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kernel / pub / scm / linux / kernel / git / iwlwifi / iwlwifi-next / 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 / . / drivers / scsi / qla2xxx / qla_init.c
blob: 1ab5d92c3868eb349285faf6aa7e3ceca71ae124 [file] [log] [blame]
/*
* QLOGIC LINUX SOFTWARE
*
* QLogic ISP2x00 device driver for Linux 2.6.x
* Copyright (C) 2003-2004 QLogic Corporation
* (www.qlogic.com)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
*/
#include "qla_def.h"
#include <linux/delay.h>
#include "qla_devtbl.h"
/* XXX(hch): this is ugly, but we don't want to pull in exioctl.h */
#ifndef EXT_IS_LUN_BIT_SET
#define EXT_IS_LUN_BIT_SET(P,L) \
(((P)->mask[L/8] & (0x80 >> (L%8)))?1:0)
#define EXT_SET_LUN_BIT(P,L) \
((P)->mask[L/8] |= (0x80 >> (L%8)))
#endif
/*
* QLogic ISP2x00 Hardware Support Function Prototypes.
*/
static int qla2x00_pci_config(scsi_qla_host_t *);
static int qla2x00_isp_firmware(scsi_qla_host_t *);
static void qla2x00_reset_chip(scsi_qla_host_t *);
static int qla2x00_chip_diag(scsi_qla_host_t *);
static void qla2x00_resize_request_q(scsi_qla_host_t *);
static int qla2x00_setup_chip(scsi_qla_host_t *);
static void qla2x00_init_response_q_entries(scsi_qla_host_t *);
static int qla2x00_init_rings(scsi_qla_host_t *);
static int qla2x00_fw_ready(scsi_qla_host_t *);
static int qla2x00_configure_hba(scsi_qla_host_t *);
static int qla2x00_nvram_config(scsi_qla_host_t *);
static void qla2x00_init_tgt_map(scsi_qla_host_t *);
static int qla2x00_configure_loop(scsi_qla_host_t *);
static int qla2x00_configure_local_loop(scsi_qla_host_t *);
static void qla2x00_update_fcport(scsi_qla_host_t *, fc_port_t *);
static void qla2x00_lun_discovery(scsi_qla_host_t *, fc_port_t *);
static int qla2x00_rpt_lun_discovery(scsi_qla_host_t *, fc_port_t *,
inq_cmd_rsp_t *, dma_addr_t);
static int qla2x00_report_lun(scsi_qla_host_t *, fc_port_t *);
static fc_lun_t *qla2x00_cfg_lun(scsi_qla_host_t *, fc_port_t *, uint16_t,
inq_cmd_rsp_t *, dma_addr_t);
static fc_lun_t * qla2x00_add_lun(fc_port_t *, uint16_t);
static int qla2x00_inquiry(scsi_qla_host_t *, fc_port_t *, uint16_t,
inq_cmd_rsp_t *, dma_addr_t);
static int qla2x00_configure_fabric(scsi_qla_host_t *);
static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
static int qla2x00_device_resync(scsi_qla_host_t *);
static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
uint16_t *);
static void qla2x00_config_os(scsi_qla_host_t *ha);
static uint16_t qla2x00_fcport_bind(scsi_qla_host_t *ha, fc_port_t *fcport);
static os_lun_t * qla2x00_fclun_bind(scsi_qla_host_t *, fc_port_t *,
fc_lun_t *);
static void qla2x00_lun_free(scsi_qla_host_t *, uint16_t, uint16_t);
static int qla2x00_restart_isp(scsi_qla_host_t *);
static void qla2x00_reset_adapter(scsi_qla_host_t *);
static os_tgt_t *qla2x00_tgt_alloc(scsi_qla_host_t *, uint16_t);
static os_lun_t *qla2x00_lun_alloc(scsi_qla_host_t *, uint16_t, uint16_t);
/****************************************************************************/
/* QLogic ISP2x00 Hardware Support Functions. */
/****************************************************************************/
/*
* qla2x00_initialize_adapter
* Initialize board.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_initialize_adapter(scsi_qla_host_t *ha)
{
int rval;
uint8_t restart_risc = 0;
uint8_t retry;
uint32_t wait_time;
/* Clear adapter flags. */
ha->flags.online = 0;
ha->flags.reset_active = 0;
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
atomic_set(&ha->loop_state, LOOP_DOWN);
ha->device_flags = 0;
ha->sns_retry_cnt = 0;
ha->dpc_flags = 0;
ha->failback_delay = 0;
ha->flags.management_server_logged_in = 0;
ha->marker_needed = 0;
ha->mbx_flags = 0;
ha->isp_abort_cnt = 0;
ha->beacon_blink_led = 0;
rval = qla2x00_pci_config(ha);
if (rval) {
DEBUG2(printk("scsi(%ld): Unable to configure PCI space=n",
ha->host_no));
return (rval);
}
qla2x00_reset_chip(ha);
/* Initialize target map database. */
qla2x00_init_tgt_map(ha);
qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
qla2x00_nvram_config(ha);
qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
retry = 10;
/*
* Try to configure the loop.
*/
do {
restart_risc = 0;
/* If firmware needs to be loaded */
if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
if ((rval = qla2x00_chip_diag(ha)) == QLA_SUCCESS) {
rval = qla2x00_setup_chip(ha);
}
}
if (rval == QLA_SUCCESS &&
(rval = qla2x00_init_rings(ha)) == QLA_SUCCESS) {
check_fw_ready_again:
/*
* Wait for a successful LIP up to a maximum
* of (in seconds): RISC login timeout value,
* RISC retry count value, and port down retry
* value OR a minimum of 4 seconds OR If no
* cable, only 5 seconds.
*/
rval = qla2x00_fw_ready(ha);
if (rval == QLA_SUCCESS) {
clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
/*
* Wait at most MAX_TARGET RSCNs for a stable
* link.
*/
wait_time = 256;
do {
clear_bit(LOOP_RESYNC_NEEDED,
&ha->dpc_flags);
rval = qla2x00_configure_loop(ha);
if (test_and_clear_bit(ISP_ABORT_NEEDED,
&ha->dpc_flags)) {
restart_risc = 1;
break;
}
/*
* If loop state change while we were
* discoverying devices then wait for
* LIP to complete
*/
if (atomic_read(&ha->loop_state) ==
LOOP_DOWN && retry--) {
goto check_fw_ready_again;
}
wait_time--;
} while (!atomic_read(&ha->loop_down_timer) &&
retry &&
wait_time &&
(test_bit(LOOP_RESYNC_NEEDED,
&ha->dpc_flags)));
if (wait_time == 0)
rval = QLA_FUNCTION_FAILED;
if (ha->mem_err)
restart_risc = 1;
} else if (ha->device_flags & DFLG_NO_CABLE)
/* If no cable, then all is good. */
rval = QLA_SUCCESS;
}
} while (restart_risc && retry--);
if (rval == QLA_SUCCESS) {
clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
ha->marker_needed = 1;
qla2x00_marker(ha, 0, 0, MK_SYNC_ALL);
ha->marker_needed = 0;
ha->flags.online = 1;
} else {
DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
}
return (rval);
}
/**
* qla2x00_pci_config() - Setup device PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_pci_config(scsi_qla_host_t *ha)
{
uint16_t w, mwi;
unsigned long flags = 0;
uint32_t cnt;
qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
/*
* Turn on PCI master; for system BIOSes that don't turn it on by
* default.
*/
pci_set_master(ha->pdev);
mwi = 0;
if (pci_set_mwi(ha->pdev))
mwi = PCI_COMMAND_INVALIDATE;
pci_read_config_word(ha->pdev, PCI_REVISION_ID, &ha->revision);
if (!ha->iobase)
return (QLA_FUNCTION_FAILED);
/*
* We want to respect framework's setting of PCI configuration space
* command register and also want to make sure that all bits of
* interest to us are properly set in command register.
*/
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= mwi | (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = RD_REG_WORD(&ha->iobase->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
/* PCI Specification Revision 2.3 changes */
if (IS_QLA2322(ha) || IS_QLA6322(ha))
/* Command Register - Reset Interrupt Disable. */
w &= ~PCI_COMMAND_INTX_DISABLE;
/*
* If this is a 2300 card and not 2312, reset the
* COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
* the 2310 also reports itself as a 2300 so we need to get the
* fb revision level -- a 6 indicates it really is a 2300 and
* not a 2310.
*/
if (IS_QLA2300(ha)) {
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Pause RISC. */
WRT_REG_WORD(&ha->iobase->hccr, HCCR_PAUSE_RISC);
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_WORD(&ha->iobase->hccr) &
HCCR_RISC_PAUSE) != 0)
break;
udelay(10);
}
/* Select FPM registers. */
WRT_REG_WORD(&ha->iobase->ctrl_status, 0x20);
RD_REG_WORD(&ha->iobase->ctrl_status);
/* Get the fb rev level */
ha->fb_rev = RD_FB_CMD_REG(ha, ha->iobase);
if (ha->fb_rev == FPM_2300)
w &= ~PCI_COMMAND_INVALIDATE;
/* Deselect FPM registers. */
WRT_REG_WORD(&ha->iobase->ctrl_status, 0x0);
RD_REG_WORD(&ha->iobase->ctrl_status);
/* Release RISC module. */
WRT_REG_WORD(&ha->iobase->hccr, HCCR_RELEASE_RISC);
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_WORD(&ha->iobase->hccr) &
HCCR_RISC_PAUSE) == 0)
break;
udelay(10);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
}
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
/* Reset expansion ROM address decode enable */
pci_read_config_word(ha->pdev, PCI_ROM_ADDRESS, &w);
w &= ~PCI_ROM_ADDRESS_ENABLE;
pci_write_config_word(ha->pdev, PCI_ROM_ADDRESS, w);
return (QLA_SUCCESS);
}
/**
* qla2x00_isp_firmware() - Choose firmware image.
* @ha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_isp_firmware(scsi_qla_host_t *ha)
{
int rval;
/* Assume loading risc code */
rval = QLA_FUNCTION_FAILED;
if (ha->flags.disable_risc_code_load) {
DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
ha->host_no));
qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
/* Verify checksum of loaded RISC code. */
rval = qla2x00_verify_checksum(ha);
}
if (rval) {
DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
ha->host_no));
}
return (rval);
}
/**
* qla2x00_reset_chip() - Reset ISP chip.
* @ha: HA context
*
* Returns 0 on success.
*/
static void
qla2x00_reset_chip(scsi_qla_host_t *ha)
{
unsigned long flags = 0;
device_reg_t __iomem *reg = ha->iobase;
uint32_t cnt;
unsigned long mbx_flags = 0;
uint16_t cmd;
/* Disable ISP interrupts. */
qla2x00_disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Turn off master enable */
cmd = 0;
pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
cmd &= ~PCI_COMMAND_MASTER;
pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
if (!IS_QLA2100(ha)) {
/* Pause RISC. */
WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_WORD(&reg->hccr) &
HCCR_RISC_PAUSE) != 0)
break;
udelay(100);
}
} else {
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
udelay(10);
}
/* Select FPM registers. */
WRT_REG_WORD(&reg->ctrl_status, 0x20);
RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
/* FPM Soft Reset. */
WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
/* Toggle Fpm Reset. */
if (!IS_QLA2200(ha)) {
WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
}
/* Select frame buffer registers. */
WRT_REG_WORD(&reg->ctrl_status, 0x10);
RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
/* Reset frame buffer FIFOs. */
if (IS_QLA2200(ha)) {
WRT_FB_CMD_REG(ha, reg, 0xa000);
RD_FB_CMD_REG(ha, reg); /* PCI Posting. */
} else {
WRT_FB_CMD_REG(ha, reg, 0x00fc);
/* Read back fb_cmd until zero or 3 seconds max */
for (cnt = 0; cnt < 3000; cnt++) {
if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
break;
udelay(100);
}
}
/* Select RISC module registers. */
WRT_REG_WORD(&reg->ctrl_status, 0);
RD_REG_WORD(&reg->ctrl_status); /* PCI Posting. */
/* Reset RISC processor. */
WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
/* Release RISC processor. */
WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
}
WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
/* Reset ISP chip. */
WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
/* Wait for RISC to recover from reset. */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
/*
* It is necessary to for a delay here since the card doesn't
* respond to PCI reads during a reset. On some architectures
* this will result in an MCA.
*/
udelay(20);
for (cnt = 30000; cnt; cnt--) {
if ((RD_REG_WORD(&reg->ctrl_status) &
CSR_ISP_SOFT_RESET) == 0)
break;
udelay(100);
}
} else
udelay(10);
/* Reset RISC processor. */
WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
WRT_REG_WORD(&reg->semaphore, 0);
/* Release RISC processor. */
WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);
if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY) {
if (!(test_bit(ABORT_ISP_ACTIVE,
&ha->dpc_flags)))
spin_unlock_irqrestore(
&ha->mbx_reg_lock, mbx_flags);
break;
}
if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)))
spin_unlock_irqrestore(&ha->mbx_reg_lock,
mbx_flags);
udelay(100);
}
} else
udelay(100);
/* Turn on master enable */
cmd |= PCI_COMMAND_MASTER;
pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
/* Disable RISC pause on FPM parity error. */
if (!IS_QLA2100(ha)) {
WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
/**
* qla2x00_chip_diag() - Test chip for proper operation.
* @ha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_chip_diag(scsi_qla_host_t *ha)
{
int rval;
device_reg_t __iomem *reg = ha->iobase;
unsigned long flags = 0;
uint16_t data;
uint32_t cnt;
uint16_t mb[5];
/* Assume a failed state */
rval = QLA_FUNCTION_FAILED;
DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
ha->host_no, (u_long)&reg->flash_address));
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Reset ISP chip. */
WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
/*
* We need to have a delay here since the card will not respond while
* in reset causing an MCA on some architectures.
*/
udelay(20);
data = qla2x00_debounce_register(&reg->ctrl_status);
for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
udelay(5);
data = RD_REG_WORD(&reg->ctrl_status);
barrier();
}
if (!cnt)
goto chip_diag_failed;
DEBUG3(printk("scsi(%ld): Reset register cleared by chip reset\n",
ha->host_no));
/* Reset RISC processor. */
WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
/* Workaround for QLA2312 PCI parity error */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
udelay(5);
data = RD_MAILBOX_REG(ha, reg, 0);
barrier();
}
} else
udelay(10);
if (!cnt)
goto chip_diag_failed;
/* Check product ID of chip */
DEBUG3(printk("scsi(%ld): Checking product ID of chip\n", ha->host_no));
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
mb[3] != PROD_ID_3) {
qla_printk(KERN_WARNING, ha,
"Wrong product ID = 0x%x,0x%x,0x%x\n", mb[1], mb[2], mb[3]);
goto chip_diag_failed;
}
ha->product_id[0] = mb[1];
ha->product_id[1] = mb[2];
ha->product_id[2] = mb[3];
ha->product_id[3] = mb[4];
/* Adjust fw RISC transfer size */
if (ha->request_q_length > 1024)
ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
else
ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
ha->request_q_length;
if (IS_QLA2200(ha) &&
RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
/* Limit firmware transfer size with a 2200A */
DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
ha->host_no));
ha->fw_transfer_size = 128;
}
/* Wrap Incoming Mailboxes Test. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
rval = qla2x00_mbx_reg_test(ha);
if (rval) {
DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
ha->host_no));
qla_printk(KERN_WARNING, ha,
"Failed mailbox send register test\n");
}
else {
/* Flag a successful rval */
rval = QLA_SUCCESS;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
chip_diag_failed:
if (rval)
DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
"****\n", ha->host_no));
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return (rval);
}
/**
* qla2x00_resize_request_q() - Resize request queue given available ISP memory.
* @ha: HA context
*
* Returns 0 on success.
*/
static void
qla2x00_resize_request_q(scsi_qla_host_t *ha)
{
int rval;
uint16_t fw_iocb_cnt = 0;
uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
dma_addr_t request_dma;
request_t *request_ring;
/* Valid only on recent ISPs. */
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return;
/* Retrieve IOCB counts available to the firmware. */
rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt);
if (rval)
return;
/* No point in continuing if current settings are sufficient. */
if (fw_iocb_cnt < 1024)
return;
if (ha->request_q_length >= request_q_length)
return;
/* Attempt to claim larger area for request queue. */
request_ring = dma_alloc_coherent(&ha->pdev->dev,
(request_q_length + 1) * sizeof(request_t), &request_dma,
GFP_KERNEL);
if (request_ring == NULL)
return;
/* Resize successful, report extensions. */
qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
(ha->fw_memory_size + 1) / 1024);
qla_printk(KERN_INFO, ha, "Resizing request queue depth "
"(%d -> %d)...\n", ha->request_q_length, request_q_length);
/* Clear old allocations. */
dma_free_coherent(&ha->pdev->dev,
(ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
ha->request_dma);
/* Begin using larger queue. */
ha->request_q_length = request_q_length;
ha->request_ring = request_ring;
ha->request_dma = request_dma;
}
/**
* qla2x00_setup_chip() - Load and start RISC firmware.
* @ha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_setup_chip(scsi_qla_host_t *ha)
{
int rval;
uint16_t cnt;
uint16_t *risc_code;
unsigned long risc_address;
unsigned long risc_code_size;
int num;
int i;
uint16_t *req_ring;
struct qla_fw_info *fw_iter;
rval = QLA_SUCCESS;
/* Load firmware sequences */
fw_iter = ha->brd_info->fw_info;
while (fw_iter->addressing != FW_INFO_ADDR_NOMORE) {
risc_code = fw_iter->fwcode;
risc_code_size = *fw_iter->fwlen;
if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) {
risc_address = *fw_iter->fwstart;
} else {
/* Extended address */
risc_address = *fw_iter->lfwstart;
}
num = 0;
rval = 0;
while (risc_code_size > 0 && !rval) {
cnt = (uint16_t)(ha->fw_transfer_size >> 1);
if (cnt > risc_code_size)
cnt = risc_code_size;
DEBUG7(printk("scsi(%ld): Loading risc segment@ "
"addr %p, number of bytes 0x%x, offset 0x%lx.\n",
ha->host_no, risc_code, cnt, risc_address));
req_ring = (uint16_t *)ha->request_ring;
for (i = 0; i < cnt; i++)
req_ring[i] = cpu_to_le16(risc_code[i]);
if (fw_iter->addressing == FW_INFO_ADDR_NORMAL) {
rval = qla2x00_load_ram(ha,
ha->request_dma, risc_address, cnt);
} else {
rval = qla2x00_load_ram_ext(ha,
ha->request_dma, risc_address, cnt);
}
if (rval) {
DEBUG(printk("scsi(%ld): [ERROR] Failed to "
"load segment %d of firmware\n",
ha->host_no, num));
qla_printk(KERN_WARNING, ha,
"[ERROR] Failed to load "
"segment %d of firmware\n", num);
qla2x00_dump_regs(ha);
break;
}
risc_code += cnt;
risc_address += cnt;
risc_code_size -= cnt;
num++;
}
/* Next firmware sequence */
fw_iter++;
}
/* Verify checksum of loaded RISC code. */
if (!rval) {
DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
"code.\n", ha->host_no));
rval = qla2x00_verify_checksum(ha);
if (rval == QLA_SUCCESS) {
/* Start firmware execution. */
DEBUG(printk("scsi(%ld): Checksum OK, start "
"firmware.\n", ha->host_no));
rval = qla2x00_execute_fw(ha);
/* Retrieve firmware information. */
if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
qla2x00_get_fw_version(ha,
&ha->fw_major_version,
&ha->fw_minor_version,
&ha->fw_subminor_version,
&ha->fw_attributes, &ha->fw_memory_size);
qla2x00_resize_request_q(ha);
}
} else {
DEBUG2(printk(KERN_INFO
"scsi(%ld): ISP Firmware failed checksum.\n",
ha->host_no));
}
}
if (rval) {
DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
ha->host_no));
}
return (rval);
}
/**
* qla2x00_init_response_q_entries() - Initializes response queue entries.
* @ha: HA context
*
* Beginning of request ring has initialization control block already built
* by nvram config routine.
*
* Returns 0 on success.
*/
static void
qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
{
uint16_t cnt;
response_t *pkt;
pkt = ha->response_ring_ptr;
for (cnt = 0; cnt < ha->response_q_length; cnt++) {
pkt->signature = RESPONSE_PROCESSED;
pkt++;
}
}
/**
* qla2x00_update_fw_options() - Read and process firmware options.
* @ha: HA context
*
* Returns 0 on success.
*/
static void
qla2x00_update_fw_options(scsi_qla_host_t *ha)
{
uint16_t swing, emphasis, tx_sens, rx_sens;
memset(ha->fw_options, 0, sizeof(ha->fw_options));
qla2x00_get_fw_options(ha, ha->fw_options);
if (IS_QLA2100(ha) || IS_QLA2200(ha))
return;
/* Serial Link options. */
DEBUG3(printk("scsi(%ld): Serial link options:\n",
ha->host_no));
DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
sizeof(ha->fw_seriallink_options)));
ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
if (ha->fw_seriallink_options[3] & BIT_2) {
ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
/* 1G settings */
swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
emphasis = (ha->fw_seriallink_options[2] &
(BIT_4 | BIT_3)) >> 3;
tx_sens = ha->fw_seriallink_options[0] &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
rx_sens = (ha->fw_seriallink_options[0] &
(BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
ha->fw_options[10] = (emphasis << 14) | (swing << 8);
if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
if (rx_sens == 0x0)
rx_sens = 0x3;
ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
ha->fw_options[10] |= BIT_5 |
((rx_sens & (BIT_1 | BIT_0)) << 2) |
(tx_sens & (BIT_1 | BIT_0));
/* 2G settings */
swing = (ha->fw_seriallink_options[2] &
(BIT_7 | BIT_6 | BIT_5)) >> 5;
emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
tx_sens = ha->fw_seriallink_options[1] &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
rx_sens = (ha->fw_seriallink_options[1] &
(BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
ha->fw_options[11] = (emphasis << 14) | (swing << 8);
if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
if (rx_sens == 0x0)
rx_sens = 0x3;
ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
} else if (IS_QLA2322(ha) || IS_QLA6322(ha))
ha->fw_options[11] |= BIT_5 |
((rx_sens & (BIT_1 | BIT_0)) << 2) |
(tx_sens & (BIT_1 | BIT_0));
}
/* FCP2 options. */
/* Return command IOCBs without waiting for an ABTS to complete. */
ha->fw_options[3] |= BIT_13;
/* LED scheme. */
if (ha->flags.enable_led_scheme)
ha->fw_options[2] |= BIT_12;
/* Update firmware options. */
qla2x00_set_fw_options(ha, ha->fw_options);
}
/**
* qla2x00_init_rings() - Initializes firmware.
* @ha: HA context
*
* Beginning of request ring has initialization control block already built
* by nvram config routine.
*
* Returns 0 on success.
*/
static int
qla2x00_init_rings(scsi_qla_host_t *ha)
{
int rval;
unsigned long flags = 0;
int cnt;
device_reg_t __iomem *reg = ha->iobase;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Clear outstanding commands array. */
for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
ha->outstanding_cmds[cnt] = NULL;
ha->current_outstanding_cmd = 0;
/* Clear RSCN queue. */
ha->rscn_in_ptr = 0;
ha->rscn_out_ptr = 0;
/* Initialize firmware. */
ha->request_ring_ptr = ha->request_ring;
ha->req_ring_index = 0;
ha->req_q_cnt = ha->request_q_length;
ha->response_ring_ptr = ha->response_ring;
ha->rsp_ring_index = 0;
/* Setup ring parameters in initialization control block. */
ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
/* Initialize response queue entries */
qla2x00_init_response_q_entries(ha);
WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg)); /* PCI Posting. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Update any ISP specific firmware options before initialization. */
qla2x00_update_fw_options(ha);
DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
rval = qla2x00_init_firmware(ha, sizeof(init_cb_t));
if (rval) {
DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
ha->host_no));
} else {
DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
ha->host_no));
}
return (rval);
}
/**
* qla2x00_fw_ready() - Waits for firmware ready.
* @ha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_fw_ready(scsi_qla_host_t *ha)
{
int rval;
unsigned long wtime, mtime;
uint16_t min_wait; /* Minimum wait time if loop is down */
uint16_t wait_time; /* Wait time if loop is coming ready */
uint16_t fw_state;
rval = QLA_SUCCESS;
/* 20 seconds for loop down. */
min_wait = 20;
/*
* Firmware should take at most one RATOV to login, plus 5 seconds for
* our own processing.
*/
if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
wait_time = min_wait;
}
/* Min wait time if loop down */
mtime = jiffies + (min_wait * HZ);
/* wait time before firmware ready */
wtime = jiffies + (wait_time * HZ);
/* Wait for ISP to finish LIP */
if (!ha->flags.init_done)
qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
ha->host_no));
do {
rval = qla2x00_get_firmware_state(ha, &fw_state);
if (rval == QLA_SUCCESS) {
if (fw_state < FSTATE_LOSS_OF_SYNC) {
ha->device_flags &= ~DFLG_NO_CABLE;
}
if (fw_state == FSTATE_READY) {
DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
ha->host_no));
qla2x00_get_retry_cnt(ha, &ha->retry_count,
&ha->login_timeout, &ha->r_a_tov);
rval = QLA_SUCCESS;
break;
}
rval = QLA_FUNCTION_FAILED;
if (atomic_read(&ha->loop_down_timer) &&
(fw_state >= FSTATE_LOSS_OF_SYNC ||
fw_state == FSTATE_WAIT_AL_PA)) {
/* Loop down. Timeout on min_wait for states
* other than Wait for Login.
*/
if (time_after_eq(jiffies, mtime)) {
qla_printk(KERN_INFO, ha,
"Cable is unplugged...\n");
ha->device_flags |= DFLG_NO_CABLE;
break;
}
}
} else {
/* Mailbox cmd failed. Timeout on min_wait. */
if (time_after_eq(jiffies, mtime))
break;
}
if (time_after_eq(jiffies, wtime))
break;
/* Delay for a while */
msleep(500);
DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
ha->host_no, fw_state, jiffies));
} while (1);
DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
ha->host_no, fw_state, jiffies));
if (rval) {
DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
ha->host_no));
}
return (rval);
}
/*
* qla2x00_configure_hba
* Setup adapter context.
*
* Input:
* ha = adapter state pointer.
*
* Returns:
* 0 = success
*
* Context:
* Kernel context.
*/
static int
qla2x00_configure_hba(scsi_qla_host_t *ha)
{
int rval;
uint16_t loop_id;
uint16_t topo;
uint8_t al_pa;
uint8_t area;
uint8_t domain;
char connect_type[22];
/* Get host addresses. */
rval = qla2x00_get_adapter_id(ha,
&loop_id, &al_pa, &area, &domain, &topo);
if (rval != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
"ERROR -- Unable to get host loop ID.\n");
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
return (rval);
}
if (topo == 4) {
qla_printk(KERN_INFO, ha,
"Cannot get topology - retrying.\n");
return (QLA_FUNCTION_FAILED);
}
ha->loop_id = loop_id;
/* initialize */
ha->min_external_loopid = SNS_FIRST_LOOP_ID;
ha->operating_mode = LOOP;
switch (topo) {
case 0:
DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
ha->host_no));
ha->current_topology = ISP_CFG_NL;
strcpy(connect_type, "(Loop)");
break;
case 1:
DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
ha->host_no));
ha->current_topology = ISP_CFG_FL;
strcpy(connect_type, "(FL_Port)");
break;
case 2:
DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
ha->host_no));
ha->operating_mode = P2P;
ha->current_topology = ISP_CFG_N;
strcpy(connect_type, "(N_Port-to-N_Port)");
break;
case 3:
DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
ha->host_no));
ha->operating_mode = P2P;
ha->current_topology = ISP_CFG_F;
strcpy(connect_type, "(F_Port)");
break;
default:
DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
"Using NL.\n",
ha->host_no, topo));
ha->current_topology = ISP_CFG_NL;
strcpy(connect_type, "(Loop)");
break;
}
/* Save Host port and loop ID. */
/* byte order - Big Endian */
ha->d_id.b.domain = domain;
ha->d_id.b.area = area;
ha->d_id.b.al_pa = al_pa;
if (!ha->flags.init_done)
qla_printk(KERN_INFO, ha,
"Topology - %s, Host Loop address 0x%x\n",
connect_type, ha->loop_id);
if (rval) {
DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
} else {
DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
}
return(rval);
}
/*
* NVRAM configuration for ISP 2xxx
*
* Input:
* ha = adapter block pointer.
*
* Output:
* initialization control block in response_ring
* host adapters parameters in host adapter block
*
* Returns:
* 0 = success.
*/
static int
qla2x00_nvram_config(scsi_qla_host_t *ha)
{
int rval;
uint8_t chksum = 0;
uint16_t cnt;
uint8_t *dptr1, *dptr2;
init_cb_t *icb = ha->init_cb;
nvram_t *nv = (nvram_t *)ha->request_ring;
uint16_t *wptr = (uint16_t *)ha->request_ring;
device_reg_t __iomem *reg = ha->iobase;
uint8_t timer_mode;
rval = QLA_SUCCESS;
/* Determine NVRAM starting address. */
ha->nvram_base = 0;
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
ha->nvram_base = 0x80;
/* Get NVRAM data and calculate checksum. */
qla2x00_lock_nvram_access(ha);
for (cnt = 0; cnt < sizeof(nvram_t)/2; cnt++) {
*wptr = cpu_to_le16(qla2x00_get_nvram_word(ha,
(cnt+ha->nvram_base)));
chksum += (uint8_t)*wptr;
chksum += (uint8_t)(*wptr >> 8);
wptr++;
}
qla2x00_unlock_nvram_access(ha);
DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
DEBUG5(qla2x00_dump_buffer((uint8_t *)ha->request_ring,
sizeof(nvram_t)));
/* Bad NVRAM data, set defaults parameters. */
if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
/* Reset NVRAM data. */
qla_printk(KERN_WARNING, ha, "Inconsistent NVRAM detected: "
"checksum=0x%x id=%c version=0x%x.\n", chksum, nv->id[0],
nv->nvram_version);
qla_printk(KERN_WARNING, ha, "Falling back to functioning (yet "
"invalid -- WWPN) defaults.\n");
/*
* Set default initialization control block.
*/
memset(nv, 0, sizeof(nvram_t));
nv->parameter_block_version = ICB_VERSION;
if (IS_QLA23XX(ha)) {
nv->firmware_options[0] = BIT_2 | BIT_1;
nv->firmware_options[1] = BIT_7 | BIT_5;
nv->add_firmware_options[0] = BIT_5;
nv->add_firmware_options[1] = BIT_5 | BIT_4;
nv->frame_payload_size = __constant_cpu_to_le16(2048);
nv->special_options[1] = BIT_7;
} else if (IS_QLA2200(ha)) {
nv->firmware_options[0] = BIT_2 | BIT_1;
nv->firmware_options[1] = BIT_7 | BIT_5;
nv->add_firmware_options[0] = BIT_5;
nv->add_firmware_options[1] = BIT_5 | BIT_4;
nv->frame_payload_size = __constant_cpu_to_le16(1024);
} else if (IS_QLA2100(ha)) {
nv->firmware_options[0] = BIT_3 | BIT_1;
nv->firmware_options[1] = BIT_5;
nv->frame_payload_size = __constant_cpu_to_le16(1024);
}
nv->max_iocb_allocation = __constant_cpu_to_le16(256);
nv->execution_throttle = __constant_cpu_to_le16(16);
nv->retry_count = 8;
nv->retry_delay = 1;
nv->port_name[0] = 33;
nv->port_name[3] = 224;
nv->port_name[4] = 139;
nv->login_timeout = 4;
/*
* Set default host adapter parameters
*/
nv->host_p[1] = BIT_2;
nv->reset_delay = 5;
nv->port_down_retry_count = 8;
nv->max_luns_per_target = __constant_cpu_to_le16(8);
nv->link_down_timeout = 60;
rval = 1;
}
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
/*
* The SN2 does not provide BIOS emulation which means you can't change
* potentially bogus BIOS settings. Force the use of default settings
* for link rate and frame size. Hope that the rest of the settings
* are valid.
*/
if (ia64_platform_is("sn2")) {
nv->frame_payload_size = __constant_cpu_to_le16(2048);
if (IS_QLA23XX(ha))
nv->special_options[1] = BIT_7;
}
#endif
/* Reset Initialization control block */
memset(icb, 0, sizeof(init_cb_t));
/*
* Setup driver NVRAM options.
*/
nv->firmware_options[0] |= (BIT_6 | BIT_1);
nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
nv->firmware_options[1] |= (BIT_5 | BIT_0);
nv->firmware_options[1] &= ~BIT_4;
if (IS_QLA23XX(ha)) {
nv->firmware_options[0] |= BIT_2;
nv->firmware_options[0] &= ~BIT_3;
if (IS_QLA2300(ha)) {
if (ha->fb_rev == FPM_2310) {
strcpy(ha->model_number, "QLA2310");
} else {
strcpy(ha->model_number, "QLA2300");
}
} else {
if (rval == 0 &&
memcmp(nv->model_number, BINZERO,
sizeof(nv->model_number)) != 0) {
char *st, *en;
strncpy(ha->model_number, nv->model_number,
sizeof(nv->model_number));
st = en = ha->model_number;
en += sizeof(nv->model_number) - 1;
while (en > st) {
if (*en != 0x20 && *en != 0x00)
break;
*en-- = '\0';
}
} else {
uint16_t index;
index = (ha->pdev->subsystem_device & 0xff);
if (index < QLA_MODEL_NAMES) {
strcpy(ha->model_number,
qla2x00_model_name[index]);
ha->model_desc =
qla2x00_model_desc[index];
} else {
strcpy(ha->model_number, "QLA23xx");
}
}
}
} else if (IS_QLA2200(ha)) {
nv->firmware_options[0] |= BIT_2;
/*
* 'Point-to-point preferred, else loop' is not a safe
* connection mode setting.
*/
if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
(BIT_5 | BIT_4)) {
/* Force 'loop preferred, else point-to-point'. */
nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
nv->add_firmware_options[0] |= BIT_5;
}
strcpy(ha->model_number, "QLA22xx");
} else /*if (IS_QLA2100(ha))*/ {
strcpy(ha->model_number, "QLA2100");
}
/*
* Copy over NVRAM RISC parameter block to initialization control block.
*/
dptr1 = (uint8_t *)icb;
dptr2 = (uint8_t *)&nv->parameter_block_version;
cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
while (cnt--)
*dptr1++ = *dptr2++;
/* Copy 2nd half. */
dptr1 = (uint8_t *)icb->add_firmware_options;
cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
while (cnt--)
*dptr1++ = *dptr2++;
/* Prepare nodename */
if ((icb->firmware_options[1] & BIT_6) == 0) {
/*
* Firmware will apply the following mask if the nodename was
* not provided.
*/
memcpy(icb->node_name, icb->port_name, WWN_SIZE);
icb->node_name[0] &= 0xF0;
}
/*
* Set host adapter parameters.
*/
ha->nvram_version = nv->nvram_version;
ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
/* Always load RISC code on non ISP2[12]00 chips. */
if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
ha->flags.disable_risc_code_load = 0;
ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
ha->flags.enable_led_scheme = ((nv->efi_parameters & BIT_3) ? 1 : 0);
ha->operating_mode =
(icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
memcpy(ha->fw_seriallink_options, nv->seriallink_options,
sizeof(ha->fw_seriallink_options));
/* save HBA serial number */
ha->serial0 = icb->port_name[5];
ha->serial1 = icb->port_name[6];
ha->serial2 = icb->port_name[7];
memcpy(ha->node_name, icb->node_name, WWN_SIZE);
icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
ha->retry_count = nv->retry_count;
/* Set minimum login_timeout to 4 seconds. */
if (nv->login_timeout < ql2xlogintimeout)
nv->login_timeout = ql2xlogintimeout;
if (nv->login_timeout < 4)
nv->login_timeout = 4;
ha->login_timeout = nv->login_timeout;
icb->login_timeout = nv->login_timeout;
/* Set minimum RATOV to 200 tenths of a second. */
ha->r_a_tov = 200;
ha->minimum_timeout =
(ha->login_timeout * ha->retry_count) + nv->port_down_retry_count;
ha->loop_reset_delay = nv->reset_delay;
/* Will get the value from NVRAM. */
ha->loop_down_timeout = LOOP_DOWN_TIMEOUT;
/* Link Down Timeout = 0:
*
* When Port Down timer expires we will start returning
* I/O's to OS with "DID_NO_CONNECT".
*
* Link Down Timeout != 0:
*
* The driver waits for the link to come up after link down
* before returning I/Os to OS with "DID_NO_CONNECT".
*/
if (nv->link_down_timeout == 0) {
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - ha->loop_down_timeout);
} else {
ha->link_down_timeout = nv->link_down_timeout;
ha->loop_down_abort_time =
(LOOP_DOWN_TIME - ha->link_down_timeout);
}
ha->max_luns = MAX_LUNS;
ha->max_probe_luns = le16_to_cpu(nv->max_luns_per_target);
if (ha->max_probe_luns == 0)
ha->max_probe_luns = MIN_LUNS;
/*
* Need enough time to try and get the port back.
*/
ha->port_down_retry_count = nv->port_down_retry_count;
if (qlport_down_retry)
ha->port_down_retry_count = qlport_down_retry;
/* Set login_retry_count */
ha->login_retry_count = nv->retry_count;
if (ha->port_down_retry_count == nv->port_down_retry_count &&
ha->port_down_retry_count > 3)
ha->login_retry_count = ha->port_down_retry_count;
else if (ha->port_down_retry_count > (int)ha->login_retry_count)
ha->login_retry_count = ha->port_down_retry_count;
if (ql2xloginretrycount)
ha->login_retry_count = ql2xloginretrycount;
ha->binding_type = Bind;
if (ha->binding_type != BIND_BY_PORT_NAME &&
ha->binding_type != BIND_BY_PORT_ID) {
qla_printk(KERN_WARNING, ha,
"Invalid binding type specified (%d), "
"defaulting to BIND_BY_PORT_NAME!!!\n", ha->binding_type);
ha->binding_type = BIND_BY_PORT_NAME;
}
icb->lun_enables = __constant_cpu_to_le16(0);
icb->command_resource_count = 0;
icb->immediate_notify_resource_count = 0;
icb->timeout = __constant_cpu_to_le16(0);
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
/* Enable RIO */
icb->firmware_options[0] &= ~BIT_3;
icb->add_firmware_options[0] &=
~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
icb->add_firmware_options[0] |= BIT_2;
icb->response_accumulation_timer = 3;
icb->interrupt_delay_timer = 5;
ha->flags.process_response_queue = 1;
} else {
/* Enable ZIO -- Support mode 5 only. */
timer_mode = icb->add_firmware_options[0] &
(BIT_3 | BIT_2 | BIT_1 | BIT_0);
icb->add_firmware_options[0] &=
~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
if (ql2xenablezio)
timer_mode = BIT_2 | BIT_0;
if (timer_mode == (BIT_2 | BIT_0)) {
DEBUG2(printk("scsi(%ld): ZIO enabled; timer delay "
"(%d).\n", ha->host_no, ql2xintrdelaytimer));
qla_printk(KERN_INFO, ha,
"ZIO enabled; timer delay (%d).\n",
ql2xintrdelaytimer);
icb->add_firmware_options[0] |= timer_mode;
icb->interrupt_delay_timer = ql2xintrdelaytimer;
ha->flags.process_response_queue = 1;
}
}
if (rval) {
DEBUG2_3(printk(KERN_WARNING
"scsi(%ld): NVRAM configuration failed!\n", ha->host_no));
}
return (rval);
}
/*
* qla2x00_init_tgt_map
* Initializes target map.
*
* Input:
* ha = adapter block pointer.
*
* Output:
* TGT_Q initialized
*/
static void
qla2x00_init_tgt_map(scsi_qla_host_t *ha)
{
uint32_t t;
for (t = 0; t < MAX_TARGETS; t++)
TGT_Q(ha, t) = (os_tgt_t *)NULL;
}
/**
* qla2x00_alloc_fcport() - Allocate a generic fcport.
* @ha: HA context
* @flags: allocation flags
*
* Returns a pointer to the allocated fcport, or NULL, if none available.
*/
fc_port_t *
qla2x00_alloc_fcport(scsi_qla_host_t *ha, int flags)
{
fc_port_t *fcport;
fcport = kmalloc(sizeof(fc_port_t), flags);
if (fcport == NULL)
return (fcport);
/* Setup fcport template structure. */
memset(fcport, 0, sizeof (fc_port_t));
fcport->ha = ha;
fcport->port_type = FCT_UNKNOWN;
fcport->loop_id = FC_NO_LOOP_ID;
fcport->iodesc_idx_sent = IODESC_INVALID_INDEX;
atomic_set(&fcport->state, FCS_UNCONFIGURED);
fcport->flags = FCF_RLC_SUPPORT;
INIT_LIST_HEAD(&fcport->fcluns);
return (fcport);
}
/*
* qla2x00_configure_loop
* Updates Fibre Channel Device Database with what is actually on loop.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
* 1 = error.
* 2 = database was full and device was not configured.
*/
static int
qla2x00_configure_loop(scsi_qla_host_t *ha)
{
int rval;
unsigned long flags, save_flags;
rval = QLA_SUCCESS;
/* Get Initiator ID */
if (test_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags)) {
rval = qla2x00_configure_hba(ha);
if (rval != QLA_SUCCESS) {
DEBUG(printk("scsi(%ld): Unable to configure HBA.\n",
ha->host_no));
return (rval);
}
}
save_flags = flags = ha->dpc_flags;
DEBUG(printk("scsi(%ld): Configure loop -- dpc flags =0x%lx\n",
ha->host_no, flags));
/*
* If we have both an RSCN and PORT UPDATE pending then handle them
* both at the same time.
*/
clear_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
clear_bit(RSCN_UPDATE, &ha->dpc_flags);
ha->mem_err = 0 ;
/* Determine what we need to do */
if (ha->current_topology == ISP_CFG_FL &&
(test_bit(LOCAL_LOOP_UPDATE, &flags))) {
ha->flags.rscn_queue_overflow = 1;
set_bit(RSCN_UPDATE, &flags);
} else if (ha->current_topology == ISP_CFG_F &&
(test_bit(LOCAL_LOOP_UPDATE, &flags))) {
ha->flags.rscn_queue_overflow = 1;
set_bit(RSCN_UPDATE, &flags);
clear_bit(LOCAL_LOOP_UPDATE, &flags);
} else if (!ha->flags.online ||
(test_bit(ABORT_ISP_ACTIVE, &flags))) {
ha->flags.rscn_queue_overflow = 1;
set_bit(RSCN_UPDATE, &flags);
set_bit(LOCAL_LOOP_UPDATE, &flags);
}
if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
rval = QLA_FUNCTION_FAILED;
} else {
rval = qla2x00_configure_local_loop(ha);
}
}
if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
rval = QLA_FUNCTION_FAILED;
} else {
rval = qla2x00_configure_fabric(ha);
}
}
if (rval == QLA_SUCCESS) {
if (atomic_read(&ha->loop_down_timer) ||
test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
rval = QLA_FUNCTION_FAILED;
} else {
qla2x00_config_os(ha);
atomic_set(&ha->loop_state, LOOP_READY);
DEBUG(printk("scsi(%ld): LOOP READY\n", ha->host_no));
}
}
if (rval) {
DEBUG2_3(printk("%s(%ld): *** FAILED ***\n",
__func__, ha->host_no));
} else {
DEBUG3(printk("%s: exiting normally\n", __func__));
}
/* Restore state if a resync event occured during processing */
if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
if (test_bit(RSCN_UPDATE, &save_flags))
set_bit(RSCN_UPDATE, &ha->dpc_flags);
}
return (rval);
}
/*
* qla2x00_configure_local_loop
* Updates Fibre Channel Device Database with local loop devices.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
*/
static int
qla2x00_configure_local_loop(scsi_qla_host_t *ha)
{
int rval, rval2;
int found_devs;
int found;
fc_port_t *fcport, *new_fcport;
uint16_t index;
uint16_t entries;
char *id_iter;
uint16_t loop_id;
uint8_t domain, area, al_pa;
found_devs = 0;
new_fcport = NULL;
entries = MAX_FIBRE_DEVICES;
DEBUG3(printk("scsi(%ld): Getting FCAL position map\n", ha->host_no));
DEBUG3(qla2x00_get_fcal_position_map(ha, NULL));
/* Get list of logged in devices. */
memset(ha->gid_list, 0, GID_LIST_SIZE);
rval = qla2x00_get_id_list(ha, ha->gid_list, ha->gid_list_dma,
&entries);
if (rval != QLA_SUCCESS)
goto cleanup_allocation;
DEBUG3(printk("scsi(%ld): Entries in ID list (%d)\n",
ha->host_no, entries));
DEBUG3(qla2x00_dump_buffer((uint8_t *)ha->gid_list,
entries * sizeof(struct gid_list_info)));
/* Allocate temporary fcport for any new fcports discovered. */
new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
if (new_fcport == NULL) {
rval = QLA_MEMORY_ALLOC_FAILED;
goto cleanup_allocation;
}
new_fcport->flags &= ~FCF_FABRIC_DEVICE;
/*
* Mark local devices that were present with FCF_DEVICE_LOST for now.
*/
list_for_each_entry(fcport, &ha->fcports, list) {
if (atomic_read(&fcport->state) == FCS_ONLINE &&
fcport->port_type != FCT_BROADCAST &&
(fcport->flags & FCF_FABRIC_DEVICE) == 0) {
DEBUG(printk("scsi(%ld): Marking port lost, "
"loop_id=0x%04x\n",
ha->host_no, fcport->loop_id));
atomic_set(&fcport->state, FCS_DEVICE_LOST);
fcport->flags &= ~FCF_FARP_DONE;
}
}
/* Add devices to port list. */
id_iter = (char *)ha->gid_list;
for (index = 0; index < entries; index++) {
domain = ((struct gid_list_info *)id_iter)->domain;
area = ((struct gid_list_info *)id_iter)->area;
al_pa = ((struct gid_list_info *)id_iter)->al_pa;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
loop_id = (uint16_t)
((struct gid_list_info *)id_iter)->loop_id_2100;
id_iter += 4;
} else {
loop_id = le16_to_cpu(
((struct gid_list_info *)id_iter)->loop_id);
id_iter += 6;
}
/* Bypass reserved domain fields. */
if ((domain & 0xf0) == 0xf0)
continue;
/* Bypass if not same domain and area of adapter. */
if (area != ha->d_id.b.area || domain != ha->d_id.b.domain)
continue;
/* Bypass invalid local loop ID. */
if (loop_id > LAST_LOCAL_LOOP_ID)
continue;
/* Fill in member data. */
new_fcport->d_id.b.domain = domain;
new_fcport->d_id.b.area = area;
new_fcport->d_id.b.al_pa = al_pa;
new_fcport->loop_id = loop_id;
rval2 = qla2x00_get_port_database(ha, new_fcport, 0);
if (rval2 != QLA_SUCCESS) {
DEBUG2(printk("scsi(%ld): Failed to retrieve fcport "
"information -- get_port_database=%x, "
"loop_id=0x%04x\n",
ha->host_no, rval2, new_fcport->loop_id));
continue;
}
/* Check for matching device in port list. */
found = 0;
fcport = NULL;
list_for_each_entry(fcport, &ha->fcports, list) {
if (memcmp(new_fcport->port_name, fcport->port_name,
WWN_SIZE))
continue;
fcport->flags &= ~(FCF_FABRIC_DEVICE |
FCF_PERSISTENT_BOUND);
fcport->loop_id = new_fcport->loop_id;
fcport->port_type = new_fcport->port_type;
fcport->d_id.b24 = new_fcport->d_id.b24;
memcpy(fcport->node_name, new_fcport->node_name,
WWN_SIZE);
found++;
break;
}
if (!found) {
/* New device, add to fcports list. */
new_fcport->flags &= ~FCF_PERSISTENT_BOUND;
list_add_tail(&new_fcport->list, &ha->fcports);
/* Allocate a new replacement fcport. */
fcport = new_fcport;
new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
if (new_fcport == NULL) {
rval = QLA_MEMORY_ALLOC_FAILED;
goto cleanup_allocation;
}
new_fcport->flags &= ~FCF_FABRIC_DEVICE;
}
qla2x00_update_fcport(ha, fcport);
found_devs++;
}
cleanup_allocation:
if (new_fcport)
kfree(new_fcport);
if (rval != QLA_SUCCESS) {
DEBUG2(printk("scsi(%ld): Configure local loop error exit: "
"rval=%x\n", ha->host_no, rval));
}
if (found_devs) {
ha->device_flags |= DFLG_LOCAL_DEVICES;
ha->device_flags &= ~DFLG_RETRY_LOCAL_DEVICES;
}
return (rval);
}
static void
qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
{
fc_port_t *fcport;
qla2x00_mark_all_devices_lost(ha);
list_for_each_entry(fcport, &ha->fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
qla2x00_update_fcport(ha, fcport);
}
}
/*
* qla2x00_update_fcport
* Updates device on list.
*
* Input:
* ha = adapter block pointer.
* fcport = port structure pointer.
*
* Return:
* 0 - Success
* BIT_0 - error
*
* Context:
* Kernel context.
*/
static void
qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
{
uint16_t index;
unsigned long flags;
srb_t *sp;
fcport->ha = ha;
fcport->login_retry = 0;
fcport->port_login_retry_count = ha->port_down_retry_count *
PORT_RETRY_TIME;
atomic_set(&fcport->port_down_timer, ha->port_down_retry_count *
PORT_RETRY_TIME);
fcport->flags &= ~FCF_LOGIN_NEEDED;
/*
* Check for outstanding cmd on tape Bypass LUN discovery if active
* command on tape.
*/
if (fcport->flags & FCF_TAPE_PRESENT) {
spin_lock_irqsave(&ha->hardware_lock, flags);
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
if ((sp = ha->outstanding_cmds[index]) != 0) {
if (sp->fclun->fcport == fcport) {
atomic_set(&fcport->state, FCS_ONLINE);
spin_unlock_irqrestore(
&ha->hardware_lock, flags);
return;
}
}
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
/* Do LUN discovery. */
if (fcport->port_type == FCT_INITIATOR ||
fcport->port_type == FCT_BROADCAST) {
fcport->device_type = TYPE_PROCESSOR;
} else {
qla2x00_lun_discovery(ha, fcport);
}
atomic_set(&fcport->state, FCS_ONLINE);
}
/*
* qla2x00_lun_discovery
* Issue SCSI inquiry command for LUN discovery.
*
* Input:
* ha: adapter state pointer.
* fcport: FC port structure pointer.
*
* Context:
* Kernel context.
*/
static void
qla2x00_lun_discovery(scsi_qla_host_t *ha, fc_port_t *fcport)
{
inq_cmd_rsp_t *inq;
dma_addr_t inq_dma;
uint16_t lun;
inq = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &inq_dma);
if (inq == NULL) {
qla_printk(KERN_WARNING, ha,
"Memory Allocation failed - INQ\n");
return;
}
/* Always add a fc_lun_t structure for lun 0 -- mid-layer requirement */
qla2x00_add_lun(fcport, 0);
/* If report LUN works, exit. */
if (qla2x00_rpt_lun_discovery(ha, fcport, inq, inq_dma) !=
QLA_SUCCESS) {
for (lun = 0; lun < ha->max_probe_luns; lun++) {
/* Configure LUN. */
qla2x00_cfg_lun(ha, fcport, lun, inq, inq_dma);
}
}
dma_pool_free(ha->s_dma_pool, inq, inq_dma);
}
/*
* qla2x00_rpt_lun_discovery
* Issue SCSI report LUN command for LUN discovery.
*
* Input:
* ha: adapter state pointer.
* fcport: FC port structure pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
static int
qla2x00_rpt_lun_discovery(scsi_qla_host_t *ha, fc_port_t *fcport,
inq_cmd_rsp_t *inq, dma_addr_t inq_dma)
{
int rval;
uint32_t len, cnt;
uint16_t lun;
/* Assume a failed status */
rval = QLA_FUNCTION_FAILED;
/* No point in continuing if the device doesn't support RLC */
if ((fcport->flags & FCF_RLC_SUPPORT) == 0)
return (rval);
rval = qla2x00_report_lun(ha, fcport);
if (rval != QLA_SUCCESS)
return (rval);
/* Configure LUN list. */
len = be32_to_cpu(ha->rlc_rsp->list.hdr.len);
len /= 8;
for (cnt = 0; cnt < len; cnt++) {
lun = CHAR_TO_SHORT(ha->rlc_rsp->list.lst[cnt].lsb,
ha->rlc_rsp->list.lst[cnt].msb.b);
DEBUG3(printk("scsi(%ld): RLC lun = (%d)\n", ha->host_no, lun));
/* We only support 0 through MAX_LUNS-1 range */
if (lun < MAX_LUNS) {
qla2x00_cfg_lun(ha, fcport, lun, inq, inq_dma);
}
}
atomic_set(&fcport->state, FCS_ONLINE);
return (rval);
}
/*
* qla2x00_report_lun
* Issue SCSI report LUN command.
*
* Input:
* ha: adapter state pointer.
* fcport: FC port structure pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
static int
qla2x00_report_lun(scsi_qla_host_t *ha, fc_port_t *fcport)
{
int rval;
uint16_t retries;
uint16_t comp_status;
uint16_t scsi_status;
rpt_lun_cmd_rsp_t *rlc;
dma_addr_t rlc_dma;
rval = QLA_FUNCTION_FAILED;
rlc = ha->rlc_rsp;
rlc_dma = ha->rlc_rsp_dma;
for (retries = 3; retries; retries--) {
memset(rlc, 0, sizeof(rpt_lun_cmd_rsp_t));
rlc->p.cmd.entry_type = COMMAND_A64_TYPE;
rlc->p.cmd.entry_count = 1;
SET_TARGET_ID(ha, rlc->p.cmd.target, fcport->loop_id);
rlc->p.cmd.control_flags =
__constant_cpu_to_le16(CF_READ | CF_SIMPLE_TAG);
rlc->p.cmd.scsi_cdb[0] = REPORT_LUNS;
rlc->p.cmd.scsi_cdb[8] = MSB(sizeof(rpt_lun_lst_t));
rlc->p.cmd.scsi_cdb[9] = LSB(sizeof(rpt_lun_lst_t));
rlc->p.cmd.dseg_count = __constant_cpu_to_le16(1);
rlc->p.cmd.timeout = __constant_cpu_to_le16(10);
rlc->p.cmd.byte_count =
__constant_cpu_to_le32(sizeof(rpt_lun_lst_t));
rlc->p.cmd.dseg_0_address[0] = cpu_to_le32(
LSD(rlc_dma + sizeof(sts_entry_t)));
rlc->p.cmd.dseg_0_address[1] = cpu_to_le32(
MSD(rlc_dma + sizeof(sts_entry_t)));
rlc->p.cmd.dseg_0_length =
__constant_cpu_to_le32(sizeof(rpt_lun_lst_t));
rval = qla2x00_issue_iocb(ha, rlc, rlc_dma,
sizeof(rpt_lun_cmd_rsp_t));
comp_status = le16_to_cpu(rlc->p.rsp.comp_status);
scsi_status = le16_to_cpu(rlc->p.rsp.scsi_status);
if (rval != QLA_SUCCESS || comp_status != CS_COMPLETE ||
scsi_status & SS_CHECK_CONDITION) {
/* Device underrun, treat as OK. */
if (rval == QLA_SUCCESS &&
comp_status == CS_DATA_UNDERRUN &&
scsi_status & SS_RESIDUAL_UNDER) {
rval = QLA_SUCCESS;
break;
}
DEBUG(printk("scsi(%ld): RLC failed to issue iocb! "
"fcport=[%04x/%p] rval=%x cs=%x ss=%x\n",
ha->host_no, fcport->loop_id, fcport, rval,
comp_status, scsi_status));
rval = QLA_FUNCTION_FAILED;
if (scsi_status & SS_CHECK_CONDITION) {
DEBUG2(printk("scsi(%ld): RLC "
"SS_CHECK_CONDITION Sense Data "
"%02x %02x %02x %02x %02x %02x %02x %02x\n",
ha->host_no,
rlc->p.rsp.req_sense_data[0],
rlc->p.rsp.req_sense_data[1],
rlc->p.rsp.req_sense_data[2],
rlc->p.rsp.req_sense_data[3],
rlc->p.rsp.req_sense_data[4],
rlc->p.rsp.req_sense_data[5],
rlc->p.rsp.req_sense_data[6],
rlc->p.rsp.req_sense_data[7]));
if (rlc->p.rsp.req_sense_data[2] ==
ILLEGAL_REQUEST) {
fcport->flags &= ~(FCF_RLC_SUPPORT);
break;
}
}
} else {
break;
}
}
return (rval);
}
/*
* qla2x00_cfg_lun
* Configures LUN into fcport LUN list.
*
* Input:
* fcport: FC port structure pointer.
* lun: LUN number.
*
* Context:
* Kernel context.
*/
static fc_lun_t *
qla2x00_cfg_lun(scsi_qla_host_t *ha, fc_port_t *fcport, uint16_t lun,
inq_cmd_rsp_t *inq, dma_addr_t inq_dma)
{
fc_lun_t *fclun;
uint8_t device_type;
/* Bypass LUNs that failed. */
if (qla2x00_inquiry(ha, fcport, lun, inq, inq_dma) != QLA_SUCCESS) {
DEBUG2(printk("scsi(%ld): Failed inquiry - loop id=0x%04x "
"lun=%d\n", ha->host_no, fcport->loop_id, lun));
return (NULL);
}
device_type = (inq->inq[0] & 0x1f);
switch (device_type) {
case TYPE_DISK:
case TYPE_PROCESSOR:
case TYPE_WORM:
case TYPE_ROM:
case TYPE_SCANNER:
case TYPE_MOD:
case TYPE_MEDIUM_CHANGER:
case TYPE_ENCLOSURE:
case 0x20:
case 0x0C:
break;
case TYPE_TAPE:
fcport->flags |= FCF_TAPE_PRESENT;
break;
default:
DEBUG2(printk("scsi(%ld): Unsupported lun type -- "
"loop id=0x%04x lun=%d type=%x\n",
ha->host_no, fcport->loop_id, lun, device_type));
return (NULL);
}
fcport->device_type = device_type;
fclun = qla2x00_add_lun(fcport, lun);
if (fclun != NULL) {
atomic_set(&fcport->state, FCS_ONLINE);
}
return (fclun);
}
/*
* qla2x00_add_lun
* Adds LUN to database
*
* Input:
* fcport: FC port structure pointer.
* lun: LUN number.
*
* Context:
* Kernel context.
*/
static fc_lun_t *
qla2x00_add_lun(fc_port_t *fcport, uint16_t lun)
{
int found;
fc_lun_t *fclun;
if (fcport == NULL) {
DEBUG(printk("scsi: Unable to add lun to NULL port\n"));
return (NULL);
}
/* Allocate LUN if not already allocated. */
found = 0;
list_for_each_entry(fclun, &fcport->fcluns, list) {
if (fclun->lun == lun) {
found++;
break;
}
}
if (found)
return (NULL);
fclun = kmalloc(sizeof(fc_lun_t), GFP_ATOMIC);
if (fclun == NULL) {
printk(KERN_WARNING
"%s(): Memory Allocation failed - FCLUN\n",
__func__);
return (NULL);
}
/* Setup LUN structure. */
memset(fclun, 0, sizeof(fc_lun_t));
fclun->lun = lun;
fclun->fcport = fcport;
fclun->o_fcport = fcport;
fclun->device_type = fcport->device_type;
atomic_set(&fcport->state, FCS_UNCONFIGURED);
list_add_tail(&fclun->list, &fcport->fcluns);
return (fclun);
}
/*
* qla2x00_inquiry
* Issue SCSI inquiry command.
*
* Input:
* ha = adapter block pointer.
* fcport = FC port structure pointer.
*
* Return:
* 0 - Success
* BIT_0 - error
*
* Context:
* Kernel context.
*/
static int
qla2x00_inquiry(scsi_qla_host_t *ha,
fc_port_t *fcport, uint16_t lun, inq_cmd_rsp_t *inq, dma_addr_t inq_dma)
{
int rval;
uint16_t retries;
uint16_t comp_status;
uint16_t scsi_status;
rval = QLA_FUNCTION_FAILED;
for (retries = 3; retries; retries--) {
memset(inq, 0, sizeof(inq_cmd_rsp_t));
inq->p.cmd.entry_type = COMMAND_A64_TYPE;
inq->p.cmd.entry_count = 1;
inq->p.cmd.lun = cpu_to_le16(lun);
SET_TARGET_ID(ha, inq->p.cmd.target, fcport->loop_id);
inq->p.cmd.control_flags =
__constant_cpu_to_le16(CF_READ | CF_SIMPLE_TAG);
inq->p.cmd.scsi_cdb[0] = INQUIRY;
inq->p.cmd.scsi_cdb[4] = INQ_DATA_SIZE;
inq->p.cmd.dseg_count = __constant_cpu_to_le16(1);
inq->p.cmd.timeout = __constant_cpu_to_le16(10);
inq->p.cmd.byte_count =
__constant_cpu_to_le32(INQ_DATA_SIZE);
inq->p.cmd.dseg_0_address[0] = cpu_to_le32(
LSD(inq_dma + sizeof(sts_entry_t)));
inq->p.cmd.dseg_0_address[1] = cpu_to_le32(
MSD(inq_dma + sizeof(sts_entry_t)));
inq->p.cmd.dseg_0_length =
__constant_cpu_to_le32(INQ_DATA_SIZE);
DEBUG5(printk("scsi(%ld): Lun Inquiry - fcport=[%04x/%p],"
" lun (%d)\n",
ha->host_no, fcport->loop_id, fcport, lun));
rval = qla2x00_issue_iocb(ha, inq, inq_dma,
sizeof(inq_cmd_rsp_t));
comp_status = le16_to_cpu(inq->p.rsp.comp_status);
scsi_status = le16_to_cpu(inq->p.rsp.scsi_status);
DEBUG5(printk("scsi(%ld): lun (%d) inquiry - "
"inq[0]= 0x%x, comp status 0x%x, scsi status 0x%x, "
"rval=%d\n",
ha->host_no, lun, inq->inq[0], comp_status, scsi_status,
rval));
if (rval != QLA_SUCCESS || comp_status != CS_COMPLETE ||
scsi_status & SS_CHECK_CONDITION) {
DEBUG(printk("scsi(%ld): INQ failed to issue iocb! "
"fcport=[%04x/%p] rval=%x cs=%x ss=%x\n",
ha->host_no, fcport->loop_id, fcport, rval,
comp_status, scsi_status));
if (rval == QLA_SUCCESS)
rval = QLA_FUNCTION_FAILED;
if (scsi_status & SS_CHECK_CONDITION) {
DEBUG2(printk("scsi(%ld): INQ "
"SS_CHECK_CONDITION Sense Data "
"%02x %02x %02x %02x %02x %02x %02x %02x\n",
ha->host_no,
inq->p.rsp.req_sense_data[0],
inq->p.rsp.req_sense_data[1],
inq->p.rsp.req_sense_data[2],
inq->p.rsp.req_sense_data[3],
inq->p.rsp.req_sense_data[4],
inq->p.rsp.req_sense_data[5],
inq->p.rsp.req_sense_data[6],
inq->p.rsp.req_sense_data[7]));
}
/* Device underrun drop LUN. */
if (comp_status == CS_DATA_UNDERRUN &&
scsi_status & SS_RESIDUAL_UNDER) {
break;
}
} else {
break;
}
}
return (rval);
}
/*
* qla2x00_configure_fabric
* Setup SNS devices with loop ID's.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
* BIT_0 = error
*/
static int
qla2x00_configure_fabric(scsi_qla_host_t *ha)
{
int rval, rval2;
fc_port_t *fcport, *fcptemp;
uint16_t next_loopid;
uint16_t mb[MAILBOX_REGISTER_COUNT];
LIST_HEAD(new_fcports);
/* If FL port exists, then SNS is present */
rval = qla2x00_get_port_name(ha, SNS_FL_PORT, NULL, 0);
if (rval != QLA_SUCCESS) {
DEBUG2(printk("scsi(%ld): MBC_GET_PORT_NAME Failed, No FL "
"Port\n", ha->host_no));
ha->device_flags &= ~SWITCH_FOUND;
return (QLA_SUCCESS);
}
/* Mark devices that need re-synchronization. */
rval2 = qla2x00_device_resync(ha);
if (rval2 == QLA_RSCNS_HANDLED) {
/* No point doing the scan, just continue. */
return (QLA_SUCCESS);
}
do {
/* Ensure we are logged into the SNS. */
qla2x00_login_fabric(ha, SIMPLE_NAME_SERVER, 0xff, 0xff, 0xfc,
mb, BIT_1 | BIT_0);
if (mb[0] != MBS_COMMAND_COMPLETE) {
DEBUG2(qla_printk(KERN_INFO, ha,
"Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
"mb[2]=%x mb[6]=%x mb[7]=%x\n", SIMPLE_NAME_SERVER,
mb[0], mb[1], mb[2], mb[6], mb[7]));
return (QLA_SUCCESS);
}
if (test_and_clear_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags)) {
if (qla2x00_rft_id(ha)) {
/* EMPTY */
DEBUG2(printk("scsi(%ld): Register FC-4 "
"TYPE failed.\n", ha->host_no));
}
if (qla2x00_rff_id(ha)) {
/* EMPTY */
DEBUG2(printk("scsi(%ld): Register FC-4 "
"Features failed.\n", ha->host_no));
}
if (qla2x00_rnn_id(ha)) {
/* EMPTY */
DEBUG2(printk("scsi(%ld): Register Node Name "
"failed.\n", ha->host_no));
} else if (qla2x00_rsnn_nn(ha)) {
/* EMPTY */
DEBUG2(printk("scsi(%ld): Register Symbolic "
"Node Name failed.\n", ha->host_no));
}
}
rval = qla2x00_find_all_fabric_devs(ha, &new_fcports);
if (rval != QLA_SUCCESS)
break;
/*
* Logout all previous fabric devices marked lost, except
* tape devices.
*/
list_for_each_entry(fcport, &ha->fcports, list) {
if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
break;
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
continue;
if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
qla2x00_mark_device_lost(ha, fcport,
ql2xplogiabsentdevice);
if (fcport->loop_id != FC_NO_LOOP_ID &&
(fcport->flags & FCF_TAPE_PRESENT) == 0 &&
fcport->port_type != FCT_INITIATOR &&
fcport->port_type != FCT_BROADCAST) {
qla2x00_fabric_logout(ha,
fcport->loop_id);
fcport->loop_id = FC_NO_LOOP_ID;
}
}
}
/* Starting free loop ID. */
next_loopid = ha->min_external_loopid;
/*
* Scan through our port list and login entries that need to be
* logged in.
*/
list_for_each_entry(fcport, &ha->fcports, list) {
if (atomic_read(&ha->loop_down_timer) ||
test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
break;
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
(fcport->flags & FCF_LOGIN_NEEDED) == 0)
continue;
if (fcport->loop_id == FC_NO_LOOP_ID) {
fcport->loop_id = next_loopid;
rval = qla2x00_find_new_loop_id(ha, fcport);
if (rval != QLA_SUCCESS) {
/* Ran out of IDs to use */
break;
}
}
/* Login and update database */
qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
}
/* Exit if out of loop IDs. */
if (rval != QLA_SUCCESS) {
break;
}
/*
* Login and add the new devices to our port list.
*/
list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
if (atomic_read(&ha->loop_down_timer) ||
test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
break;
/* Find a new loop ID to use. */
fcport->loop_id = next_loopid;
rval = qla2x00_find_new_loop_id(ha, fcport);
if (rval != QLA_SUCCESS) {
/* Ran out of IDs to use */
break;
}
/* Login and update database */
qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
/* Remove device from the new list and add it to DB */
list_del(&fcport->list);
list_add_tail(&fcport->list, &ha->fcports);
}
} while (0);
/* Free all new device structures not processed. */
list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
list_del(&fcport->list);
kfree(fcport);
}
if (rval) {
DEBUG2(printk("scsi(%ld): Configure fabric error exit: "
"rval=%d\n", ha->host_no, rval));
}
return (rval);
}
/*
* qla2x00_find_all_fabric_devs
*
* Input:
* ha = adapter block pointer.
* dev = database device entry pointer.
*
* Returns:
* 0 = success.
*
* Context:
* Kernel context.
*/
static int
qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
{
int rval;
uint16_t loop_id;
fc_port_t *fcport, *new_fcport, *fcptemp;
int found;
sw_info_t *swl;
int swl_idx;
int first_dev, last_dev;
port_id_t wrap, nxt_d_id;
rval = QLA_SUCCESS;
/* Try GID_PT to get device list, else GAN. */
swl = kmalloc(sizeof(sw_info_t) * MAX_FIBRE_DEVICES, GFP_ATOMIC);
if (swl == NULL) {
/*EMPTY*/
DEBUG2(printk("scsi(%ld): GID_PT allocations failed, fallback "
"on GA_NXT\n", ha->host_no));
} else {
memset(swl, 0, sizeof(sw_info_t) * MAX_FIBRE_DEVICES);
if (qla2x00_gid_pt(ha, swl) != QLA_SUCCESS) {
kfree(swl);
swl = NULL;
} else if (qla2x00_gpn_id(ha, swl) != QLA_SUCCESS) {
kfree(swl);
swl = NULL;
} else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
kfree(swl);
swl = NULL;
}
}
swl_idx = 0;
/* Allocate temporary fcport for any new fcports discovered. */
new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
if (new_fcport == NULL) {
if (swl)
kfree(swl);
return (QLA_MEMORY_ALLOC_FAILED);
}
new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
/* Set start port ID scan at adapter ID. */
first_dev = 1;
last_dev = 0;
/* Starting free loop ID. */
loop_id = ha->min_external_loopid;
for (; loop_id <= ha->last_loop_id; loop_id++) {
if (RESERVED_LOOP_ID(loop_id))
continue;
if (atomic_read(&ha->loop_down_timer) ||
test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
break;
if (swl != NULL) {
if (last_dev) {
wrap.b24 = new_fcport->d_id.b24;
} else {
new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
memcpy(new_fcport->node_name,
swl[swl_idx].node_name, WWN_SIZE);
memcpy(new_fcport->port_name,
swl[swl_idx].port_name, WWN_SIZE);
if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
last_dev = 1;
}
swl_idx++;
}
} else {
/* Send GA_NXT to the switch */
rval = qla2x00_ga_nxt(ha, new_fcport);
if (rval != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
"SNS scan failed -- assuming zero-entry "
"result...\n");
list_for_each_entry_safe(fcport, fcptemp,
new_fcports, list) {
list_del(&fcport->list);
kfree(fcport);
}
rval = QLA_SUCCESS;
break;
}
}
/* If wrap on switch device list, exit. */
if (first_dev) {
wrap.b24 = new_fcport->d_id.b24;
first_dev = 0;
} else if (new_fcport->d_id.b24 == wrap.b24) {
DEBUG2(printk("scsi(%ld): device wrap (%02x%02x%02x)\n",
ha->host_no, new_fcport->d_id.b.domain,
new_fcport->d_id.b.area, new_fcport->d_id.b.al_pa));
break;
}
/* Bypass if host adapter. */
if (new_fcport->d_id.b24 == ha->d_id.b24)
continue;
/* Bypass reserved domain fields. */
if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
continue;
/* Locate matching device in database. */
found = 0;
list_for_each_entry(fcport, &ha->fcports, list) {
if (memcmp(new_fcport->port_name, fcport->port_name,
WWN_SIZE))
continue;
found++;
/*
* If address the same and state FCS_ONLINE, nothing
* changed.
*/
if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
atomic_read(&fcport->state) == FCS_ONLINE) {
break;
}
/*
* If device was not a fabric device before.
*/
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
fcport->d_id.b24 = new_fcport->d_id.b24;
fcport->loop_id = FC_NO_LOOP_ID;
fcport->flags |= (FCF_FABRIC_DEVICE |
FCF_LOGIN_NEEDED);
fcport->flags &= ~FCF_PERSISTENT_BOUND;
break;
}
/*
* Port ID changed or device was marked to be updated;
* Log it out if still logged in and mark it for
* relogin later.
*/
fcport->d_id.b24 = new_fcport->d_id.b24;
fcport->flags |= FCF_LOGIN_NEEDED;
if (fcport->loop_id != FC_NO_LOOP_ID &&
(fcport->flags & FCF_TAPE_PRESENT) == 0 &&
fcport->port_type != FCT_INITIATOR &&
fcport->port_type != FCT_BROADCAST) {
qla2x00_fabric_logout(ha, fcport->loop_id);
fcport->loop_id = FC_NO_LOOP_ID;
}
break;
}
if (found)
continue;
/* If device was not in our fcports list, then add it. */
list_add_tail(&new_fcport->list, new_fcports);
/* Allocate a new replacement fcport. */
nxt_d_id.b24 = new_fcport->d_id.b24;
new_fcport = qla2x00_alloc_fcport(ha, GFP_KERNEL);
if (new_fcport == NULL) {
if (swl)
kfree(swl);
return (QLA_MEMORY_ALLOC_FAILED);
}
new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
new_fcport->d_id.b24 = nxt_d_id.b24;
}
if (swl)
kfree(swl);
if (new_fcport)
kfree(new_fcport);
if (!list_empty(new_fcports))
ha->device_flags |= DFLG_FABRIC_DEVICES;
return (rval);
}
/*
* qla2x00_find_new_loop_id
* Scan through our port list and find a new usable loop ID.
*
* Input:
* ha: adapter state pointer.
* dev: port structure pointer.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
int
qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev)
{
int rval;
int found;
fc_port_t *fcport;
uint16_t first_loop_id;
rval = QLA_SUCCESS;
/* Save starting loop ID. */
first_loop_id = dev->loop_id;
for (;;) {
/* Skip loop ID if already used by adapter. */
if (dev->loop_id == ha->loop_id) {
dev->loop_id++;
}
/* Skip reserved loop IDs. */
while (RESERVED_LOOP_ID(dev->loop_id)) {
dev->loop_id++;
}
/* Reset loop ID if passed the end. */
if (dev->loop_id > ha->last_loop_id) {
/* first loop ID. */
dev->loop_id = ha->min_external_loopid;
}
/* Check for loop ID being already in use. */
found = 0;
fcport = NULL;
list_for_each_entry(fcport, &ha->fcports, list) {
if (fcport->loop_id == dev->loop_id && fcport != dev) {
/* ID possibly in use */
found++;
break;
}
}
/* If not in use then it is free to use. */
if (!found) {
break;
}
/* ID in use. Try next value. */
dev->loop_id++;
/* If wrap around. No free ID to use. */
if (dev->loop_id == first_loop_id) {
dev->loop_id = FC_NO_LOOP_ID;
rval = QLA_FUNCTION_FAILED;
break;
}
}
return (rval);
}
/*
* qla2x00_device_resync
* Marks devices in the database that needs resynchronization.
*
* Input:
* ha = adapter block pointer.
*
* Context:
* Kernel context.
*/
static int
qla2x00_device_resync(scsi_qla_host_t *ha)
{
int rval;
int rval2;
uint32_t mask;
fc_port_t *fcport;
uint32_t rscn_entry;
uint8_t rscn_out_iter;
uint8_t format;
port_id_t d_id;
rval = QLA_RSCNS_HANDLED;
while (ha->rscn_out_ptr != ha->rscn_in_ptr ||
ha->flags.rscn_queue_overflow) {
rscn_entry = ha->rscn_queue[ha->rscn_out_ptr];
format = MSB(MSW(rscn_entry));
d_id.b.domain = LSB(MSW(rscn_entry));
d_id.b.area = MSB(LSW(rscn_entry));
d_id.b.al_pa = LSB(LSW(rscn_entry));
DEBUG(printk("scsi(%ld): RSCN queue entry[%d] = "
"[%02x/%02x%02x%02x].\n",
ha->host_no, ha->rscn_out_ptr, format, d_id.b.domain,
d_id.b.area, d_id.b.al_pa));
ha->rscn_out_ptr++;
if (ha->rscn_out_ptr == MAX_RSCN_COUNT)
ha->rscn_out_ptr = 0;
/* Skip duplicate entries. */
for (rscn_out_iter = ha->rscn_out_ptr;
!ha->flags.rscn_queue_overflow &&
rscn_out_iter != ha->rscn_in_ptr;
rscn_out_iter = (rscn_out_iter ==
(MAX_RSCN_COUNT - 1)) ? 0: rscn_out_iter + 1) {
if (rscn_entry != ha->rscn_queue[rscn_out_iter])
break;
DEBUG(printk("scsi(%ld): Skipping duplicate RSCN queue "
"entry found at [%d].\n", ha->host_no,
rscn_out_iter));
ha->rscn_out_ptr = rscn_out_iter;
}
/* Queue overflow, set switch default case. */
if (ha->flags.rscn_queue_overflow) {
DEBUG(printk("scsi(%ld): device_resync: rscn "
"overflow.\n", ha->host_no));
format = 3;
ha->flags.rscn_queue_overflow = 0;
}
switch (format) {
case 0:
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
!IS_QLA6312(ha) && !IS_QLA6322(ha) &&
ha->flags.init_done) {
/* Handle port RSCN via asyncronous IOCBs */
rval2 = qla2x00_handle_port_rscn(ha, rscn_entry,
NULL, 0);
if (rval2 == QLA_SUCCESS)
continue;
}
mask = 0xffffff;
break;
case 1:
mask = 0xffff00;
break;
case 2:
mask = 0xff0000;
break;
default:
mask = 0x0;
d_id.b24 = 0;
ha->rscn_out_ptr = ha->rscn_in_ptr;
break;
}
rval = QLA_SUCCESS;
/* Abort any outstanding IO descriptors. */
if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
qla2x00_cancel_io_descriptors(ha);
list_for_each_entry(fcport, &ha->fcports, list) {
if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
(fcport->d_id.b24 & mask) != d_id.b24 ||
fcport->port_type == FCT_BROADCAST)
continue;
if (atomic_read(&fcport->state) == FCS_ONLINE) {
if (format != 3 ||
fcport->port_type != FCT_INITIATOR) {
atomic_set(&fcport->state,
FCS_DEVICE_LOST);
}
}
fcport->flags &= ~FCF_FARP_DONE;
}
}
return (rval);
}
/*
* qla2x00_fabric_dev_login
* Login fabric target device and update FC port database.
*
* Input:
* ha: adapter state pointer.
* fcport: port structure list pointer.
* next_loopid: contains value of a new loop ID that can be used
* by the next login attempt.
*
* Returns:
* qla2x00 local function return status code.
*
* Context:
* Kernel context.
*/
static int
qla2x00_fabric_dev_login(scsi_qla_host_t *ha, fc_port_t *fcport,
uint16_t *next_loopid)
{
int rval;
int retry;
rval = QLA_SUCCESS;
retry = 0;
rval = qla2x00_fabric_login(ha, fcport, next_loopid);
if (rval == QLA_SUCCESS) {
rval = qla2x00_get_port_database(ha, fcport, 0);
if (rval != QLA_SUCCESS) {
qla2x00_fabric_logout(ha, fcport->loop_id);
} else {
qla2x00_update_fcport(ha, fcport);
}
}
return (rval);
}
/*
* qla2x00_fabric_login
* Issue fabric login command.
*
* Input:
* ha = adapter block pointer.
* device = pointer to FC device type structure.
*
* Returns:
* 0 - Login successfully
* 1 - Login failed
* 2 - Initiator device
* 3 - Fatal error
*/
int
qla2x00_fabric_login(scsi_qla_host_t *ha, fc_port_t *fcport,
uint16_t *next_loopid)
{
int rval;
int retry;
uint16_t tmp_loopid;
uint16_t mb[MAILBOX_REGISTER_COUNT];
retry = 0;
tmp_loopid = 0;
for (;;) {
DEBUG(printk("scsi(%ld): Trying Fabric Login w/loop id 0x%04x "
"for port %02x%02x%02x.\n",
ha->host_no, fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa));
/* Login fcport on switch. */
qla2x00_login_fabric(ha, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, mb, BIT_0);
if (mb[0] == MBS_PORT_ID_USED) {
/*
* Device has another loop ID. The firmware team
* recommends us to perform an implicit login with the
* specified ID again. The ID we just used is save here
* so we return with an ID that can be tried by the
* next login.
*/
retry++;
tmp_loopid = fcport->loop_id;
fcport->loop_id = mb[1];
DEBUG(printk("Fabric Login: port in use - next "
"loop id=0x%04x, port Id=%02x%02x%02x.\n",
fcport->loop_id, fcport->d_id.b.domain,
fcport->d_id.b.area, fcport->d_id.b.al_pa));
} else if (mb[0] == MBS_COMMAND_COMPLETE) {
/*
* Login succeeded.
*/
if (retry) {
/* A retry occurred before. */
*next_loopid = tmp_loopid;
} else {
/*
* No retry occurred before. Just increment the
* ID value for next login.
*/
*next_loopid = (fcport->loop_id + 1);
}
if (mb[1] & BIT_0) {
fcport->port_type = FCT_INITIATOR;
} else {
fcport->port_type = FCT_TARGET;
if (mb[1] & BIT_1) {
fcport->flags |= FCF_TAPE_PRESENT;
}
}
rval = QLA_SUCCESS;
break;
} else if (mb[0] == MBS_LOOP_ID_USED) {
/*
* Loop ID already used, try next loop ID.
*/
fcport->loop_id++;
rval = qla2x00_find_new_loop_id(ha, fcport);
if (rval != QLA_SUCCESS) {
/* Ran out of loop IDs to use */
break;
}
} else if (mb[0] == MBS_COMMAND_ERROR) {
/*
* Firmware possibly timed out during login. If NO
* retries are left to do then the device is declared
* dead.
*/
*next_loopid = fcport->loop_id;
qla2x00_fabric_logout(ha, fcport->loop_id);
qla2x00_mark_device_lost(ha, fcport, 1);
rval = 1;
break;
} else {
/*
* unrecoverable / not handled error
*/
DEBUG2(printk("%s(%ld): failed=%x port_id=%02x%02x%02x "
"loop_id=%x jiffies=%lx.\n",
__func__, ha->host_no, mb[0],
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa, fcport->loop_id, jiffies));
*next_loopid = fcport->loop_id;
qla2x00_fabric_logout(ha, fcport->loop_id);
fcport->loop_id = FC_NO_LOOP_ID;
atomic_set(&fcport->state, FCS_DEVICE_DEAD);
rval = 3;
break;
}
}
return (rval);
}
/*
* qla2x00_local_device_login
* Issue local device login command.
*
* Input:
* ha = adapter block pointer.
* loop_id = loop id of device to login to.
*
* Returns (Where's the #define!!!!):
* 0 - Login successfully
* 1 - Login failed
* 3 - Fatal error
*/
int
qla2x00_local_device_login(scsi_qla_host_t *ha, uint16_t loop_id)
{
int rval;
uint16_t mb[MAILBOX_REGISTER_COUNT];
memset(mb, 0, sizeof(mb));
rval = qla2x00_login_local_device(ha, loop_id, mb, BIT_0);
if (rval == QLA_SUCCESS) {
/* Interrogate mailbox registers for any errors */
if (mb[0] == MBS_COMMAND_ERROR)
rval = 1;
else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
/* device not in PCB table */
rval = 3;
}
return (rval);
}
/*
* qla2x00_loop_resync
* Resync with fibre channel devices.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_loop_resync(scsi_qla_host_t *ha)
{
int rval;
uint32_t wait_time;
rval = QLA_SUCCESS;
atomic_set(&ha->loop_state, LOOP_UPDATE);
qla2x00_stats.loop_resync++;
clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
if (ha->flags.online) {
if (!(rval = qla2x00_fw_ready(ha))) {
/* Wait at most MAX_TARGET RSCNs for a stable link. */
wait_time = 256;
do {
/* v2.19.05b6 */
atomic_set(&ha->loop_state, LOOP_UPDATE);
/*
* Issue marker command only when we are going
* to start the I/O .
*/
ha->marker_needed = 1;
/* Remap devices on Loop. */
clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
qla2x00_configure_loop(ha);
wait_time--;
} while (!atomic_read(&ha->loop_down_timer) &&
!(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
wait_time &&
(test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
}
qla2x00_restart_queues(ha, 1);
}
if (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
return (QLA_FUNCTION_FAILED);
}
if (rval) {
DEBUG2_3(printk("%s(): **** FAILED ****\n", __func__));
}
return (rval);
}
/*
* qla2x00_restart_queues
* Restart device queues.
*
* Input:
* ha = adapter block pointer.
*
* Context:
* Kernel/Interrupt context.
*/
void
qla2x00_restart_queues(scsi_qla_host_t *ha, uint8_t flush)
{
srb_t *sp;
int retry_q_cnt = 0;
int pending_q_cnt = 0;
struct list_head *list, *temp;
unsigned long flags = 0;
clear_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
/* start pending queue */
pending_q_cnt = ha->qthreads;
if (flush) {
spin_lock_irqsave(&ha->list_lock,flags);
list_for_each_safe(list, temp, &ha->pending_queue) {
sp = list_entry(list, srb_t, list);
if ((sp->flags & SRB_TAPE))
continue;
/*
* When time expire return request back to OS as BUSY
*/
__del_from_pending_queue(ha, sp);
sp->cmd->result = DID_BUS_BUSY << 16;
sp->cmd->host_scribble = (unsigned char *)NULL;
__add_to_done_queue(ha, sp);
}
spin_unlock_irqrestore(&ha->list_lock, flags);
} else {
if (!list_empty(&ha->pending_queue))
qla2x00_next(ha);
}
/*
* Clear out our retry queue
*/
if (flush) {
spin_lock_irqsave(&ha->list_lock, flags);
retry_q_cnt = ha->retry_q_cnt;
list_for_each_safe(list, temp, &ha->retry_queue) {
sp = list_entry(list, srb_t, list);
/* when time expire return request back to OS as BUSY */
__del_from_retry_queue(ha, sp);
sp->cmd->result = DID_BUS_BUSY << 16;
sp->cmd->host_scribble = (unsigned char *)NULL;
__add_to_done_queue(ha, sp);
}
spin_unlock_irqrestore(&ha->list_lock, flags);
DEBUG2(printk("%s(%ld): callback %d commands.\n",
__func__,
ha->host_no,
retry_q_cnt);)
}
DEBUG2(printk("%s(%ld): active=%ld, retry=%d, pending=%d, "
"done=%ld, scsi retry=%d commands.\n",
__func__,
ha->host_no,
ha->actthreads,
ha->retry_q_cnt,
pending_q_cnt,
ha->done_q_cnt,
ha->scsi_retry_q_cnt);)
if (!list_empty(&ha->done_queue))
qla2x00_done(ha);
}
void
qla2x00_rescan_fcports(scsi_qla_host_t *ha)
{
int rescan_done;
fc_port_t *fcport;
rescan_done = 0;
list_for_each_entry(fcport, &ha->fcports, list) {
if ((fcport->flags & FCF_RESCAN_NEEDED) == 0)
continue;
qla2x00_update_fcport(ha, fcport);
fcport->flags &= ~FCF_RESCAN_NEEDED;
rescan_done = 1;
}
qla2x00_probe_for_all_luns(ha);
/* Update OS target and lun structures if necessary. */
if (rescan_done) {
qla2x00_config_os(ha);
}
}
/*
* qla2x00_config_os
* Setup OS target and LUN structures.
*
* Input:
* ha = adapter state pointer.
*
* Context:
* Kernel context.
*/
static void
qla2x00_config_os(scsi_qla_host_t *ha)
{
fc_port_t *fcport;
fc_lun_t *fclun;
os_tgt_t *tq;
uint16_t tgt;
for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
if ((tq = TGT_Q(ha, tgt)) == NULL)
continue;
clear_bit(TQF_ONLINE, &tq->flags);
}
list_for_each_entry(fcport, &ha->fcports, list) {
if (atomic_read(&fcport->state) != FCS_ONLINE ||
fcport->port_type == FCT_INITIATOR ||
fcport->port_type == FCT_BROADCAST) {
fcport->os_target_id = MAX_TARGETS;
continue;
}
if (fcport->flags & FCF_FO_MASKED) {
continue;
}
/* Bind FC port to OS target number. */
if (qla2x00_fcport_bind(ha, fcport) == MAX_TARGETS) {
continue;
}
/* Bind FC LUN to OS LUN number. */
list_for_each_entry(fclun, &fcport->fcluns, list) {
qla2x00_fclun_bind(ha, fcport, fclun);
}
}
}
/*
* qla2x00_fcport_bind
* Locates a target number for FC port.
*
* Input:
* ha = adapter state pointer.
* fcport = FC port structure pointer.
*
* Returns:
* target number
*
* Context:
* Kernel context.
*/
static uint16_t
qla2x00_fcport_bind(scsi_qla_host_t *ha, fc_port_t *fcport)
{
int found;
uint16_t tgt;
os_tgt_t *tq;
/* Check for persistent binding. */
for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
if ((tq = TGT_Q(ha, tgt)) == NULL)
continue;
found = 0;
switch (ha->binding_type) {
case BIND_BY_PORT_ID:
if (fcport->d_id.b24 == tq->d_id.b24) {
memcpy(tq->node_name, fcport->node_name,
WWN_SIZE);
memcpy(tq->port_name, fcport->port_name,
WWN_SIZE);
found++;
}
break;
case BIND_BY_PORT_NAME:
if (memcmp(fcport->port_name, tq->port_name,
WWN_SIZE) == 0) {
/*
* In case of persistent binding, update the
* WWNN.
*/
memcpy(tq->node_name, fcport->node_name,
WWN_SIZE);
found++;
}
break;
}
if (found)
break;
}
/* TODO: honor the ConfigRequired flag */
if (tgt == MAX_TARGETS) {
/* Check if targetID 0 available. */
tgt = 0;
if (TGT_Q(ha, tgt) != NULL) {
/* Locate first free target for device. */
for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
if (TGT_Q(ha, tgt) == NULL) {
break;
}
}
}
if (tgt != MAX_TARGETS) {
if ((tq = qla2x00_tgt_alloc(ha, tgt)) != NULL) {
memcpy(tq->node_name, fcport->node_name,
WWN_SIZE);
memcpy(tq->port_name, fcport->port_name,
WWN_SIZE);
tq->d_id.b24 = fcport->d_id.b24;
}
}
}
/* Reset target numbers incase it changed. */
fcport->os_target_id = tgt;
if (tgt != MAX_TARGETS && tq != NULL) {
DEBUG2(printk("scsi(%ld): Assigning target ID=%02d @ %p to "
"loop id=0x%04x, port state=0x%x, port down retry=%d\n",
ha->host_no, tgt, tq, fcport->loop_id,
atomic_read(&fcport->state),
atomic_read(&fcport->port_down_timer)));
fcport->tgt_queue = tq;
fcport->flags |= FCF_PERSISTENT_BOUND;
tq->fcport = fcport;
set_bit(TQF_ONLINE, &tq->flags);
tq->port_down_retry_count = ha->port_down_retry_count;
}
if (tgt == MAX_TARGETS) {
qla_printk(KERN_WARNING, ha,
"Unable to bind fcport, loop_id=%x\n", fcport->loop_id);
}
return (tgt);
}
/*
* qla2x00_fclun_bind
* Binds all FC device LUNS to OS LUNS.
*
* Input:
* ha: adapter state pointer.
* fcport: FC port structure pointer.
*
* Returns:
* target number
*
* Context:
* Kernel context.
*/
static os_lun_t *
qla2x00_fclun_bind(scsi_qla_host_t *ha, fc_port_t *fcport, fc_lun_t *fclun)
{
os_lun_t *lq;
uint16_t tgt;
uint16_t lun;
tgt = fcport->os_target_id;
lun = fclun->lun;
/* Allocate LUNs */
if (lun >= MAX_LUNS) {
DEBUG2(printk("scsi(%ld): Unable to bind lun, invalid "
"lun=(%x).\n", ha->host_no, lun));
return (NULL);
}
/* Always alloc LUN 0 so kernel will scan past LUN 0. */
if (lun != 0 && (EXT_IS_LUN_BIT_SET(&(fcport->lun_mask), lun))) {
return (NULL);
}
if ((lq = qla2x00_lun_alloc(ha, tgt, lun)) == NULL) {
qla_printk(KERN_WARNING, ha,
"Unable to bind fclun, loop_id=%x lun=%x\n",
fcport->loop_id, lun);
return (NULL);
}
lq->fclun = fclun;
return (lq);
}
/*
* qla2x00_tgt_alloc
* Allocate and pre-initialize target queue.
*
* Input:
* ha = adapter block pointer.
* t = SCSI target number.
*
* Returns:
* NULL = failure
*
* Context:
* Kernel context.
*/
static os_tgt_t *
qla2x00_tgt_alloc(scsi_qla_host_t *ha, uint16_t tgt)
{
os_tgt_t *tq;
/*
* If SCSI addressing OK, allocate TGT queue and lock.
*/
if (tgt >= MAX_TARGETS) {
DEBUG2(printk("scsi(%ld): Unable to allocate target, invalid "
"target number %d.\n", ha->host_no, tgt));
return (NULL);
}
tq = TGT_Q(ha, tgt);
if (tq == NULL) {
tq = kmalloc(sizeof(os_tgt_t), GFP_ATOMIC);
if (tq != NULL) {
DEBUG2(printk("scsi(%ld): Alloc Target %d @ %p\n",
ha->host_no, tgt, tq));
memset(tq, 0, sizeof(os_tgt_t));
tq->ha = ha;
TGT_Q(ha, tgt) = tq;
}
}
if (tq != NULL) {
tq->port_down_retry_count = ha->port_down_retry_count;
} else {
qla_printk(KERN_WARNING, ha,
"Unable to allocate target.\n");
ha->mem_err++;
}
return (tq);
}
/*
* qla2x00_tgt_free
* Frees target and LUN queues.
*
* Input:
* ha = adapter block pointer.
* t = SCSI target number.
*
* Context:
* Kernel context.
*/
void
qla2x00_tgt_free(scsi_qla_host_t *ha, uint16_t tgt)
{
os_tgt_t *tq;
uint16_t lun;
/*
* If SCSI addressing OK, allocate TGT queue and lock.
*/
if (tgt >= MAX_TARGETS) {
DEBUG2(printk("scsi(%ld): Unable to de-allocate target, "
"invalid target number %d.\n", ha->host_no, tgt));
return;
}
tq = TGT_Q(ha, tgt);
if (tq != NULL) {
TGT_Q(ha, tgt) = NULL;
/* Free LUN structures. */
for (lun = 0; lun < MAX_LUNS; lun++)
qla2x00_lun_free(ha, tgt, lun);
kfree(tq);
}
return;
}
/*
* qla2x00_lun_alloc
* Allocate and initialize LUN queue.
*
* Input:
* ha = adapter block pointer.
* t = SCSI target number.
* l = LUN number.
*
* Returns:
* NULL = failure
*
* Context:
* Kernel context.
*/
static os_lun_t *
qla2x00_lun_alloc(scsi_qla_host_t *ha, uint16_t tgt, uint16_t lun)
{
os_lun_t *lq;
/*
* If SCSI addressing OK, allocate LUN queue.
*/
if (tgt >= MAX_TARGETS || lun >= MAX_LUNS || TGT_Q(ha, tgt) == NULL) {
DEBUG2(printk("scsi(%ld): Unable to allocate lun, invalid "
"parameter.\n", ha->host_no));
return (NULL);
}
lq = LUN_Q(ha, tgt, lun);
if (lq == NULL) {
lq = kmalloc(sizeof(os_lun_t), GFP_ATOMIC);
if (lq != NULL) {
DEBUG2(printk("scsi(%ld): Alloc Lun %d @ tgt %d.\n",
ha->host_no, lun, tgt));
memset(lq, 0, sizeof(os_lun_t));
LUN_Q(ha, tgt, lun) = lq;
/*
* The following lun queue initialization code
* must be duplicated in alloc_ioctl_mem function
* for ioctl_lq.
*/
lq->q_state = LUN_STATE_READY;
spin_lock_init(&lq->q_lock);
}
}
if (lq == NULL) {
qla_printk(KERN_WARNING, ha, "Unable to allocate lun.\n");
}
return (lq);
}
/*
* qla2x00_lun_free
* Frees LUN queue.
*
* Input:
* ha = adapter block pointer.
* t = SCSI target number.
*
* Context:
* Kernel context.
*/
static void
qla2x00_lun_free(scsi_qla_host_t *ha, uint16_t tgt, uint16_t lun)
{
os_lun_t *lq;
/*
* If SCSI addressing OK, allocate TGT queue and lock.
*/
if (tgt >= MAX_TARGETS || lun >= MAX_LUNS) {
DEBUG2(printk("scsi(%ld): Unable to deallocate lun, invalid "
"parameter.\n", ha->host_no));
return;
}
if (TGT_Q(ha, tgt) != NULL && (lq = LUN_Q(ha, tgt, lun)) != NULL) {
LUN_Q(ha, tgt, lun) = NULL;
kfree(lq);
}
return;
}
/*
* qla2x00_abort_isp
* Resets ISP and aborts all outstanding commands.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_abort_isp(scsi_qla_host_t *ha)
{
unsigned long flags = 0;
uint16_t cnt;
srb_t *sp;
uint8_t status = 0;
if (ha->flags.online) {
ha->flags.online = 0;
clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
qla2x00_stats.ispAbort++;
ha->total_isp_aborts++; /* used by ioctl */
ha->sns_retry_cnt = 0;
qla_printk(KERN_INFO, ha,
"Performing ISP error recovery - ha= %p.\n", ha);
qla2x00_reset_chip(ha);
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
qla2x00_mark_all_devices_lost(ha);
} else {
if (!atomic_read(&ha->loop_down_timer))
atomic_set(&ha->loop_down_timer,
LOOP_DOWN_TIME);
}
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Requeue all commands in outstanding command list. */
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
sp = ha->outstanding_cmds[cnt];
if (sp) {
ha->outstanding_cmds[cnt] = NULL;
if (ha->actthreads)
ha->actthreads--;
sp->lun_queue->out_cnt--;
/*
* Set the cmd host_byte status depending on
* whether the scsi_error_handler is
* active or not.
*/
if (sp->flags & SRB_TAPE) {
sp->cmd->result = DID_NO_CONNECT << 16;
} else {
if (ha->host->eh_active != EH_ACTIVE)
sp->cmd->result =
DID_BUS_BUSY << 16;
else
sp->cmd->result =
DID_RESET << 16;
}
sp->flags = 0;
sp->cmd->host_scribble = (unsigned char *)NULL;
add_to_done_queue(ha, sp);
}
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_nvram_config(ha);
if (!qla2x00_restart_isp(ha)) {
clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
if (!atomic_read(&ha->loop_down_timer)) {
/*
* Issue marker command only when we are going
* to start the I/O .
*/
ha->marker_needed = 1;
}
ha->flags.online = 1;
/* Enable ISP interrupts. */
qla2x00_enable_intrs(ha);
/* v2.19.5b6 Return all commands */
qla2x00_abort_queues(ha, 1);
/* Restart queues that may have been stopped. */
qla2x00_restart_queues(ha, 1);
ha->isp_abort_cnt = 0;
clear_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
} else { /* failed the ISP abort */
ha->flags.online = 1;
if (test_bit(ISP_ABORT_RETRY, &ha->dpc_flags)) {
if (ha->isp_abort_cnt == 0) {
qla_printk(KERN_WARNING, ha,
"ISP error recovery failed - "
"board disabled\n");
/*
* The next call disables the board
* completely.
*/
qla2x00_reset_adapter(ha);
qla2x00_abort_queues(ha, 0);
ha->flags.online = 0;
clear_bit(ISP_ABORT_RETRY,
&ha->dpc_flags);
status = 0;
} else { /* schedule another ISP abort */
ha->isp_abort_cnt--;
DEBUG(printk("qla%ld: ISP abort - "
"retry remainning %d\n",
ha->host_no, ha->isp_abort_cnt);)
status = 1;
}
} else {
ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
DEBUG(printk("qla2x00(%ld): ISP error recovery "
"- retrying (%d) more times\n",
ha->host_no, ha->isp_abort_cnt);)
set_bit(ISP_ABORT_RETRY, &ha->dpc_flags);
status = 1;
}
}
}
if (status) {
qla_printk(KERN_INFO, ha,
"qla2x00_abort_isp: **** FAILED ****\n");
} else {
DEBUG(printk(KERN_INFO
"qla2x00_abort_isp(%ld): exiting.\n",
ha->host_no);)
}
return(status);
}
/*
* qla2x00_restart_isp
* restarts the ISP after a reset
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
static int
qla2x00_restart_isp(scsi_qla_host_t *ha)
{
uint8_t status = 0;
device_reg_t __iomem *reg = ha->iobase;
unsigned long flags = 0;
uint32_t wait_time;
/* If firmware needs to be loaded */
if (qla2x00_isp_firmware(ha)) {
ha->flags.online = 0;
if (!(status = qla2x00_chip_diag(ha))) {
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
status = qla2x00_setup_chip(ha);
goto done;
}
reg = ha->iobase;
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Disable SRAM, Instruction RAM and GP RAM parity. */
WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
status = qla2x00_setup_chip(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Enable proper parity */
if (IS_QLA2300(ha))
/* SRAM parity */
WRT_REG_WORD(&reg->hccr,
(HCCR_ENABLE_PARITY + 0x1));
else
/* SRAM, Instruction RAM and GP RAM parity */
WRT_REG_WORD(&reg->hccr,
(HCCR_ENABLE_PARITY + 0x7));
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
}
done:
if (!status && !(status = qla2x00_init_rings(ha))) {
clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
if (!(status = qla2x00_fw_ready(ha))) {
DEBUG(printk("%s(): Start configure loop, "
"status = %d\n",
__func__,
status);)
ha->flags.online = 1;
/* Wait at most MAX_TARGET RSCNs for a stable link. */
wait_time = 256;
do {
clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
qla2x00_configure_loop(ha);
wait_time--;
} while (!atomic_read(&ha->loop_down_timer) &&
!(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) &&
wait_time &&
(test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)));
}
/* if no cable then assume it's good */
if ((ha->device_flags & DFLG_NO_CABLE))
status = 0;
DEBUG(printk("%s(): Configure loop done, status = 0x%x\n",
__func__,
status);)
}
return (status);
}
/*
* qla2x00_reset_adapter
* Reset adapter.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla2x00_reset_adapter(scsi_qla_host_t *ha)
{
unsigned long flags = 0;
device_reg_t __iomem *reg = ha->iobase;
ha->flags.online = 0;
qla2x00_disable_intrs(ha);
/* Reset RISC processor. */
spin_lock_irqsave(&ha->hardware_lock, flags);
WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
RD_REG_WORD(&reg->hccr); /* PCI Posting. */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}