| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Yuval Mintz | 7354 | 97.25% | 12 | 60.00% |
| Tomer Tayar | 163 | 2.16% | 3 | 15.00% |
| Michal Kalderon | 21 | 0.28% | 1 | 5.00% |
| Ariel Elior | 13 | 0.17% | 1 | 5.00% |
| Denis Bolotin | 7 | 0.09% | 1 | 5.00% |
| Arnd Bergmann | 3 | 0.04% | 1 | 5.00% |
| Yue haibing | 1 | 0.01% | 1 | 5.00% |
| Total | 7562 | 20 |
/* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and /or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/types.h> #include <asm/byteorder.h> #include <asm/param.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/etherdevice.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/log2.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/stddef.h> #include <linux/string.h> #include <linux/workqueue.h> #include <linux/errno.h> #include <linux/list.h> #include <linux/spinlock.h> #include <linux/qed/qed_iscsi_if.h> #include "qed.h" #include "qed_cxt.h" #include "qed_dev_api.h" #include "qed_hsi.h" #include "qed_hw.h" #include "qed_int.h" #include "qed_iscsi.h" #include "qed_ll2.h" #include "qed_mcp.h" #include "qed_sp.h" #include "qed_sriov.h" #include "qed_reg_addr.h" struct qed_iscsi_conn { struct list_head list_entry; bool free_on_delete; u16 conn_id; u32 icid; u32 fw_cid; u8 layer_code; u8 offl_flags; u8 connect_mode; u32 initial_ack; dma_addr_t sq_pbl_addr; struct qed_chain r2tq; struct qed_chain xhq; struct qed_chain uhq; struct tcp_upload_params *tcp_upload_params_virt_addr; dma_addr_t tcp_upload_params_phys_addr; struct scsi_terminate_extra_params *queue_cnts_virt_addr; dma_addr_t queue_cnts_phys_addr; dma_addr_t syn_phy_addr; u16 syn_ip_payload_length; u8 local_mac[6]; u8 remote_mac[6]; u16 vlan_id; u16 tcp_flags; u8 ip_version; u32 remote_ip[4]; u32 local_ip[4]; u8 ka_max_probe_cnt; u8 dup_ack_theshold; u32 rcv_next; u32 snd_una; u32 snd_next; u32 snd_max; u32 snd_wnd; u32 rcv_wnd; u32 snd_wl1; u32 cwnd; u32 ss_thresh; u16 srtt; u16 rtt_var; u32 ts_recent; u32 ts_recent_age; u32 total_rt; u32 ka_timeout_delta; u32 rt_timeout_delta; u8 dup_ack_cnt; u8 snd_wnd_probe_cnt; u8 ka_probe_cnt; u8 rt_cnt; u32 flow_label; u32 ka_timeout; u32 ka_interval; u32 max_rt_time; u32 initial_rcv_wnd; u8 ttl; u8 tos_or_tc; u16 remote_port; u16 local_port; u16 mss; u8 snd_wnd_scale; u8 rcv_wnd_scale; u16 da_timeout_value; u8 ack_frequency; u8 update_flag; u8 default_cq; u32 max_seq_size; u32 max_recv_pdu_length; u32 max_send_pdu_length; u32 first_seq_length; u32 exp_stat_sn; u32 stat_sn; u16 physical_q0; u16 physical_q1; u8 abortive_dsconnect; }; static int qed_iscsi_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code, u16 echo, union event_ring_data *data, u8 fw_return_code) { if (p_hwfn->p_iscsi_info->event_cb) { struct qed_iscsi_info *p_iscsi = p_hwfn->p_iscsi_info; return p_iscsi->event_cb(p_iscsi->event_context, fw_event_code, data); } else { DP_NOTICE(p_hwfn, "iSCSI async completion is not set\n"); return -EINVAL; } } static int qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr, void *event_context, iscsi_event_cb_t async_event_cb) { struct iscsi_init_ramrod_params *p_ramrod = NULL; struct scsi_init_func_queues *p_queue = NULL; struct qed_iscsi_pf_params *p_params = NULL; struct iscsi_spe_func_init *p_init = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; int rc = 0; u32 dval; u16 val; u8 i; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = qed_spq_get_cid(p_hwfn); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_INIT_FUNC, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_init; p_init = &p_ramrod->iscsi_init_spe; p_params = &p_hwfn->pf_params.iscsi_pf_params; p_queue = &p_init->q_params; /* Sanity */ if (p_params->num_queues > p_hwfn->hw_info.feat_num[QED_ISCSI_CQ]) { DP_ERR(p_hwfn, "Cannot satisfy CQ amount. Queues requested %d, CQs available %d. Aborting function start\n", p_params->num_queues, p_hwfn->hw_info.feat_num[QED_ISCSI_CQ]); qed_sp_destroy_request(p_hwfn, p_ent); return -EINVAL; } SET_FIELD(p_init->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, ISCSI_SLOW_PATH_LAYER_CODE); p_init->hdr.op_code = ISCSI_RAMROD_CMD_ID_INIT_FUNC; val = p_params->half_way_close_timeout; p_init->half_way_close_timeout = cpu_to_le16(val); p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring; p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring; p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring; p_init->ll2_rx_queue_id = p_hwfn->hw_info.resc_start[QED_LL2_QUEUE] + p_params->ll2_ooo_queue_id; p_init->func_params.log_page_size = p_params->log_page_size; val = p_params->num_tasks; p_init->func_params.num_tasks = cpu_to_le16(val); p_init->debug_mode.flags = p_params->debug_mode; DMA_REGPAIR_LE(p_queue->glbl_q_params_addr, p_params->glbl_q_params_addr); val = p_params->cq_num_entries; p_queue->cq_num_entries = cpu_to_le16(val); val = p_params->cmdq_num_entries; p_queue->cmdq_num_entries = cpu_to_le16(val); p_queue->num_queues = p_params->num_queues; dval = (u8)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS]; p_queue->queue_relative_offset = (u8)dval; p_queue->cq_sb_pi = p_params->gl_rq_pi; p_queue->cmdq_sb_pi = p_params->gl_cmd_pi; for (i = 0; i < p_params->num_queues; i++) { val = qed_get_igu_sb_id(p_hwfn, i); p_queue->cq_cmdq_sb_num_arr[i] = cpu_to_le16(val); } p_queue->bdq_resource_id = (u8)RESC_START(p_hwfn, QED_BDQ); DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_RQ], p_params->bdq_pbl_base_addr[BDQ_ID_RQ]); p_queue->bdq_pbl_num_entries[BDQ_ID_RQ] = p_params->bdq_pbl_num_entries[BDQ_ID_RQ]; val = p_params->bdq_xoff_threshold[BDQ_ID_RQ]; p_queue->bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(val); val = p_params->bdq_xon_threshold[BDQ_ID_RQ]; p_queue->bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(val); DMA_REGPAIR_LE(p_queue->bdq_pbl_base_address[BDQ_ID_IMM_DATA], p_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]); p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA] = p_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]; val = p_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA]; p_queue->bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); val = p_params->bdq_xon_threshold[BDQ_ID_IMM_DATA]; p_queue->bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(val); val = p_params->rq_buffer_size; p_queue->rq_buffer_size = cpu_to_le16(val); if (p_params->is_target) { SET_FIELD(p_queue->q_validity, SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); if (p_queue->bdq_pbl_num_entries[BDQ_ID_IMM_DATA]) SET_FIELD(p_queue->q_validity, SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1); SET_FIELD(p_queue->q_validity, SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1); } else { SET_FIELD(p_queue->q_validity, SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1); } p_ramrod->tcp_init.two_msl_timer = cpu_to_le32(p_params->two_msl_timer); val = p_params->tx_sws_timer; p_ramrod->tcp_init.tx_sws_timer = cpu_to_le16(val); p_ramrod->tcp_init.max_fin_rt = p_params->max_fin_rt; p_hwfn->p_iscsi_info->event_context = event_context; p_hwfn->p_iscsi_info->event_cb = async_event_cb; qed_spq_register_async_cb(p_hwfn, PROTOCOLID_ISCSI, qed_iscsi_async_event); return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_sp_iscsi_conn_offload(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr) { struct iscsi_spe_conn_offload *p_ramrod = NULL; struct tcp_offload_params_opt2 *p_tcp2 = NULL; struct tcp_offload_params *p_tcp = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; dma_addr_t r2tq_pbl_addr; dma_addr_t xhq_pbl_addr; dma_addr_t uhq_pbl_addr; u16 physical_q; int rc = 0; u32 dval; u16 wval; u16 *p; u8 i; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = p_conn->icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_conn_offload; /* Transmission PQ is the first of the PF */ physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); p_conn->physical_q0 = cpu_to_le16(physical_q); p_ramrod->iscsi.physical_q0 = cpu_to_le16(physical_q); /* iSCSI Pure-ACK PQ */ physical_q = qed_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); p_conn->physical_q1 = cpu_to_le16(physical_q); p_ramrod->iscsi.physical_q1 = cpu_to_le16(physical_q); p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_OFFLOAD_CONN; SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); DMA_REGPAIR_LE(p_ramrod->iscsi.sq_pbl_addr, p_conn->sq_pbl_addr); r2tq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->r2tq); DMA_REGPAIR_LE(p_ramrod->iscsi.r2tq_pbl_addr, r2tq_pbl_addr); xhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->xhq); DMA_REGPAIR_LE(p_ramrod->iscsi.xhq_pbl_addr, xhq_pbl_addr); uhq_pbl_addr = qed_chain_get_pbl_phys(&p_conn->uhq); DMA_REGPAIR_LE(p_ramrod->iscsi.uhq_pbl_addr, uhq_pbl_addr); p_ramrod->iscsi.initial_ack = cpu_to_le32(p_conn->initial_ack); p_ramrod->iscsi.flags = p_conn->offl_flags; p_ramrod->iscsi.default_cq = p_conn->default_cq; p_ramrod->iscsi.stat_sn = cpu_to_le32(p_conn->stat_sn); if (!GET_FIELD(p_ramrod->iscsi.flags, ISCSI_CONN_OFFLOAD_PARAMS_TCP_ON_CHIP_1B)) { p_tcp = &p_ramrod->tcp; p = (u16 *)p_conn->local_mac; p_tcp->local_mac_addr_hi = swab16(get_unaligned(p)); p_tcp->local_mac_addr_mid = swab16(get_unaligned(p + 1)); p_tcp->local_mac_addr_lo = swab16(get_unaligned(p + 2)); p = (u16 *)p_conn->remote_mac; p_tcp->remote_mac_addr_hi = swab16(get_unaligned(p)); p_tcp->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); p_tcp->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); p_tcp->vlan_id = cpu_to_le16(p_conn->vlan_id); p_tcp->flags = cpu_to_le16(p_conn->tcp_flags); p_tcp->ip_version = p_conn->ip_version; for (i = 0; i < 4; i++) { dval = p_conn->remote_ip[i]; p_tcp->remote_ip[i] = cpu_to_le32(dval); dval = p_conn->local_ip[i]; p_tcp->local_ip[i] = cpu_to_le32(dval); } p_tcp->ka_max_probe_cnt = p_conn->ka_max_probe_cnt; p_tcp->dup_ack_theshold = p_conn->dup_ack_theshold; p_tcp->rcv_next = cpu_to_le32(p_conn->rcv_next); p_tcp->snd_una = cpu_to_le32(p_conn->snd_una); p_tcp->snd_next = cpu_to_le32(p_conn->snd_next); p_tcp->snd_max = cpu_to_le32(p_conn->snd_max); p_tcp->snd_wnd = cpu_to_le32(p_conn->snd_wnd); p_tcp->rcv_wnd = cpu_to_le32(p_conn->rcv_wnd); p_tcp->snd_wl1 = cpu_to_le32(p_conn->snd_wl1); p_tcp->cwnd = cpu_to_le32(p_conn->cwnd); p_tcp->ss_thresh = cpu_to_le32(p_conn->ss_thresh); p_tcp->srtt = cpu_to_le16(p_conn->srtt); p_tcp->rtt_var = cpu_to_le16(p_conn->rtt_var); p_tcp->ts_recent = cpu_to_le32(p_conn->ts_recent); p_tcp->ts_recent_age = cpu_to_le32(p_conn->ts_recent_age); p_tcp->total_rt = cpu_to_le32(p_conn->total_rt); dval = p_conn->ka_timeout_delta; p_tcp->ka_timeout_delta = cpu_to_le32(dval); dval = p_conn->rt_timeout_delta; p_tcp->rt_timeout_delta = cpu_to_le32(dval); p_tcp->dup_ack_cnt = p_conn->dup_ack_cnt; p_tcp->snd_wnd_probe_cnt = p_conn->snd_wnd_probe_cnt; p_tcp->ka_probe_cnt = p_conn->ka_probe_cnt; p_tcp->rt_cnt = p_conn->rt_cnt; p_tcp->flow_label = cpu_to_le32(p_conn->flow_label); p_tcp->ka_timeout = cpu_to_le32(p_conn->ka_timeout); p_tcp->ka_interval = cpu_to_le32(p_conn->ka_interval); p_tcp->max_rt_time = cpu_to_le32(p_conn->max_rt_time); dval = p_conn->initial_rcv_wnd; p_tcp->initial_rcv_wnd = cpu_to_le32(dval); p_tcp->ttl = p_conn->ttl; p_tcp->tos_or_tc = p_conn->tos_or_tc; p_tcp->remote_port = cpu_to_le16(p_conn->remote_port); p_tcp->local_port = cpu_to_le16(p_conn->local_port); p_tcp->mss = cpu_to_le16(p_conn->mss); p_tcp->snd_wnd_scale = p_conn->snd_wnd_scale; p_tcp->rcv_wnd_scale = p_conn->rcv_wnd_scale; wval = p_conn->da_timeout_value; p_tcp->da_timeout_value = cpu_to_le16(wval); p_tcp->ack_frequency = p_conn->ack_frequency; p_tcp->connect_mode = p_conn->connect_mode; } else { p_tcp2 = &((struct iscsi_spe_conn_offload_option2 *)p_ramrod)->tcp; p = (u16 *)p_conn->local_mac; p_tcp2->local_mac_addr_hi = swab16(get_unaligned(p)); p_tcp2->local_mac_addr_mid = swab16(get_unaligned(p + 1)); p_tcp2->local_mac_addr_lo = swab16(get_unaligned(p + 2)); p = (u16 *)p_conn->remote_mac; p_tcp2->remote_mac_addr_hi = swab16(get_unaligned(p)); p_tcp2->remote_mac_addr_mid = swab16(get_unaligned(p + 1)); p_tcp2->remote_mac_addr_lo = swab16(get_unaligned(p + 2)); p_tcp2->vlan_id = cpu_to_le16(p_conn->vlan_id); p_tcp2->flags = cpu_to_le16(p_conn->tcp_flags); p_tcp2->ip_version = p_conn->ip_version; for (i = 0; i < 4; i++) { dval = p_conn->remote_ip[i]; p_tcp2->remote_ip[i] = cpu_to_le32(dval); dval = p_conn->local_ip[i]; p_tcp2->local_ip[i] = cpu_to_le32(dval); } p_tcp2->flow_label = cpu_to_le32(p_conn->flow_label); p_tcp2->ttl = p_conn->ttl; p_tcp2->tos_or_tc = p_conn->tos_or_tc; p_tcp2->remote_port = cpu_to_le16(p_conn->remote_port); p_tcp2->local_port = cpu_to_le16(p_conn->local_port); p_tcp2->mss = cpu_to_le16(p_conn->mss); p_tcp2->rcv_wnd_scale = p_conn->rcv_wnd_scale; p_tcp2->connect_mode = p_conn->connect_mode; wval = p_conn->syn_ip_payload_length; p_tcp2->syn_ip_payload_length = cpu_to_le16(wval); p_tcp2->syn_phy_addr_lo = DMA_LO_LE(p_conn->syn_phy_addr); p_tcp2->syn_phy_addr_hi = DMA_HI_LE(p_conn->syn_phy_addr); p_tcp2->cwnd = cpu_to_le32(p_conn->cwnd); p_tcp2->ka_max_probe_cnt = p_conn->ka_probe_cnt; p_tcp2->ka_timeout = cpu_to_le32(p_conn->ka_timeout); p_tcp2->max_rt_time = cpu_to_le32(p_conn->max_rt_time); p_tcp2->ka_interval = cpu_to_le32(p_conn->ka_interval); } return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_sp_iscsi_conn_update(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr) { struct iscsi_conn_update_ramrod_params *p_ramrod = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; int rc = -EINVAL; u32 dval; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = p_conn->icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_UPDATE_CONN, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_conn_update; p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_UPDATE_CONN; SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); p_ramrod->flags = p_conn->update_flag; p_ramrod->max_seq_size = cpu_to_le32(p_conn->max_seq_size); dval = p_conn->max_recv_pdu_length; p_ramrod->max_recv_pdu_length = cpu_to_le32(dval); dval = p_conn->max_send_pdu_length; p_ramrod->max_send_pdu_length = cpu_to_le32(dval); dval = p_conn->first_seq_length; p_ramrod->first_seq_length = cpu_to_le32(dval); p_ramrod->exp_stat_sn = cpu_to_le32(p_conn->exp_stat_sn); return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_sp_iscsi_mac_update(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr) { struct iscsi_spe_conn_mac_update *p_ramrod = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; int rc = -EINVAL; u8 ucval; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = p_conn->icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_MAC_UPDATE, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_conn_mac_update; p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_MAC_UPDATE; SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); ucval = p_conn->remote_mac[1]; ((u8 *)(&p_ramrod->remote_mac_addr_hi))[0] = ucval; ucval = p_conn->remote_mac[0]; ((u8 *)(&p_ramrod->remote_mac_addr_hi))[1] = ucval; ucval = p_conn->remote_mac[3]; ((u8 *)(&p_ramrod->remote_mac_addr_mid))[0] = ucval; ucval = p_conn->remote_mac[2]; ((u8 *)(&p_ramrod->remote_mac_addr_mid))[1] = ucval; ucval = p_conn->remote_mac[5]; ((u8 *)(&p_ramrod->remote_mac_addr_lo))[0] = ucval; ucval = p_conn->remote_mac[4]; ((u8 *)(&p_ramrod->remote_mac_addr_lo))[1] = ucval; return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_sp_iscsi_conn_terminate(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr) { struct iscsi_spe_conn_termination *p_ramrod = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; int rc = -EINVAL; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = p_conn->icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_TERMINATION_CONN, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_conn_terminate; p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_TERMINATION_CONN; SET_FIELD(p_ramrod->hdr.flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); p_ramrod->fw_cid = cpu_to_le32(p_conn->icid); p_ramrod->abortive = p_conn->abortive_dsconnect; DMA_REGPAIR_LE(p_ramrod->query_params_addr, p_conn->tcp_upload_params_phys_addr); DMA_REGPAIR_LE(p_ramrod->queue_cnts_addr, p_conn->queue_cnts_phys_addr); return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_sp_iscsi_conn_clear_sq(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr) { struct iscsi_slow_path_hdr *p_ramrod = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; int rc = -EINVAL; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = p_conn->icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_CLEAR_SQ, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_empty; p_ramrod->op_code = ISCSI_RAMROD_CMD_ID_CLEAR_SQ; SET_FIELD(p_ramrod->flags, ISCSI_SLOW_PATH_HDR_LAYER_CODE, p_conn->layer_code); return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_sp_iscsi_func_stop(struct qed_hwfn *p_hwfn, enum spq_mode comp_mode, struct qed_spq_comp_cb *p_comp_addr) { struct iscsi_spe_func_dstry *p_ramrod = NULL; struct qed_spq_entry *p_ent = NULL; struct qed_sp_init_data init_data; int rc = 0; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = qed_spq_get_cid(p_hwfn); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = comp_mode; init_data.p_comp_data = p_comp_addr; rc = qed_sp_init_request(p_hwfn, &p_ent, ISCSI_RAMROD_CMD_ID_DESTROY_FUNC, PROTOCOLID_ISCSI, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.iscsi_destroy; p_ramrod->hdr.op_code = ISCSI_RAMROD_CMD_ID_DESTROY_FUNC; rc = qed_spq_post(p_hwfn, p_ent, NULL); qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_ISCSI); return rc; } static void __iomem *qed_iscsi_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid) { return (u8 __iomem *)p_hwfn->doorbells + qed_db_addr(cid, DQ_DEMS_LEGACY); } static void __iomem *qed_iscsi_get_primary_bdq_prod(struct qed_hwfn *p_hwfn, u8 bdq_id) { if (RESC_NUM(p_hwfn, QED_BDQ)) { return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM + MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn, QED_BDQ), bdq_id); } else { DP_NOTICE(p_hwfn, "BDQ is not allocated!\n"); return NULL; } } static void __iomem *qed_iscsi_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn, u8 bdq_id) { if (RESC_NUM(p_hwfn, QED_BDQ)) { return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM + TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(RESC_START(p_hwfn, QED_BDQ), bdq_id); } else { DP_NOTICE(p_hwfn, "BDQ is not allocated!\n"); return NULL; } } static int qed_iscsi_setup_connection(struct qed_iscsi_conn *p_conn) { if (!p_conn->queue_cnts_virt_addr) goto nomem; memset(p_conn->queue_cnts_virt_addr, 0, sizeof(*p_conn->queue_cnts_virt_addr)); if (!p_conn->tcp_upload_params_virt_addr) goto nomem; memset(p_conn->tcp_upload_params_virt_addr, 0, sizeof(*p_conn->tcp_upload_params_virt_addr)); if (!p_conn->r2tq.p_virt_addr) goto nomem; qed_chain_pbl_zero_mem(&p_conn->r2tq); if (!p_conn->uhq.p_virt_addr) goto nomem; qed_chain_pbl_zero_mem(&p_conn->uhq); if (!p_conn->xhq.p_virt_addr) goto nomem; qed_chain_pbl_zero_mem(&p_conn->xhq); return 0; nomem: return -ENOMEM; } static int qed_iscsi_allocate_connection(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn **p_out_conn) { u16 uhq_num_elements = 0, xhq_num_elements = 0, r2tq_num_elements = 0; struct scsi_terminate_extra_params *p_q_cnts = NULL; struct qed_iscsi_pf_params *p_params = NULL; struct tcp_upload_params *p_tcp = NULL; struct qed_iscsi_conn *p_conn = NULL; int rc = 0; /* Try finding a free connection that can be used */ spin_lock_bh(&p_hwfn->p_iscsi_info->lock); if (!list_empty(&p_hwfn->p_iscsi_info->free_list)) p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, struct qed_iscsi_conn, list_entry); if (p_conn) { list_del(&p_conn->list_entry); spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); *p_out_conn = p_conn; return 0; } spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); /* Need to allocate a new connection */ p_params = &p_hwfn->pf_params.iscsi_pf_params; p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL); if (!p_conn) return -ENOMEM; p_q_cnts = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_q_cnts), &p_conn->queue_cnts_phys_addr, GFP_KERNEL); if (!p_q_cnts) goto nomem_queue_cnts_param; p_conn->queue_cnts_virt_addr = p_q_cnts; p_tcp = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_tcp), &p_conn->tcp_upload_params_phys_addr, GFP_KERNEL); if (!p_tcp) goto nomem_upload_param; p_conn->tcp_upload_params_virt_addr = p_tcp; r2tq_num_elements = p_params->num_r2tq_pages_in_ring * QED_CHAIN_PAGE_SIZE / 0x80; rc = qed_chain_alloc(p_hwfn->cdev, QED_CHAIN_USE_TO_CONSUME_PRODUCE, QED_CHAIN_MODE_PBL, QED_CHAIN_CNT_TYPE_U16, r2tq_num_elements, 0x80, &p_conn->r2tq, NULL); if (rc) goto nomem_r2tq; uhq_num_elements = p_params->num_uhq_pages_in_ring * QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe); rc = qed_chain_alloc(p_hwfn->cdev, QED_CHAIN_USE_TO_CONSUME_PRODUCE, QED_CHAIN_MODE_PBL, QED_CHAIN_CNT_TYPE_U16, uhq_num_elements, sizeof(struct iscsi_uhqe), &p_conn->uhq, NULL); if (rc) goto nomem_uhq; xhq_num_elements = uhq_num_elements; rc = qed_chain_alloc(p_hwfn->cdev, QED_CHAIN_USE_TO_CONSUME_PRODUCE, QED_CHAIN_MODE_PBL, QED_CHAIN_CNT_TYPE_U16, xhq_num_elements, sizeof(struct iscsi_xhqe), &p_conn->xhq, NULL); if (rc) goto nomem; p_conn->free_on_delete = true; *p_out_conn = p_conn; return 0; nomem: qed_chain_free(p_hwfn->cdev, &p_conn->uhq); nomem_uhq: qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); nomem_r2tq: dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct tcp_upload_params), p_conn->tcp_upload_params_virt_addr, p_conn->tcp_upload_params_phys_addr); nomem_upload_param: dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct scsi_terminate_extra_params), p_conn->queue_cnts_virt_addr, p_conn->queue_cnts_phys_addr); nomem_queue_cnts_param: kfree(p_conn); return -ENOMEM; } static int qed_iscsi_acquire_connection(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_in_conn, struct qed_iscsi_conn **p_out_conn) { struct qed_iscsi_conn *p_conn = NULL; int rc = 0; u32 icid; spin_lock_bh(&p_hwfn->p_iscsi_info->lock); rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_ISCSI, &icid); spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); if (rc) return rc; /* Use input connection or allocate a new one */ if (p_in_conn) p_conn = p_in_conn; else rc = qed_iscsi_allocate_connection(p_hwfn, &p_conn); if (!rc) rc = qed_iscsi_setup_connection(p_conn); if (rc) { spin_lock_bh(&p_hwfn->p_iscsi_info->lock); qed_cxt_release_cid(p_hwfn, icid); spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); return rc; } p_conn->icid = icid; p_conn->conn_id = (u16)icid; p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid; *p_out_conn = p_conn; return rc; } static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn) { spin_lock_bh(&p_hwfn->p_iscsi_info->lock); list_add_tail(&p_conn->list_entry, &p_hwfn->p_iscsi_info->free_list); qed_cxt_release_cid(p_hwfn, p_conn->icid); spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); } static void qed_iscsi_free_connection(struct qed_hwfn *p_hwfn, struct qed_iscsi_conn *p_conn) { qed_chain_free(p_hwfn->cdev, &p_conn->xhq); qed_chain_free(p_hwfn->cdev, &p_conn->uhq); qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct tcp_upload_params), p_conn->tcp_upload_params_virt_addr, p_conn->tcp_upload_params_phys_addr); dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct scsi_terminate_extra_params), p_conn->queue_cnts_virt_addr, p_conn->queue_cnts_phys_addr); kfree(p_conn); } int qed_iscsi_alloc(struct qed_hwfn *p_hwfn) { struct qed_iscsi_info *p_iscsi_info; p_iscsi_info = kzalloc(sizeof(*p_iscsi_info), GFP_KERNEL); if (!p_iscsi_info) return -ENOMEM; INIT_LIST_HEAD(&p_iscsi_info->free_list); p_hwfn->p_iscsi_info = p_iscsi_info; return 0; } void qed_iscsi_setup(struct qed_hwfn *p_hwfn) { spin_lock_init(&p_hwfn->p_iscsi_info->lock); } void qed_iscsi_free(struct qed_hwfn *p_hwfn) { struct qed_iscsi_conn *p_conn = NULL; if (!p_hwfn->p_iscsi_info) return; while (!list_empty(&p_hwfn->p_iscsi_info->free_list)) { p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, struct qed_iscsi_conn, list_entry); if (p_conn) { list_del(&p_conn->list_entry); qed_iscsi_free_connection(p_hwfn, p_conn); } } kfree(p_hwfn->p_iscsi_info); p_hwfn->p_iscsi_info = NULL; } static void _qed_iscsi_get_tstats(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_iscsi_stats *p_stats) { struct tstorm_iscsi_stats_drv tstats; u32 tstats_addr; memset(&tstats, 0, sizeof(tstats)); tstats_addr = BAR0_MAP_REG_TSDM_RAM + TSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats)); p_stats->iscsi_rx_bytes_cnt = HILO_64_REGPAIR(tstats.iscsi_rx_bytes_cnt); p_stats->iscsi_rx_packet_cnt = HILO_64_REGPAIR(tstats.iscsi_rx_packet_cnt); p_stats->iscsi_rx_new_ooo_isle_events_cnt = HILO_64_REGPAIR(tstats.iscsi_rx_new_ooo_isle_events_cnt); p_stats->iscsi_cmdq_threshold_cnt = le32_to_cpu(tstats.iscsi_cmdq_threshold_cnt); p_stats->iscsi_rq_threshold_cnt = le32_to_cpu(tstats.iscsi_rq_threshold_cnt); p_stats->iscsi_immq_threshold_cnt = le32_to_cpu(tstats.iscsi_immq_threshold_cnt); } static void _qed_iscsi_get_mstats(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_iscsi_stats *p_stats) { struct mstorm_iscsi_stats_drv mstats; u32 mstats_addr; memset(&mstats, 0, sizeof(mstats)); mstats_addr = BAR0_MAP_REG_MSDM_RAM + MSTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); qed_memcpy_from(p_hwfn, p_ptt, &mstats, mstats_addr, sizeof(mstats)); p_stats->iscsi_rx_dropped_pdus_task_not_valid = HILO_64_REGPAIR(mstats.iscsi_rx_dropped_pdus_task_not_valid); } static void _qed_iscsi_get_ustats(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_iscsi_stats *p_stats) { struct ustorm_iscsi_stats_drv ustats; u32 ustats_addr; memset(&ustats, 0, sizeof(ustats)); ustats_addr = BAR0_MAP_REG_USDM_RAM + USTORM_ISCSI_RX_STATS_OFFSET(p_hwfn->rel_pf_id); qed_memcpy_from(p_hwfn, p_ptt, &ustats, ustats_addr, sizeof(ustats)); p_stats->iscsi_rx_data_pdu_cnt = HILO_64_REGPAIR(ustats.iscsi_rx_data_pdu_cnt); p_stats->iscsi_rx_r2t_pdu_cnt = HILO_64_REGPAIR(ustats.iscsi_rx_r2t_pdu_cnt); p_stats->iscsi_rx_total_pdu_cnt = HILO_64_REGPAIR(ustats.iscsi_rx_total_pdu_cnt); } static void _qed_iscsi_get_xstats(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_iscsi_stats *p_stats) { struct xstorm_iscsi_stats_drv xstats; u32 xstats_addr; memset(&xstats, 0, sizeof(xstats)); xstats_addr = BAR0_MAP_REG_XSDM_RAM + XSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); qed_memcpy_from(p_hwfn, p_ptt, &xstats, xstats_addr, sizeof(xstats)); p_stats->iscsi_tx_go_to_slow_start_event_cnt = HILO_64_REGPAIR(xstats.iscsi_tx_go_to_slow_start_event_cnt); p_stats->iscsi_tx_fast_retransmit_event_cnt = HILO_64_REGPAIR(xstats.iscsi_tx_fast_retransmit_event_cnt); } static void _qed_iscsi_get_ystats(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_iscsi_stats *p_stats) { struct ystorm_iscsi_stats_drv ystats; u32 ystats_addr; memset(&ystats, 0, sizeof(ystats)); ystats_addr = BAR0_MAP_REG_YSDM_RAM + YSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); qed_memcpy_from(p_hwfn, p_ptt, &ystats, ystats_addr, sizeof(ystats)); p_stats->iscsi_tx_data_pdu_cnt = HILO_64_REGPAIR(ystats.iscsi_tx_data_pdu_cnt); p_stats->iscsi_tx_r2t_pdu_cnt = HILO_64_REGPAIR(ystats.iscsi_tx_r2t_pdu_cnt); p_stats->iscsi_tx_total_pdu_cnt = HILO_64_REGPAIR(ystats.iscsi_tx_total_pdu_cnt); } static void _qed_iscsi_get_pstats(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_iscsi_stats *p_stats) { struct pstorm_iscsi_stats_drv pstats; u32 pstats_addr; memset(&pstats, 0, sizeof(pstats)); pstats_addr = BAR0_MAP_REG_PSDM_RAM + PSTORM_ISCSI_TX_STATS_OFFSET(p_hwfn->rel_pf_id); qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats)); p_stats->iscsi_tx_bytes_cnt = HILO_64_REGPAIR(pstats.iscsi_tx_bytes_cnt); p_stats->iscsi_tx_packet_cnt = HILO_64_REGPAIR(pstats.iscsi_tx_packet_cnt); } static int qed_iscsi_get_stats(struct qed_hwfn *p_hwfn, struct qed_iscsi_stats *stats) { struct qed_ptt *p_ptt; memset(stats, 0, sizeof(*stats)); p_ptt = qed_ptt_acquire(p_hwfn); if (!p_ptt) { DP_ERR(p_hwfn, "Failed to acquire ptt\n"); return -EAGAIN; } _qed_iscsi_get_tstats(p_hwfn, p_ptt, stats); _qed_iscsi_get_mstats(p_hwfn, p_ptt, stats); _qed_iscsi_get_ustats(p_hwfn, p_ptt, stats); _qed_iscsi_get_xstats(p_hwfn, p_ptt, stats); _qed_iscsi_get_ystats(p_hwfn, p_ptt, stats); _qed_iscsi_get_pstats(p_hwfn, p_ptt, stats); qed_ptt_release(p_hwfn, p_ptt); return 0; } struct qed_hash_iscsi_con { struct hlist_node node; struct qed_iscsi_conn *con; }; static int qed_fill_iscsi_dev_info(struct qed_dev *cdev, struct qed_dev_iscsi_info *info) { struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); int rc; memset(info, 0, sizeof(*info)); rc = qed_fill_dev_info(cdev, &info->common); info->primary_dbq_rq_addr = qed_iscsi_get_primary_bdq_prod(hwfn, BDQ_ID_RQ); info->secondary_bdq_rq_addr = qed_iscsi_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ); info->num_cqs = FEAT_NUM(hwfn, QED_ISCSI_CQ); return rc; } static void qed_register_iscsi_ops(struct qed_dev *cdev, struct qed_iscsi_cb_ops *ops, void *cookie) { cdev->protocol_ops.iscsi = ops; cdev->ops_cookie = cookie; } static struct qed_hash_iscsi_con *qed_iscsi_get_hash(struct qed_dev *cdev, u32 handle) { struct qed_hash_iscsi_con *hash_con = NULL; if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) return NULL; hash_for_each_possible(cdev->connections, hash_con, node, handle) { if (hash_con->con->icid == handle) break; } if (!hash_con || (hash_con->con->icid != handle)) return NULL; return hash_con; } static int qed_iscsi_stop(struct qed_dev *cdev) { int rc; if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) { DP_NOTICE(cdev, "iscsi already stopped\n"); return 0; } if (!hash_empty(cdev->connections)) { DP_NOTICE(cdev, "Can't stop iscsi - not all connections were returned\n"); return -EINVAL; } /* Stop the iscsi */ rc = qed_sp_iscsi_func_stop(QED_LEADING_HWFN(cdev), QED_SPQ_MODE_EBLOCK, NULL); cdev->flags &= ~QED_FLAG_STORAGE_STARTED; return rc; } static int qed_iscsi_start(struct qed_dev *cdev, struct qed_iscsi_tid *tasks, void *event_context, iscsi_event_cb_t async_event_cb) { int rc; struct qed_tid_mem *tid_info; if (cdev->flags & QED_FLAG_STORAGE_STARTED) { DP_NOTICE(cdev, "iscsi already started;\n"); return 0; } rc = qed_sp_iscsi_func_start(QED_LEADING_HWFN(cdev), QED_SPQ_MODE_EBLOCK, NULL, event_context, async_event_cb); if (rc) { DP_NOTICE(cdev, "Failed to start iscsi\n"); return rc; } cdev->flags |= QED_FLAG_STORAGE_STARTED; hash_init(cdev->connections); if (!tasks) return 0; tid_info = kzalloc(sizeof(*tid_info), GFP_KERNEL); if (!tid_info) { qed_iscsi_stop(cdev); return -ENOMEM; } rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info); if (rc) { DP_NOTICE(cdev, "Failed to gather task information\n"); qed_iscsi_stop(cdev); kfree(tid_info); return rc; } /* Fill task information */ tasks->size = tid_info->tid_size; tasks->num_tids_per_block = tid_info->num_tids_per_block; memcpy(tasks->blocks, tid_info->blocks, MAX_TID_BLOCKS_ISCSI * sizeof(u8 *)); kfree(tid_info); return 0; } static int qed_iscsi_acquire_conn(struct qed_dev *cdev, u32 *handle, u32 *fw_cid, void __iomem **p_doorbell) { struct qed_hash_iscsi_con *hash_con; int rc; /* Allocate a hashed connection */ hash_con = kzalloc(sizeof(*hash_con), GFP_ATOMIC); if (!hash_con) return -ENOMEM; /* Acquire the connection */ rc = qed_iscsi_acquire_connection(QED_LEADING_HWFN(cdev), NULL, &hash_con->con); if (rc) { DP_NOTICE(cdev, "Failed to acquire Connection\n"); kfree(hash_con); return rc; } /* Added the connection to hash table */ *handle = hash_con->con->icid; *fw_cid = hash_con->con->fw_cid; hash_add(cdev->connections, &hash_con->node, *handle); if (p_doorbell) *p_doorbell = qed_iscsi_get_db_addr(QED_LEADING_HWFN(cdev), *handle); return 0; } static int qed_iscsi_release_conn(struct qed_dev *cdev, u32 handle) { struct qed_hash_iscsi_con *hash_con; hash_con = qed_iscsi_get_hash(cdev, handle); if (!hash_con) { DP_NOTICE(cdev, "Failed to find connection for handle %d\n", handle); return -EINVAL; } hlist_del(&hash_con->node); qed_iscsi_release_connection(QED_LEADING_HWFN(cdev), hash_con->con); kfree(hash_con); return 0; } static int qed_iscsi_offload_conn(struct qed_dev *cdev, u32 handle, struct qed_iscsi_params_offload *conn_info) { struct qed_hash_iscsi_con *hash_con; struct qed_iscsi_conn *con; hash_con = qed_iscsi_get_hash(cdev, handle); if (!hash_con) { DP_NOTICE(cdev, "Failed to find connection for handle %d\n", handle); return -EINVAL; } /* Update the connection with information from the params */ con = hash_con->con; ether_addr_copy(con->local_mac, conn_info->src.mac); ether_addr_copy(con->remote_mac, conn_info->dst.mac); memcpy(con->local_ip, conn_info->src.ip, sizeof(con->local_ip)); memcpy(con->remote_ip, conn_info->dst.ip, sizeof(con->remote_ip)); con->local_port = conn_info->src.port; con->remote_port = conn_info->dst.port; con->layer_code = conn_info->layer_code; con->sq_pbl_addr = conn_info->sq_pbl_addr; con->initial_ack = conn_info->initial_ack; con->vlan_id = conn_info->vlan_id; con->tcp_flags = conn_info->tcp_flags; con->ip_version = conn_info->ip_version; con->default_cq = conn_info->default_cq; con->ka_max_probe_cnt = conn_info->ka_max_probe_cnt; con->dup_ack_theshold = conn_info->dup_ack_theshold; con->rcv_next = conn_info->rcv_next; con->snd_una = conn_info->snd_una; con->snd_next = conn_info->snd_next; con->snd_max = conn_info->snd_max; con->snd_wnd = conn_info->snd_wnd; con->rcv_wnd = conn_info->rcv_wnd; con->snd_wl1 = conn_info->snd_wl1; con->cwnd = conn_info->cwnd; con->ss_thresh = conn_info->ss_thresh; con->srtt = conn_info->srtt; con->rtt_var = conn_info->rtt_var; con->ts_recent = conn_info->ts_recent; con->ts_recent_age = conn_info->ts_recent_age; con->total_rt = conn_info->total_rt; con->ka_timeout_delta = conn_info->ka_timeout_delta; con->rt_timeout_delta = conn_info->rt_timeout_delta; con->dup_ack_cnt = conn_info->dup_ack_cnt; con->snd_wnd_probe_cnt = conn_info->snd_wnd_probe_cnt; con->ka_probe_cnt = conn_info->ka_probe_cnt; con->rt_cnt = conn_info->rt_cnt; con->flow_label = conn_info->flow_label; con->ka_timeout = conn_info->ka_timeout; con->ka_interval = conn_info->ka_interval; con->max_rt_time = conn_info->max_rt_time; con->initial_rcv_wnd = conn_info->initial_rcv_wnd; con->ttl = conn_info->ttl; con->tos_or_tc = conn_info->tos_or_tc; con->remote_port = conn_info->remote_port; con->local_port = conn_info->local_port; con->mss = conn_info->mss; con->snd_wnd_scale = conn_info->snd_wnd_scale; con->rcv_wnd_scale = conn_info->rcv_wnd_scale; con->da_timeout_value = conn_info->da_timeout_value; con->ack_frequency = conn_info->ack_frequency; /* Set default values on other connection fields */ con->offl_flags = 0x1; return qed_sp_iscsi_conn_offload(QED_LEADING_HWFN(cdev), con, QED_SPQ_MODE_EBLOCK, NULL); } static int qed_iscsi_update_conn(struct qed_dev *cdev, u32 handle, struct qed_iscsi_params_update *conn_info) { struct qed_hash_iscsi_con *hash_con; struct qed_iscsi_conn *con; hash_con = qed_iscsi_get_hash(cdev, handle); if (!hash_con) { DP_NOTICE(cdev, "Failed to find connection for handle %d\n", handle); return -EINVAL; } /* Update the connection with information from the params */ con = hash_con->con; con->update_flag = conn_info->update_flag; con->max_seq_size = conn_info->max_seq_size; con->max_recv_pdu_length = conn_info->max_recv_pdu_length; con->max_send_pdu_length = conn_info->max_send_pdu_length; con->first_seq_length = conn_info->first_seq_length; con->exp_stat_sn = conn_info->exp_stat_sn; return qed_sp_iscsi_conn_update(QED_LEADING_HWFN(cdev), con, QED_SPQ_MODE_EBLOCK, NULL); } static int qed_iscsi_clear_conn_sq(struct qed_dev *cdev, u32 handle) { struct qed_hash_iscsi_con *hash_con; hash_con = qed_iscsi_get_hash(cdev, handle); if (!hash_con) { DP_NOTICE(cdev, "Failed to find connection for handle %d\n", handle); return -EINVAL; } return qed_sp_iscsi_conn_clear_sq(QED_LEADING_HWFN(cdev), hash_con->con, QED_SPQ_MODE_EBLOCK, NULL); } static int qed_iscsi_destroy_conn(struct qed_dev *cdev, u32 handle, u8 abrt_conn) { struct qed_hash_iscsi_con *hash_con; hash_con = qed_iscsi_get_hash(cdev, handle); if (!hash_con) { DP_NOTICE(cdev, "Failed to find connection for handle %d\n", handle); return -EINVAL; } hash_con->con->abortive_dsconnect = abrt_conn; return qed_sp_iscsi_conn_terminate(QED_LEADING_HWFN(cdev), hash_con->con, QED_SPQ_MODE_EBLOCK, NULL); } static int qed_iscsi_stats(struct qed_dev *cdev, struct qed_iscsi_stats *stats) { return qed_iscsi_get_stats(QED_LEADING_HWFN(cdev), stats); } static int qed_iscsi_change_mac(struct qed_dev *cdev, u32 handle, const u8 *mac) { struct qed_hash_iscsi_con *hash_con; hash_con = qed_iscsi_get_hash(cdev, handle); if (!hash_con) { DP_NOTICE(cdev, "Failed to find connection for handle %d\n", handle); return -EINVAL; } return qed_sp_iscsi_mac_update(QED_LEADING_HWFN(cdev), hash_con->con, QED_SPQ_MODE_EBLOCK, NULL); } void qed_get_protocol_stats_iscsi(struct qed_dev *cdev, struct qed_mcp_iscsi_stats *stats) { struct qed_iscsi_stats proto_stats; /* Retrieve FW statistics */ memset(&proto_stats, 0, sizeof(proto_stats)); if (qed_iscsi_stats(cdev, &proto_stats)) { DP_VERBOSE(cdev, QED_MSG_STORAGE, "Failed to collect ISCSI statistics\n"); return; } /* Translate FW statistics into struct */ stats->rx_pdus = proto_stats.iscsi_rx_total_pdu_cnt; stats->tx_pdus = proto_stats.iscsi_tx_total_pdu_cnt; stats->rx_bytes = proto_stats.iscsi_rx_bytes_cnt; stats->tx_bytes = proto_stats.iscsi_tx_bytes_cnt; } static const struct qed_iscsi_ops qed_iscsi_ops_pass = { .common = &qed_common_ops_pass, .ll2 = &qed_ll2_ops_pass, .fill_dev_info = &qed_fill_iscsi_dev_info, .register_ops = &qed_register_iscsi_ops, .start = &qed_iscsi_start, .stop = &qed_iscsi_stop, .acquire_conn = &qed_iscsi_acquire_conn, .release_conn = &qed_iscsi_release_conn, .offload_conn = &qed_iscsi_offload_conn, .update_conn = &qed_iscsi_update_conn, .destroy_conn = &qed_iscsi_destroy_conn, .clear_sq = &qed_iscsi_clear_conn_sq, .get_stats = &qed_iscsi_stats, .change_mac = &qed_iscsi_change_mac, }; const struct qed_iscsi_ops *qed_get_iscsi_ops(void) { return &qed_iscsi_ops_pass; } EXPORT_SYMBOL(qed_get_iscsi_ops); void qed_put_iscsi_ops(void) { } EXPORT_SYMBOL(qed_put_iscsi_ops);
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1