diff options
author | Joe Carnuccio <joe.carnuccio@cavium.com> | 2020-02-12 13:44:24 -0800 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-02-24 12:34:28 -0500 |
commit | 576bfde80b28232a1dfcf0466986ed2934146d0a (patch) | |
tree | eab749f4682ccd3f487a1446324ae8ac5101be8d /drivers/scsi/qla2xxx | |
parent | 09e382bc3dd946cfee74044d18d1886567874300 (diff) | |
download | linux-576bfde80b28232a1dfcf0466986ed2934146d0a.tar.bz2 |
scsi: qla2xxx: Add deferred queue for processing ABTS and RDP
This patch adds deferred queue for processing aborts and RDP in the driver.
Link: https://lore.kernel.org/r/20200212214436.25532-14-hmadhani@marvell.com
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 15 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_fw.h | 91 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_gbl.h | 2 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 154 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_mid.c | 7 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 62 |
6 files changed, 304 insertions, 27 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 4275d76ff16b..17367639953c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -4474,6 +4474,15 @@ struct active_regions { #define QLA_SET_DATA_RATE_NOLR 1 #define QLA_SET_DATA_RATE_LR 2 /* Set speed and initiate LR */ +struct purex_item { + struct list_head list; + struct scsi_qla_host *vha; + void (*process_item)(struct scsi_qla_host *vha, void *pkt); + struct { + uint8_t iocb[64]; + } iocb; +}; + /* * Qlogic scsi host structure */ @@ -4664,7 +4673,11 @@ typedef struct scsi_qla_host { uint16_t ql2xexchoffld; uint16_t ql2xiniexchg; - void *purex_data; + struct purex_list { + struct list_head head; + spinlock_t lock; + } purex_list; + struct name_list_extended gnl; /* Count of active session/fcport */ int fcport_count; diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h index f7a40dcda7ce..8af5bc4e2cc6 100644 --- a/drivers/scsi/qla2xxx/qla_fw.h +++ b/drivers/scsi/qla2xxx/qla_fw.h @@ -727,7 +727,7 @@ struct ct_entry_24xx { * ISP queue - PUREX IOCB entry structure definition */ #define PUREX_IOCB_TYPE 0x51 /* CT Pass Through IOCB entry */ -typedef struct purex_entry_24xx { +struct purex_entry_24xx { uint8_t entry_type; /* Entry type. */ uint8_t entry_count; /* Entry count. */ uint8_t sys_define; /* System defined. */ @@ -763,9 +763,7 @@ typedef struct purex_entry_24xx { uint32_t param; uint8_t els_frame_payload[20]; -} purex_entry_24xx_t; - -#define PUREX_ENTRY_SIZE (sizeof(purex_entry_24xx_t)) +}; /* * ISP queue - ELS Pass-Through entry structure definition. @@ -1000,6 +998,91 @@ struct abort_entry_24xx { uint8_t reserved_2[12]; }; +#define ABTS_RCV_TYPE 0x54 +#define ABTS_RSP_TYPE 0x55 +struct abts_entry_24xx { + uint8_t entry_type; + uint8_t entry_count; + uint8_t handle_count; + uint8_t entry_status; + + uint32_t handle; /* type 0x55 only */ + + uint16_t comp_status; /* type 0x55 only */ + uint16_t nport_handle; /* type 0x54 only */ + + uint16_t control_flags; /* type 0x55 only */ + uint8_t vp_idx; + uint8_t sof_type; /* sof_type is upper nibble */ + + uint32_t rx_xch_addr; + + uint8_t d_id[3]; + uint8_t r_ctl; + + uint8_t s_id[3]; + uint8_t cs_ctl; + + uint8_t f_ctl[3]; + uint8_t type; + + uint16_t seq_cnt; + uint8_t df_ctl; + uint8_t seq_id; + + uint16_t rx_id; + uint16_t ox_id; + + uint32_t param; + + union { + struct { + uint32_t subcode3; + uint32_t rsvd; + uint32_t subcode1; + uint32_t subcode2; + } error; + struct { + uint16_t rsrvd1; + uint8_t last_seq_id; + uint8_t seq_id_valid; + uint16_t aborted_rx_id; + uint16_t aborted_ox_id; + uint16_t high_seq_cnt; + uint16_t low_seq_cnt; + } ba_acc; + struct { + uint8_t vendor_unique; + uint8_t explanation; + uint8_t reason; + } ba_rjt; + } payload; + + uint32_t rx_xch_addr_to_abort; +} __packed; + +/* ABTS payload explanation values */ +#define BA_RJT_EXP_NO_ADDITIONAL 0 +#define BA_RJT_EXP_INV_OX_RX_ID 3 +#define BA_RJT_EXP_SEQ_ABORTED 5 + +/* ABTS payload reason values */ +#define BA_RJT_RSN_INV_CMD_CODE 1 +#define BA_RJT_RSN_LOGICAL_ERROR 3 +#define BA_RJT_RSN_LOGICAL_BUSY 5 +#define BA_RJT_RSN_PROTOCOL_ERROR 7 +#define BA_RJT_RSN_UNABLE_TO_PERFORM 9 +#define BA_RJT_RSN_VENDOR_SPECIFIC 0xff + +/* FC_F values */ +#define FC_TYPE_BLD 0x000 /* Basic link data */ +#define FC_F_CTL_RSP_CNTXT 0x800000 /* Responder of exchange */ +#define FC_F_CTL_LAST_SEQ 0x100000 /* Last sequence */ +#define FC_F_CTL_END_SEQ 0x80000 /* Last sequence */ +#define FC_F_CTL_SEQ_INIT 0x010000 /* Sequence initiative */ +#define FC_ROUTING_BLD 0x80 /* Basic link data frame */ +#define FC_R_CTL_BLD_BA_ACC 0x04 /* BA_ACC (basic accept) */ + /* * ISP I/O Register Set structure definitions. */ diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 0c35ab91e381..bb3dfef9afb8 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -230,6 +230,7 @@ void qla2x00_handle_login_done_event(struct scsi_qla_host *, fc_port_t *, int qla24xx_post_gnl_work(struct scsi_qla_host *, fc_port_t *); int qla24xx_post_relogin_work(struct scsi_qla_host *vha); void qla2x00_wait_for_sess_deletion(scsi_qla_host_t *); +void qla24xx_process_purex_rdp(struct scsi_qla_host *vha, void *pkt); /* * Global Functions in qla_mid.c source file. @@ -928,6 +929,7 @@ void qlt_remove_target_resources(struct qla_hw_data *); void qlt_clr_qp_table(struct scsi_qla_host *vha); void qlt_set_mode(struct scsi_qla_host *); int qla2x00_set_data_rate(scsi_qla_host_t *vha, uint16_t mode); +extern void qla24xx_process_purex_list(struct purex_list *); /* nvme.c */ void qla_nvme_unregister_remote_port(struct fc_port *fcport); diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 19daac087ddb..cb40261158c9 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -31,13 +31,144 @@ const char *const port_state_str[] = { "ONLINE" }; -static void qla24xx_purex_iocb(scsi_qla_host_t *vha, struct req_que *req, - struct sts_entry_24xx *pkt) +static void qla24xx_purex_iocb(scsi_qla_host_t *vha, void *pkt, + void (*process_item)(struct scsi_qla_host *vha, void *pkt)) { - memcpy(vha->purex_data, pkt, PUREX_ENTRY_SIZE); + struct purex_list *list = &vha->purex_list; + struct purex_item *item; + ulong flags; + + item = kzalloc(sizeof(*item), GFP_KERNEL); + if (!item) { + ql_log(ql_log_warn, vha, 0x5092, + ">> Failed allocate purex list item.\n"); + return; + } + + item->vha = vha; + item->process_item = process_item; + memcpy(&item->iocb, pkt, sizeof(item->iocb)); + + spin_lock_irqsave(&list->lock, flags); + list_add_tail(&item->list, &list->head); + spin_unlock_irqrestore(&list->lock, flags); + set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); } +static void +qla24xx_process_abts(struct scsi_qla_host *vha, void *pkt) +{ + struct abts_entry_24xx *abts = pkt; + struct qla_hw_data *ha = vha->hw; + struct els_entry_24xx *rsp_els; + struct abts_entry_24xx *abts_rsp; + dma_addr_t dma; + uint32_t fctl; + int rval; + + ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__); + + ql_log(ql_log_warn, vha, 0x0287, + "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n", + abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id, + abts->seq_id, abts->seq_cnt); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287, + "-------- ABTS RCV -------\n"); + ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287, + (uint8_t *)abts, sizeof(*abts)); + + rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma, + GFP_KERNEL); + if (!rsp_els) { + ql_log(ql_log_warn, vha, 0x0287, + "Failed allocate dma buffer ABTS/ELS RSP.\n"); + return; + } + + /* terminate exchange */ + memset(rsp_els, 0, sizeof(*rsp_els)); + rsp_els->entry_type = ELS_IOCB_TYPE; + rsp_els->entry_count = 1; + rsp_els->nport_handle = ~0; + rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort; + rsp_els->control_flags = EPD_RX_XCHG; + ql_dbg(ql_dbg_init, vha, 0x0283, + "Sending ELS Response to terminate exchange %#x...\n", + abts->rx_xch_addr_to_abort); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283, + "-------- ELS RSP -------\n"); + ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283, + (uint8_t *)rsp_els, sizeof(*rsp_els)); + rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0); + if (rval) { + ql_log(ql_log_warn, vha, 0x0288, + "%s: iocb failed to execute -> %x\n", __func__, rval); + } else if (rsp_els->comp_status) { + ql_log(ql_log_warn, vha, 0x0289, + "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n", + __func__, rsp_els->comp_status, + rsp_els->error_subcode_1, rsp_els->error_subcode_2); + } else { + ql_dbg(ql_dbg_init, vha, 0x028a, + "%s: abort exchange done.\n", __func__); + } + + /* send ABTS response */ + abts_rsp = (void *)rsp_els; + memset(abts_rsp, 0, sizeof(*abts_rsp)); + abts_rsp->entry_type = ABTS_RSP_TYPE; + abts_rsp->entry_count = 1; + abts_rsp->nport_handle = abts->nport_handle; + abts_rsp->vp_idx = abts->vp_idx; + abts_rsp->sof_type = abts->sof_type & 0xf0; + abts_rsp->rx_xch_addr = abts->rx_xch_addr; + abts_rsp->d_id[0] = abts->s_id[0]; + abts_rsp->d_id[1] = abts->s_id[1]; + abts_rsp->d_id[2] = abts->s_id[2]; + abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC; + abts_rsp->s_id[0] = abts->d_id[0]; + abts_rsp->s_id[1] = abts->d_id[1]; + abts_rsp->s_id[2] = abts->d_id[2]; + abts_rsp->cs_ctl = abts->cs_ctl; + /* include flipping bit23 in fctl */ + fctl = ~(abts->f_ctl[2] | 0x7F) << 16 | + FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT; + abts_rsp->f_ctl[0] = fctl >> 0 & 0xff; + abts_rsp->f_ctl[1] = fctl >> 8 & 0xff; + abts_rsp->f_ctl[2] = fctl >> 16 & 0xff; + abts_rsp->type = FC_TYPE_BLD; + abts_rsp->rx_id = abts->rx_id; + abts_rsp->ox_id = abts->ox_id; + abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id; + abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id; + abts_rsp->payload.ba_acc.high_seq_cnt = ~0; + abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort; + ql_dbg(ql_dbg_init, vha, 0x028b, + "Sending BA ACC response to ABTS %#x...\n", + abts->rx_xch_addr_to_abort); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b, + "-------- ELS RSP -------\n"); + ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b, + (uint8_t *)abts_rsp, sizeof(*abts_rsp)); + rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0); + if (rval) { + ql_log(ql_log_warn, vha, 0x028c, + "%s: iocb failed to execute -> %x\n", __func__, rval); + } else if (abts_rsp->comp_status) { + ql_log(ql_log_warn, vha, 0x028d, + "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n", + __func__, abts_rsp->comp_status, + abts_rsp->payload.error.subcode1, + abts_rsp->payload.error.subcode2); + } else { + ql_dbg(ql_dbg_init, vha, 0x028ea, + "%s: done.\n", __func__); + } + + dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma); +} + /** * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. * @irq: interrupt number @@ -3097,6 +3228,11 @@ process_err: qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); break; case ABTS_RECV_24XX: + if (qla_ini_mode_enabled(vha)) { + qla24xx_purex_iocb(vha, pkt, + qla24xx_process_abts); + break; + } if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) { /* ensure that the ATIO queue is empty */ @@ -3142,8 +3278,18 @@ process_err: (struct vp_ctrl_entry_24xx *)pkt); break; case PUREX_IOCB_TYPE: - qla24xx_purex_iocb(vha, rsp->req, pkt); + { + struct purex_entry_24xx *purex = (void *)pkt; + + if (purex->els_frame_payload[3] != ELS_COMMAND_RDP) { + ql_dbg(ql_dbg_init, vha, 0x5091, + "Discarding ELS Request opcode %#x...\n", + purex->els_frame_payload[3]); + break; + } + qla24xx_purex_iocb(vha, pkt, qla24xx_process_purex_rdp); break; + } default: /* Type Not Supported. */ ql_dbg(ql_dbg_async, vha, 0x5042, diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index d211f803c699..e86c94f78196 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -361,6 +361,13 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha) } } + if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) { + if (atomic_read(&vha->loop_state) == LOOP_READY) { + qla24xx_process_purex_list(&vha->purex_list); + clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); + } + } + if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { ql_dbg(ql_dbg_dpc, vha, 0x4016, "FCPort update scheduled.\n"); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index c7dcf5656c22..7ab32977ea96 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3286,11 +3286,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) goto probe_failed; } - base_vha->purex_data = kzalloc(PUREX_ENTRY_SIZE, GFP_KERNEL); - if (!base_vha->purex_data) - ql_log(ql_log_warn, base_vha, 0x7118, - "Failed to allocate memory for PUREX data\n"); - if (IS_QLAFX00(ha)) host->can_queue = QLAFX00_MAX_CANQUEUE; else @@ -3473,7 +3468,6 @@ skip_dpc: return 0; probe_failed: - kfree(base_vha->purex_data); if (base_vha->gnl.l) { dma_free_coherent(&ha->pdev->dev, base_vha->gnl.size, base_vha->gnl.l, base_vha->gnl.ldma); @@ -3790,8 +3784,6 @@ qla2x00_remove_one(struct pci_dev *pdev) qla84xx_put_chip(base_vha); - kfree(base_vha->purex_data); - /* Disable timer */ if (base_vha->timer_active) qla2x00_stop_timer(base_vha); @@ -3833,6 +3825,20 @@ qla2x00_remove_one(struct pci_dev *pdev) pci_disable_device(pdev); } +static inline void +qla24xx_free_purex_list(struct purex_list *list) +{ + struct list_head *item, *next; + ulong flags; + + spin_lock_irqsave(&list->lock, flags); + list_for_each_safe(item, next, &list->head) { + list_del(item); + kfree(list_entry(item, struct purex_item, list)); + } + spin_unlock_irqrestore(&list->lock, flags); +} + static void qla2x00_free_device(scsi_qla_host_t *vha) { @@ -3865,6 +3871,8 @@ qla2x00_free_device(scsi_qla_host_t *vha) } + qla24xx_free_purex_list(&vha->purex_list); + qla2x00_mem_free(ha); qla82xx_md_free(vha); @@ -4838,6 +4846,9 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht, INIT_LIST_HEAD(&vha->gpnid_list); INIT_WORK(&vha->iocb_work, qla2x00_iocb_work_fn); + INIT_LIST_HEAD(&vha->purex_list.head); + spin_lock_init(&vha->purex_list.lock); + spin_lock_init(&vha->work_lock); spin_lock_init(&vha->cmd_list_lock); init_waitqueue_head(&vha->fcport_waitQ); @@ -5860,7 +5871,7 @@ qla25xx_rdp_port_speed_currently(struct qla_hw_data *ha) * vha: SCSI qla host * purex: RDP request received by HBA */ -static int qla24xx_process_purex_iocb(struct scsi_qla_host *vha, void *pkt) +void qla24xx_process_purex_rdp(struct scsi_qla_host *vha, void *pkt) { struct qla_hw_data *ha = vha->hw; struct purex_entry_24xx *purex = pkt; @@ -5876,7 +5887,7 @@ static int qla24xx_process_purex_iocb(struct scsi_qla_host *vha, void *pkt) struct buffer_credit_24xx *bbc = NULL; uint8_t *sfp = NULL; uint16_t sfp_flags = 0; - int rval = -ENOMEM; + int rval; ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0180, "%s: Enter\n", __func__); @@ -6301,8 +6312,23 @@ dealloc: if (rsp_els) dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, rsp_els_dma); +} - return rval; +void qla24xx_process_purex_list(struct purex_list *list) +{ + struct list_head head = LIST_HEAD_INIT(head); + struct purex_item *item, *next; + ulong flags; + + spin_lock_irqsave(&list->lock, flags); + list_splice_init(&list->head, &head); + spin_unlock_irqrestore(&list->lock, flags); + + list_for_each_entry_safe(item, next, &head, list) { + list_del(&item->list); + item->process_item(item->vha, &item->iocb); + kfree(item); + } } void @@ -6652,8 +6678,6 @@ qla2x00_disable_board_on_pci_error(struct work_struct *work) base_vha->flags.online = 0; - kfree(base_vha->purex_data); - qla2x00_destroy_deferred_work(ha); /* @@ -6877,11 +6901,13 @@ qla2x00_do_dpc(void *data) } } - if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags) && - (atomic_read(&base_vha->loop_state) == LOOP_READY)) { - qla24xx_process_purex_iocb(base_vha, - base_vha->purex_data); - clear_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags); + if (test_bit(PROCESS_PUREX_IOCB, &base_vha->dpc_flags)) { + if (atomic_read(&base_vha->loop_state) == LOOP_READY) { + qla24xx_process_purex_list + (&base_vha->purex_list); + clear_bit(PROCESS_PUREX_IOCB, + &base_vha->dpc_flags); + } } if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, |