diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_init.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index e81912cd257..2b535cff4b2 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -30,6 +30,7 @@ #include <linux/ctype.h> #include <linux/aer.h> #include <linux/slab.h> +#include <linux/firmware.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> @@ -8775,6 +8776,97 @@ lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) } /** + * lpfc_write_firmware - attempt to write a firmware image to the port + * @phba: pointer to lpfc hba data structure. + * @fw: pointer to firmware image returned from request_firmware. + * + * returns the number of bytes written if write is successful. + * returns a negative error value if there were errors. + * returns 0 if firmware matches currently active firmware on port. + **/ +int +lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw) +{ + char fwrev[32]; + struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data; + struct list_head dma_buffer_list; + int i, rc = 0; + struct lpfc_dmabuf *dmabuf, *next; + uint32_t offset = 0, temp_offset = 0; + + INIT_LIST_HEAD(&dma_buffer_list); + if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) || + (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) || + (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) || + (image->size != fw->size)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3022 Invalid FW image found. " + "Magic:%d Type:%x ID:%x\n", + image->magic_number, + bf_get(lpfc_grp_hdr_file_type, image), + bf_get(lpfc_grp_hdr_id, image)); + return -EINVAL; + } + lpfc_decode_firmware_rev(phba, fwrev, 1); + if (strncmp(fwrev, image->rev_name, strnlen(fwrev, 16))) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3023 Updating Firmware. Current Version:%s " + "New Version:%s\n", + fwrev, image->rev_name); + for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { + dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), + GFP_KERNEL); + if (!dmabuf) { + rc = -ENOMEM; + goto out; + } + dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, + SLI4_PAGE_SIZE, + &dmabuf->phys, + GFP_KERNEL); + if (!dmabuf->virt) { + kfree(dmabuf); + rc = -ENOMEM; + goto out; + } + list_add_tail(&dmabuf->list, &dma_buffer_list); + } + while (offset < fw->size) { + temp_offset = offset; + list_for_each_entry(dmabuf, &dma_buffer_list, list) { + if (offset + SLI4_PAGE_SIZE > fw->size) { + temp_offset += fw->size - offset; + memcpy(dmabuf->virt, + fw->data + temp_offset, + fw->size - offset); + break; + } + temp_offset += SLI4_PAGE_SIZE; + memcpy(dmabuf->virt, fw->data + temp_offset, + SLI4_PAGE_SIZE); + } + rc = lpfc_wr_object(phba, &dma_buffer_list, + (fw->size - offset), &offset); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3024 Firmware update failed. " + "%d\n", rc); + goto out; + } + } + rc = offset; + } +out: + list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { + list_del(&dmabuf->list); + dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, + dmabuf->virt, dmabuf->phys); + kfree(dmabuf); + } + return rc; +} + +/** * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys * @pdev: pointer to PCI device * @pid: pointer to PCI device identifier @@ -8803,6 +8895,8 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) int mcnt; int adjusted_fcp_eq_count; int fcp_qidx; + const struct firmware *fw; + uint8_t file_name[16]; /* Allocate memory for HBA structure */ phba = lpfc_hba_alloc(pdev); @@ -8957,6 +9051,14 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) /* Perform post initialization setup */ lpfc_post_init_setup(phba); + /* check for firmware upgrade or downgrade */ + snprintf(file_name, 16, "%s.grp", phba->ModelName); + error = request_firmware(&fw, file_name, &phba->pcidev->dev); + if (!error) { + lpfc_write_firmware(phba, fw); + release_firmware(fw); + } + /* Check if there are static vports to be created. */ lpfc_create_static_vport(phba); |