diff options
author | Arun Easi <arun.easi@qlogic.com> | 2010-05-04 15:01:30 -0700 |
---|---|---|
committer | James Bottomley <James.Bottomley@suse.de> | 2010-05-16 18:21:59 -0400 |
commit | bad750028917a7b804623701d0674e46c6012c18 (patch) | |
tree | f8c4032b480e3c93b906e313eb6d371565b4b66d /drivers/scsi/qla2xxx/qla_os.c | |
parent | 3822263eb1e74821ad1ae886ddd2184ae9395ff7 (diff) | |
download | op-kernel-dev-bad750028917a7b804623701d0674e46c6012c18.zip op-kernel-dev-bad750028917a7b804623701d0674e46c6012c18.tar.gz |
[SCSI] qla2xxx: T10 DIF support added.
Signed-off-by: Duane Grigsby <duane.grigsby@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 75 |
1 files changed, 67 insertions, 8 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 523d414..5104aef 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -92,6 +92,19 @@ module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(ql2xmaxqdepth, "Maximum queue depth to report for target devices."); +/* Do not change the value of this after module load */ +int ql2xenabledif = 1; +module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(ql2xenabledif, + " Enable T10-CRC-DIF " + " Default is 0 - No DIF Support. 1 - Enable it"); + +int ql2xenablehba_err_chk; +module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(ql2xenablehba_err_chk, + " Enable T10-CRC-DIF Error isolation by HBA" + " Default is 0 - Error isolation disabled, 1 - Enable it"); + int ql2xiidmaenable=1; module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR); MODULE_PARM_DESC(ql2xiidmaenable, @@ -537,6 +550,14 @@ qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) if (fcport->drport) goto qc24_target_busy; + if (!vha->flags.difdix_supported && + scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { + DEBUG2(qla_printk(KERN_ERR, ha, + "DIF Cap Not Reg, fail DIF capable cmd's:%x\n", + cmd->cmnd[0])); + cmd->result = DID_NO_CONNECT << 16; + goto qc24_fail_command; + } if (atomic_read(&fcport->state) != FCS_ONLINE) { if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || atomic_read(&base_vha->loop_state) == LOOP_DEAD) { @@ -776,7 +797,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd) if (sp == NULL) continue; - if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID)) + if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID) && + !IS_PROT_IO(sp)) continue; if (sp->cmd != cmd) continue; @@ -842,7 +864,7 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t, sp = req->outstanding_cmds[cnt]; if (!sp) continue; - if (sp->ctx) + if ((sp->ctx) && !IS_PROT_IO(sp)) continue; if (vha->vp_idx != sp->fcport->vha->vp_idx) continue; @@ -1189,7 +1211,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res) if (sp) { req->outstanding_cmds[cnt] = NULL; if (!sp->ctx || - (sp->flags & SRB_FCP_CMND_DMA_VALID)) { + (sp->flags & SRB_FCP_CMND_DMA_VALID) || + IS_PROT_IO(sp)) { sp->cmd->result = res; qla2x00_sp_compl(ha, sp); } else { @@ -1553,7 +1576,7 @@ static struct isp_operations qla25xx_isp_ops = { .read_optrom = qla25xx_read_optrom_data, .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, - .start_scsi = qla24xx_start_scsi, + .start_scsi = qla24xx_dif_start_scsi, .abort_isp = qla2x00_abort_isp, }; @@ -2185,6 +2208,22 @@ skip_dpc: DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n", base_vha->host_no, ha)); + if (IS_QLA25XX(ha) && ql2xenabledif) { + if (ha->fw_attributes & BIT_4) { + base_vha->flags.difdix_supported = 1; + DEBUG18(qla_printk(KERN_INFO, ha, + "Registering for DIF/DIX type 1 and 3" + " protection.\n")); + scsi_host_set_prot(host, + SHOST_DIF_TYPE1_PROTECTION + | SHOST_DIF_TYPE3_PROTECTION + | SHOST_DIX_TYPE1_PROTECTION + | SHOST_DIX_TYPE3_PROTECTION); + scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC); + } else + base_vha->flags.difdix_supported = 0; + } + ha->isp_ops->enable_intrs(ha); ret = scsi_add_host(host, &pdev->dev); @@ -2546,7 +2585,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len, if (!ha->s_dma_pool) goto fail_free_nvram; - if (IS_QLA82XX(ha)) { + if (IS_QLA82XX(ha) || ql2xenabledif) { ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev, DSD_LIST_DMA_POOL_SIZE, 8, 0); if (!ha->dl_dma_pool) { @@ -2678,12 +2717,12 @@ fail_free_ms_iocb: ha->ms_iocb = NULL; ha->ms_iocb_dma = 0; fail_dma_pool: - if (IS_QLA82XX(ha)) { + if (IS_QLA82XX(ha) || ql2xenabledif) { dma_pool_destroy(ha->fcp_cmnd_dma_pool); ha->fcp_cmnd_dma_pool = NULL; } fail_dl_dma_pool: - if (IS_QLA82XX(ha)) { + if (IS_QLA82XX(ha) || ql2xenabledif) { dma_pool_destroy(ha->dl_dma_pool); ha->dl_dma_pool = NULL; } @@ -3346,11 +3385,31 @@ static void qla2x00_sp_free_dma(srb_t *sp) { struct scsi_cmnd *cmd = sp->cmd; + struct qla_hw_data *ha = sp->fcport->vha->hw; if (sp->flags & SRB_DMA_VALID) { scsi_dma_unmap(cmd); sp->flags &= ~SRB_DMA_VALID; } + + if (sp->flags & SRB_CRC_PROT_DMA_VALID) { + dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), + scsi_prot_sg_count(cmd), cmd->sc_data_direction); + sp->flags &= ~SRB_CRC_PROT_DMA_VALID; + } + + if (sp->flags & SRB_CRC_CTX_DSD_VALID) { + /* List assured to be having elements */ + qla2x00_clean_dsd_pool(ha, sp); + sp->flags &= ~SRB_CRC_CTX_DSD_VALID; + } + + if (sp->flags & SRB_CRC_CTX_DMA_VALID) { + dma_pool_free(ha->dl_dma_pool, sp->ctx, + ((struct crc_context *)sp->ctx)->crc_ctx_dma); + sp->flags &= ~SRB_CRC_CTX_DMA_VALID; + } + CMD_SP(cmd) = NULL; } @@ -3464,7 +3523,7 @@ qla2x00_timer(scsi_qla_host_t *vha) sp = req->outstanding_cmds[index]; if (!sp) continue; - if (sp->ctx) + if (sp->ctx && !IS_PROT_IO(sp)) continue; sfcp = sp->fcport; if (!(sfcp->flags & FCF_FCP2_DEVICE)) |