[SCSI] lpfc 8.3.24: Add request-firmware support
Add request-firmware support:
- Add support for request_firmware interface for INTF2 SLI4 ports.
- Add ability to reset SLI4 INTF2 ports.
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index e81912c..2b535cf 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_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 @@
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 @@
/* 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);