| // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) |
| /* QLogic qed NIC Driver |
| * Copyright (c) 2015-2017 QLogic Corporation |
| * Copyright (c) 2019-2020 Marvell International Ltd. |
| */ |
| |
| #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, |
| __le16 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_TCP_ULP, &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; |
| } |
| |
| 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_RAM_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_TCP_ULP, |
| 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; |
| __le16 tmp; |
| 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_TCP_ULP, &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 = 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 = physical_q; |
| p_ramrod->iscsi.physical_q1 = cpu_to_le16(physical_q); |
| |
| p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); |
| |
| 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; |
| tmp = cpu_to_le16(get_unaligned_be16(p)); |
| p_tcp->local_mac_addr_hi = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 1)); |
| p_tcp->local_mac_addr_mid = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 2)); |
| p_tcp->local_mac_addr_lo = tmp; |
| |
| p = (u16 *)p_conn->remote_mac; |
| tmp = cpu_to_le16(get_unaligned_be16(p)); |
| p_tcp->remote_mac_addr_hi = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 1)); |
| p_tcp->remote_mac_addr_mid = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 2)); |
| p_tcp->remote_mac_addr_lo = tmp; |
| |
| 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; |
| tmp = cpu_to_le16(get_unaligned_be16(p)); |
| p_tcp2->local_mac_addr_hi = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 1)); |
| p_tcp2->local_mac_addr_mid = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 2)); |
| p_tcp2->local_mac_addr_lo = tmp; |
| |
| p = (u16 *)p_conn->remote_mac; |
| tmp = cpu_to_le16(get_unaligned_be16(p)); |
| p_tcp2->remote_mac_addr_hi = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 1)); |
| p_tcp2->remote_mac_addr_mid = tmp; |
| tmp = cpu_to_le16(get_unaligned_be16(p + 2)); |
| p_tcp2->remote_mac_addr_lo = tmp; |
| |
| 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; |
| 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_TCP_ULP, &init_data); |
| if (rc) |
| return rc; |
| |
| p_ramrod = &p_ent->ramrod.iscsi_conn_update; |
| |
| p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); |
| 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_TCP_ULP, &init_data); |
| if (rc) |
| return rc; |
| |
| p_ramrod = &p_ent->ramrod.iscsi_conn_mac_update; |
| |
| p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); |
| 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_TCP_ULP, &init_data); |
| if (rc) |
| return rc; |
| |
| p_ramrod = &p_ent->ramrod.iscsi_conn_terminate; |
| |
| p_ramrod->conn_id = cpu_to_le16(p_conn->conn_id); |
| 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 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_TCP_ULP, &init_data); |
| if (rc) |
| return rc; |
| |
| 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 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_TCP_ULP, &init_data); |
| if (rc) |
| return rc; |
| |
| rc = qed_spq_post(p_hwfn, p_ent, NULL); |
| |
| qed_spq_unregister_async_cb(p_hwfn, PROTOCOLID_TCP_ULP); |
| 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) |
| { |
| struct scsi_terminate_extra_params *p_q_cnts = NULL; |
| struct qed_iscsi_pf_params *p_params = NULL; |
| struct qed_chain_init_params params = { |
| .mode = QED_CHAIN_MODE_PBL, |
| .intended_use = QED_CHAIN_USE_TO_CONSUME_PRODUCE, |
| .cnt_type = QED_CHAIN_CNT_TYPE_U16, |
| }; |
| 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; |
| |
| params.num_elems = p_params->num_r2tq_pages_in_ring * |
| QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_wqe); |
| params.elem_size = sizeof(struct iscsi_wqe); |
| |
| rc = qed_chain_alloc(p_hwfn->cdev, &p_conn->r2tq, ¶ms); |
| if (rc) |
| goto nomem_r2tq; |
| |
| params.num_elems = p_params->num_uhq_pages_in_ring * |
| QED_CHAIN_PAGE_SIZE / sizeof(struct iscsi_uhqe); |
| params.elem_size = sizeof(struct iscsi_uhqe); |
| |
| rc = qed_chain_alloc(p_hwfn->cdev, &p_conn->uhq, ¶ms); |
| if (rc) |
| goto nomem_uhq; |
| |
| params.elem_size = sizeof(struct iscsi_xhqe); |
| |
| rc = qed_chain_alloc(p_hwfn->cdev, &p_conn->xhq, ¶ms); |
| 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_TCP_ULP, &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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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_AFFIN_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); |