diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 177 |
1 files changed, 35 insertions, 142 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index e9fa6762044..32f8dac6abf 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -116,6 +116,27 @@ lpfc_debug_save_dif(struct scsi_cmnd *cmnd) } /** + * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. + * @phba: Pointer to HBA object. + * @lpfc_cmd: lpfc scsi command object pointer. + * + * This function is called from the lpfc_prep_task_mgmt_cmd function to + * set the last bit in the response sge entry. + **/ +static void +lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, + struct lpfc_scsi_buf *lpfc_cmd) +{ + struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; + if (sgl) { + sgl += 1; + sgl->word2 = le32_to_cpu(sgl->word2); + bf_set(lpfc_sli4_sge_last, sgl, 1); + sgl->word2 = cpu_to_le32(sgl->word2); + } +} + +/** * lpfc_update_stats - Update statistical data for the command completion * @phba: Pointer to HBA object. * @lpfc_cmd: lpfc scsi command object pointer. @@ -1978,7 +1999,7 @@ lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, } /** - * lpfc_scsi_unprep_dma_buf_s3 - Un-map DMA mapping of SG-list for SLI3 dev + * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev * @phba: The HBA for which this call is being executed. * @psb: The scsi buffer which is going to be un-mapped. * @@ -1986,7 +2007,7 @@ lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, * field of @lpfc_cmd for device with SLI-3 interface spec. **/ static void -lpfc_scsi_unprep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) +lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) { /* * There are only two special cases to consider. (1) the scsi command @@ -2003,36 +2024,6 @@ lpfc_scsi_unprep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) } /** - * lpfc_scsi_unprep_dma_buf_s4 - Un-map DMA mapping of SG-list for SLI4 dev - * @phba: The Hba for which this call is being executed. - * @psb: The scsi buffer which is going to be un-mapped. - * - * This routine does DMA un-mapping of scatter gather list of scsi command - * field of @lpfc_cmd for device with SLI-4 interface spec. If we have to - * remove the sgl for this scsi buffer then we will do it here. For now - * we should be able to just call the sli3 unprep routine. - **/ -static void -lpfc_scsi_unprep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) -{ - lpfc_scsi_unprep_dma_buf_s3(phba, psb); -} - -/** - * lpfc_scsi_unprep_dma_buf - Wrapper function for unmap DMA mapping of SG-list - * @phba: The Hba for which this call is being executed. - * @psb: The scsi buffer which is going to be un-mapped. - * - * This routine does DMA un-mapping of scatter gather list of scsi command - * field of @lpfc_cmd for device with SLI-4 interface spec. - **/ -static void -lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) -{ - phba->lpfc_scsi_unprep_dma_buf(phba, psb); -} - -/** * lpfc_handler_fcp_err - FCP response handler * @vport: The virtual port for which this call is being executed. * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. @@ -2461,7 +2452,7 @@ lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) } /** - * lpfc_scsi_prep_cmnd_s3 - Convert scsi cmnd to FCP infor unit for SLI3 dev + * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit * @vport: The virtual port for which this call is being executed. * @lpfc_cmd: The scsi command which needs to send. * @pnode: Pointer to lpfc_nodelist. @@ -2470,7 +2461,7 @@ lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) * to transfer for device with SLI3 interface spec. **/ static void -lpfc_scsi_prep_cmnd_s3(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, +lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_nodelist *pnode) { struct lpfc_hba *phba = vport->phba; @@ -2558,46 +2549,7 @@ lpfc_scsi_prep_cmnd_s3(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, } /** - * lpfc_scsi_prep_cmnd_s4 - Convert scsi cmnd to FCP infor unit for SLI4 dev - * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: The scsi command which needs to send. - * @pnode: Pointer to lpfc_nodelist. - * - * This routine initializes fcp_cmnd and iocb data structure from scsi command - * to transfer for device with SLI4 interface spec. - **/ -static void -lpfc_scsi_prep_cmnd_s4(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, - struct lpfc_nodelist *pnode) -{ - /* - * The prep cmnd routines do not touch the sgl or its - * entries. We may not have to do anything different. - * I will leave this function in place until we can - * run some IO through the driver and determine if changes - * are needed. - */ - return lpfc_scsi_prep_cmnd_s3(vport, lpfc_cmd, pnode); -} - -/** - * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit - * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: The scsi command which needs to send. - * @pnode: Pointer to lpfc_nodelist. - * - * This routine wraps the actual convert SCSI cmnd function pointer from - * the lpfc_hba struct. - **/ -static inline void -lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, - struct lpfc_nodelist *pnode) -{ - vport->phba->lpfc_scsi_prep_cmnd(vport, lpfc_cmd, pnode); -} - -/** - * lpfc_scsi_prep_task_mgmt_cmnd_s3 - Convert SLI3 scsi TM cmd to FCP info unit + * lpfc_scsi_prep_task_mgmt_cmnd - Convert SLI3 scsi TM cmd to FCP info unit * @vport: The virtual port for which this call is being executed. * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. * @lun: Logical unit number. @@ -2611,7 +2563,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, * 1 - Success **/ static int -lpfc_scsi_prep_task_mgmt_cmd_s3(struct lpfc_vport *vport, +lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, unsigned int lun, uint8_t task_mgmt_cmd) @@ -2653,68 +2605,13 @@ lpfc_scsi_prep_task_mgmt_cmd_s3(struct lpfc_vport *vport, * The driver will provide the timeout mechanism. */ piocb->ulpTimeout = 0; - } else { + } else piocb->ulpTimeout = lpfc_cmd->timeout; - } - - return 1; -} - -/** - * lpfc_scsi_prep_task_mgmt_cmnd_s4 - Convert SLI4 scsi TM cmd to FCP info unit - * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. - * @lun: Logical unit number. - * @task_mgmt_cmd: SCSI task management command. - * - * This routine creates FCP information unit corresponding to @task_mgmt_cmd - * for device with SLI-4 interface spec. - * - * Return codes: - * 0 - Error - * 1 - Success - **/ -static int -lpfc_scsi_prep_task_mgmt_cmd_s4(struct lpfc_vport *vport, - struct lpfc_scsi_buf *lpfc_cmd, - unsigned int lun, - uint8_t task_mgmt_cmd) -{ - /* - * The prep cmnd routines do not touch the sgl or its - * entries. We may not have to do anything different. - * I will leave this function in place until we can - * run some IO through the driver and determine if changes - * are needed. - */ - return lpfc_scsi_prep_task_mgmt_cmd_s3(vport, lpfc_cmd, lun, - task_mgmt_cmd); -} -/** - * lpfc_scsi_prep_task_mgmt_cmnd - Wrapper func convert scsi TM cmd to FCP info - * @vport: The virtual port for which this call is being executed. - * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. - * @lun: Logical unit number. - * @task_mgmt_cmd: SCSI task management command. - * - * This routine wraps the actual convert SCSI TM to FCP information unit - * function pointer from the lpfc_hba struct. - * - * Return codes: - * 0 - Error - * 1 - Success - **/ -static inline int -lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, - struct lpfc_scsi_buf *lpfc_cmd, - unsigned int lun, - uint8_t task_mgmt_cmd) -{ - struct lpfc_hba *phba = vport->phba; + if (vport->phba->sli_rev == LPFC_SLI_REV4) + lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); - return phba->lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun, - task_mgmt_cmd); + return 1; } /** @@ -2730,23 +2627,19 @@ int lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) { + phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; + phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; + phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf; + switch (dev_grp) { case LPFC_PCI_DEV_LP: phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s3; phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; - phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd_s3; - phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf_s3; - phba->lpfc_scsi_prep_task_mgmt_cmd = - lpfc_scsi_prep_task_mgmt_cmd_s3; phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; break; case LPFC_PCI_DEV_OC: phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4; phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; - phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd_s4; - phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf_s4; - phba->lpfc_scsi_prep_task_mgmt_cmd = - lpfc_scsi_prep_task_mgmt_cmd_s4; phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; break; default: |