[SCSI] qla2xxx: Add Flash Descriptor Table layout support.
The Flash Descriptor Table (FDT) present on many recent HBAs
encodes flash accessing characteristics of the flash-part used on
the HBA. Use this information during flash manipulation (writes)
rather than using specific hard-coded values based on queried
manufacturer and device IDs.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 047973f..7e6b6da 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2521,6 +2521,13 @@
uint8_t fcode_revision[16];
uint32_t fw_revision[4];
+ uint16_t fdt_odd_index;
+ uint32_t fdt_wrt_disable;
+ uint32_t fdt_erase_cmd;
+ uint32_t fdt_block_size;
+ uint32_t fdt_unprotect_sec_cmd;
+ uint32_t fdt_protect_sec_cmd;
+
/* Needed for BEACON */
uint16_t beacon_blink_led;
uint8_t beacon_color_state;
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 5d19b0e..38adc0f 100644
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -1186,4 +1186,36 @@
};
/* END MID Support ***********************************************************/
+
+/* Flash Description Table ***************************************************/
+
+struct qla_fdt_layout {
+ uint8_t sig[4];
+ uint16_t version;
+ uint16_t len;
+ uint16_t checksum;
+ uint8_t unused1[2];
+ uint8_t model[16];
+ uint16_t man_id;
+ uint16_t id;
+ uint8_t flags;
+ uint8_t erase_cmd;
+ uint8_t alt_erase_cmd;
+ uint8_t wrt_enable_cmd;
+ uint8_t wrt_enable_bits;
+ uint8_t wrt_sts_reg_cmd;
+ uint8_t unprotect_sec_cmd;
+ uint8_t read_man_id_cmd;
+ uint32_t block_size;
+ uint32_t alt_block_size;
+ uint32_t flash_size;
+ uint32_t wrt_enable_data;
+ uint8_t read_id_addr_len;
+ uint8_t wrt_disable_bits;
+ uint8_t read_dev_id_len;
+ uint8_t chip_erase_cmd;
+ uint16_t read_timeout;
+ uint8_t protect_sec_cmd;
+ uint8_t unused2[65];
+};
#endif
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 10c3f90..f25aa63 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -300,6 +300,8 @@
extern int qla2xxx_hw_event_log(scsi_qla_host_t *, uint16_t , uint16_t,
uint16_t, uint16_t);
+extern void qla2xxx_get_flash_info(scsi_qla_host_t *);
+
/*
* Global Function Prototypes in qla_dbg.c source file.
*/
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index d429e2f..10e6995 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -106,6 +106,7 @@
rval = qla2x00_setup_chip(ha);
if (rval)
return (rval);
+ qla2xxx_get_flash_info(ha);
}
rval = qla2x00_init_rings(ha);
diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c
index c10ccc7..eda11f6 100644
--- a/drivers/scsi/qla2xxx/qla_sup.c
+++ b/drivers/scsi/qla2xxx/qla_sup.c
@@ -543,6 +543,96 @@
}
}
+void
+qla2xxx_get_flash_info(scsi_qla_host_t *ha)
+{
+#define FLASH_BLK_SIZE_32K 0x8000
+#define FLASH_BLK_SIZE_64K 0x10000
+ uint16_t cnt, chksum;
+ uint16_t *wptr;
+ struct qla_fdt_layout *fdt;
+ uint8_t man_id, flash_id;
+
+ if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha))
+ return;
+
+ wptr = (uint16_t *)ha->request_ring;
+ fdt = (struct qla_fdt_layout *)ha->request_ring;
+ ha->isp_ops->read_optrom(ha, (uint8_t *)ha->request_ring,
+ FA_FLASH_DESCR_ADDR << 2, OPTROM_BURST_SIZE);
+ if (*wptr == __constant_cpu_to_le16(0xffff))
+ goto no_flash_data;
+ if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
+ fdt->sig[3] != 'D')
+ goto no_flash_data;
+
+ for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
+ cnt++)
+ chksum += le16_to_cpu(*wptr++);
+ if (chksum) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
+ "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
+ le16_to_cpu(fdt->version)));
+ DEBUG9(qla2x00_dump_buffer((uint8_t *)fdt, sizeof(*fdt)));
+ goto no_flash_data;
+ }
+
+ ha->fdt_odd_index = le16_to_cpu(fdt->man_id) == 0x1f;
+ ha->fdt_wrt_disable = fdt->wrt_disable_bits;
+ ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0300 | fdt->erase_cmd);
+ ha->fdt_block_size = le32_to_cpu(fdt->block_size);
+ if (fdt->unprotect_sec_cmd) {
+ ha->fdt_unprotect_sec_cmd = flash_conf_to_access_addr(0x0300 |
+ fdt->unprotect_sec_cmd);
+ ha->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
+ flash_conf_to_access_addr(0x0300 | fdt->protect_sec_cmd):
+ flash_conf_to_access_addr(0x0336);
+ }
+
+ DEBUG2(qla_printk(KERN_DEBUG, ha, "Flash[FDT]: (0x%x/0x%x) erase=0x%x "
+ "pro=%x upro=%x idx=%d wrtd=0x%x blk=0x%x.\n",
+ le16_to_cpu(fdt->man_id), le16_to_cpu(fdt->id), ha->fdt_erase_cmd,
+ ha->fdt_protect_sec_cmd, ha->fdt_unprotect_sec_cmd,
+ ha->fdt_odd_index, ha->fdt_wrt_disable, ha->fdt_block_size));
+ return;
+
+no_flash_data:
+ qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
+ ha->fdt_wrt_disable = 0x9c;
+ ha->fdt_erase_cmd = flash_conf_to_access_addr(0x03d8);
+ switch (man_id) {
+ case 0xbf: /* STT flash. */
+ if (flash_id == 0x8e)
+ ha->fdt_block_size = FLASH_BLK_SIZE_64K;
+ else
+ ha->fdt_block_size = FLASH_BLK_SIZE_32K;
+
+ if (flash_id == 0x80)
+ ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0352);
+ break;
+ case 0x13: /* ST M25P80. */
+ ha->fdt_block_size = FLASH_BLK_SIZE_64K;
+ break;
+ case 0x1f: /* Atmel 26DF081A. */
+ ha->fdt_odd_index = 1;
+ ha->fdt_block_size = FLASH_BLK_SIZE_64K;
+ ha->fdt_erase_cmd = flash_conf_to_access_addr(0x0320);
+ ha->fdt_unprotect_sec_cmd = flash_conf_to_access_addr(0x0339);
+ ha->fdt_protect_sec_cmd = flash_conf_to_access_addr(0x0336);
+ break;
+ default:
+ /* Default to 64 kb sector size. */
+ ha->fdt_block_size = FLASH_BLK_SIZE_64K;
+ break;
+ }
+
+ DEBUG2(qla_printk(KERN_DEBUG, ha, "Flash[MID]: (0x%x/0x%x) erase=0x%x "
+ "pro=%x upro=%x idx=%d wrtd=0x%x blk=0x%x.\n", man_id, flash_id,
+ ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
+ ha->fdt_unprotect_sec_cmd, ha->fdt_odd_index, ha->fdt_wrt_disable,
+ ha->fdt_block_size));
+}
+
static void
qla24xx_unprotect_flash(scsi_qla_host_t *ha)
{
@@ -553,6 +643,9 @@
RD_REG_DWORD(®->ctrl_status) | CSRX_FLASH_ENABLE);
RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */
+ if (!ha->fdt_wrt_disable)
+ return;
+
/* Disable flash write-protection. */
qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0);
/* Some flash parts need an additional zero-write to clear bits.*/
@@ -565,8 +658,12 @@
uint32_t cnt;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+ if (!ha->fdt_wrt_disable)
+ goto skip_wrt_protect;
+
/* Enable flash write-protection and wait for completion. */
- qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0x9c);
+ qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101),
+ ha->fdt_wrt_disable);
for (cnt = 300; cnt &&
qla24xx_read_flash_dword(ha,
flash_conf_to_access_addr(0x005)) & BIT_0;
@@ -574,6 +671,7 @@
udelay(10);
}
+skip_wrt_protect:
/* Disable flash write. */
WRT_REG_DWORD(®->ctrl_status,
RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE);
@@ -586,9 +684,8 @@
{
int ret;
uint32_t liter, miter;
- uint32_t sec_mask, rest_addr, conf_addr;
+ uint32_t sec_mask, rest_addr;
uint32_t fdata, findex;
- uint8_t man_id, flash_id;
dma_addr_t optrom_dma;
void *optrom = NULL;
uint32_t *s, *d;
@@ -607,43 +704,13 @@
}
}
- qla24xx_get_flash_manufacturer(ha, &man_id, &flash_id);
- DEBUG9(printk("%s(%ld): Flash man_id=%d flash_id=%d\n", __func__,
- ha->host_no, man_id, flash_id));
-
- conf_addr = flash_conf_to_access_addr(0x03d8);
- switch (man_id) {
- case 0xbf: /* STT flash. */
- if (flash_id == 0x8e) {
- rest_addr = 0x3fff;
- sec_mask = 0x7c000;
- } else {
- rest_addr = 0x1fff;
- sec_mask = 0x7e000;
- }
- if (flash_id == 0x80)
- conf_addr = flash_conf_to_access_addr(0x0352);
- break;
- case 0x13: /* ST M25P80. */
- rest_addr = 0x3fff;
- sec_mask = 0x7c000;
- break;
- case 0x1f: // Atmel 26DF081A
- rest_addr = 0x3fff;
- sec_mask = 0x7c000;
- conf_addr = flash_conf_to_access_addr(0x0320);
- break;
- default:
- /* Default to 64 kb sector size. */
- rest_addr = 0x3fff;
- sec_mask = 0x7c000;
- break;
- }
+ rest_addr = (ha->fdt_block_size >> 2) - 1;
+ sec_mask = 0x80000 - (ha->fdt_block_size >> 2);
qla24xx_unprotect_flash(ha);
for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) {
- if (man_id == 0x1f) {
+ if (ha->fdt_odd_index) {
findex = faddr << 2;
fdata = findex & sec_mask;
} else {
@@ -653,13 +720,13 @@
/* Are we at the beginning of a sector? */
if ((findex & rest_addr) == 0) {
- /* Do sector unprotect at 4K boundry for Atmel part. */
- if (man_id == 0x1f)
+ /* Do sector unprotect. */
+ if (ha->fdt_unprotect_sec_cmd)
qla24xx_write_flash_dword(ha,
- flash_conf_to_access_addr(0x0339),
+ ha->fdt_unprotect_sec_cmd,
(fdata & 0xff00) | ((fdata << 16) &
0xff0000) | ((fdata >> 16) & 0xff));
- ret = qla24xx_write_flash_dword(ha, conf_addr,
+ ret = qla24xx_write_flash_dword(ha, ha->fdt_erase_cmd,
(fdata & 0xff00) |((fdata << 16) &
0xff0000) | ((fdata >> 16) & 0xff));
if (ret != QLA_SUCCESS) {
@@ -709,11 +776,11 @@
break;
}
- /* Do sector protect at 4K boundry for Atmel part. */
- if (man_id == 0x1f &&
+ /* Do sector protect. */
+ if (ha->fdt_unprotect_sec_cmd &&
((faddr & rest_addr) == rest_addr))
qla24xx_write_flash_dword(ha,
- flash_conf_to_access_addr(0x0336),
+ ha->fdt_protect_sec_cmd,
(fdata & 0xff00) | ((fdata << 16) &
0xff0000) | ((fdata >> 16) & 0xff));
}