From: Andrew Vasquez Date: Thu, 20 Sep 2007 21:07:33 +0000 (-0700) Subject: [SCSI] qla2xxx: Add flash burst-read/write support. X-Git-Tag: v2.6.24-rc1~1290^2~97 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=338c9161e406591afbc1a6635a68d3b6d5362e00;p=linux-2.6-omap-h63xx.git [SCSI] qla2xxx: Add flash burst-read/write support. Newer ISPs support a mechanism to read and write flash-memory via the firmware LOAD/DUMP memory mailbox command routines. When supported, utilizing these mechanisms significantly reduces overall access times. Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index aa1e4115228..e8122e8444c 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -133,6 +133,9 @@ int __qla2x00_marker(scsi_qla_host_t *, uint16_t, uint16_t, uint8_t); extern int qla2x00_load_ram(scsi_qla_host_t *, dma_addr_t, uint32_t, uint32_t); +extern int +qla2x00_dump_ram(scsi_qla_host_t *, dma_addr_t, uint32_t, uint32_t); + extern int qla2x00_execute_fw(scsi_qla_host_t *, uint32_t); @@ -302,6 +305,8 @@ extern uint8_t *qla24xx_read_optrom_data(struct scsi_qla_host *, uint8_t *, uint32_t, uint32_t); extern int qla24xx_write_optrom_data(struct scsi_qla_host *, uint8_t *, uint32_t, uint32_t); +extern uint8_t *qla25xx_read_optrom_data(struct scsi_qla_host *, uint8_t *, + uint32_t, uint32_t); extern int qla2x00_get_flash_version(scsi_qla_host_t *, void *); extern int qla24xx_get_flash_version(scsi_qla_host_t *, void *); diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index d3746ec80a8..e4f4b1fc2b2 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -2980,3 +2980,51 @@ qla2x00_send_change_request(scsi_qla_host_t *ha, uint16_t format, return rval; } + +int +qla2x00_dump_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint32_t addr, + uint32_t size) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no)); + + if (MSW(addr) || IS_FWI2_CAPABLE(ha)) { + mcp->mb[0] = MBC_DUMP_RISC_RAM_EXTENDED; + mcp->mb[8] = MSW(addr); + mcp->out_mb = MBX_8|MBX_0; + } else { + mcp->mb[0] = MBC_DUMP_RISC_RAM; + mcp->out_mb = MBX_0; + } + mcp->mb[1] = LSW(addr); + mcp->mb[2] = MSW(req_dma); + mcp->mb[3] = LSW(req_dma); + mcp->mb[6] = MSW(MSD(req_dma)); + mcp->mb[7] = LSW(MSD(req_dma)); + mcp->out_mb |= MBX_7|MBX_6|MBX_3|MBX_2|MBX_1; + if (IS_FWI2_CAPABLE(ha)) { + mcp->mb[4] = MSW(size); + mcp->mb[5] = LSW(size); + mcp->out_mb |= MBX_5|MBX_4; + } else { + mcp->mb[4] = LSW(size); + mcp->out_mb |= MBX_4; + } + + mcp->in_mb = MBX_0; + mcp->tov = 30; + mcp->flags = 0; + rval = qla2x00_mailbox_command(ha, mcp); + + if (rval != QLA_SUCCESS) { + DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x.\n", __func__, + ha->host_no, rval, mcp->mb[0])); + } else { + DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no)); + } + + return rval; +} diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index acca898ce0a..2a03400b6f7 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1384,7 +1384,7 @@ static struct isp_operations qla25xx_isp_ops = { .beacon_on = qla24xx_beacon_on, .beacon_off = qla24xx_beacon_off, .beacon_blink = qla24xx_beacon_blink, - .read_optrom = qla24xx_read_optrom_data, + .read_optrom = qla25xx_read_optrom_data, .write_optrom = qla24xx_write_optrom_data, .get_flash_version = qla24xx_get_flash_version, }; diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c index a925a3f179f..ad3d1de51d8 100644 --- a/drivers/scsi/qla2xxx/qla_sup.c +++ b/drivers/scsi/qla2xxx/qla_sup.c @@ -425,6 +425,9 @@ qla2x00_set_nvram_protection(scsi_qla_host_t *ha, int stat) /* Flash Manipulation Routines */ /*****************************************************************************/ +#define OPTROM_BURST_SIZE 0x1000 +#define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4) + static inline uint32_t flash_conf_to_access_addr(uint32_t faddr) { @@ -544,41 +547,59 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, uint32_t dwords) { int ret; - uint32_t liter; - uint32_t sec_mask, rest_addr, conf_addr, sec_end_mask; + uint32_t liter, miter; + uint32_t sec_mask, rest_addr, conf_addr; uint32_t fdata, findex ; uint8_t man_id, flash_id; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; + dma_addr_t optrom_dma; + void *optrom = NULL; + uint32_t *s, *d; ret = QLA_SUCCESS; + /* Prepare burst-capable write on supported ISPs. */ + if (IS_QLA25XX(ha) && !(faddr & ~OPTROM_BURST_SIZE) && + dwords > OPTROM_BURST_DWORDS) { + optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, + &optrom_dma, GFP_KERNEL); + if (!optrom) { + qla_printk(KERN_DEBUG, ha, + "Unable to allocate memory for optrom burst write " + "(%x KB).\n", OPTROM_BURST_SIZE / 1024); + } + } + 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)); - sec_end_mask = 0; conf_addr = flash_conf_to_access_addr(0x03d8); switch (man_id) { case 0xbf: /* STT flash. */ - rest_addr = 0x1fff; - sec_mask = 0x3e000; + 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 = 0x3c000; + sec_mask = 0x7c000; break; case 0x1f: // Atmel 26DF081A - rest_addr = 0x0fff; - sec_mask = 0xff000; - sec_end_mask = 0x003ff; + 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 = 0x3c000; + sec_mask = 0x7c000; break; } @@ -592,56 +613,81 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, /* Some flash parts need an additional zero-write to clear bits.*/ qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0); - do { /* Loop once to provide quick error exit. */ - for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) { - if (man_id == 0x1f) { - findex = faddr << 2; - fdata = findex & sec_mask; - } else { - findex = faddr; - fdata = (findex & sec_mask) << 2; - } + for (liter = 0; liter < dwords; liter++, faddr++, dwptr++) { + if (man_id == 0x1f) { + findex = faddr << 2; + fdata = findex & sec_mask; + } else { + findex = faddr; + fdata = (findex & sec_mask) << 2; + } - /* 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) - qla24xx_write_flash_dword(ha, - flash_conf_to_access_addr(0x0339), - (fdata & 0xff00) | ((fdata << 16) & - 0xff0000) | ((fdata >> 16) & 0xff)); - ret = qla24xx_write_flash_dword(ha, conf_addr, - (fdata & 0xff00) |((fdata << 16) & + /* 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) + qla24xx_write_flash_dword(ha, + flash_conf_to_access_addr(0x0339), + (fdata & 0xff00) | ((fdata << 16) & 0xff0000) | ((fdata >> 16) & 0xff)); - if (ret != QLA_SUCCESS) { - DEBUG9(printk("%s(%ld) Unable to flash " - "sector: address=%x.\n", __func__, - ha->host_no, faddr)); - break; - } + ret = qla24xx_write_flash_dword(ha, conf_addr, + (fdata & 0xff00) |((fdata << 16) & + 0xff0000) | ((fdata >> 16) & 0xff)); + if (ret != QLA_SUCCESS) { + DEBUG9(printk("%s(%ld) Unable to flash " + "sector: address=%x.\n", __func__, + ha->host_no, faddr)); + break; } - ret = qla24xx_write_flash_dword(ha, + } + + /* Go with burst-write. */ + if (optrom && (liter + OPTROM_BURST_DWORDS) < dwords) { + /* Copy data to DMA'ble buffer. */ + for (miter = 0, s = optrom, d = dwptr; + miter < OPTROM_BURST_DWORDS; miter++, s++, d++) + *s = cpu_to_le32(*d); + + ret = qla2x00_load_ram(ha, optrom_dma, flash_data_to_access_addr(faddr), - cpu_to_le32(*dwptr)); + OPTROM_BURST_DWORDS); if (ret != QLA_SUCCESS) { - DEBUG9(printk("%s(%ld) Unable to program flash " - "address=%x data=%x.\n", __func__, - ha->host_no, faddr, *dwptr)); - break; + qla_printk(KERN_WARNING, ha, + "Unable to burst-write optrom segment " + "(%x/%x/%llx).\n", ret, + flash_data_to_access_addr(faddr), + optrom_dma); + qla_printk(KERN_WARNING, ha, + "Reverting to slow-write.\n"); + + dma_free_coherent(&ha->pdev->dev, + OPTROM_BURST_SIZE, optrom, optrom_dma); + optrom = NULL; + } else { + liter += OPTROM_BURST_DWORDS - 1; + faddr += OPTROM_BURST_DWORDS - 1; + dwptr += OPTROM_BURST_DWORDS - 1; + continue; } + } - /* Do sector protect at 4K boundry for Atmel part. */ - if (man_id == 0x1f && - ((faddr & sec_end_mask) == 0x3ff)) - qla24xx_write_flash_dword(ha, - flash_conf_to_access_addr(0x0336), - (fdata & 0xff00) | ((fdata << 16) & - 0xff0000) | ((fdata >> 16) & 0xff)); + ret = qla24xx_write_flash_dword(ha, + flash_data_to_access_addr(faddr), cpu_to_le32(*dwptr)); + if (ret != QLA_SUCCESS) { + DEBUG9(printk("%s(%ld) Unable to program flash " + "address=%x data=%x.\n", __func__, + ha->host_no, faddr, *dwptr)); + break; } - } while (0); + + /* Do sector protect at 4K boundry for Atmel part. */ + if (man_id == 0x1f && + ((faddr & rest_addr) == rest_addr)) + qla24xx_write_flash_dword(ha, + flash_conf_to_access_addr(0x0336), + (fdata & 0xff00) | ((fdata << 16) & + 0xff0000) | ((fdata >> 16) & 0xff)); + } /* Enable flash write-protection. */ qla24xx_write_flash_dword(ha, flash_conf_to_access_addr(0x101), 0x9c); @@ -651,6 +697,10 @@ qla24xx_write_flash_data(scsi_qla_host_t *ha, uint32_t *dwptr, uint32_t faddr, RD_REG_DWORD(®->ctrl_status) & ~CSRX_FLASH_ENABLE); RD_REG_DWORD(®->ctrl_status); /* PCI Posting. */ + if (optrom) + dma_free_coherent(&ha->pdev->dev, + OPTROM_BURST_SIZE, optrom, optrom_dma); + return ret; } @@ -1728,7 +1778,6 @@ qla24xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, { /* Suspend HBA. */ scsi_block_requests(ha->host); - ha->isp_ops->disable_intrs(ha); set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); /* Go with read. */ @@ -1736,7 +1785,6 @@ qla24xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, /* Resume HBA. */ clear_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); - ha->isp_ops->enable_intrs(ha); scsi_unblock_requests(ha->host); return buf; @@ -1750,7 +1798,6 @@ qla24xx_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, /* Suspend HBA. */ scsi_block_requests(ha->host); - ha->isp_ops->disable_intrs(ha); set_bit(MBX_UPDATE_FLASH_ACTIVE, &ha->mbx_cmd_flags); /* Go with write. */ @@ -1767,6 +1814,70 @@ qla24xx_write_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, return rval; } +uint8_t * +qla25xx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, + uint32_t offset, uint32_t length) +{ + int rval; + dma_addr_t optrom_dma; + void *optrom; + uint8_t *pbuf; + uint32_t faddr, left, burst; + + if (offset & ~OPTROM_BURST_SIZE) + goto slow_read; + if (length < OPTROM_BURST_SIZE) + goto slow_read; + + optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, + &optrom_dma, GFP_KERNEL); + if (!optrom) { + qla_printk(KERN_DEBUG, ha, + "Unable to allocate memory for optrom burst read " + "(%x KB).\n", OPTROM_BURST_SIZE / 1024); + + goto slow_read; + } + + pbuf = buf; + faddr = offset >> 2; + left = length >> 2; + burst = OPTROM_BURST_DWORDS; + while (left != 0) { + if (burst > left) + burst = left; + + rval = qla2x00_dump_ram(ha, optrom_dma, + flash_data_to_access_addr(faddr), burst); + if (rval) { + qla_printk(KERN_WARNING, ha, + "Unable to burst-read optrom segment " + "(%x/%x/%llx).\n", rval, + flash_data_to_access_addr(faddr), optrom_dma); + qla_printk(KERN_WARNING, ha, + "Reverting to slow-read.\n"); + + dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, + optrom, optrom_dma); + goto slow_read; + } + + memcpy(pbuf, optrom, burst * 4); + + left -= burst; + faddr += burst; + pbuf += burst * 4; + } + + dma_free_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE, optrom, + optrom_dma); + + return buf; + +slow_read: + return qla24xx_read_optrom_data(ha, buf, offset, length); +} + /** * qla2x00_get_fcode_version() - Determine an FCODE image's version. * @ha: HA context