
->free_list
)) {
833 p_conn
= list_first_entry(&p_hwfn
->p_iscsi_info
->free_list
,
834 struct qed_iscsi_conn
, list_entry
);
836 list_del(&p_conn
->list_entry
);
837 qed_iscsi_free_connection(p_hwfn
, p_conn
);
844 static void _qed_iscsi_get_tstats(struct qed_hwfn
*p_hwfn
,
845 struct qed_ptt
*p_ptt
,
846 struct qed_iscsi_stats
*p_stats
)
848 struct tstorm_iscsi_stats_drv tstats
;
851 memset(&tstats
, 0, sizeof(tstats
));
852 tstats_addr
= BAR0_MAP_REG_TSDM_RAM
+
853 TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn
->rel_pf_id
);
854 qed_memcpy_from(p_hwfn
, p_ptt
, &tstats
, tstats_addr
, sizeof(tstats
));
856 p_stats
->iscsi_rx_bytes_cnt
=
857 HILO_64_REGPAIR(tstats
.iscsi_rx_bytes_cnt
);
858 p_stats
->iscsi_rx_packet_cnt
=
859 HILO_64_REGPAIR(tstats
.iscsi_rx_packet_cnt
);
860 p_stats
->iscsi_cmdq_threshold_cnt
=
861 le32_to_cpu(tstats
.iscsi_cmdq_threshold_cnt
);
862 p_stats
->iscsi_rq_threshold_cnt
=
863 le32_to_cpu(tstats
.iscsi_rq_threshold_cnt
);
864 p_stats
->iscsi_immq_threshold_cnt
=
865 le32_to_cpu(tstats
.iscsi_immq_threshold_cnt
);
868 static void _qed_iscsi_get_mstats(struct qed_hwfn
*p_hwfn
,
869 struct qed_ptt
*p_ptt
,
870 struct qed_iscsi_stats
*p_stats
)
872 struct mstorm_iscsi_stats_drv mstats
;
875 memset(&mstats
, 0, sizeof(mstats
));
876 mstats_addr
= BAR0_MAP_REG_MSDM_RAM
+
877 MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn
->rel_pf_id
);
878 qed_memcpy_from(p_hwfn
, p_ptt
, &mstats
, mstats_addr
, sizeof(mstats
));
880 p_stats
->iscsi_rx_dropped_pdus_task_not_valid
=
881 HILO_64_REGPAIR(mstats
.iscsi_rx_dropped_pdus_task_not_valid
);
884 static void _qed_iscsi_get_ustats(struct qed_hwfn
*p_hwfn
,
885 struct qed_ptt
*p_ptt
,
886 struct qed_iscsi_stats
*p_stats
)
888 struct ustorm_iscsi_stats_drv ustats
;
891 memset(&ustats
, 0, sizeof(ustats
));
892 ustats_addr
= BAR0_MAP_REG_USDM_RAM
+
893 USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn
->rel_pf_id
);
894 qed_memcpy_from(p_hwfn
, p_ptt
, &ustats
, ustats_addr
, sizeof(ustats
));
896 p_stats
->iscsi_rx_data_pdu_cnt
=
897 HILO_64_REGPAIR(ustats
.iscsi_rx_data_pdu_cnt
);
898 p_stats
->iscsi_rx_r2t_pdu_cnt
=
899 HILO_64_REGPAIR(ustats
.iscsi_rx_r2t_pdu_cnt
);
900 p_stats
->iscsi_rx_total_pdu_cnt
=
901 HILO_64_REGPAIR(ustats
.iscsi_rx_total_pdu_cnt
);
904 static void _qed_iscsi_get_xstats(struct qed_hwfn
*p_hwfn
,
905 struct qed_ptt
*p_ptt
,
906 struct qed_iscsi_stats
*p_stats
)
908 struct xstorm_iscsi_stats_drv xstats
;
911 memset(&xstats
, 0, sizeof(xstats
));
912 xstats_addr
= BAR0_MAP_REG_XSDM_RAM
+
913 XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn
->rel_pf_id
);
914 qed_memcpy_from(p_hwfn
, p_ptt
, &xstats
, xstats_addr
, sizeof(xstats
));
916 p_stats
->iscsi_tx_go_to_slow_start_event_cnt
=
917 HILO_64_REGPAIR(xstats
.iscsi_tx_go_to_slow_start_event_cnt
);
918 p_stats
->iscsi_tx_fast_retransmit_event_cnt
=
919 HILO_64_REGPAIR(xstats
.iscsi_tx_fast_retransmit_event_cnt
);
922 static void _qed_iscsi_get_ystats(struct qed_hwfn
*p_hwfn
,
923 struct qed_ptt
*p_ptt
,
924 struct qed_iscsi_stats
*p_stats
)
926 struct ystorm_iscsi_stats_drv ystats
;
929 memset(&ystats
, 0, sizeof(ystats
));
930 ystats_addr
= BAR0_MAP_REG_YSDM_RAM
+
931 YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn
->rel_pf_id
);
932 qed_memcpy_from(p_hwfn
, p_ptt
, &ystats
, ystats_addr
, sizeof(ystats
));
934 p_stats
->iscsi_tx_data_pdu_cnt
=
935 HILO_64_REGPAIR(ystats
.iscsi_tx_data_pdu_cnt
);
936 p_stats
->iscsi_tx_r2t_pdu_cnt
=
937 HILO_64_REGPAIR(ystats
.iscsi_tx_r2t_pdu_cnt
);
938 p_stats
->iscsi_tx_total_pdu_cnt
=
939 HILO_64_REGPAIR(ystats
.iscsi_tx_total_pdu_cnt
);
942 static void _qed_iscsi_get_pstats(struct qed_hwfn
*p_hwfn
,
943 struct qed_ptt
*p_ptt
,
944 struct qed_iscsi_stats
*p_stats
)
946 struct pstorm_iscsi_stats_drv pstats
;
949 memset(&pstats
, 0, sizeof(pstats
));
950 pstats_addr
= BAR0_MAP_REG_PSDM_RAM
+
951 PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn
->rel_pf_id
);
952 qed_memcpy_from(p_hwfn
, p_ptt
, &pstats
, pstats_addr
, sizeof(pstats
));
954 p_stats
->iscsi_tx_bytes_cnt
=
955 HILO_64_REGPAIR(pstats
.iscsi_tx_bytes_cnt
);
956 p_stats
->iscsi_tx_packet_cnt
=
957 HILO_64_REGPAIR(pstats
.iscsi_tx_packet_cnt
);
960 static int qed_iscsi_get_stats(struct qed_hwfn
*p_hwfn
,
961 struct qed_iscsi_stats
*stats
)
963 struct qed_ptt
*p_ptt
;
965 memset(stats
, 0, sizeof(*stats
));
967 p_ptt
= qed_ptt_acquire(p_hwfn
);
969 DP_ERR(p_hwfn
, "Failed to acquire ptt\n");
973 _qed_iscsi_get_tstats(p_hwfn
, p_ptt
, stats
);
974 _qed_iscsi_get_mstats(p_hwfn
, p_ptt
, stats
);
975 _qed_iscsi_get_ustats(p_hwfn
, p_ptt
, stats
);
977 _qed_iscsi_get_xstats(p_hwfn
, p_ptt
, stats
);
978 _qed_iscsi_get_ystats(p_hwfn
, p_ptt
, stats
);
979 _qed_iscsi_get_pstats(p_hwfn
, p_ptt
, stats
);
981 qed_ptt_release(p_hwfn
, p_ptt
);
986 struct qed_hash_iscsi_con
{
987 struct hlist_node node
;
988 struct qed_iscsi_conn
*con
;
991 static int qed_fill_iscsi_dev_info(struct qed_dev
*cdev
,
992 struct qed_dev_iscsi_info
*info
)
994 struct qed_hwfn
*hwfn
= QED_LEADING_HWFN(cdev
);
998 memset(info
, 0, sizeof(*info
));
999 rc
= qed_fill_dev_info(cdev
, &info
->common
);
1001 info
->primary_dbq_rq_addr
=
1002 qed_iscsi_get_primary_bdq_prod(hwfn
, BDQ_ID_RQ
);
1003 info
->secondary_bdq_rq_addr
=
1004 qed_iscsi_get_secondary_bdq_prod(hwfn
, BDQ_ID_RQ
);
1009 static void qed_register_iscsi_ops(struct qed_dev
*cdev
,
1010 struct qed_iscsi_cb_ops
*ops
, void *cookie
)
1012 cdev
->protocol_ops
.iscsi
= ops
;
1013 cdev
->ops_cookie
= cookie
;
1016 static struct qed_hash_iscsi_con
*qed_iscsi_get_hash(struct qed_dev
*cdev
,
1019 struct qed_hash_iscsi_con
*hash_con
= NULL
;
1021 if (!(cdev
->flags
& QED_FLAG_STORAGE_STARTED
))
1024 hash_for_each_possible(cdev
->connections
, hash_con
, node
, handle
) {
1025 if (hash_con
->con
->icid
== handle
)
1029 if (!hash_con
|| (hash_con
->con
->icid
!= handle
))
1035 static int qed_iscsi_stop(struct qed_dev
*cdev
)
1039 if (!(cdev
->flags
& QED_FLAG_STORAGE_STARTED
)) {
1040 DP_NOTICE(cdev
, "iscsi already stopped\n");
1044 if (!hash_empty(cdev
->connections
)) {
1046 "Can't stop iscsi - not all connections were returned\n");
1050 /* Stop the iscsi */
1051 rc
= qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev
),
1052 QED_SPQ_MODE_EBLOCK
, NULL
);
1053 cdev
->flags
&= ~QED_FLAG_STORAGE_STARTED
;
1058 static int qed_iscsi_start(struct qed_dev
*cdev
,
1059 struct qed_iscsi_tid
*tasks
,
1060 void *event_context
,
1061 iscsi_event_cb_t async_event_cb
)
1064 struct qed_tid_mem
*tid_info
;
1066 if (cdev
->flags
& QED_FLAG_STORAGE_STARTED
) {
1067 DP_NOTICE(cdev
, "iscsi already started;\n");
1071 rc
= qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev
),
1072 QED_SPQ_MODE_EBLOCK
, NULL
, event_context
,
1075 DP_NOTICE(cdev
, "Failed to start iscsi\n");
1079 cdev
->flags
|= QED_FLAG_STORAGE_STARTED
;
1080 hash_init(cdev
->connections
);
1085 tid_info
= kzalloc(sizeof(*tid_info
), GFP_KERNEL
);
1088 qed_iscsi_stop(cdev
);
1092 rc
= qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev
),
1095 DP_NOTICE(cdev
, "Failed to gather task information\n");
1096 qed_iscsi_stop(cdev
);
1101 /* Fill task information */
1102 tasks
->size
= tid_info
->tid_size
;
1103 tasks
->num_tids_per_block
= tid_info
->num_tids_per_block
;
1104 memcpy(tasks
->blocks
, tid_info
->blocks
,
1105 MAX_TID_BLOCKS_ISCSI
* sizeof(u8
*));
1112 static int qed_iscsi_acquire_conn(struct qed_dev
*cdev
,
1114 u32
*fw_cid
, void __iomem
**p_doorbell
)
1116 struct qed_hash_iscsi_con
*hash_con
;
1119 /* Allocate a hashed connection */
1120 hash_con
= kzalloc(sizeof(*hash_con
), GFP_ATOMIC
);
1124 /* Acquire the connection */
1125 rc
= qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev
), NULL
,
1128 DP_NOTICE(cdev
, "Failed to acquire Connection\n");
1133 /* Added the connection to hash table */
1134 *handle
= hash_con
->con
->icid
;
1135 *fw_cid
= hash_con
->con
->fw_cid
;
1136 hash_add(cdev
->connections
, &hash_con
->node
, *handle
);
1139 *p_doorbell
= qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev
),
1145 static int qed_iscsi_release_conn(struct qed_dev
*cdev
, u32 handle
)
1147 struct qed_hash_iscsi_con
*hash_con
;
1149 hash_con
= qed_iscsi_get_hash(cdev
, handle
);
1151 DP_NOTICE(cdev
, "Failed to find connection for handle %d\n",
1156 hlist_del(&hash_con
->node
);
1157 qed_iscsi_release_connection(QED_LEADING_HWFN(cdev
), hash_con
->con
);
1163 static int qed_iscsi_offload_conn(struct qed_dev
*cdev
,
1165 struct qed_iscsi_params_offload
*conn_info
)
1167 struct qed_hash_iscsi_con
*hash_con
;
1168 struct qed_iscsi_conn
*con
;
1170 hash_con
= qed_iscsi_get_hash(cdev
, handle
);
1172 DP_NOTICE(cdev
, "Failed to find connection for handle %d\n",
1177 /* Update the connection with information from the params */
1178 con
= hash_con
->con
;
1180 ether_addr_copy(con
->local_mac
, conn_info
->src
.mac
);
1181 ether_addr_copy(con
->remote_mac
, conn_info
->dst
.mac
);
1182 memcpy(con
->local_ip
, conn_info
->src
.ip
, sizeof(con
->local_ip
));
1183 memcpy(con
->remote_ip
, conn_info
->dst
.ip
, sizeof(con
->remote_ip
));
1184 con
->local_port
= conn_info
->src
.port
;
1185 con
->remote_port
= conn_info
->dst
.port
;
1187 con
->layer_code
= conn_info
->layer_code
;
1188 con
->sq_pbl_addr
= conn_info
->sq_pbl_addr
;
1189 con
->initial_ack
= conn_info
->initial_ack
;
1190 con
->vlan_id
= conn_info
->vlan_id
;
1191 con
->tcp_flags
= conn_info
->tcp_flags
;
1192 con
->ip_version
= conn_info
->ip_version
;
1193 con
->default_cq
= conn_info
->default_cq
;
1194 con
->ka_max_probe_cnt
= conn_info
->ka_max_probe_cnt
;
1195 con
->dup_ack_theshold
= conn_info
->dup_ack_theshold
;
1196 con
->rcv_next
= conn_info
->rcv_next
;
1197 con
->snd_una
= conn_info
->snd_una
;
1198 con
->snd_next
= conn_info
->snd_next
;
1199 con
->snd_max
= conn_info
->snd_max
;
1200 con
->snd_wnd
= conn_info
->snd_wnd
;
1201 con
->rcv_wnd
= conn_info
->rcv_wnd
;
1202 con
->snd_wl1
= conn_info
->snd_wl1
;
1203 con
->cwnd
= conn_info
->cwnd
;
1204 con
->ss_thresh
= conn_info
->ss_thresh
;
1205 con
->srtt
= conn_info
->srtt
;
1206 con
->rtt_var
= conn_info
->rtt_var
;
1207 con
->ts_time
= conn_info
->ts_time
;
1208 con
->ts_recent
= conn_info
->ts_recent
;
1209 con
->ts_recent_age
= conn_info
->ts_recent_age
;
1210 con
->total_rt
= conn_info
->total_rt
;
1211 con
->ka_timeout_delta
= conn_info
->ka_timeout_delta
;
1212 con
->rt_timeout_delta
= conn_info
->rt_timeout_delta
;
1213 con
->dup_ack_cnt
= conn_info
->dup_ack_cnt
;
1214 con
->snd_wnd_probe_cnt
= conn_info
->snd_wnd_probe_cnt
;
1215 con
->ka_probe_cnt
= conn_info
->ka_probe_cnt
;
1216 con
->rt_cnt
= conn_info
->rt_cnt
;
1217 con
->flow_label
= conn_info
->flow_label
;
1218 con
->ka_timeout
= conn_info
->ka_timeout
;
1219 con
->ka_interval
= conn_info
->ka_interval
;
1220 con
->max_rt_time
= conn_info
->max_rt_time
;
1221 con
->initial_rcv_wnd
= conn_info
->initial_rcv_wnd
;
1222 con
->ttl
= conn_info
->ttl
;
1223 con
->tos_or_tc
= conn_info
->tos_or_tc
;
1224 con
->remote_port
= conn_info
->remote_port
;
1225 con
->local_port
= conn_info
->local_port
;
1226 con
->mss
= conn_info
->mss
;
1227 con
->snd_wnd_scale
= conn_info
->snd_wnd_scale
;
1228 con
->rcv_wnd_scale
= conn_info
->rcv_wnd_scale
;
1229 con
->ts_ticks_per_second
= conn_info
->ts_ticks_per_second
;
1230 con
->da_timeout_value
= conn_info
->da_timeout_value
;
1231 con
->ack_frequency
= conn_info
->ack_frequency
;
1233 /* Set default values on other connection fields */
1234 con
->offl_flags
= 0x1;
1236 return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev
), con
,
1237 QED_SPQ_MODE_EBLOCK
, NULL
);
1240 static int qed_iscsi_update_conn(struct qed_dev
*cdev
,
1242 struct qed_iscsi_params_update
*conn_info
)
1244 struct qed_hash_iscsi_con
*hash_con
;
1245 struct qed_iscsi_conn
*con
;
1247 hash_con
= qed_iscsi_get_hash(cdev
, handle
);
1249 DP_NOTICE(cdev
, "Failed to find connection for handle %d\n",
1254 /* Update the connection with information from the params */
1255 con
= hash_con
->con
;
1256 con
->update_flag
= conn_info
->update_flag
;
1257 con
->max_seq_size
= conn_info
->max_seq_size
;
1258 con
->max_recv_pdu_length
= conn_info
->max_recv_pdu_length
;
1259 con
->max_send_pdu_length
= conn_info
->max_send_pdu_length
;
1260 con
->first_seq_length
= conn_info
->first_seq_length
;
1261 con
->exp_stat_sn
= conn_info
->exp_stat_sn
;
1263 return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev
), con
,
1264 QED_SPQ_MODE_EBLOCK
, NULL
);
1267 static int qed_iscsi_clear_conn_sq(struct qed_dev
*cdev
, u32 handle
)
1269 struct qed_hash_iscsi_con
*hash_con
;
1271 hash_con
= qed_iscsi_get_hash(cdev
, handle
);
1273 DP_NOTICE(cdev
, "Failed to find connection for handle %d\n",
1278 return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev
),
1280 QED_SPQ_MODE_EBLOCK
, NULL
);
1283 static int qed_iscsi_destroy_conn(struct qed_dev
*cdev
,
1284 u32 handle
, u8 abrt_conn
)
1286 struct qed_hash_iscsi_con
*hash_con
;
1288 hash_con
= qed_iscsi_get_hash(cdev
, handle
);
1290 DP_NOTICE(cdev
, "Failed to find connection for handle %d\n",
1295 hash_con
->con
->abortive_dsconnect
= abrt_conn
;
1297 return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev
),
1299 QED_SPQ_MODE_EBLOCK
, NULL
);
1302 static int qed_iscsi_stats(struct qed_dev
*cdev
, struct qed_iscsi_stats
*stats
)
1304 return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev
), stats
);
1307 static const struct qed_iscsi_ops qed_iscsi_ops_pass
= {
1308 .common
= &qed_common_ops_pass
,
1309 .ll2
= &qed_ll2_ops_pass
,
1310 .fill_dev_info
= &qed_fill_iscsi_dev_info
,
1311 .register_ops
= &qed_register_iscsi_ops
,
1312 .start
= &qed_iscsi_start
,
1313 .stop
= &qed_iscsi_stop
,
1314 .acquire_conn
= &qed_iscsi_acquire_conn
,
1315 .release_conn
= &qed_iscsi_release_conn
,
1316 .offload_conn
= &qed_iscsi_offload_conn
,
1317 .update_conn
= &qed_iscsi_update_conn
,
1318 .destroy_conn
= &qed_iscsi_destroy_conn
,
1319 .clear_sq
= &qed_iscsi_clear_conn_sq
,
1320 .get_stats
= &qed_iscsi_stats
,
1323 const struct qed_iscsi_ops
*qed_get_iscsi_ops(void)
1325 return &qed_iscsi_ops_pass
;
1327 EXPORT_SYMBOL(qed_get_iscsi_ops
);
1329 void qed_put_iscsi_ops(void)
1332 EXPORT_SYMBOL(qed_put_iscsi_ops
);