[SCSI] qla2xxx: Consolidate firmware-dump handling across ISPs.

Simplify and centralise buffer allocation/deallocation, as
there's no point in having two memory request methods.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

5 files changed, 43 insertions, 62 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index fee0c493775b..e96d58ded57c 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -46,22 +46,16 @@ qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off,
         case 0:
                 if (ha->fw_dump_reading == 1) {
                         qla_printk(KERN_INFO, ha,
-                            "Firmware dump cleared on (%ld).\n",
-                            ha->host_no);
+                            "Firmware dump cleared on (%ld).\n", ha->host_no);
 
                         vfree(ha->fw_dump_buffer);
-                        if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
-                                free_pages((unsigned long)ha->fw_dump,
-                                    ha->fw_dump_order);
-
-                        ha->fw_dump_reading = 0;
                         ha->fw_dump_buffer = NULL;
-                        ha->fw_dump = NULL;
+                        ha->fw_dump_reading = 0;
                         ha->fw_dumped = 0;
                 }
                 break;
         case 1:
-                if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) {
+                if (ha->fw_dumped && !ha->fw_dump_reading) {
                         ha->fw_dump_reading = 1;
 
                         if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index e8120fb7f88e..74e54713aa7c 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -28,7 +28,7 @@ qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         uint16_t __iomem *dmp_reg;
         unsigned long   flags;
         struct qla2300_fw_dump  *fw;
-        uint32_t        dump_size, data_ram_cnt;
+        uint32_t        data_ram_cnt;
 
         risc_address = data_ram_cnt = 0;
         mb0 = mb2 = 0;
@@ -37,23 +37,16 @@ qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         if (!hardware_locked)
                 spin_lock_irqsave(&ha->hardware_lock, flags);
 
-        if (ha->fw_dump != NULL) {
+        if (!ha->fw_dump) {
                 qla_printk(KERN_WARNING, ha,
-                    "Firmware has been previously dumped (%p) -- ignoring "
-                    "request...\n", ha->fw_dump);
+                    "No buffer available for dump!!!\n");
                 goto qla2300_fw_dump_failed;
         }
 
-        /* Allocate (large) dump buffer. */
-        dump_size = sizeof(struct qla2300_fw_dump);
-        dump_size += (ha->fw_memory_size - 0x11000) * sizeof(uint16_t);
-        ha->fw_dump_order = get_order(dump_size);
-        ha->fw_dump = (struct qla2300_fw_dump *) __get_free_pages(GFP_ATOMIC,
-            ha->fw_dump_order);
-        if (ha->fw_dump == NULL) {
+        if (ha->fw_dumped) {
                 qla_printk(KERN_WARNING, ha,
-                    "Unable to allocated memory for firmware dump (%d/%d).\n",
-                    ha->fw_dump_order, dump_size);
+                    "Firmware has been previously dumped (%p) -- ignoring "
+                    "request...\n", ha->fw_dump);
                 goto qla2300_fw_dump_failed;
         }
         fw = ha->fw_dump;
@@ -358,17 +351,16 @@ qla2300_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
                 }
         }
 
-
         if (rval != QLA_SUCCESS) {
                 qla_printk(KERN_WARNING, ha,
                     "Failed to dump firmware (%x)!!!\n", rval);
+                ha->fw_dumped = 0;
 
-                free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
-                ha->fw_dump = NULL;
         } else {
                 qla_printk(KERN_INFO, ha,
                     "Firmware dump saved to temp buffer (%ld/%p).\n",
                     ha->host_no, ha->fw_dump);
+                ha->fw_dumped = 1;
         }
 
 qla2300_fw_dump_failed:
@@ -587,21 +579,16 @@ qla2100_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         if (!hardware_locked)
                 spin_lock_irqsave(&ha->hardware_lock, flags);
 
-        if (ha->fw_dump != NULL) {
+        if (!ha->fw_dump) {
                 qla_printk(KERN_WARNING, ha,
-                    "Firmware has been previously dumped (%p) -- ignoring "
-                    "request...\n", ha->fw_dump);
+                    "No buffer available for dump!!!\n");
                 goto qla2100_fw_dump_failed;
         }
 
-        /* Allocate (large) dump buffer. */
-        ha->fw_dump_order = get_order(sizeof(struct qla2100_fw_dump));
-        ha->fw_dump = (struct qla2100_fw_dump *) __get_free_pages(GFP_ATOMIC,
-            ha->fw_dump_order);
-        if (ha->fw_dump == NULL) {
+        if (ha->fw_dumped) {
                 qla_printk(KERN_WARNING, ha,
-                    "Unable to allocated memory for firmware dump (%d/%Zd).\n",
-                    ha->fw_dump_order, sizeof(struct qla2100_fw_dump));
+                    "Firmware has been previously dumped (%p) -- ignoring "
+                    "request...\n", ha->fw_dump);
                 goto qla2100_fw_dump_failed;
         }
         fw = ha->fw_dump;
@@ -777,13 +764,13 @@ qla2100_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         if (rval != QLA_SUCCESS) {
                 qla_printk(KERN_WARNING, ha,
                     "Failed to dump firmware (%x)!!!\n", rval);
+                ha->fw_dumped = 0;
 
-                free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
-                ha->fw_dump = NULL;
         } else {
                 qla_printk(KERN_INFO, ha,
                     "Firmware dump saved to temp buffer (%ld/%p).\n",
                     ha->host_no, ha->fw_dump);
+                ha->fw_dumped = 1;
         }
 
 qla2100_fw_dump_failed:
@@ -988,7 +975,7 @@ qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         if (!hardware_locked)
                 spin_lock_irqsave(&ha->hardware_lock, flags);
 
-        if (!ha->fw_dump24) {
+        if (!ha->fw_dump) {
                 qla_printk(KERN_WARNING, ha,
                     "No buffer available for dump!!!\n");
                 goto qla24xx_fw_dump_failed;
@@ -997,10 +984,10 @@ qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         if (ha->fw_dumped) {
                 qla_printk(KERN_WARNING, ha,
                     "Firmware has been previously dumped (%p) -- ignoring "
-                    "request...\n", ha->fw_dump24);
+                    "request...\n", ha->fw_dump);
                 goto qla24xx_fw_dump_failed;
         }
-        fw = (struct qla24xx_fw_dump *) ha->fw_dump24;
+        fw = ha->fw_dump;
 
         rval = QLA_SUCCESS;
         fw->host_status = RD_REG_DWORD(&reg->host_status);
@@ -1654,7 +1641,7 @@ qla24xx_fw_dump(scsi_qla_host_t *ha, int hardware_locked)
         } else {
                 qla_printk(KERN_INFO, ha,
                     "Firmware dump saved to temp buffer (%ld/%p).\n",
-                    ha->host_no, ha->fw_dump24);
+                    ha->host_no, ha->fw_dump);
                 ha->fw_dumped = 1;
         }
 
@@ -1672,7 +1659,7 @@ qla24xx_ascii_fw_dump(scsi_qla_host_t *ha)
         uint32_t ext_mem_cnt;
 
         uiter = ha->fw_dump_buffer;
-        fw = ha->fw_dump24;
+        fw = ha->fw_dump;
 
         qla_uprintf(&uiter, "ISP FW Version %d.%02d.%02d Attributes %04x\n",
             ha->fw_major_version, ha->fw_minor_version,
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 30a931979889..d6f6579cfd27 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2304,15 +2304,11 @@ typedef struct scsi_qla_host {
 
         /* Firmware dump information. */
         void            *fw_dump;
-        int             fw_dump_order;
+        int             fw_dumped;
         int             fw_dump_reading;
         char            *fw_dump_buffer;
         int             fw_dump_buffer_len;
 
-        int             fw_dumped;
-        void            *fw_dump24;
-        int             fw_dump24_len;
-
         uint8_t         host_str[16];
         uint32_t        pci_attr;
 
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 748be95c51a7..011e8795545a 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -773,16 +773,26 @@ qla24xx_chip_diag(scsi_qla_host_t *ha)
 static void
 qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 {
+        uint32_t dump_size = 0;
+
         ha->fw_dumped = 0;
-        ha->fw_dump24_len = sizeof(struct qla24xx_fw_dump);
-        ha->fw_dump24_len += (ha->fw_memory_size - 0x100000) * sizeof(uint32_t);
-        ha->fw_dump24 = vmalloc(ha->fw_dump24_len);
-        if (ha->fw_dump24)
+        if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
+                dump_size = sizeof(struct qla2100_fw_dump);
+        } else if (IS_QLA23XX(ha)) {
+                dump_size = sizeof(struct qla2300_fw_dump);
+                dump_size += (ha->fw_memory_size - 0x11000) * sizeof(uint16_t);
+        } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
+                dump_size = sizeof(struct qla24xx_fw_dump);
+                dump_size += (ha->fw_memory_size - 0x100000) * sizeof(uint32_t);
+        }
+
+        ha->fw_dump = vmalloc(dump_size);
+        if (ha->fw_dump)
                 qla_printk(KERN_INFO, ha, "Allocated (%d KB) for firmware "
-                    "dump...\n", ha->fw_dump24_len / 1024);
+                    "dump...\n", dump_size / 1024);
         else
                 qla_printk(KERN_WARNING, ha, "Unable to allocate (%d KB) for "
-                    "firmware dump!!!\n", ha->fw_dump24_len / 1024);
+                    "firmware dump!!!\n", dump_size / 1024);
 }
 
 /**
@@ -800,13 +810,12 @@ qla2x00_resize_request_q(scsi_qla_host_t *ha)
         dma_addr_t request_dma;
         request_t *request_ring;
 
+        qla2x00_alloc_fw_dump(ha);
+
         /* Valid only on recent ISPs. */
         if (IS_QLA2100(ha) || IS_QLA2200(ha))
                 return;
 
-        if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
-                qla2x00_alloc_fw_dump(ha);
-
         /* Retrieve IOCB counts available to the firmware. */
         rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
         if (rval)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index b6adc8a9d4c8..1052528c3109 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2068,15 +2068,10 @@ qla2x00_mem_free(scsi_qla_host_t *ha)
         }
         INIT_LIST_HEAD(&ha->fcports);
 
-        if (ha->fw_dump)
-                free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
-
-        vfree(ha->fw_dump24);
-
+        vfree(ha->fw_dump);
         vfree(ha->fw_dump_buffer);
 
         ha->fw_dump = NULL;
-        ha->fw_dump24 = NULL;
         ha->fw_dumped = 0;
         ha->fw_dump_reading = 0;
         ha->fw_dump_buffer = NULL;