From edd05de1975927b51b4e8e1135ef4d6130dfd17c Mon Sep 17 00:00:00 2001 From: Duane Grigsby Date: Fri, 13 Oct 2017 09:34:06 -0700 Subject: scsi: qla2xxx: Changes to support N2N logins If we discovered a topology that is N2N then we will issue a login to the target. If our WWPN is bigger than the target's WWPN then we will initiate login, otherwise we will just wait for the target to initiate login. [mkp: many whitespace errors] Signed-off-by: Duane Grigsby Signed-off-by: Michael Hernandez Signed-off-by: Himanshu Madhani Reviewed-by: Johannes Thumshirn Tested-by: Ewan D. Milne Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_iocb.c | 195 +++++++++++++++++++++++++++++++++++++--- 1 file changed, 185 insertions(+), 10 deletions(-) (limited to 'drivers/scsi/qla2xxx/qla_iocb.c') diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 2f94159186d7..d810a447cb4a 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -2518,6 +2518,7 @@ qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) { scsi_qla_host_t *vha = sp->vha; struct srb_iocb *elsio = &sp->u.iocb_cmd; + uint32_t dsd_len = 24; els_iocb->entry_type = ELS_IOCB_TYPE; els_iocb->entry_count = 1; @@ -2534,23 +2535,197 @@ qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; els_iocb->port_id[1] = sp->fcport->d_id.b.area; els_iocb->port_id[2] = sp->fcport->d_id.b.domain; + els_iocb->s_id[0] = vha->d_id.b.al_pa; + els_iocb->s_id[1] = vha->d_id.b.area; + els_iocb->s_id[2] = vha->d_id.b.domain; els_iocb->control_flags = 0; - els_iocb->tx_byte_count = sizeof(struct els_logo_payload); - els_iocb->tx_address[0] = - cpu_to_le32(LSD(elsio->u.els_logo.els_logo_pyld_dma)); - els_iocb->tx_address[1] = - cpu_to_le32(MSD(elsio->u.els_logo.els_logo_pyld_dma)); - els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); + if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { + els_iocb->tx_byte_count = sizeof(struct els_plogi_payload); + els_iocb->tx_address[0] = + cpu_to_le32(LSD(elsio->u.els_plogi.els_plogi_pyld_dma)); + els_iocb->tx_address[1] = + cpu_to_le32(MSD(elsio->u.els_plogi.els_plogi_pyld_dma)); + els_iocb->tx_len = dsd_len; + + els_iocb->rx_dsd_count = 1; + els_iocb->rx_byte_count = sizeof(struct els_plogi_payload); + els_iocb->rx_address[0] = + cpu_to_le32(LSD(elsio->u.els_plogi.els_resp_pyld_dma)); + els_iocb->rx_address[1] = + cpu_to_le32(MSD(elsio->u.els_plogi.els_resp_pyld_dma)); + els_iocb->rx_len = dsd_len; + ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, + "PLOGI ELS IOCB:\n"); + ql_dump_buffer(ql_log_info, vha, 0x0109, + (uint8_t *)els_iocb, 0x70); + } else { + els_iocb->tx_byte_count = sizeof(struct els_logo_payload); + els_iocb->tx_address[0] = + cpu_to_le32(LSD(elsio->u.els_logo.els_logo_pyld_dma)); + els_iocb->tx_address[1] = + cpu_to_le32(MSD(elsio->u.els_logo.els_logo_pyld_dma)); + els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); - els_iocb->rx_byte_count = 0; - els_iocb->rx_address[0] = 0; - els_iocb->rx_address[1] = 0; - els_iocb->rx_len = 0; + els_iocb->rx_byte_count = 0; + els_iocb->rx_address[0] = 0; + els_iocb->rx_address[1] = 0; + els_iocb->rx_len = 0; + } sp->vha->qla_stats.control_requests++; } +static void +qla2x00_els_dcmd2_sp_free(void *data) +{ + srb_t *sp = data; + struct srb_iocb *elsio = &sp->u.iocb_cmd; + + if (elsio->u.els_plogi.els_plogi_pyld) + dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, + elsio->u.els_plogi.els_plogi_pyld, + elsio->u.els_plogi.els_plogi_pyld_dma); + + if (elsio->u.els_plogi.els_resp_pyld) + dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, + elsio->u.els_plogi.els_resp_pyld, + elsio->u.els_plogi.els_resp_pyld_dma); + + del_timer(&elsio->timer); + qla2x00_rel_sp(sp); +} + +static void +qla2x00_els_dcmd2_iocb_timeout(void *data) +{ + srb_t *sp = data; + fc_port_t *fcport = sp->fcport; + struct scsi_qla_host *vha = sp->vha; + struct qla_hw_data *ha = vha->hw; + struct srb_iocb *lio = &sp->u.iocb_cmd; + unsigned long flags = 0; + int res; + + ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, + "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", + sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); + + /* Abort the exchange */ + spin_lock_irqsave(&ha->hardware_lock, flags); + res = ha->isp_ops->abort_command(sp); + ql_dbg(ql_dbg_io, vha, 0x3070, + "mbx abort_command %s\n", + (res == QLA_SUCCESS) ? "successful" : "failed"); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + complete(&lio->u.els_plogi.comp); +} + +static void +qla2x00_els_dcmd2_sp_done(void *ptr, int res) +{ + srb_t *sp = ptr; + fc_port_t *fcport = sp->fcport; + struct srb_iocb *lio = &sp->u.iocb_cmd; + struct scsi_qla_host *vha = sp->vha; + + ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3072, + "%s ELS hdl=%x, portid=%06x done %8pC\n", + sp->name, sp->handle, fcport->d_id.b24, fcport->port_name); + + complete(&lio->u.els_plogi.comp); +} + +int +qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, + fc_port_t *fcport, port_id_t remote_did) +{ + srb_t *sp; + struct srb_iocb *elsio = NULL; + struct qla_hw_data *ha = vha->hw; + int rval = QLA_SUCCESS; + void *ptr, *resp_ptr; + dma_addr_t ptr_dma; + + /* Alloc SRB structure */ + sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); + if (!sp) { + ql_log(ql_log_info, vha, 0x70e6, + "SRB allocation failed\n"); + return -ENOMEM; + } + + elsio = &sp->u.iocb_cmd; + fcport->d_id.b.domain = remote_did.b.domain; + fcport->d_id.b.area = remote_did.b.area; + fcport->d_id.b.al_pa = remote_did.b.al_pa; + + ql_dbg(ql_dbg_io, vha, 0x3073, + "Enter: PLOGI portid=%06x\n", fcport->d_id.b24); + + sp->type = SRB_ELS_DCMD; + sp->name = "ELS_DCMD"; + sp->fcport = fcport; + qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT); + elsio->timeout = qla2x00_els_dcmd2_iocb_timeout; + sp->done = qla2x00_els_dcmd2_sp_done; + sp->free = qla2x00_els_dcmd2_sp_free; + + ptr = elsio->u.els_plogi.els_plogi_pyld = + dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, + &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); + ptr_dma = elsio->u.els_plogi.els_plogi_pyld_dma; + + if (!elsio->u.els_plogi.els_plogi_pyld) { + rval = QLA_FUNCTION_FAILED; + goto out; + } + + resp_ptr = elsio->u.els_plogi.els_resp_pyld = + dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, + &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); + + if (!elsio->u.els_plogi.els_resp_pyld) { + rval = QLA_FUNCTION_FAILED; + goto out; + } + + ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); + + memset(ptr, 0, sizeof(struct els_plogi_payload)); + memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); + elsio->u.els_plogi.els_cmd = els_opcode; + elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; + qla24xx_get_port_login_templ(vha, ptr_dma + 4, + &elsio->u.els_plogi.els_plogi_pyld->data[0], + sizeof(struct els_plogi_payload)); + + ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); + ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x0109, + (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 0x70); + + init_completion(&elsio->u.els_plogi.comp); + rval = qla2x00_start_sp(sp); + if (rval != QLA_SUCCESS) { + rval = QLA_FUNCTION_FAILED; + goto out; + } + + ql_dbg(ql_dbg_io, vha, 0x3074, + "%s PLOGI sent, hdl=%x, loopid=%x, portid=%06x\n", + sp->name, sp->handle, fcport->loop_id, fcport->d_id.b24); + + wait_for_completion(&elsio->u.els_plogi.comp); + + if (elsio->u.els_plogi.comp_status != CS_COMPLETE) + rval = QLA_FUNCTION_FAILED; + +out: + sp->free(sp); + return rval; +} + static void qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) { -- cgit v1.2.3