From 8fcd6b8b0fbc61fb1af2960dcec8b23bd2211372 Mon Sep 17 00:00:00 2001 From: Chad Dupuis Date: Wed, 22 Aug 2012 14:21:06 -0400 Subject: [SCSI] qla2xxx: Changes for ISP83xx loopback support. Minor changes to support loopback functionality with ISP83xx CNAs. Signed-off-by: Giridhar Malavali Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index 6da13e2..581592f 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -530,13 +530,13 @@ done_unmap_sg: done: return rval; } - -/* Set the port configuration to enable the - * internal loopback on ISP81XX +/* + * Set the port configuration to enable the internal or external loopback + * depending on the loopback mode. */ static inline int -qla81xx_set_internal_loopback(scsi_qla_host_t *vha, uint16_t *config, - uint16_t *new_config) +qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config, + uint16_t *new_config, uint16_t mode) { int ret = 0; int rval = 0; @@ -545,8 +545,14 @@ qla81xx_set_internal_loopback(scsi_qla_host_t *vha, uint16_t *config, if (!IS_QLA81XX(ha) && !IS_QLA8031(ha)) goto done_set_internal; - new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1); - memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ; + if (mode == INTERNAL_LOOPBACK) + new_config[0] = config[0] | (ENABLE_INTERNAL_LOOPBACK << 1); + else if (mode == EXTERNAL_LOOPBACK) + new_config[0] = config[0] | (ENABLE_EXTERNAL_LOOPBACK << 1); + ql_dbg(ql_dbg_user, vha, 0x70be, + "new_config[0]=%02x\n", (new_config[0] & INTERNAL_LOOPBACK_MASK)); + + memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3); ha->notify_dcbx_comp = 1; ret = qla81xx_set_port_config(vha, new_config); @@ -572,11 +578,9 @@ done_set_internal: return rval; } -/* Set the port configuration to disable the - * internal loopback on ISP81XX - */ +/* Disable loopback mode */ static inline int -qla81xx_reset_internal_loopback(scsi_qla_host_t *vha, uint16_t *config, +qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config, int wait) { int ret = 0; @@ -589,8 +593,12 @@ qla81xx_reset_internal_loopback(scsi_qla_host_t *vha, uint16_t *config, memset(new_config, 0 , sizeof(new_config)); if ((config[0] & INTERNAL_LOOPBACK_MASK) >> 1 == - ENABLE_INTERNAL_LOOPBACK) { + ENABLE_INTERNAL_LOOPBACK || + (config[0] & INTERNAL_LOOPBACK_MASK) >> 1 == + ENABLE_EXTERNAL_LOOPBACK) { new_config[0] = config[0] & ~INTERNAL_LOOPBACK_MASK; + ql_dbg(ql_dbg_user, vha, 0x70bf, "new_config[0]=%02x\n", + (new_config[0] & INTERNAL_LOOPBACK_MASK)); memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ; ha->notify_dcbx_comp = wait; @@ -707,7 +715,8 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job) elreq.options = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1]; - if ((ha->current_topology == ISP_CFG_F || + if (atomic_read(&vha->loop_state) == LOOP_READY && + (ha->current_topology == ISP_CFG_F || ((IS_QLA81XX(ha) || IS_QLA8031(ha)) && le32_to_cpu(*(uint32_t *)req_data) == ELS_OPCODE_BYTE && req_data_len == MAX_ELS_FRAME_PAYLOAD)) && @@ -729,30 +738,24 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job) goto done_free_dma_req; } - if (elreq.options != EXTERNAL_LOOPBACK) { - ql_dbg(ql_dbg_user, vha, 0x7020, - "Internal: current port config = %x\n", - config[0]); - if (qla81xx_set_internal_loopback(vha, config, - new_config)) { - ql_log(ql_log_warn, vha, 0x7024, - "Internal loopback failed.\n"); - bsg_job->reply->result = - (DID_ERROR << 16); - rval = -EPERM; - goto done_free_dma_req; - } - } else { - /* For external loopback to work - * ensure internal loopback is disabled - */ - if (qla81xx_reset_internal_loopback(vha, - config, 1)) { - bsg_job->reply->result = - (DID_ERROR << 16); - rval = -EPERM; - goto done_free_dma_req; - } + ql_dbg(ql_dbg_user, vha, 0x70c0, + "elreq.options=%04x\n", elreq.options); + + if (elreq.options == EXTERNAL_LOOPBACK) + if (IS_QLA8031(ha)) + rval = qla81xx_set_loopback_mode(vha, + config, new_config, elreq.options); + else + rval = qla81xx_reset_loopback_mode(vha, + config, 1); + else + rval = qla81xx_set_loopback_mode(vha, config, + new_config, elreq.options); + + if (rval) { + bsg_job->reply->result = (DID_ERROR << 16); + rval = -EPERM; + goto done_free_dma_req; } type = "FC_BSG_HST_VENDOR_LOOPBACK"; @@ -766,7 +769,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job) /* Revert back to original port config * Also clear internal loopback */ - qla81xx_reset_internal_loopback(vha, + qla81xx_reset_loopback_mode(vha, new_config, 0); } diff --git a/drivers/scsi/qla2xxx/qla_bsg.h b/drivers/scsi/qla2xxx/qla_bsg.h index 1875ee1..cd63ec7 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.h +++ b/drivers/scsi/qla2xxx/qla_bsg.h @@ -50,8 +50,10 @@ #define INT_DEF_LB_ECHO_CMD 1 /* Loopback related definations */ +#define INTERNAL_LOOPBACK 0xF1 #define EXTERNAL_LOOPBACK 0xF2 #define ENABLE_INTERNAL_LOOPBACK 0x02 +#define ENABLE_EXTERNAL_LOOPBACK 0x04 #define INTERNAL_LOOPBACK_MASK 0x000E #define MAX_ELS_FRAME_PAYLOAD 252 #define ELS_OPCODE_BYTE 0x10 diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 6012805..647ddfa 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -18,7 +18,7 @@ * | Device Discovery | 0x2087 | 0x2020-0x2022 | * | Queue Command and IO tracing | 0x3030 | 0x3006,0x3008 | * | | | 0x302d-0x302e | - * | DPC Thread | 0x401c | 0x4002,0x4013 | + * | DPC Thread | 0x401d | 0x4002,0x4013 | * | Async Events | 0x5071 | 0x502b-0x502f | * | | | 0x5047,0x5052 | * | Timer Routines | 0x6011 | | @@ -29,12 +29,11 @@ * | | | 0x70a5,0x70a6, | * | | | 0x70a8,0x70ab, | * | | | 0x70ad-0x70ae | - * | | | 0x70be-70c0 | * | Task Management | 0x803c | 0x8025-0x8026 | * | | | 0x800b,0x8039 | * | AER/EEH | 0x9011 | | * | Virtual Port | 0xa007 | | - * | ISP82XX Specific | 0xb084 | 0xb002 | + * | ISP82XX Specific | 0xb084 | 0xb002,0xb024 | * | | | 0xb082,0xb083 | * | MultiQ | 0xc00c | | * | Misc | 0xd010 | | diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 874c1cd..d752008 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -799,6 +799,7 @@ typedef struct { #define MBC_SEND_RNFT_ELS 0x5e /* Send RNFT ELS request */ #define MBC_GET_LINK_PRIV_STATS 0x6d /* Get link & private data. */ #define MBC_SET_VENDOR_ID 0x76 /* Set Vendor ID. */ +#define MBC_PORT_RESET 0x120 /* Port Reset */ #define MBC_SET_PORT_CONFIG 0x122 /* Set port configuration */ #define MBC_GET_PORT_CONFIG 0x123 /* Get port configuration */ diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index b808b8e..8d77e52 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -48,7 +48,7 @@ extern void qla2x00_update_fcports(scsi_qla_host_t *); extern int qla2x00_abort_isp(scsi_qla_host_t *); extern void qla2x00_abort_isp_cleanup(scsi_qla_host_t *); -extern void qla82xx_quiescent_state_cleanup(scsi_qla_host_t *); +extern void qla2x00_quiesce_io(scsi_qla_host_t *); extern void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 0ea15b7..37eeaa8 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4165,7 +4165,7 @@ qla2xxx_mctp_dump(scsi_qla_host_t *vha) } /* -* qla82xx_quiescent_state_cleanup +* qla2x00_quiesce_io * Description: This function will block the new I/Os * Its not aborting any I/Os as context * is not destroyed during quiescence @@ -4173,20 +4173,20 @@ qla2xxx_mctp_dump(scsi_qla_host_t *vha) * return : void */ void -qla82xx_quiescent_state_cleanup(scsi_qla_host_t *vha) +qla2x00_quiesce_io(scsi_qla_host_t *vha) { struct qla_hw_data *ha = vha->hw; struct scsi_qla_host *vp; - ql_dbg(ql_dbg_p3p, vha, 0xb002, - "Performing ISP error recovery - ha=%p.\n", ha); + ql_dbg(ql_dbg_dpc, vha, 0x401d, + "Quiescing I/O - ha=%p.\n", ha); atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); if (atomic_read(&vha->loop_state) != LOOP_DOWN) { atomic_set(&vha->loop_state, LOOP_DOWN); qla2x00_mark_all_devices_lost(vha, 0); list_for_each_entry(vp, &ha->vp_list, list) - qla2x00_mark_all_devices_lost(vha, 0); + qla2x00_mark_all_devices_lost(vp, 0); } else { if (!atomic_read(&vha->loop_down_timer)) atomic_set(&vha->loop_down_timer, diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 1222e93..2b05af1 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -295,14 +295,16 @@ qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6]); - /* Acknowledgement needed? [Notify && non-zero timeout]. */ - timeout = (descr >> 8) & 0xf; - if (aen != MBA_IDC_NOTIFY || !timeout) - return; + if (IS_QLA81XX(vha->hw)) { + /* Acknowledgement needed? [Notify && non-zero timeout]. */ + timeout = (descr >> 8) & 0xf; + if (aen != MBA_IDC_NOTIFY || !timeout) + return; - ql_dbg(ql_dbg_async, vha, 0x5022, - "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", - vha->host_no, event[aen & 0xff], timeout); + ql_dbg(ql_dbg_async, vha, 0x5022, + "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", + vha->host_no, event[aen & 0xff], timeout); + } rval = qla2x00_post_idc_ack_work(vha, mb); if (rval != QLA_SUCCESS) @@ -982,8 +984,17 @@ skip_rio: "FCF Configuration Error -- %04x %04x %04x.\n", mb[1], mb[2], mb[3]); break; - case MBA_IDC_COMPLETE: case MBA_IDC_NOTIFY: + /* See if we need to quiesce any I/O */ + if (IS_QLA8031(vha->hw)) + if ((mb[2] & 0x7fff) == MBC_PORT_RESET || + (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) { + set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); + /* Ack that we have quiesced I/O */ + qla81xx_idc_event(vha, mb[0], mb[1]); + qla2xxx_wake_dpc(vha); + } + case MBA_IDC_COMPLETE: case MBA_IDC_TIME_EXT: if (IS_QLA81XX(vha->hw)) qla81xx_idc_event(vha, mb[0], mb[1]); diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c index 75cdf20..9f4dcf5 100644 --- a/drivers/scsi/qla2xxx/qla_nx.c +++ b/drivers/scsi/qla2xxx/qla_nx.c @@ -2939,7 +2939,7 @@ qla82xx_need_qsnt_handler(scsi_qla_host_t *vha) if (vha->flags.online) { /*Block any further I/O and wait for pending cmnds to complete*/ - qla82xx_quiescent_state_cleanup(vha); + qla2x00_quiesce_io(vha); } /* Set the quiescence ready bit */ diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 6250e57..e68fe12 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4513,14 +4513,21 @@ qla2x00_do_dpc(void *data) if (test_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags)) { ql_dbg(ql_dbg_dpc, base_vha, 0x4009, "Quiescence mode scheduled.\n"); - qla82xx_device_state_handler(base_vha); - clear_bit(ISP_QUIESCE_NEEDED, &base_vha->dpc_flags); - if (!ha->flags.quiesce_owner) { - qla2x00_perform_loop_resync(base_vha); - - qla82xx_idc_lock(ha); - qla82xx_clear_qsnt_ready(base_vha); - qla82xx_idc_unlock(ha); + if (IS_QLA82XX(ha)) { + qla82xx_device_state_handler(base_vha); + clear_bit(ISP_QUIESCE_NEEDED, + &base_vha->dpc_flags); + if (!ha->flags.quiesce_owner) { + qla2x00_perform_loop_resync(base_vha); + + qla82xx_idc_lock(ha); + qla82xx_clear_qsnt_ready(base_vha); + qla82xx_idc_unlock(ha); + } + } else { + clear_bit(ISP_QUIESCE_NEEDED, + &base_vha->dpc_flags); + qla2x00_quiesce_io(base_vha); } ql_dbg(ql_dbg_dpc, base_vha, 0x400a, "Quiescence mode end.\n"); -- cgit v0.10.2