It stands for Dual ULP Aware. Will add a comment explaining that. Thanks, JB -----Original Message----- From: Hannes Reinecke [mailto:hare@xxxxxxx] Sent: Friday, December 18, 2015 2:34 PM To: Jitendra Bhivare; linux-scsi@xxxxxxxxxxxxxxx; michaelc@xxxxxxxxxxx Subject: Re: [PATCH 10/15] be2iscsi: Add FW config validation On 12/15/2015 04:55 PM, Jitendra Bhivare wrote: > From: Jitendra <jitendra.bhivare@xxxxxxxxxxxxx> > > System crash in I+T card personality > > Fix to add validation for ULP in initiator mode, physical port number, > and supported queue, icd, cid counts. > > Signed-off-by: Jitendra <jitendra.bhivare@xxxxxxxxxxxxx> > --- > drivers/scsi/be2iscsi/be_main.c | 2 +- > drivers/scsi/be2iscsi/be_main.h | 2 + > drivers/scsi/be2iscsi/be_mgmt.c | 188 +++++++++++++++++++++++++-------------- > 3 files changed, 123 insertions(+), 69 deletions(-) > > diff --git a/drivers/scsi/be2iscsi/be_main.c > b/drivers/scsi/be2iscsi/be_main.c index 8967e05..a665e6a 100644 > --- a/drivers/scsi/be2iscsi/be_main.c > +++ b/drivers/scsi/be2iscsi/be_main.c > @@ -5670,6 +5670,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev, > goto free_port; > } > mgmt_get_port_name(&phba->ctrl, phba); > + beiscsi_get_params(phba); > > if (enable_msix) > find_num_cpus(phba); > @@ -5687,7 +5688,6 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev, > } > > phba->shost->max_id = phba->params.cxns_per_ctrl; > - beiscsi_get_params(phba); > phba->shost->can_queue = phba->params.ios_per_ctrl; > ret = beiscsi_init_port(phba); > if (ret < 0) { > diff --git a/drivers/scsi/be2iscsi/be_main.h > b/drivers/scsi/be2iscsi/be_main.h index c09082a..f89861b 100644 > --- a/drivers/scsi/be2iscsi/be_main.h > +++ b/drivers/scsi/be2iscsi/be_main.h > @@ -397,7 +397,9 @@ struct beiscsi_hba { > * group together since they are used most frequently > * for cid to cri conversion > */ > +#define BEISCSI_PHYS_PORT_MAX 4 > unsigned int phys_port; > + /* valid values of phys_port id are 0, 1, 2, 3 */ > unsigned int eqid_count; > unsigned int cqid_count; > unsigned int iscsi_cid_start[BEISCSI_ULP_COUNT]; > diff --git a/drivers/scsi/be2iscsi/be_mgmt.c > b/drivers/scsi/be2iscsi/be_mgmt.c index ad7aa75..15f7ad7 100644 > --- a/drivers/scsi/be2iscsi/be_mgmt.c > +++ b/drivers/scsi/be2iscsi/be_mgmt.c > @@ -373,90 +373,142 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl, > struct beiscsi_hba *phba) > { > struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); > - struct be_fw_cfg *req = embedded_payload(wrb); > - int status = 0; > + struct be_fw_cfg *pfw_cfg = embedded_payload(wrb); > + uint32_t cid_count, icd_count; > + int status = -EINVAL; > + uint8_t ulp_num = 0; > > mutex_lock(&ctrl->mbox_lock); > memset(wrb, 0, sizeof(*wrb)); > + be_wrb_hdr_prepare(wrb, sizeof(*pfw_cfg), true, 0); > > - be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); > - > - be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, > + be_cmd_hdr_prepare(&pfw_cfg->hdr, CMD_SUBSYSTEM_COMMON, > OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, > EMBED_MBX_MAX_PAYLOAD_SIZE); > - status = be_mbox_notify(ctrl); > - if (!status) { > - uint8_t ulp_num = 0; > - struct be_fw_cfg *pfw_cfg; > - pfw_cfg = req; > > - if (!is_chip_be2_be3r(phba)) { > - phba->fw_config.eqid_count = pfw_cfg->eqid_count; > - phba->fw_config.cqid_count = pfw_cfg->cqid_count; > + if (be_mbox_notify(ctrl)) { > + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > + "BG_%d : Failed in mgmt_get_fw_config\n"); > + goto fail_init; > + } > > - beiscsi_log(phba, KERN_INFO, > - BEISCSI_LOG_INIT, > - "BG_%d : EQ_Count : %d CQ_Count : %d\n", > - phba->fw_config.eqid_count, > + /* FW response formats depend on port id */ > + phba->fw_config.phys_port = pfw_cfg->phys_port; > + if (phba->fw_config.phys_port >= BEISCSI_PHYS_PORT_MAX) { > + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > + "BG_%d : invalid physical port id %d\n", > + phba->fw_config.phys_port); > + goto fail_init; > + } > + > + /* populate and check FW config against min and max values */ > + if (!is_chip_be2_be3r(phba)) { > + phba->fw_config.eqid_count = pfw_cfg->eqid_count; > + phba->fw_config.cqid_count = pfw_cfg->cqid_count; > + if (phba->fw_config.eqid_count == 0 || > + phba->fw_config.eqid_count > 2048) { > + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > + "BG_%d : invalid EQ count %d\n", > + phba->fw_config.eqid_count); > + goto fail_init; > + } > + if (phba->fw_config.cqid_count == 0 || > + phba->fw_config.cqid_count > 4096) { > + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > + "BG_%d : invalid CQ count %d\n", > phba->fw_config.cqid_count); > + goto fail_init; > } > + beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, > + "BG_%d : EQ_Count : %d CQ_Count : %d\n", > + phba->fw_config.eqid_count, > + phba->fw_config.cqid_count); > + } > > - for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) > - if (pfw_cfg->ulp[ulp_num].ulp_mode & > - BEISCSI_ULP_ISCSI_INI_MODE) > - set_bit(ulp_num, > - &phba->fw_config.ulp_supported); > - > - phba->fw_config.phys_port = pfw_cfg->phys_port; > - for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { > - if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) { > - > - phba->fw_config.iscsi_cid_start[ulp_num] = > - pfw_cfg->ulp[ulp_num].sq_base; > - phba->fw_config.iscsi_cid_count[ulp_num] = > - pfw_cfg->ulp[ulp_num].sq_count; > - > - phba->fw_config.iscsi_icd_start[ulp_num] = > - pfw_cfg->ulp[ulp_num].icd_base; > - phba->fw_config.iscsi_icd_count[ulp_num] = > - pfw_cfg->ulp[ulp_num].icd_count; > - > - phba->fw_config.iscsi_chain_start[ulp_num] = > - pfw_cfg->chain_icd[ulp_num].chain_base; > - phba->fw_config.iscsi_chain_count[ulp_num] = > - pfw_cfg->chain_icd[ulp_num].chain_count; > - > - beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, > - "BG_%d : Function loaded on ULP : %d\n" > - "\tiscsi_cid_count : %d\n" > - "\tiscsi_cid_start : %d\n" > - "\t iscsi_icd_count : %d\n" > - "\t iscsi_icd_start : %d\n", > - ulp_num, > - phba->fw_config. > - iscsi_cid_count[ulp_num], > - phba->fw_config. > - iscsi_cid_start[ulp_num], > - phba->fw_config. > - iscsi_icd_count[ulp_num], > - phba->fw_config. > - iscsi_icd_start[ulp_num]); > - } > + /** > + * Check on which all ULP iSCSI Protocol is loaded. > + * Set the Bit for those ULP. This set flag is used > + * at all places in the code to check on which ULP > + * iSCSi Protocol is loaded > + **/ > + for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) { > + if (pfw_cfg->ulp[ulp_num].ulp_mode & > + BEISCSI_ULP_ISCSI_INI_MODE) { > + set_bit(ulp_num, &phba->fw_config.ulp_supported); > + > + /* Get the CID, ICD and Chain count for each ULP */ > + phba->fw_config.iscsi_cid_start[ulp_num] = > + pfw_cfg->ulp[ulp_num].sq_base; > + phba->fw_config.iscsi_cid_count[ulp_num] = > + pfw_cfg->ulp[ulp_num].sq_count; > + > + phba->fw_config.iscsi_icd_start[ulp_num] = > + pfw_cfg->ulp[ulp_num].icd_base; > + phba->fw_config.iscsi_icd_count[ulp_num] = > + pfw_cfg->ulp[ulp_num].icd_count; > + > + phba->fw_config.iscsi_chain_start[ulp_num] = > + pfw_cfg->chain_icd[ulp_num].chain_base; > + phba->fw_config.iscsi_chain_count[ulp_num] = > + pfw_cfg->chain_icd[ulp_num].chain_count; > + > + beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, > + "BG_%d : Function loaded on ULP : %d\n" > + "\tiscsi_cid_count : %d\n" > + "\tiscsi_cid_start : %d\n" > + "\t iscsi_icd_count : %d\n" > + "\t iscsi_icd_start : %d\n", > + ulp_num, > + phba->fw_config. > + iscsi_cid_count[ulp_num], > + phba->fw_config. > + iscsi_cid_start[ulp_num], > + phba->fw_config. > + iscsi_icd_count[ulp_num], > + phba->fw_config. > + iscsi_icd_start[ulp_num]); > } > + } > > - phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode & > - BEISCSI_FUNC_DUA_MODE); > + if (phba->fw_config.ulp_supported == 0) { > + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > + "BG_%d : iSCSI initiator mode not set: ULP0 %x ULP1 %x\n", > + pfw_cfg->ulp[BEISCSI_ULP0].ulp_mode, > + pfw_cfg->ulp[BEISCSI_ULP1].ulp_mode); > + goto fail_init; > + } > > - beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, > - "BG_%d : DUA Mode : 0x%x\n", > - phba->fw_config.dual_ulp_aware); > + /** > + * ICD is shared among ULPs. Use icd_count of any one loaded ULP > + **/ > + for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) > + if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) > + break; > + icd_count = phba->fw_config.iscsi_icd_count[ulp_num]; > + if (icd_count == 0 || icd_count > 65536) { > + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > + "BG_%d: invalid ICD count %d\n", icd_count); > + goto fail_init; > + } > > - } else { > + cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) + > + BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1); > + if (cid_count == 0 || cid_count > 4096) { > beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, > - "BG_%d : Failed in mgmt_get_fw_config\n"); > - status = -EINVAL; > + "BG_%d: invalid CID count %d\n", cid_count); > + goto fail_init; > } > > + phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode & > + BEISCSI_FUNC_DUA_MODE); > + > + beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, > + "BG_%d : DUA Mode : 0x%x\n", > + phba->fw_config.dual_ulp_aware); > + > + /* all set, continue using this FW config */ > + status = 0; > +fail_init: > mutex_unlock(&ctrl->mbox_lock); > return status; > } > Shouldn't that be 'DUAL mode' ? But then, even the original had 'DUA'. So no need to redo the patch for that. Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
