diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_nx2.c | 4075 |
1 files changed, 4075 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nx2.c b/drivers/scsi/qla2xxx/qla_nx2.c new file mode 100644 index 000000000..41ff6fbdb --- /dev/null +++ b/drivers/scsi/qla2xxx/qla_nx2.c @@ -0,0 +1,4075 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * QLogic Fibre Channel HBA Driver + * Copyright (c) 2003-2014 QLogic Corporation + */ + +#include <linux/vmalloc.h> +#include <linux/delay.h> + +#include "qla_def.h" +#include "qla_gbl.h" + +#define TIMEOUT_100_MS 100 + +static const uint32_t qla8044_reg_tbl[] = { + QLA8044_PEG_HALT_STATUS1, + QLA8044_PEG_HALT_STATUS2, + QLA8044_PEG_ALIVE_COUNTER, + QLA8044_CRB_DRV_ACTIVE, + QLA8044_CRB_DEV_STATE, + QLA8044_CRB_DRV_STATE, + QLA8044_CRB_DRV_SCRATCH, + QLA8044_CRB_DEV_PART_INFO1, + QLA8044_CRB_IDC_VER_MAJOR, + QLA8044_FW_VER_MAJOR, + QLA8044_FW_VER_MINOR, + QLA8044_FW_VER_SUB, + QLA8044_CMDPEG_STATE, + QLA8044_ASIC_TEMP, +}; + +/* 8044 Flash Read/Write functions */ +uint32_t +qla8044_rd_reg(struct qla_hw_data *ha, ulong addr) +{ + return readl((void __iomem *) (ha->nx_pcibase + addr)); +} + +void +qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val) +{ + writel(val, (void __iomem *)((ha)->nx_pcibase + addr)); +} + +int +qla8044_rd_direct(struct scsi_qla_host *vha, + const uint32_t crb_reg) +{ + struct qla_hw_data *ha = vha->hw; + + if (crb_reg < CRB_REG_INDEX_MAX) + return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]); + else + return QLA_FUNCTION_FAILED; +} + +void +qla8044_wr_direct(struct scsi_qla_host *vha, + const uint32_t crb_reg, + const uint32_t value) +{ + struct qla_hw_data *ha = vha->hw; + + if (crb_reg < CRB_REG_INDEX_MAX) + qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value); +} + +static int +qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr) +{ + uint32_t val; + int ret_val = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr); + val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum)); + + if (val != addr) { + ql_log(ql_log_warn, vha, 0xb087, + "%s: Failed to set register window : " + "addr written 0x%x, read 0x%x!\n", + __func__, addr, val); + ret_val = QLA_FUNCTION_FAILED; + } + return ret_val; +} + +static int +qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data) +{ + int ret_val = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + ret_val = qla8044_set_win_base(vha, addr); + if (!ret_val) + *data = qla8044_rd_reg(ha, QLA8044_WILDCARD); + else + ql_log(ql_log_warn, vha, 0xb088, + "%s: failed read of addr 0x%x!\n", __func__, addr); + return ret_val; +} + +static int +qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data) +{ + int ret_val = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + ret_val = qla8044_set_win_base(vha, addr); + if (!ret_val) + qla8044_wr_reg(ha, QLA8044_WILDCARD, data); + else + ql_log(ql_log_warn, vha, 0xb089, + "%s: failed wrt to addr 0x%x, data 0x%x\n", + __func__, addr, data); + return ret_val; +} + +/* + * qla8044_read_write_crb_reg - Read from raddr and write value to waddr. + * + * @ha : Pointer to adapter structure + * @raddr : CRB address to read from + * @waddr : CRB address to write to + * + */ +static void +qla8044_read_write_crb_reg(struct scsi_qla_host *vha, + uint32_t raddr, uint32_t waddr) +{ + uint32_t value; + + qla8044_rd_reg_indirect(vha, raddr, &value); + qla8044_wr_reg_indirect(vha, waddr, value); +} + +static int +qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1, + uint32_t mask) +{ + unsigned long timeout; + uint32_t temp = 0; + + /* jiffies after 100ms */ + timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS); + do { + qla8044_rd_reg_indirect(vha, addr1, &temp); + if ((temp & mask) != 0) + break; + if (time_after_eq(jiffies, timeout)) { + ql_log(ql_log_warn, vha, 0xb151, + "Error in processing rdmdio entry\n"); + return -1; + } + } while (1); + + return 0; +} + +static uint32_t +qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha, + uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr) +{ + uint32_t temp; + int ret = 0; + + ret = qla8044_poll_wait_for_ready(vha, addr1, mask); + if (ret == -1) + return -1; + + temp = (0x40000000 | addr); + qla8044_wr_reg_indirect(vha, addr1, temp); + + ret = qla8044_poll_wait_for_ready(vha, addr1, mask); + if (ret == -1) + return 0; + + qla8044_rd_reg_indirect(vha, addr3, &ret); + + return ret; +} + + +static int +qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha, + uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask) +{ + unsigned long timeout; + uint32_t temp; + + /* jiffies after 100 msecs */ + timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS); + do { + temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2); + if ((temp & 0x1) != 1) + break; + if (time_after_eq(jiffies, timeout)) { + ql_log(ql_log_warn, vha, 0xb152, + "Error in processing mdiobus idle\n"); + return -1; + } + } while (1); + + return 0; +} + +static int +qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1, + uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value) +{ + int ret = 0; + + ret = qla8044_poll_wait_for_ready(vha, addr1, mask); + if (ret == -1) + return -1; + + qla8044_wr_reg_indirect(vha, addr3, value); + qla8044_wr_reg_indirect(vha, addr1, addr); + + ret = qla8044_poll_wait_for_ready(vha, addr1, mask); + if (ret == -1) + return -1; + + return 0; +} +/* + * qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask, + * Shift Left,Right/OR/XOR with values RMW header and write value to waddr. + * + * @vha : Pointer to adapter structure + * @raddr : CRB address to read from + * @waddr : CRB address to write to + * @p_rmw_hdr : header with shift/or/xor values. + * + */ +static void +qla8044_rmw_crb_reg(struct scsi_qla_host *vha, + uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr) +{ + uint32_t value; + + if (p_rmw_hdr->index_a) + value = vha->reset_tmplt.array[p_rmw_hdr->index_a]; + else + qla8044_rd_reg_indirect(vha, raddr, &value); + value &= p_rmw_hdr->test_mask; + value <<= p_rmw_hdr->shl; + value >>= p_rmw_hdr->shr; + value |= p_rmw_hdr->or_value; + value ^= p_rmw_hdr->xor_value; + qla8044_wr_reg_indirect(vha, waddr, value); + return; +} + +static inline void +qla8044_set_qsnt_ready(struct scsi_qla_host *vha) +{ + uint32_t qsnt_state; + struct qla_hw_data *ha = vha->hw; + + qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); + qsnt_state |= (1 << ha->portnum); + qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state); + ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n", + __func__, vha->host_no, qsnt_state); +} + +void +qla8044_clear_qsnt_ready(struct scsi_qla_host *vha) +{ + uint32_t qsnt_state; + struct qla_hw_data *ha = vha->hw; + + qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); + qsnt_state &= ~(1 << ha->portnum); + qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state); + ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n", + __func__, vha->host_no, qsnt_state); +} + +/** + * qla8044_lock_recovery - Recovers the idc_lock. + * @vha : Pointer to adapter structure + * + * Lock Recovery Register + * 5-2 Lock recovery owner: Function ID of driver doing lock recovery, + * valid if bits 1..0 are set by driver doing lock recovery. + * 1-0 1 - Driver intends to force unlock the IDC lock. + * 2 - Driver is moving forward to unlock the IDC lock. Driver clears + * this field after force unlocking the IDC lock. + * + * Lock Recovery process + * a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is + * greater than 0, then wait for the other driver to unlock otherwise + * move to the next step. + * b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY + * register bits 1..0 and also set the function# in bits 5..2. + * c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms. + * Wait for the other driver to perform lock recovery if the function + * number in bits 5..2 has changed, otherwise move to the next step. + * d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0 + * leaving your function# in bits 5..2. + * e. Force unlock using the DRIVER_UNLOCK register and immediately clear + * the IDC_LOCK_RECOVERY bits 5..0 by writing 0. + **/ +static int +qla8044_lock_recovery(struct scsi_qla_host *vha) +{ + uint32_t lock = 0, lockid; + struct qla_hw_data *ha = vha->hw; + + lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY); + + /* Check for other Recovery in progress, go wait */ + if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0) + return QLA_FUNCTION_FAILED; + + /* Intent to Recover */ + qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, + (ha->portnum << + IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER); + msleep(200); + + /* Check Intent to Recover is advertised */ + lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY); + if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum << + IDC_LOCK_RECOVERY_STATE_SHIFT_BITS)) + return QLA_FUNCTION_FAILED; + + ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n" + , __func__, ha->portnum); + + /* Proceed to Recover */ + qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, + (ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | + PROCEED_TO_RECOVER); + + /* Force Unlock() */ + qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF); + qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK); + + /* Clear bits 0-5 in IDC_RECOVERY register*/ + qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0); + + /* Get lock() */ + lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK); + if (lock) { + lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); + lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum; + qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid); + return QLA_SUCCESS; + } else + return QLA_FUNCTION_FAILED; +} + +int +qla8044_idc_lock(struct qla_hw_data *ha) +{ + uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0; + uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0; + scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); + + while (status == 0) { + /* acquire semaphore5 from PCI HW block */ + status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK); + + if (status) { + /* Increment Counter (8-31) and update func_num (0-7) on + * getting a successful lock */ + lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); + lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum; + qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id); + break; + } + + if (timeout == 0) + first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); + + if (++timeout >= + (QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) { + tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); + func_num = tmo_owner & 0xFF; + lock_cnt = tmo_owner >> 8; + ql_log(ql_log_warn, vha, 0xb114, + "%s: Lock by func %d failed after 2s, lock held " + "by func %d, lock count %d, first_owner %d\n", + __func__, ha->portnum, func_num, lock_cnt, + (first_owner & 0xFF)); + if (first_owner != tmo_owner) { + /* Some other driver got lock, + * OR same driver got lock again (counter + * value changed), when we were waiting for + * lock. Retry for another 2 sec */ + ql_dbg(ql_dbg_p3p, vha, 0xb115, + "%s: %d: IDC lock failed\n", + __func__, ha->portnum); + timeout = 0; + } else { + /* Same driver holding lock > 2sec. + * Force Recovery */ + if (qla8044_lock_recovery(vha) == QLA_SUCCESS) { + /* Recovered and got lock */ + ret_val = QLA_SUCCESS; + ql_dbg(ql_dbg_p3p, vha, 0xb116, + "%s:IDC lock Recovery by %d" + "successful...\n", __func__, + ha->portnum); + } + /* Recovery Failed, some other function + * has the lock, wait for 2secs + * and retry + */ + ql_dbg(ql_dbg_p3p, vha, 0xb08a, + "%s: IDC lock Recovery by %d " + "failed, Retrying timeout\n", __func__, + ha->portnum); + timeout = 0; + } + } + msleep(QLA8044_DRV_LOCK_MSLEEP); + } + return ret_val; +} + +void +qla8044_idc_unlock(struct qla_hw_data *ha) +{ + int id; + scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); + + id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID); + + if ((id & 0xFF) != ha->portnum) { + ql_log(ql_log_warn, vha, 0xb118, + "%s: IDC Unlock by %d failed, lock owner is %d!\n", + __func__, ha->portnum, (id & 0xFF)); + return; + } + + /* Keep lock counter value, update the ha->func_num to 0xFF */ + qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF)); + qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK); +} + +/* 8044 Flash Lock/Unlock functions */ +static int +qla8044_flash_lock(scsi_qla_host_t *vha) +{ + int lock_owner; + int timeout = 0; + uint32_t lock_status = 0; + int ret_val = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + while (lock_status == 0) { + lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK); + if (lock_status) + break; + + if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) { + lock_owner = qla8044_rd_reg(ha, + QLA8044_FLASH_LOCK_ID); + ql_log(ql_log_warn, vha, 0xb113, + "%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d", + __func__, ha->portnum, lock_owner); + ret_val = QLA_FUNCTION_FAILED; + break; + } + msleep(20); + } + qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum); + return ret_val; +} + +static void +qla8044_flash_unlock(scsi_qla_host_t *vha) +{ + struct qla_hw_data *ha = vha->hw; + + /* Reading FLASH_UNLOCK register unlocks the Flash */ + qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF); + qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK); +} + + +static +void qla8044_flash_lock_recovery(struct scsi_qla_host *vha) +{ + + if (qla8044_flash_lock(vha)) { + /* Someone else is holding the lock. */ + ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n"); + } + + /* + * Either we got the lock, or someone + * else died while holding it. + * In either case, unlock. + */ + qla8044_flash_unlock(vha); +} + +/* + * Address and length are byte address + */ +static int +qla8044_read_flash_data(scsi_qla_host_t *vha, uint8_t *p_data, + uint32_t flash_addr, int u32_word_count) +{ + int i, ret_val = QLA_SUCCESS; + uint32_t u32_word; + + if (qla8044_flash_lock(vha) != QLA_SUCCESS) { + ret_val = QLA_FUNCTION_FAILED; + goto exit_lock_error; + } + + if (flash_addr & 0x03) { + ql_log(ql_log_warn, vha, 0xb117, + "%s: Illegal addr = 0x%x\n", __func__, flash_addr); + ret_val = QLA_FUNCTION_FAILED; + goto exit_flash_read; + } + + for (i = 0; i < u32_word_count; i++) { + if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW, + (flash_addr & 0xFFFF0000))) { + ql_log(ql_log_warn, vha, 0xb119, + "%s: failed to write addr 0x%x to " + "FLASH_DIRECT_WINDOW\n! ", + __func__, flash_addr); + ret_val = QLA_FUNCTION_FAILED; + goto exit_flash_read; + } + + ret_val = qla8044_rd_reg_indirect(vha, + QLA8044_FLASH_DIRECT_DATA(flash_addr), + &u32_word); + if (ret_val != QLA_SUCCESS) { + ql_log(ql_log_warn, vha, 0xb08c, + "%s: failed to read addr 0x%x!\n", + __func__, flash_addr); + goto exit_flash_read; + } + + *(uint32_t *)p_data = u32_word; + p_data = p_data + 4; + flash_addr = flash_addr + 4; + } + +exit_flash_read: + qla8044_flash_unlock(vha); + +exit_lock_error: + return ret_val; +} + +/* + * Address and length are byte address + */ +void * +qla8044_read_optrom_data(struct scsi_qla_host *vha, void *buf, + uint32_t offset, uint32_t length) +{ + scsi_block_requests(vha->host); + if (qla8044_read_flash_data(vha, buf, offset, length / 4) + != QLA_SUCCESS) { + ql_log(ql_log_warn, vha, 0xb08d, + "%s: Failed to read from flash\n", + __func__); + } + scsi_unblock_requests(vha->host); + return buf; +} + +static inline int +qla8044_need_reset(struct scsi_qla_host *vha) +{ + uint32_t drv_state, drv_active; + int rval; + struct qla_hw_data *ha = vha->hw; + + drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); + drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); + + rval = drv_state & (1 << ha->portnum); + + if (ha->flags.eeh_busy && drv_active) + rval = 1; + return rval; +} + +/* + * qla8044_write_list - Write the value (p_entry->arg2) to address specified + * by p_entry->arg1 for all entries in header with delay of p_hdr->delay between + * entries. + * + * @vha : Pointer to adapter structure + * @p_hdr : reset_entry header for WRITE_LIST opcode. + * + */ +static void +qla8044_write_list(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + struct qla8044_entry *p_entry; + uint32_t i; + + p_entry = (struct qla8044_entry *)((char *)p_hdr + + sizeof(struct qla8044_reset_entry_hdr)); + + for (i = 0; i < p_hdr->count; i++, p_entry++) { + qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2); + if (p_hdr->delay) + udelay((uint32_t)(p_hdr->delay)); + } +} + +/* + * qla8044_read_write_list - Read from address specified by p_entry->arg1, + * write value read to address specified by p_entry->arg2, for all entries in + * header with delay of p_hdr->delay between entries. + * + * @vha : Pointer to adapter structure + * @p_hdr : reset_entry header for READ_WRITE_LIST opcode. + * + */ +static void +qla8044_read_write_list(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + struct qla8044_entry *p_entry; + uint32_t i; + + p_entry = (struct qla8044_entry *)((char *)p_hdr + + sizeof(struct qla8044_reset_entry_hdr)); + + for (i = 0; i < p_hdr->count; i++, p_entry++) { + qla8044_read_write_crb_reg(vha, p_entry->arg1, + p_entry->arg2); + if (p_hdr->delay) + udelay((uint32_t)(p_hdr->delay)); + } +} + +/* + * qla8044_poll_reg - Poll the given CRB addr for duration msecs till + * value read ANDed with test_mask is equal to test_result. + * + * @ha : Pointer to adapter structure + * @addr : CRB register address + * @duration : Poll for total of "duration" msecs + * @test_mask : Mask value read with "test_mask" + * @test_result : Compare (value&test_mask) with test_result. + * + * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED + */ +static int +qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr, + int duration, uint32_t test_mask, uint32_t test_result) +{ + uint32_t value = 0; + int timeout_error; + uint8_t retries; + int ret_val = QLA_SUCCESS; + + ret_val = qla8044_rd_reg_indirect(vha, addr, &value); + if (ret_val == QLA_FUNCTION_FAILED) { + timeout_error = 1; + goto exit_poll_reg; + } + + /* poll every 1/10 of the total duration */ + retries = duration/10; + + do { + if ((value & test_mask) != test_result) { + timeout_error = 1; + msleep(duration/10); + ret_val = qla8044_rd_reg_indirect(vha, addr, &value); + if (ret_val == QLA_FUNCTION_FAILED) { + timeout_error = 1; + goto exit_poll_reg; + } + } else { + timeout_error = 0; + break; + } + } while (retries--); + +exit_poll_reg: + if (timeout_error) { + vha->reset_tmplt.seq_error++; + ql_log(ql_log_fatal, vha, 0xb090, + "%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n", + __func__, value, test_mask, test_result); + } + + return timeout_error; +} + +/* + * qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB + * register specified by p_entry->arg1 and compare (value AND test_mask) with + * test_result to validate it. Wait for p_hdr->delay between processing entries. + * + * @ha : Pointer to adapter structure + * @p_hdr : reset_entry header for POLL_LIST opcode. + * + */ +static void +qla8044_poll_list(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + long delay; + struct qla8044_entry *p_entry; + struct qla8044_poll *p_poll; + uint32_t i; + uint32_t value; + + p_poll = (struct qla8044_poll *) + ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr)); + + /* Entries start after 8 byte qla8044_poll, poll header contains + * the test_mask, test_value. + */ + p_entry = (struct qla8044_entry *)((char *)p_poll + + sizeof(struct qla8044_poll)); + + delay = (long)p_hdr->delay; + + if (!delay) { + for (i = 0; i < p_hdr->count; i++, p_entry++) + qla8044_poll_reg(vha, p_entry->arg1, + delay, p_poll->test_mask, p_poll->test_value); + } else { + for (i = 0; i < p_hdr->count; i++, p_entry++) { + if (delay) { + if (qla8044_poll_reg(vha, + p_entry->arg1, delay, + p_poll->test_mask, + p_poll->test_value)) { + /*If + * (data_read&test_mask != test_value) + * read TIMEOUT_ADDR (arg1) and + * ADDR (arg2) registers + */ + qla8044_rd_reg_indirect(vha, + p_entry->arg1, &value); + qla8044_rd_reg_indirect(vha, + p_entry->arg2, &value); + } + } + } + } +} + +/* + * qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr, + * read ar_addr, if (value& test_mask != test_mask) re-read till timeout + * expires. + * + * @vha : Pointer to adapter structure + * @p_hdr : reset entry header for POLL_WRITE_LIST opcode. + * + */ +static void +qla8044_poll_write_list(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + long delay; + struct qla8044_quad_entry *p_entry; + struct qla8044_poll *p_poll; + uint32_t i; + + p_poll = (struct qla8044_poll *)((char *)p_hdr + + sizeof(struct qla8044_reset_entry_hdr)); + + p_entry = (struct qla8044_quad_entry *)((char *)p_poll + + sizeof(struct qla8044_poll)); + + delay = (long)p_hdr->delay; + + for (i = 0; i < p_hdr->count; i++, p_entry++) { + qla8044_wr_reg_indirect(vha, + p_entry->dr_addr, p_entry->dr_value); + qla8044_wr_reg_indirect(vha, + p_entry->ar_addr, p_entry->ar_value); + if (delay) { + if (qla8044_poll_reg(vha, + p_entry->ar_addr, delay, + p_poll->test_mask, + p_poll->test_value)) { + ql_dbg(ql_dbg_p3p, vha, 0xb091, + "%s: Timeout Error: poll list, ", + __func__); + ql_dbg(ql_dbg_p3p, vha, 0xb092, + "item_num %d, entry_num %d\n", i, + vha->reset_tmplt.seq_index); + } + } + } +} + +/* + * qla8044_read_modify_write - Read value from p_entry->arg1, modify the + * value, write value to p_entry->arg2. Process entries with p_hdr->delay + * between entries. + * + * @vha : Pointer to adapter structure + * @p_hdr : header with shift/or/xor values. + * + */ +static void +qla8044_read_modify_write(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + struct qla8044_entry *p_entry; + struct qla8044_rmw *p_rmw_hdr; + uint32_t i; + + p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr + + sizeof(struct qla8044_reset_entry_hdr)); + + p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr + + sizeof(struct qla8044_rmw)); + + for (i = 0; i < p_hdr->count; i++, p_entry++) { + qla8044_rmw_crb_reg(vha, p_entry->arg1, + p_entry->arg2, p_rmw_hdr); + if (p_hdr->delay) + udelay((uint32_t)(p_hdr->delay)); + } +} + +/* + * qla8044_pause - Wait for p_hdr->delay msecs, called between processing + * two entries of a sequence. + * + * @vha : Pointer to adapter structure + * @p_hdr : Common reset entry header. + * + */ +static +void qla8044_pause(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + if (p_hdr->delay) + mdelay((uint32_t)((long)p_hdr->delay)); +} + +/* + * qla8044_template_end - Indicates end of reset sequence processing. + * + * @vha : Pointer to adapter structure + * @p_hdr : Common reset entry header. + * + */ +static void +qla8044_template_end(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + vha->reset_tmplt.template_end = 1; + + if (vha->reset_tmplt.seq_error == 0) { + ql_dbg(ql_dbg_p3p, vha, 0xb093, + "%s: Reset sequence completed SUCCESSFULLY.\n", __func__); + } else { + ql_log(ql_log_fatal, vha, 0xb094, + "%s: Reset sequence completed with some timeout " + "errors.\n", __func__); + } +} + +/* + * qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr, + * if (value & test_mask != test_value) re-read till timeout value expires, + * read dr_addr register and assign to reset_tmplt.array. + * + * @vha : Pointer to adapter structure + * @p_hdr : Common reset entry header. + * + */ +static void +qla8044_poll_read_list(struct scsi_qla_host *vha, + struct qla8044_reset_entry_hdr *p_hdr) +{ + long delay; + int index; + struct qla8044_quad_entry *p_entry; + struct qla8044_poll *p_poll; + uint32_t i; + uint32_t value; + + p_poll = (struct qla8044_poll *) + ((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr)); + + p_entry = (struct qla8044_quad_entry *) + ((char *)p_poll + sizeof(struct qla8044_poll)); + + delay = (long)p_hdr->delay; + + for (i = 0; i < p_hdr->count; i++, p_entry++) { + qla8044_wr_reg_indirect(vha, p_entry->ar_addr, + p_entry->ar_value); + if (delay) { + if (qla8044_poll_reg(vha, p_entry->ar_addr, delay, + p_poll->test_mask, p_poll->test_value)) { + ql_dbg(ql_dbg_p3p, vha, 0xb095, + "%s: Timeout Error: poll " + "list, ", __func__); + ql_dbg(ql_dbg_p3p, vha, 0xb096, + "Item_num %d, " + "entry_num %d\n", i, + vha->reset_tmplt.seq_index); + } else { + index = vha->reset_tmplt.array_index; + qla8044_rd_reg_indirect(vha, + p_entry->dr_addr, &value); + vha->reset_tmplt.array[index++] = value; + if (index == QLA8044_MAX_RESET_SEQ_ENTRIES) + vha->reset_tmplt.array_index = 1; + } + } + } +} + +/* + * qla8031_process_reset_template - Process all entries in reset template + * till entry with SEQ_END opcode, which indicates end of the reset template + * processing. Each entry has a Reset Entry header, entry opcode/command, with + * size of the entry, number of entries in sub-sequence and delay in microsecs + * or timeout in millisecs. + * + * @ha : Pointer to adapter structure + * @p_buff : Common reset entry header. + * + */ +static void +qla8044_process_reset_template(struct scsi_qla_host *vha, + char *p_buff) +{ + int index, entries; + struct qla8044_reset_entry_hdr *p_hdr; + char *p_entry = p_buff; + + vha->reset_tmplt.seq_end = 0; + vha->reset_tmplt.template_end = 0; + entries = vha->reset_tmplt.hdr->entries; + index = vha->reset_tmplt.seq_index; + + for (; (!vha->reset_tmplt.seq_end) && (index < entries); index++) { + p_hdr = (struct qla8044_reset_entry_hdr *)p_entry; + switch (p_hdr->cmd) { + case OPCODE_NOP: + break; + case OPCODE_WRITE_LIST: + qla8044_write_list(vha, p_hdr); + break; + case OPCODE_READ_WRITE_LIST: + qla8044_read_write_list(vha, p_hdr); + break; + case OPCODE_POLL_LIST: + qla8044_poll_list(vha, p_hdr); + break; + case OPCODE_POLL_WRITE_LIST: + qla8044_poll_write_list(vha, p_hdr); + break; + case OPCODE_READ_MODIFY_WRITE: + qla8044_read_modify_write(vha, p_hdr); + break; + case OPCODE_SEQ_PAUSE: + qla8044_pause(vha, p_hdr); + break; + case OPCODE_SEQ_END: + vha->reset_tmplt.seq_end = 1; + break; + case OPCODE_TMPL_END: + qla8044_template_end(vha, p_hdr); + break; + case OPCODE_POLL_READ_LIST: + qla8044_poll_read_list(vha, p_hdr); + break; + default: + ql_log(ql_log_fatal, vha, 0xb097, + "%s: Unknown command ==> 0x%04x on " + "entry = %d\n", __func__, p_hdr->cmd, index); + break; + } + /* + *Set pointer to next entry in the sequence. + */ + p_entry += p_hdr->size; + } + vha->reset_tmplt.seq_index = index; +} + +static void +qla8044_process_init_seq(struct scsi_qla_host *vha) +{ + qla8044_process_reset_template(vha, + vha->reset_tmplt.init_offset); + if (vha->reset_tmplt.seq_end != 1) + ql_log(ql_log_fatal, vha, 0xb098, + "%s: Abrupt INIT Sub-Sequence end.\n", + __func__); +} + +static void +qla8044_process_stop_seq(struct scsi_qla_host *vha) +{ + vha->reset_tmplt.seq_index = 0; + qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset); + if (vha->reset_tmplt.seq_end != 1) + ql_log(ql_log_fatal, vha, 0xb099, + "%s: Abrupt STOP Sub-Sequence end.\n", __func__); +} + +static void +qla8044_process_start_seq(struct scsi_qla_host *vha) +{ + qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset); + if (vha->reset_tmplt.template_end != 1) + ql_log(ql_log_fatal, vha, 0xb09a, + "%s: Abrupt START Sub-Sequence end.\n", + __func__); +} + +static int +qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha, + uint32_t flash_addr, uint8_t *p_data, int u32_word_count) +{ + uint32_t i; + uint32_t u32_word; + uint32_t flash_offset; + uint32_t addr = flash_addr; + int ret_val = QLA_SUCCESS; + + flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1); + + if (addr & 0x3) { + ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n", + __func__, addr); + ret_val = QLA_FUNCTION_FAILED; + goto exit_lockless_read; + } + + ret_val = qla8044_wr_reg_indirect(vha, + QLA8044_FLASH_DIRECT_WINDOW, (addr)); + + if (ret_val != QLA_SUCCESS) { + ql_log(ql_log_fatal, vha, 0xb09c, + "%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n", + __func__, addr); + goto exit_lockless_read; + } + + /* Check if data is spread across multiple sectors */ + if ((flash_offset + (u32_word_count * sizeof(uint32_t))) > + (QLA8044_FLASH_SECTOR_SIZE - 1)) { + /* Multi sector read */ + for (i = 0; i < u32_word_count; i++) { + ret_val = qla8044_rd_reg_indirect(vha, + QLA8044_FLASH_DIRECT_DATA(addr), &u32_word); + if (ret_val != QLA_SUCCESS) { + ql_log(ql_log_fatal, vha, 0xb09d, + "%s: failed to read addr 0x%x!\n", + __func__, addr); + goto exit_lockless_read; + } + *(uint32_t *)p_data = u32_word; + p_data = p_data + 4; + addr = addr + 4; + flash_offset = flash_offset + 4; + if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) { + /* This write is needed once for each sector */ + ret_val = qla8044_wr_reg_indirect(vha, + QLA8044_FLASH_DIRECT_WINDOW, (addr)); + if (ret_val != QLA_SUCCESS) { + ql_log(ql_log_fatal, vha, 0xb09f, + "%s: failed to write addr " + "0x%x to FLASH_DIRECT_WINDOW!\n", + __func__, addr); + goto exit_lockless_read; + } + flash_offset = 0; + } + } + } else { + /* Single sector read */ + for (i = 0; i < u32_word_count; i++) { + ret_val = qla8044_rd_reg_indirect(vha, + QLA8044_FLASH_DIRECT_DATA(addr), &u32_word); + if (ret_val != QLA_SUCCESS) { + ql_log(ql_log_fatal, vha, 0xb0a0, + "%s: failed to read addr 0x%x!\n", + __func__, addr); + goto exit_lockless_read; + } + *(uint32_t *)p_data = u32_word; + p_data = p_data + 4; + addr = addr + 4; + } + } + +exit_lockless_read: + return ret_val; +} + +/* + * qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory + * + * @vha : Pointer to adapter structure + * addr : Flash address to write to + * data : Data to be written + * count : word_count to be written + * + * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED + */ +static int +qla8044_ms_mem_write_128b(struct scsi_qla_host *vha, + uint64_t addr, uint32_t *data, uint32_t count) +{ + int i, j, ret_val = QLA_SUCCESS; + uint32_t agt_ctrl; + unsigned long flags; + struct qla_hw_data *ha = vha->hw; + + /* Only 128-bit aligned access */ + if (addr & 0xF) { + ret_val = QLA_FUNCTION_FAILED; + goto exit_ms_mem_write; + } + write_lock_irqsave(&ha->hw_lock, flags); + + /* Write address */ + ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0); + if (ret_val == QLA_FUNCTION_FAILED) { + ql_log(ql_log_fatal, vha, 0xb0a1, + "%s: write to AGT_ADDR_HI failed!\n", __func__); + goto exit_ms_mem_write_unlock; + } + + for (i = 0; i < count; i++, addr += 16) { + if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET, + QLA8044_ADDR_QDR_NET_MAX)) || + (addr_in_range(addr, QLA8044_ADDR_DDR_NET, + QLA8044_ADDR_DDR_NET_MAX)))) { + ret_val = QLA_FUNCTION_FAILED; + goto exit_ms_mem_write_unlock; + } + + ret_val = qla8044_wr_reg_indirect(vha, + MD_MIU_TEST_AGT_ADDR_LO, addr); + + /* Write data */ + ret_val += qla8044_wr_reg_indirect(vha, + MD_MIU_TEST_AGT_WRDATA_LO, *data++); + ret_val += qla8044_wr_reg_indirect(vha, + MD_MIU_TEST_AGT_WRDATA_HI, *data++); + ret_val += qla8044_wr_reg_indirect(vha, + MD_MIU_TEST_AGT_WRDATA_ULO, *data++); + ret_val += qla8044_wr_reg_indirect(vha, + MD_MIU_TEST_AGT_WRDATA_UHI, *data++); + if (ret_val == QLA_FUNCTION_FAILED) { + ql_log(ql_log_fatal, vha, 0xb0a2, + "%s: write to AGT_WRDATA failed!\n", + __func__); + goto exit_ms_mem_write_unlock; + } + + /* Check write status */ + ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, + MIU_TA_CTL_WRITE_ENABLE); + ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, + MIU_TA_CTL_WRITE_START); + if (ret_val == QLA_FUNCTION_FAILED) { + ql_log(ql_log_fatal, vha, 0xb0a3, + "%s: write to AGT_CTRL failed!\n", __func__); + goto exit_ms_mem_write_unlock; + } + + for (j = 0; j < MAX_CTL_CHECK; j++) { + ret_val = qla8044_rd_reg_indirect(vha, + MD_MIU_TEST_AGT_CTRL, &agt_ctrl); + if (ret_val == QLA_FUNCTION_FAILED) { + ql_log(ql_log_fatal, vha, 0xb0a4, + "%s: failed to read " + "MD_MIU_TEST_AGT_CTRL!\n", __func__); + goto exit_ms_mem_write_unlock; + } + if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0) + break; + } + + /* Status check failed */ + if (j >= MAX_CTL_CHECK) { + ql_log(ql_log_fatal, vha, 0xb0a5, + "%s: MS memory write failed!\n", + __func__); + ret_val = QLA_FUNCTION_FAILED; + goto exit_ms_mem_write_unlock; + } + } + +exit_ms_mem_write_unlock: + write_unlock_irqrestore(&ha->hw_lock, flags); + +exit_ms_mem_write: + return ret_val; +} + +static int +qla8044_copy_bootloader(struct scsi_qla_host *vha) +{ + uint8_t *p_cache; + uint32_t src, count, size; + uint64_t dest; + int ret_val = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + src = QLA8044_BOOTLOADER_FLASH_ADDR; + dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR); + size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE); + + /* 128 bit alignment check */ + if (size & 0xF) + size = (size + 16) & ~0xF; + + /* 16 byte count */ + count = size/16; + + p_cache = vmalloc(size); + if (p_cache == NULL) { + ql_log(ql_log_fatal, vha, 0xb0a6, + "%s: Failed to allocate memory for " + "boot loader cache\n", __func__); + ret_val = QLA_FUNCTION_FAILED; + goto exit_copy_bootloader; + } + + ret_val = qla8044_lockless_flash_read_u32(vha, src, + p_cache, size/sizeof(uint32_t)); + if (ret_val == QLA_FUNCTION_FAILED) { + ql_log(ql_log_fatal, vha, 0xb0a7, + "%s: Error reading F/W from flash!!!\n", __func__); + goto exit_copy_error; + } + ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n", + __func__); + + /* 128 bit/16 byte write to MS memory */ + ret_val = qla8044_ms_mem_write_128b(vha, dest, + (uint32_t *)p_cache, count); + if (ret_val == QLA_FUNCTION_FAILED) { + ql_log(ql_log_fatal, vha, 0xb0a9, + "%s: Error writing F/W to MS !!!\n", __func__); + goto exit_copy_error; + } + ql_dbg(ql_dbg_p3p, vha, 0xb0aa, + "%s: Wrote F/W (size %d) to MS !!!\n", + __func__, size); + +exit_copy_error: + vfree(p_cache); + +exit_copy_bootloader: + return ret_val; +} + +static int +qla8044_restart(struct scsi_qla_host *vha) +{ + int ret_val = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + qla8044_process_stop_seq(vha); + + /* Collect minidump */ + if (ql2xmdenable) + qla8044_get_minidump(vha); + else + ql_log(ql_log_fatal, vha, 0xb14c, + "Minidump disabled.\n"); + + qla8044_process_init_seq(vha); + + if (qla8044_copy_bootloader(vha)) { + ql_log(ql_log_fatal, vha, 0xb0ab, + "%s: Copy bootloader, firmware restart failed!\n", + __func__); + ret_val = QLA_FUNCTION_FAILED; + goto exit_restart; + } + + /* + * Loads F/W from flash + */ + qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH); + + qla8044_process_start_seq(vha); + +exit_restart: + return ret_val; +} + +/* + * qla8044_check_cmd_peg_status - Check peg status to see if Peg is + * initialized. + * + * @ha : Pointer to adapter structure + * + * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED + */ +static int +qla8044_check_cmd_peg_status(struct scsi_qla_host *vha) +{ + uint32_t val, ret_val = QLA_FUNCTION_FAILED; + int retries = CRB_CMDPEG_CHECK_RETRY_COUNT; + struct qla_hw_data *ha = vha->hw; + + do { + val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE); + if (val == PHAN_INITIALIZE_COMPLETE) { + ql_dbg(ql_dbg_p3p, vha, 0xb0ac, + "%s: Command Peg initialization " + "complete! state=0x%x\n", __func__, val); + ret_val = QLA_SUCCESS; + break; + } + msleep(CRB_CMDPEG_CHECK_DELAY); + } while (--retries); + + return ret_val; +} + +static int +qla8044_start_firmware(struct scsi_qla_host *vha) +{ + int ret_val = QLA_SUCCESS; + + if (qla8044_restart(vha)) { + ql_log(ql_log_fatal, vha, 0xb0ad, + "%s: Restart Error!!!, Need Reset!!!\n", + __func__); + ret_val = QLA_FUNCTION_FAILED; + goto exit_start_fw; + } else + ql_dbg(ql_dbg_p3p, vha, 0xb0af, + "%s: Restart done!\n", __func__); + + ret_val = qla8044_check_cmd_peg_status(vha); + if (ret_val) { + ql_log(ql_log_fatal, vha, 0xb0b0, + "%s: Peg not initialized!\n", __func__); + ret_val = QLA_FUNCTION_FAILED; + } + +exit_start_fw: + return ret_val; +} + +void +qla8044_clear_drv_active(struct qla_hw_data *ha) +{ + uint32_t drv_active; + struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); + + drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); + drv_active &= ~(1 << (ha->portnum)); + + ql_log(ql_log_info, vha, 0xb0b1, + "%s(%ld): drv_active: 0x%08x\n", + __func__, vha->host_no, drv_active); + + qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active); +} + +/* + * qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw + * @ha: pointer to adapter structure + * + * Note: IDC lock must be held upon entry + **/ +static int +qla8044_device_bootstrap(struct scsi_qla_host *vha) +{ + int rval = QLA_FUNCTION_FAILED; + int i; + uint32_t old_count = 0, count = 0; + int need_reset = 0; + uint32_t idc_ctrl; + struct qla_hw_data *ha = vha->hw; + + need_reset = qla8044_need_reset(vha); + + if (!need_reset) { + old_count = qla8044_rd_direct(vha, + QLA8044_PEG_ALIVE_COUNTER_INDEX); + + for (i = 0; i < 10; i++) { + msleep(200); + + count = qla8044_rd_direct(vha, + QLA8044_PEG_ALIVE_COUNTER_INDEX); + if (count != old_count) { + rval = QLA_SUCCESS; + goto dev_ready; + } + } + qla8044_flash_lock_recovery(vha); + } else { + /* We are trying to perform a recovery here. */ + if (ha->flags.isp82xx_fw_hung) + qla8044_flash_lock_recovery(vha); + } + + /* set to DEV_INITIALIZING */ + ql_log(ql_log_info, vha, 0xb0b2, + "%s: HW State: INITIALIZING\n", __func__); + qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, + QLA8XXX_DEV_INITIALIZING); + + qla8044_idc_unlock(ha); + rval = qla8044_start_firmware(vha); + qla8044_idc_lock(ha); + + if (rval != QLA_SUCCESS) { + ql_log(ql_log_info, vha, 0xb0b3, + "%s: HW State: FAILED\n", __func__); + qla8044_clear_drv_active(ha); + qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, + QLA8XXX_DEV_FAILED); + return rval; + } + + /* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after + * device goes to INIT state. */ + idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); + if (idc_ctrl & GRACEFUL_RESET_BIT1) { + qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, + (idc_ctrl & ~GRACEFUL_RESET_BIT1)); + ha->fw_dumped = false; + } + +dev_ready: + ql_log(ql_log_info, vha, 0xb0b4, + "%s: HW State: READY\n", __func__); + qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY); + + return rval; +} + +/*-------------------------Reset Sequence Functions-----------------------*/ +static void +qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha) +{ + u8 *phdr; + + if (!vha->reset_tmplt.buff) { + ql_log(ql_log_fatal, vha, 0xb0b5, + "%s: Error Invalid reset_seq_template\n", __func__); + return; + } + + phdr = vha->reset_tmplt.buff; + ql_dbg(ql_dbg_p3p, vha, 0xb0b6, + "Reset Template :\n\t0x%X 0x%X 0x%X 0x%X" + "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n" + "\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n", + *phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4), + *(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8), + *(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12), + *(phdr+13), *(phdr+14), *(phdr+15)); +} + +/* + * qla8044_reset_seq_checksum_test - Validate Reset Sequence template. + * + * @ha : Pointer to adapter structure + * + * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED + */ +static int +qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha) +{ + uint32_t sum = 0; + uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff; + int u16_count = vha->reset_tmplt.hdr->size / sizeof(uint16_t); + + while (u16_count-- > 0) + sum += *buff++; + + while (sum >> 16) + sum = (sum & 0xFFFF) + (sum >> 16); + + /* checksum of 0 indicates a valid template */ + if (~sum) { + return QLA_SUCCESS; + } else { + ql_log(ql_log_fatal, vha, 0xb0b7, + "%s: Reset seq checksum failed\n", __func__); + return QLA_FUNCTION_FAILED; + } +} + +/* + * qla8044_read_reset_template - Read Reset Template from Flash, validate + * the template and store offsets of stop/start/init offsets in ha->reset_tmplt. + * + * @ha : Pointer to adapter structure + */ +void +qla8044_read_reset_template(struct scsi_qla_host *vha) +{ + uint8_t *p_buff; + uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size; + + vha->reset_tmplt.seq_error = 0; + vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE); + if (vha->reset_tmplt.buff == NULL) { + ql_log(ql_log_fatal, vha, 0xb0b8, + "%s: Failed to allocate reset template resources\n", + __func__); + goto exit_read_reset_template; + } + + p_buff = vha->reset_tmplt.buff; + addr = QLA8044_RESET_TEMPLATE_ADDR; + + tmplt_hdr_def_size = + sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t); + + ql_dbg(ql_dbg_p3p, vha, 0xb0b9, + "%s: Read template hdr size %d from Flash\n", + __func__, tmplt_hdr_def_size); + + /* Copy template header from flash */ + if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) { + ql_log(ql_log_fatal, vha, 0xb0ba, + "%s: Failed to read reset template\n", __func__); + goto exit_read_template_error; + } + + vha->reset_tmplt.hdr = + (struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff; + + /* Validate the template header size and signature */ + tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t); + if ((tmplt_hdr_size != tmplt_hdr_def_size) || + (vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) { + ql_log(ql_log_fatal, vha, 0xb0bb, + "%s: Template Header size invalid %d " + "tmplt_hdr_def_size %d!!!\n", __func__, + tmplt_hdr_size, tmplt_hdr_def_size); + goto exit_read_template_error; + } + + addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size; + p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size; + tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size - + vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t); + + ql_dbg(ql_dbg_p3p, vha, 0xb0bc, + "%s: Read rest of the template size %d\n", + __func__, vha->reset_tmplt.hdr->size); + + /* Copy rest of the template */ + if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) { + ql_log(ql_log_fatal, vha, 0xb0bd, + "%s: Failed to read reset template\n", __func__); + goto exit_read_template_error; + } + + /* Integrity check */ + if (qla8044_reset_seq_checksum_test(vha)) { + ql_log(ql_log_fatal, vha, 0xb0be, + "%s: Reset Seq checksum failed!\n", __func__); + goto exit_read_template_error; + } + + ql_dbg(ql_dbg_p3p, vha, 0xb0bf, + "%s: Reset Seq checksum passed! Get stop, " + "start and init seq offsets\n", __func__); + + /* Get STOP, START, INIT sequence offsets */ + vha->reset_tmplt.init_offset = vha->reset_tmplt.buff + + vha->reset_tmplt.hdr->init_seq_offset; + + vha->reset_tmplt.start_offset = vha->reset_tmplt.buff + + vha->reset_tmplt.hdr->start_seq_offset; + + vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff + + vha->reset_tmplt.hdr->hdr_size; + + qla8044_dump_reset_seq_hdr(vha); + + goto exit_read_reset_template; + +exit_read_template_error: + vfree(vha->reset_tmplt.buff); + +exit_read_reset_template: + return; +} + +void +qla8044_set_idc_dontreset(struct scsi_qla_host *vha) +{ + uint32_t idc_ctrl; + struct qla_hw_data *ha = vha->hw; + + idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); + idc_ctrl |= DONTRESET_BIT0; + ql_dbg(ql_dbg_p3p, vha, 0xb0c0, + "%s: idc_ctrl = %d\n", __func__, idc_ctrl); + qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); +} + +static inline void +qla8044_set_rst_ready(struct scsi_qla_host *vha) +{ + uint32_t drv_state; + struct qla_hw_data *ha = vha->hw; + + drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); + + /* For ISP8044, drv_active register has 1 bit per function, + * shift 1 by func_num to set a bit for the function.*/ + drv_state |= (1 << ha->portnum); + + ql_log(ql_log_info, vha, 0xb0c1, + "%s(%ld): drv_state: 0x%08x\n", + __func__, vha->host_no, drv_state); + qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state); +} + +/** + * qla8044_need_reset_handler - Code to start reset sequence + * @vha: pointer to adapter structure + * + * Note: IDC lock must be held upon entry + */ +static void +qla8044_need_reset_handler(struct scsi_qla_host *vha) +{ + uint32_t dev_state = 0, drv_state, drv_active; + unsigned long reset_timeout; + struct qla_hw_data *ha = vha->hw; + + ql_log(ql_log_fatal, vha, 0xb0c2, + "%s: Performing ISP error recovery\n", __func__); + + if (vha->flags.online) { + qla8044_idc_unlock(ha); + qla2x00_abort_isp_cleanup(vha); + ha->isp_ops->get_flash_version(vha, vha->req->ring); + ha->isp_ops->nvram_config(vha); + qla8044_idc_lock(ha); + } + + dev_state = qla8044_rd_direct(vha, + QLA8044_CRB_DEV_STATE_INDEX); + drv_state = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_STATE_INDEX); + drv_active = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_ACTIVE_INDEX); + + ql_log(ql_log_info, vha, 0xb0c5, + "%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n", + __func__, vha->host_no, drv_state, drv_active, dev_state); + + qla8044_set_rst_ready(vha); + + /* wait for 10 seconds for reset ack from all functions */ + reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ); + + do { + if (time_after_eq(jiffies, reset_timeout)) { + ql_log(ql_log_info, vha, 0xb0c4, + "%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n", + __func__, ha->portnum, drv_state, drv_active); + break; + } + + qla8044_idc_unlock(ha); + msleep(1000); + qla8044_idc_lock(ha); + + dev_state = qla8044_rd_direct(vha, + QLA8044_CRB_DEV_STATE_INDEX); + drv_state = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_STATE_INDEX); + drv_active = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_ACTIVE_INDEX); + } while (((drv_state & drv_active) != drv_active) && + (dev_state == QLA8XXX_DEV_NEED_RESET)); + + /* Remove IDC participation of functions not acknowledging */ + if (drv_state != drv_active) { + ql_log(ql_log_info, vha, 0xb0c7, + "%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n", + __func__, vha->host_no, ha->portnum, + (drv_active ^ drv_state)); + drv_active = drv_active & drv_state; + qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, + drv_active); + } else { + /* + * Reset owner should execute reset recovery, + * if all functions acknowledged + */ + if ((ha->flags.nic_core_reset_owner) && + (dev_state == QLA8XXX_DEV_NEED_RESET)) { + ha->flags.nic_core_reset_owner = 0; + qla8044_device_bootstrap(vha); + return; + } + } + + /* Exit if non active function */ + if (!(drv_active & (1 << ha->portnum))) { + ha->flags.nic_core_reset_owner = 0; + return; + } + + /* + * Execute Reset Recovery if Reset Owner or Function 7 + * is the only active function + */ + if (ha->flags.nic_core_reset_owner || + ((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) { + ha->flags.nic_core_reset_owner = 0; + qla8044_device_bootstrap(vha); + } +} + +static void +qla8044_set_drv_active(struct scsi_qla_host *vha) +{ + uint32_t drv_active; + struct qla_hw_data *ha = vha->hw; + + drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); + + /* For ISP8044, drv_active register has 1 bit per function, + * shift 1 by func_num to set a bit for the function.*/ + drv_active |= (1 << ha->portnum); + + ql_log(ql_log_info, vha, 0xb0c8, + "%s(%ld): drv_active: 0x%08x\n", + __func__, vha->host_no, drv_active); + qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active); +} + +static int +qla8044_check_drv_active(struct scsi_qla_host *vha) +{ + uint32_t drv_active; + struct qla_hw_data *ha = vha->hw; + + drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); + if (drv_active & (1 << ha->portnum)) + return QLA_SUCCESS; + else + return QLA_TEST_FAILED; +} + +static void +qla8044_clear_idc_dontreset(struct scsi_qla_host *vha) +{ + uint32_t idc_ctrl; + struct qla_hw_data *ha = vha->hw; + + idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); + idc_ctrl &= ~DONTRESET_BIT0; + ql_log(ql_log_info, vha, 0xb0c9, + "%s: idc_ctrl = %d\n", __func__, + idc_ctrl); + qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl); +} + +static int +qla8044_set_idc_ver(struct scsi_qla_host *vha) +{ + int idc_ver; + uint32_t drv_active; + int rval = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); + if (drv_active == (1 << ha->portnum)) { + idc_ver = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_IDC_VERSION_INDEX); + idc_ver &= (~0xFF); + idc_ver |= QLA8044_IDC_VER_MAJ_VALUE; + qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX, + idc_ver); + ql_log(ql_log_info, vha, 0xb0ca, + "%s: IDC version updated to %d\n", + __func__, idc_ver); + } else { + idc_ver = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_IDC_VERSION_INDEX); + idc_ver &= 0xFF; + if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) { + ql_log(ql_log_info, vha, 0xb0cb, + "%s: qla4xxx driver IDC version %d " + "is not compatible with IDC version %d " + "of other drivers!\n", + __func__, QLA8044_IDC_VER_MAJ_VALUE, + idc_ver); + rval = QLA_FUNCTION_FAILED; + goto exit_set_idc_ver; + } + } + + /* Update IDC_MINOR_VERSION */ + idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR); + idc_ver &= ~(0x03 << (ha->portnum * 2)); + idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2)); + qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver); + +exit_set_idc_ver: + return rval; +} + +static int +qla8044_update_idc_reg(struct scsi_qla_host *vha) +{ + uint32_t drv_active; + int rval = QLA_SUCCESS; + struct qla_hw_data *ha = vha->hw; + + if (vha->flags.init_done) + goto exit_update_idc_reg; + + qla8044_idc_lock(ha); + qla8044_set_drv_active(vha); + + drv_active = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_ACTIVE_INDEX); + + /* If we are the first driver to load and + * ql2xdontresethba is not set, clear IDC_CTRL BIT0. */ + if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba) + qla8044_clear_idc_dontreset(vha); + + rval = qla8044_set_idc_ver(vha); + if (rval == QLA_FUNCTION_FAILED) + qla8044_clear_drv_active(ha); + qla8044_idc_unlock(ha); + +exit_update_idc_reg: + return rval; +} + +/** + * qla8044_need_qsnt_handler - Code to start qsnt + * @vha: pointer to adapter structure + */ +static void +qla8044_need_qsnt_handler(struct scsi_qla_host *vha) +{ + unsigned long qsnt_timeout; + uint32_t drv_state, drv_active, dev_state; + struct qla_hw_data *ha = vha->hw; + + if (vha->flags.online) + qla2x00_quiesce_io(vha); + else + return; + + qla8044_set_qsnt_ready(vha); + + /* Wait for 30 secs for all functions to ack qsnt mode */ + qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ); + drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); + drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX); + + /* Shift drv_active by 1 to match drv_state. As quiescent ready bit + position is at bit 1 and drv active is at bit 0 */ + drv_active = drv_active << 1; + + while (drv_state != drv_active) { + if (time_after_eq(jiffies, qsnt_timeout)) { + /* Other functions did not ack, changing state to + * DEV_READY + */ + clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); + qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, + QLA8XXX_DEV_READY); + qla8044_clear_qsnt_ready(vha); + ql_log(ql_log_info, vha, 0xb0cc, + "Timeout waiting for quiescent ack!!!\n"); + return; + } + qla8044_idc_unlock(ha); + msleep(1000); + qla8044_idc_lock(ha); + + drv_state = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_STATE_INDEX); + drv_active = qla8044_rd_direct(vha, + QLA8044_CRB_DRV_ACTIVE_INDEX); + drv_active = drv_active << 1; + } + + /* All functions have Acked. Set quiescent state */ + dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); + + if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) { + qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, + QLA8XXX_DEV_QUIESCENT); + ql_log(ql_log_info, vha, 0xb0cd, + "%s: HW State: QUIESCENT\n", __func__); + } +} + +/* + * qla8044_device_state_handler - Adapter state machine + * @ha: pointer to host adapter structure. + * + * Note: IDC lock must be UNLOCKED upon entry + **/ +int +qla8044_device_state_handler(struct scsi_qla_host *vha) +{ + uint32_t dev_state; + int rval = QLA_SUCCESS; + unsigned long dev_init_timeout; + struct qla_hw_data *ha = vha->hw; + + rval = qla8044_update_idc_reg(vha); + if (rval == QLA_FUNCTION_FAILED) + goto exit_error; + + dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); + ql_dbg(ql_dbg_p3p, vha, 0xb0ce, + "Device state is 0x%x = %s\n", + dev_state, qdev_state(dev_state)); + + /* wait for 30 seconds for device to go ready */ + dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ); + + qla8044_idc_lock(ha); + + while (1) { + if (time_after_eq(jiffies, dev_init_timeout)) { + if (qla8044_check_drv_active(vha) == QLA_SUCCESS) { + ql_log(ql_log_warn, vha, 0xb0cf, + "%s: Device Init Failed 0x%x = %s\n", + QLA2XXX_DRIVER_NAME, dev_state, + qdev_state(dev_state)); + qla8044_wr_direct(vha, + QLA8044_CRB_DEV_STATE_INDEX, + QLA8XXX_DEV_FAILED); + } + } + + dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); + ql_log(ql_log_info, vha, 0xb0d0, + "Device state is 0x%x = %s\n", + dev_state, qdev_state(dev_state)); + + /* NOTE: Make sure idc unlocked upon exit of switch statement */ + switch (dev_state) { + case QLA8XXX_DEV_READY: + ha->flags.nic_core_reset_owner = 0; + goto exit; + case QLA8XXX_DEV_COLD: + rval = qla8044_device_bootstrap(vha); + break; + case QLA8XXX_DEV_INITIALIZING: + qla8044_idc_unlock(ha); + msleep(1000); + qla8044_idc_lock(ha); + break; + case QLA8XXX_DEV_NEED_RESET: + /* For ISP8044, if NEED_RESET is set by any driver, + * it should be honored, irrespective of IDC_CTRL + * DONTRESET_BIT0 */ + qla8044_need_reset_handler(vha); + break; + case QLA8XXX_DEV_NEED_QUIESCENT: + /* idc locked/unlocked in handler */ + qla8044_need_qsnt_handler(vha); + + /* Reset the init timeout after qsnt handler */ + dev_init_timeout = jiffies + + (ha->fcoe_reset_timeout * HZ); + break; + case QLA8XXX_DEV_QUIESCENT: + ql_log(ql_log_info, vha, 0xb0d1, + "HW State: QUIESCENT\n"); + + qla8044_idc_unlock(ha); + msleep(1000); + qla8044_idc_lock(ha); + + /* Reset the init timeout after qsnt handler */ + dev_init_timeout = jiffies + + (ha->fcoe_reset_timeout * HZ); + break; + case QLA8XXX_DEV_FAILED: + ha->flags.nic_core_reset_owner = 0; + qla8044_idc_unlock(ha); + qla8xxx_dev_failed_handler(vha); + rval = QLA_FUNCTION_FAILED; + qla8044_idc_lock(ha); + goto exit; + default: + qla8044_idc_unlock(ha); + qla8xxx_dev_failed_handler(vha); + rval = QLA_FUNCTION_FAILED; + qla8044_idc_lock(ha); + goto exit; + } + } +exit: + qla8044_idc_unlock(ha); + +exit_error: + return rval; +} + +/** + * qla8044_check_temp - Check the ISP82XX temperature. + * @vha: adapter block pointer. + * + * Note: The caller should not hold the idc lock. + */ +static int +qla8044_check_temp(struct scsi_qla_host *vha) +{ + uint32_t temp, temp_state, temp_val; + int status = QLA_SUCCESS; + + temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX); + temp_state = qla82xx_get_temp_state(temp); + temp_val = qla82xx_get_temp_val(temp); + + if (temp_state == QLA82XX_TEMP_PANIC) { + ql_log(ql_log_warn, vha, 0xb0d2, + "Device temperature %d degrees C" + " exceeds maximum allowed. Hardware has been shut" + " down\n", temp_val); + status = QLA_FUNCTION_FAILED; + return status; + } else if (temp_state == QLA82XX_TEMP_WARN) { + ql_log(ql_log_warn, vha, 0xb0d3, + "Device temperature %d" + " degrees C exceeds operating range." + " Immediate action needed.\n", temp_val); + } + return 0; +} + +int qla8044_read_temperature(scsi_qla_host_t *vha) +{ + uint32_t temp; + + temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX); + return qla82xx_get_temp_val(temp); +} + +/** + * qla8044_check_fw_alive - Check firmware health + * @vha: Pointer to host adapter structure. + * + * Context: Interrupt + */ +int +qla8044_check_fw_alive(struct scsi_qla_host *vha) +{ + uint32_t fw_heartbeat_counter; + uint32_t halt_status1, halt_status2; + int status = QLA_SUCCESS; + + fw_heartbeat_counter = qla8044_rd_direct(vha, + QLA8044_PEG_ALIVE_COUNTER_INDEX); + + /* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */ + if (fw_heartbeat_counter == 0xffffffff) { + ql_dbg(ql_dbg_p3p, vha, 0xb0d4, + "scsi%ld: %s: Device in frozen " + "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n", + vha->host_no, __func__); + return status; + } + + if (vha->fw_heartbeat_counter == fw_heartbeat_counter) { + vha->seconds_since_last_heartbeat++; + /* FW not alive after 2 seconds */ + if (vha->seconds_since_last_heartbeat == 2) { + vha->seconds_since_last_heartbeat = 0; + halt_status1 = qla8044_rd_direct(vha, + QLA8044_PEG_HALT_STATUS1_INDEX); + halt_status2 = qla8044_rd_direct(vha, + QLA8044_PEG_HALT_STATUS2_INDEX); + + ql_log(ql_log_info, vha, 0xb0d5, + "scsi(%ld): %s, ISP8044 " + "Dumping hw/fw registers:\n" + " PEG_HALT_STATUS1: 0x%x, " + "PEG_HALT_STATUS2: 0x%x,\n", + vha->host_no, __func__, halt_status1, + halt_status2); + status = QLA_FUNCTION_FAILED; + } + } else + vha->seconds_since_last_heartbeat = 0; + + vha->fw_heartbeat_counter = fw_heartbeat_counter; + return status; +} + +void +qla8044_watchdog(struct scsi_qla_host *vha) +{ + uint32_t dev_state, halt_status; + int halt_status_unrecoverable = 0; + struct qla_hw_data *ha = vha->hw; + + /* don't poll if reset is going on or FW hang in quiescent state */ + if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || + test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) { + dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); + + if (qla8044_check_fw_alive(vha)) { + ha->flags.isp82xx_fw_hung = 1; + ql_log(ql_log_warn, vha, 0xb10a, + "Firmware hung.\n"); + qla82xx_clear_pending_mbx(vha); + } + + if (qla8044_check_temp(vha)) { + set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags); + ha->flags.isp82xx_fw_hung = 1; + qla2xxx_wake_dpc(vha); + } else if (dev_state == QLA8XXX_DEV_NEED_RESET && + !test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) { + ql_log(ql_log_info, vha, 0xb0d6, + "%s: HW State: NEED RESET!\n", + __func__); + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + } else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT && + !test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) { + ql_log(ql_log_info, vha, 0xb0d7, + "%s: HW State: NEED QUIES detected!\n", + __func__); + set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + } else { + /* Check firmware health */ + if (ha->flags.isp82xx_fw_hung) { + halt_status = qla8044_rd_direct(vha, + QLA8044_PEG_HALT_STATUS1_INDEX); + if (halt_status & + QLA8044_HALT_STATUS_FW_RESET) { + ql_log(ql_log_fatal, vha, + 0xb0d8, "%s: Firmware " + "error detected device " + "is being reset\n", + __func__); + } else if (halt_status & + QLA8044_HALT_STATUS_UNRECOVERABLE) { + halt_status_unrecoverable = 1; + } + + /* Since we cannot change dev_state in interrupt + * context, set appropriate DPC flag then wakeup + * DPC */ + if (halt_status_unrecoverable) { + set_bit(ISP_UNRECOVERABLE, + &vha->dpc_flags); + } else { + if (dev_state == + QLA8XXX_DEV_QUIESCENT) { + set_bit(FCOE_CTX_RESET_NEEDED, + &vha->dpc_flags); + ql_log(ql_log_info, vha, 0xb0d9, + "%s: FW CONTEXT Reset " + "needed!\n", __func__); + } else { + ql_log(ql_log_info, vha, + 0xb0da, "%s: " + "detect abort needed\n", + __func__); + set_bit(ISP_ABORT_NEEDED, + &vha->dpc_flags); + } + } + qla2xxx_wake_dpc(vha); + } + } + + } +} + +static int +qla8044_minidump_process_control(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr) +{ + struct qla8044_minidump_entry_crb *crb_entry; + uint32_t read_value, opcode, poll_time, addr, index; + uint32_t crb_addr, rval = QLA_SUCCESS; + unsigned long wtime; + struct qla8044_minidump_template_hdr *tmplt_hdr; + int i; + struct qla_hw_data *ha = vha->hw; + + ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__); + tmplt_hdr = (struct qla8044_minidump_template_hdr *) + ha->md_tmplt_hdr; + crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr; + + crb_addr = crb_entry->addr; + for (i = 0; i < crb_entry->op_count; i++) { + opcode = crb_entry->crb_ctrl.opcode; + + if (opcode & QLA82XX_DBG_OPCODE_WR) { + qla8044_wr_reg_indirect(vha, crb_addr, + crb_entry->value_1); + } + + if (opcode & QLA82XX_DBG_OPCODE_RW) { + qla8044_rd_reg_indirect(vha, crb_addr, &read_value); + qla8044_wr_reg_indirect(vha, crb_addr, read_value); + } + + if (opcode & QLA82XX_DBG_OPCODE_AND) { + qla8044_rd_reg_indirect(vha, crb_addr, &read_value); + read_value &= crb_entry->value_2; + if (opcode & QLA82XX_DBG_OPCODE_OR) { + read_value |= crb_entry->value_3; + opcode &= ~QLA82XX_DBG_OPCODE_OR; + } + qla8044_wr_reg_indirect(vha, crb_addr, read_value); + } + if (opcode & QLA82XX_DBG_OPCODE_OR) { + qla8044_rd_reg_indirect(vha, crb_addr, &read_value); + read_value |= crb_entry->value_3; + qla8044_wr_reg_indirect(vha, crb_addr, read_value); + } + if (opcode & QLA82XX_DBG_OPCODE_POLL) { + poll_time = crb_entry->crb_strd.poll_timeout; + wtime = jiffies + poll_time; + qla8044_rd_reg_indirect(vha, crb_addr, &read_value); + + do { + if ((read_value & crb_entry->value_2) == + crb_entry->value_1) { + break; + } else if (time_after_eq(jiffies, wtime)) { + /* capturing dump failed */ + rval = QLA_FUNCTION_FAILED; + break; + } else { + qla8044_rd_reg_indirect(vha, + crb_addr, &read_value); + } + } while (1); + } + + if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) { + if (crb_entry->crb_strd.state_index_a) { + index = crb_entry->crb_strd.state_index_a; + addr = tmplt_hdr->saved_state_array[index]; + } else { + addr = crb_addr; + } + + qla8044_rd_reg_indirect(vha, addr, &read_value); + index = crb_entry->crb_ctrl.state_index_v; + tmplt_hdr->saved_state_array[index] = read_value; + } + + if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) { + if (crb_entry->crb_strd.state_index_a) { + index = crb_entry->crb_strd.state_index_a; + addr = tmplt_hdr->saved_state_array[index]; + } else { + addr = crb_addr; + } + + if (crb_entry->crb_ctrl.state_index_v) { + index = crb_entry->crb_ctrl.state_index_v; + read_value = + tmplt_hdr->saved_state_array[index]; + } else { + read_value = crb_entry->value_1; + } + + qla8044_wr_reg_indirect(vha, addr, read_value); + } + + if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) { + index = crb_entry->crb_ctrl.state_index_v; + read_value = tmplt_hdr->saved_state_array[index]; + read_value <<= crb_entry->crb_ctrl.shl; + read_value >>= crb_entry->crb_ctrl.shr; + if (crb_entry->value_2) + read_value &= crb_entry->value_2; + read_value |= crb_entry->value_3; + read_value += crb_entry->value_1; + tmplt_hdr->saved_state_array[index] = read_value; + } + crb_addr += crb_entry->crb_strd.addr_stride; + } + return rval; +} + +static void +qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t r_addr, r_stride, loop_cnt, i, r_value; + struct qla8044_minidump_entry_crb *crb_hdr; + uint32_t *data_ptr = *d_ptr; + + ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__); + crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr; + r_addr = crb_hdr->addr; + r_stride = crb_hdr->crb_strd.addr_stride; + loop_cnt = crb_hdr->op_count; + + for (i = 0; i < loop_cnt; i++) { + qla8044_rd_reg_indirect(vha, r_addr, &r_value); + *data_ptr++ = r_addr; + *data_ptr++ = r_value; + r_addr += r_stride; + } + *d_ptr = data_ptr; +} + +static int +qla8044_minidump_process_rdmem(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t r_addr, r_value, r_data; + uint32_t i, j, loop_cnt; + struct qla8044_minidump_entry_rdmem *m_hdr; + unsigned long flags; + uint32_t *data_ptr = *d_ptr; + struct qla_hw_data *ha = vha->hw; + + ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__); + m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr; + r_addr = m_hdr->read_addr; + loop_cnt = m_hdr->read_data_size/16; + + ql_dbg(ql_dbg_p3p, vha, 0xb0f0, + "[%s]: Read addr: 0x%x, read_data_size: 0x%x\n", + __func__, r_addr, m_hdr->read_data_size); + + if (r_addr & 0xf) { + ql_dbg(ql_dbg_p3p, vha, 0xb0f1, + "[%s]: Read addr 0x%x not 16 bytes aligned\n", + __func__, r_addr); + return QLA_FUNCTION_FAILED; + } + + if (m_hdr->read_data_size % 16) { + ql_dbg(ql_dbg_p3p, vha, 0xb0f2, + "[%s]: Read data[0x%x] not multiple of 16 bytes\n", + __func__, m_hdr->read_data_size); + return QLA_FUNCTION_FAILED; + } + + ql_dbg(ql_dbg_p3p, vha, 0xb0f3, + "[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n", + __func__, r_addr, m_hdr->read_data_size, loop_cnt); + + write_lock_irqsave(&ha->hw_lock, flags); + for (i = 0; i < loop_cnt; i++) { + qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr); + r_value = 0; + qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value); + r_value = MIU_TA_CTL_ENABLE; + qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value); + r_value = MIU_TA_CTL_START_ENABLE; + qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value); + + for (j = 0; j < MAX_CTL_CHECK; j++) { + qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, + &r_value); + if ((r_value & MIU_TA_CTL_BUSY) == 0) + break; + } + + if (j >= MAX_CTL_CHECK) { + write_unlock_irqrestore(&ha->hw_lock, flags); + return QLA_SUCCESS; + } + + for (j = 0; j < 4; j++) { + qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j], + &r_data); + *data_ptr++ = r_data; + } + + r_addr += 16; + } + write_unlock_irqrestore(&ha->hw_lock, flags); + + ql_dbg(ql_dbg_p3p, vha, 0xb0f4, + "Leaving fn: %s datacount: 0x%x\n", + __func__, (loop_cnt * 16)); + + *d_ptr = data_ptr; + return QLA_SUCCESS; +} + +/* ISP83xx flash read for _RDROM _BOARD */ +static uint32_t +qla8044_minidump_process_rdrom(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t fl_addr, u32_count, rval; + struct qla8044_minidump_entry_rdrom *rom_hdr; + uint32_t *data_ptr = *d_ptr; + + rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr; + fl_addr = rom_hdr->read_addr; + u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t); + + ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n", + __func__, fl_addr, u32_count); + + rval = qla8044_lockless_flash_read_u32(vha, fl_addr, + (u8 *)(data_ptr), u32_count); + + if (rval != QLA_SUCCESS) { + ql_log(ql_log_fatal, vha, 0xb0f6, + "%s: Flash Read Error,Count=%d\n", __func__, u32_count); + return QLA_FUNCTION_FAILED; + } else { + data_ptr += u32_count; + *d_ptr = data_ptr; + return QLA_SUCCESS; + } +} + +static void +qla8044_mark_entry_skipped(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, int index) +{ + entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG; + + ql_log(ql_log_info, vha, 0xb0f7, + "scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n", + vha->host_no, index, entry_hdr->entry_type, + entry_hdr->d_ctrl.entry_capture_mask); +} + +static int +qla8044_minidump_process_l2tag(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, + uint32_t **d_ptr) +{ + uint32_t addr, r_addr, c_addr, t_r_addr; + uint32_t i, k, loop_count, t_value, r_cnt, r_value; + unsigned long p_wait, w_time, p_mask; + uint32_t c_value_w, c_value_r; + struct qla8044_minidump_entry_cache *cache_hdr; + int rval = QLA_FUNCTION_FAILED; + uint32_t *data_ptr = *d_ptr; + + ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__); + cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr; + + loop_count = cache_hdr->op_count; + r_addr = cache_hdr->read_addr; + c_addr = cache_hdr->control_addr; + c_value_w = cache_hdr->cache_ctrl.write_value; + + t_r_addr = cache_hdr->tag_reg_addr; + t_value = cache_hdr->addr_ctrl.init_tag_value; + r_cnt = cache_hdr->read_ctrl.read_addr_cnt; + p_wait = cache_hdr->cache_ctrl.poll_wait; + p_mask = cache_hdr->cache_ctrl.poll_mask; + + for (i = 0; i < loop_count; i++) { + qla8044_wr_reg_indirect(vha, t_r_addr, t_value); + if (c_value_w) + qla8044_wr_reg_indirect(vha, c_addr, c_value_w); + + if (p_mask) { + w_time = jiffies + p_wait; + do { + qla8044_rd_reg_indirect(vha, c_addr, + &c_value_r); + if ((c_value_r & p_mask) == 0) { + break; + } else if (time_after_eq(jiffies, w_time)) { + /* capturing dump failed */ + return rval; + } + } while (1); + } + + addr = r_addr; + for (k = 0; k < r_cnt; k++) { + qla8044_rd_reg_indirect(vha, addr, &r_value); + *data_ptr++ = r_value; + addr += cache_hdr->read_ctrl.read_addr_stride; + } + t_value += cache_hdr->addr_ctrl.tag_value_stride; + } + *d_ptr = data_ptr; + return QLA_SUCCESS; +} + +static void +qla8044_minidump_process_l1cache(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t addr, r_addr, c_addr, t_r_addr; + uint32_t i, k, loop_count, t_value, r_cnt, r_value; + uint32_t c_value_w; + struct qla8044_minidump_entry_cache *cache_hdr; + uint32_t *data_ptr = *d_ptr; + + cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr; + loop_count = cache_hdr->op_count; + r_addr = cache_hdr->read_addr; + c_addr = cache_hdr->control_addr; + c_value_w = cache_hdr->cache_ctrl.write_value; + + t_r_addr = cache_hdr->tag_reg_addr; + t_value = cache_hdr->addr_ctrl.init_tag_value; + r_cnt = cache_hdr->read_ctrl.read_addr_cnt; + + for (i = 0; i < loop_count; i++) { + qla8044_wr_reg_indirect(vha, t_r_addr, t_value); + qla8044_wr_reg_indirect(vha, c_addr, c_value_w); + addr = r_addr; + for (k = 0; k < r_cnt; k++) { + qla8044_rd_reg_indirect(vha, addr, &r_value); + *data_ptr++ = r_value; + addr += cache_hdr->read_ctrl.read_addr_stride; + } + t_value += cache_hdr->addr_ctrl.tag_value_stride; + } + *d_ptr = data_ptr; +} + +static void +qla8044_minidump_process_rdocm(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t r_addr, r_stride, loop_cnt, i, r_value; + struct qla8044_minidump_entry_rdocm *ocm_hdr; + uint32_t *data_ptr = *d_ptr; + struct qla_hw_data *ha = vha->hw; + + ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__); + + ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr; + r_addr = ocm_hdr->read_addr; + r_stride = ocm_hdr->read_addr_stride; + loop_cnt = ocm_hdr->op_count; + + ql_dbg(ql_dbg_p3p, vha, 0xb0fa, + "[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n", + __func__, r_addr, r_stride, loop_cnt); + + for (i = 0; i < loop_cnt; i++) { + r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase)); + *data_ptr++ = r_value; + r_addr += r_stride; + } + ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n", + __func__, (long unsigned int) (loop_cnt * sizeof(uint32_t))); + + *d_ptr = data_ptr; +} + +static void +qla8044_minidump_process_rdmux(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, + uint32_t **d_ptr) +{ + uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value = 0; + struct qla8044_minidump_entry_mux *mux_hdr; + uint32_t *data_ptr = *d_ptr; + + ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__); + + mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr; + r_addr = mux_hdr->read_addr; + s_addr = mux_hdr->select_addr; + s_stride = mux_hdr->select_value_stride; + s_value = mux_hdr->select_value; + loop_cnt = mux_hdr->op_count; + + for (i = 0; i < loop_cnt; i++) { + qla8044_wr_reg_indirect(vha, s_addr, s_value); + qla8044_rd_reg_indirect(vha, r_addr, &r_value); + *data_ptr++ = s_value; + *data_ptr++ = r_value; + s_value += s_stride; + } + *d_ptr = data_ptr; +} + +static void +qla8044_minidump_process_queue(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, + uint32_t **d_ptr) +{ + uint32_t s_addr, r_addr; + uint32_t r_stride, r_value, r_cnt, qid = 0; + uint32_t i, k, loop_cnt; + struct qla8044_minidump_entry_queue *q_hdr; + uint32_t *data_ptr = *d_ptr; + + ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__); + q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr; + s_addr = q_hdr->select_addr; + r_cnt = q_hdr->rd_strd.read_addr_cnt; + r_stride = q_hdr->rd_strd.read_addr_stride; + loop_cnt = q_hdr->op_count; + + for (i = 0; i < loop_cnt; i++) { + qla8044_wr_reg_indirect(vha, s_addr, qid); + r_addr = q_hdr->read_addr; + for (k = 0; k < r_cnt; k++) { + qla8044_rd_reg_indirect(vha, r_addr, &r_value); + *data_ptr++ = r_value; + r_addr += r_stride; + } + qid += q_hdr->q_strd.queue_id_stride; + } + *d_ptr = data_ptr; +} + +/* ISP83xx functions to process new minidump entries... */ +static uint32_t +qla8044_minidump_process_pollrd(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, + uint32_t **d_ptr) +{ + uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask; + uint16_t s_stride, i; + struct qla8044_minidump_entry_pollrd *pollrd_hdr; + uint32_t *data_ptr = *d_ptr; + + pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr; + s_addr = pollrd_hdr->select_addr; + r_addr = pollrd_hdr->read_addr; + s_value = pollrd_hdr->select_value; + s_stride = pollrd_hdr->select_value_stride; + + poll_wait = pollrd_hdr->poll_wait; + poll_mask = pollrd_hdr->poll_mask; + + for (i = 0; i < pollrd_hdr->op_count; i++) { + qla8044_wr_reg_indirect(vha, s_addr, s_value); + poll_wait = pollrd_hdr->poll_wait; + while (1) { + qla8044_rd_reg_indirect(vha, s_addr, &r_value); + if ((r_value & poll_mask) != 0) { + break; + } else { + usleep_range(1000, 1100); + if (--poll_wait == 0) { + ql_log(ql_log_fatal, vha, 0xb0fe, + "%s: TIMEOUT\n", __func__); + goto error; + } + } + } + qla8044_rd_reg_indirect(vha, r_addr, &r_value); + *data_ptr++ = s_value; + *data_ptr++ = r_value; + + s_value += s_stride; + } + *d_ptr = data_ptr; + return QLA_SUCCESS; + +error: + return QLA_FUNCTION_FAILED; +} + +static void +qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t sel_val1, sel_val2, t_sel_val, data, i; + uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr; + struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr; + uint32_t *data_ptr = *d_ptr; + + rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr; + sel_val1 = rdmux2_hdr->select_value_1; + sel_val2 = rdmux2_hdr->select_value_2; + sel_addr1 = rdmux2_hdr->select_addr_1; + sel_addr2 = rdmux2_hdr->select_addr_2; + sel_val_mask = rdmux2_hdr->select_value_mask; + read_addr = rdmux2_hdr->read_addr; + + for (i = 0; i < rdmux2_hdr->op_count; i++) { + qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1); + t_sel_val = sel_val1 & sel_val_mask; + *data_ptr++ = t_sel_val; + + qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val); + qla8044_rd_reg_indirect(vha, read_addr, &data); + + *data_ptr++ = data; + + qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2); + t_sel_val = sel_val2 & sel_val_mask; + *data_ptr++ = t_sel_val; + + qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val); + qla8044_rd_reg_indirect(vha, read_addr, &data); + + *data_ptr++ = data; + + sel_val1 += rdmux2_hdr->select_value_stride; + sel_val2 += rdmux2_hdr->select_value_stride; + } + + *d_ptr = data_ptr; +} + +static uint32_t +qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, + uint32_t **d_ptr) +{ + uint32_t poll_wait, poll_mask, r_value, data; + uint32_t addr_1, addr_2, value_1, value_2; + struct qla8044_minidump_entry_pollrdmwr *poll_hdr; + uint32_t *data_ptr = *d_ptr; + + poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr; + addr_1 = poll_hdr->addr_1; + addr_2 = poll_hdr->addr_2; + value_1 = poll_hdr->value_1; + value_2 = poll_hdr->value_2; + poll_mask = poll_hdr->poll_mask; + + qla8044_wr_reg_indirect(vha, addr_1, value_1); + + poll_wait = poll_hdr->poll_wait; + while (1) { + qla8044_rd_reg_indirect(vha, addr_1, &r_value); + + if ((r_value & poll_mask) != 0) { + break; + } else { + usleep_range(1000, 1100); + if (--poll_wait == 0) { + ql_log(ql_log_fatal, vha, 0xb0ff, + "%s: TIMEOUT\n", __func__); + goto error; + } + } + } + + qla8044_rd_reg_indirect(vha, addr_2, &data); + data &= poll_hdr->modify_mask; + qla8044_wr_reg_indirect(vha, addr_2, data); + qla8044_wr_reg_indirect(vha, addr_1, value_2); + + poll_wait = poll_hdr->poll_wait; + while (1) { + qla8044_rd_reg_indirect(vha, addr_1, &r_value); + + if ((r_value & poll_mask) != 0) { + break; + } else { + usleep_range(1000, 1100); + if (--poll_wait == 0) { + ql_log(ql_log_fatal, vha, 0xb100, + "%s: TIMEOUT2\n", __func__); + goto error; + } + } + } + + *data_ptr++ = addr_2; + *data_ptr++ = data; + + *d_ptr = data_ptr; + + return QLA_SUCCESS; + +error: + return QLA_FUNCTION_FAILED; +} + +#define ISP8044_PEX_DMA_ENGINE_INDEX 8 +#define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000 +#define ISP8044_PEX_DMA_NUM_OFFSET 0x10000UL +#define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0 +#define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04 +#define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08 + +#define ISP8044_PEX_DMA_READ_SIZE (16 * 1024) +#define ISP8044_PEX_DMA_MAX_WAIT (100 * 100) /* Max wait of 100 msecs */ + +static int +qla8044_check_dma_engine_state(struct scsi_qla_host *vha) +{ + struct qla_hw_data *ha = vha->hw; + int rval = QLA_SUCCESS; + uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0; + uint64_t dma_base_addr = 0; + struct qla8044_minidump_template_hdr *tmplt_hdr = NULL; + + tmplt_hdr = ha->md_tmplt_hdr; + dma_eng_num = + tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX]; + dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS + + (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET); + + /* Read the pex-dma's command-status-and-control register. */ + rval = qla8044_rd_reg_indirect(vha, + (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL), + &cmd_sts_and_cntrl); + if (rval) + return QLA_FUNCTION_FAILED; + + /* Check if requested pex-dma engine is available. */ + if (cmd_sts_and_cntrl & BIT_31) + return QLA_SUCCESS; + + return QLA_FUNCTION_FAILED; +} + +static int +qla8044_start_pex_dma(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr) +{ + struct qla_hw_data *ha = vha->hw; + int rval = QLA_SUCCESS, wait = 0; + uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0; + uint64_t dma_base_addr = 0; + struct qla8044_minidump_template_hdr *tmplt_hdr = NULL; + + tmplt_hdr = ha->md_tmplt_hdr; + dma_eng_num = + tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX]; + dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS + + (dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET); + + rval = qla8044_wr_reg_indirect(vha, + dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW, + m_hdr->desc_card_addr); + if (rval) + goto error_exit; + + rval = qla8044_wr_reg_indirect(vha, + dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0); + if (rval) + goto error_exit; + + rval = qla8044_wr_reg_indirect(vha, + dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL, + m_hdr->start_dma_cmd); + if (rval) + goto error_exit; + + /* Wait for dma operation to complete. */ + for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) { + rval = qla8044_rd_reg_indirect(vha, + (dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL), + &cmd_sts_and_cntrl); + if (rval) + goto error_exit; + + if ((cmd_sts_and_cntrl & BIT_1) == 0) + break; + + udelay(10); + } + + /* Wait a max of 100 ms, otherwise fallback to rdmem entry read */ + if (wait >= ISP8044_PEX_DMA_MAX_WAIT) { + rval = QLA_FUNCTION_FAILED; + goto error_exit; + } + +error_exit: + return rval; +} + +static int +qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + struct qla_hw_data *ha = vha->hw; + int rval = QLA_SUCCESS; + struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL; + uint32_t chunk_size, read_size; + uint8_t *data_ptr = (uint8_t *)*d_ptr; + void *rdmem_buffer = NULL; + dma_addr_t rdmem_dma; + struct qla8044_pex_dma_descriptor dma_desc; + + rval = qla8044_check_dma_engine_state(vha); + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_p3p, vha, 0xb147, + "DMA engine not available. Fallback to rdmem-read.\n"); + return QLA_FUNCTION_FAILED; + } + + m_hdr = (void *)entry_hdr; + + rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev, + ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL); + if (!rdmem_buffer) { + ql_dbg(ql_dbg_p3p, vha, 0xb148, + "Unable to allocate rdmem dma buffer\n"); + return QLA_FUNCTION_FAILED; + } + + /* Prepare pex-dma descriptor to be written to MS memory. */ + /* dma-desc-cmd layout: + * 0-3: dma-desc-cmd 0-3 + * 4-7: pcid function number + * 8-15: dma-desc-cmd 8-15 + * dma_bus_addr: dma buffer address + * cmd.read_data_size: amount of data-chunk to be read. + */ + dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f); + dma_desc.cmd.dma_desc_cmd |= + ((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4); + + dma_desc.dma_bus_addr = rdmem_dma; + dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE; + read_size = 0; + + /* + * Perform rdmem operation using pex-dma. + * Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE. + */ + while (read_size < m_hdr->read_data_size) { + if (m_hdr->read_data_size - read_size < + ISP8044_PEX_DMA_READ_SIZE) { + chunk_size = (m_hdr->read_data_size - read_size); + dma_desc.cmd.read_data_size = chunk_size; + } + + dma_desc.src_addr = m_hdr->read_addr + read_size; + + /* Prepare: Write pex-dma descriptor to MS memory. */ + rval = qla8044_ms_mem_write_128b(vha, + m_hdr->desc_card_addr, (uint32_t *)&dma_desc, + (sizeof(struct qla8044_pex_dma_descriptor)/16)); + if (rval) { + ql_log(ql_log_warn, vha, 0xb14a, + "%s: Error writing rdmem-dma-init to MS !!!\n", + __func__); + goto error_exit; + } + ql_dbg(ql_dbg_p3p, vha, 0xb14b, + "%s: Dma-descriptor: Instruct for rdmem dma " + "(chunk_size 0x%x).\n", __func__, chunk_size); + + /* Execute: Start pex-dma operation. */ + rval = qla8044_start_pex_dma(vha, m_hdr); + if (rval) + goto error_exit; + + memcpy(data_ptr, rdmem_buffer, chunk_size); + data_ptr += chunk_size; + read_size += chunk_size; + } + + *d_ptr = (uint32_t *)data_ptr; + +error_exit: + if (rdmem_buffer) + dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE, + rdmem_buffer, rdmem_dma); + + return rval; +} + +static uint32_t +qla8044_minidump_process_rddfe(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + int loop_cnt; + uint32_t addr1, addr2, value, data, temp, wrVal; + uint8_t stride, stride2; + uint16_t count; + uint32_t poll, mask, modify_mask; + uint32_t wait_count = 0; + uint32_t *data_ptr = *d_ptr; + struct qla8044_minidump_entry_rddfe *rddfe; + + rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr; + + addr1 = rddfe->addr_1; + value = rddfe->value; + stride = rddfe->stride; + stride2 = rddfe->stride2; + count = rddfe->count; + + poll = rddfe->poll; + mask = rddfe->mask; + modify_mask = rddfe->modify_mask; + + addr2 = addr1 + stride; + + for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) { + qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value)); + + wait_count = 0; + while (wait_count < poll) { + qla8044_rd_reg_indirect(vha, addr1, &temp); + if ((temp & mask) != 0) + break; + wait_count++; + } + + if (wait_count == poll) { + ql_log(ql_log_warn, vha, 0xb153, + "%s: TIMEOUT\n", __func__); + goto error; + } else { + qla8044_rd_reg_indirect(vha, addr2, &temp); + temp = temp & modify_mask; + temp = (temp | ((loop_cnt << 16) | loop_cnt)); + wrVal = ((temp << 16) | temp); + + qla8044_wr_reg_indirect(vha, addr2, wrVal); + qla8044_wr_reg_indirect(vha, addr1, value); + + wait_count = 0; + while (wait_count < poll) { + qla8044_rd_reg_indirect(vha, addr1, &temp); + if ((temp & mask) != 0) + break; + wait_count++; + } + if (wait_count == poll) { + ql_log(ql_log_warn, vha, 0xb154, + "%s: TIMEOUT\n", __func__); + goto error; + } + + qla8044_wr_reg_indirect(vha, addr1, + ((0x40000000 | value) + stride2)); + wait_count = 0; + while (wait_count < poll) { + qla8044_rd_reg_indirect(vha, addr1, &temp); + if ((temp & mask) != 0) + break; + wait_count++; + } + + if (wait_count == poll) { + ql_log(ql_log_warn, vha, 0xb155, + "%s: TIMEOUT\n", __func__); + goto error; + } + + qla8044_rd_reg_indirect(vha, addr2, &data); + + *data_ptr++ = wrVal; + *data_ptr++ = data; + } + + } + + *d_ptr = data_ptr; + return QLA_SUCCESS; + +error: + return -1; + +} + +static uint32_t +qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + int ret = 0; + uint32_t addr1, addr2, value1, value2, data, selVal; + uint8_t stride1, stride2; + uint32_t addr3, addr4, addr5, addr6, addr7; + uint16_t count, loop_cnt; + uint32_t mask; + uint32_t *data_ptr = *d_ptr; + + struct qla8044_minidump_entry_rdmdio *rdmdio; + + rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr; + + addr1 = rdmdio->addr_1; + addr2 = rdmdio->addr_2; + value1 = rdmdio->value_1; + stride1 = rdmdio->stride_1; + stride2 = rdmdio->stride_2; + count = rdmdio->count; + + mask = rdmdio->mask; + value2 = rdmdio->value_2; + + addr3 = addr1 + stride1; + + for (loop_cnt = 0; loop_cnt < count; loop_cnt++) { + ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2, + addr3, mask); + if (ret == -1) + goto error; + + addr4 = addr2 - stride1; + ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr4, + value2); + if (ret == -1) + goto error; + + addr5 = addr2 - (2 * stride1); + ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, addr5, + value1); + if (ret == -1) + goto error; + + addr6 = addr2 - (3 * stride1); + ret = qla8044_ipmdio_wr_reg(vha, addr1, addr3, mask, + addr6, 0x2); + if (ret == -1) + goto error; + + ret = qla8044_poll_wait_ipmdio_bus_idle(vha, addr1, addr2, + addr3, mask); + if (ret == -1) + goto error; + + addr7 = addr2 - (4 * stride1); + data = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr7); + if (data == -1) + goto error; + + selVal = (value2 << 18) | (value1 << 2) | 2; + + stride2 = rdmdio->stride_2; + *data_ptr++ = selVal; + *data_ptr++ = data; + + value1 = value1 + stride2; + *d_ptr = data_ptr; + } + + return 0; + +error: + return -1; +} + +static uint32_t qla8044_minidump_process_pollwr(struct scsi_qla_host *vha, + struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr) +{ + uint32_t addr1, addr2, value1, value2, poll, r_value; + uint32_t wait_count = 0; + struct qla8044_minidump_entry_pollwr *pollwr_hdr; + + pollwr_hdr = (struct qla8044_minidump_entry_pollwr *)entry_hdr; + addr1 = pollwr_hdr->addr_1; + addr2 = pollwr_hdr->addr_2; + value1 = pollwr_hdr->value_1; + value2 = pollwr_hdr->value_2; + + poll = pollwr_hdr->poll; + + while (wait_count < poll) { + qla8044_rd_reg_indirect(vha, addr1, &r_value); + + if ((r_value & poll) != 0) + break; + wait_count++; + } + + if (wait_count == poll) { + ql_log(ql_log_warn, vha, 0xb156, "%s: TIMEOUT\n", __func__); + goto error; + } + + qla8044_wr_reg_indirect(vha, addr2, value2); + qla8044_wr_reg_indirect(vha, addr1, value1); + + wait_count = 0; + while (wait_count < poll) { + qla8044_rd_reg_indirect(vha, addr1, &r_value); + + if ((r_value & poll) != 0) + break; + wait_count++; + } + + return QLA_SUCCESS; + +error: + return -1; +} + +/* + * + * qla8044_collect_md_data - Retrieve firmware minidump data. + * @ha: pointer to adapter structure + **/ +int +qla8044_collect_md_data(struct scsi_qla_host *vha) +{ + int num_entry_hdr = 0; + struct qla8044_minidump_entry_hdr *entry_hdr; + struct qla8044_minidump_template_hdr *tmplt_hdr; + uint32_t *data_ptr; + uint32_t data_collected = 0, f_capture_mask; + int i, rval = QLA_FUNCTION_FAILED; + uint64_t now; + uint32_t timestamp, idc_control; + struct qla_hw_data *ha = vha->hw; + + if (!ha->md_dump) { + ql_log(ql_log_info, vha, 0xb101, + "%s(%ld) No buffer to dump\n", + __func__, vha->host_no); + return rval; + } + + if (ha->fw_dumped) { + ql_log(ql_log_warn, vha, 0xb10d, + "Firmware has been previously dumped (%p) " + "-- ignoring request.\n", ha->fw_dump); + goto md_failed; + } + + ha->fw_dumped = false; + + if (!ha->md_tmplt_hdr || !ha->md_dump) { + ql_log(ql_log_warn, vha, 0xb10e, + "Memory not allocated for minidump capture\n"); + goto md_failed; + } + + qla8044_idc_lock(ha); + idc_control = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); + if (idc_control & GRACEFUL_RESET_BIT1) { + ql_log(ql_log_warn, vha, 0xb112, + "Forced reset from application, " + "ignore minidump capture\n"); + qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, + (idc_control & ~GRACEFUL_RESET_BIT1)); + qla8044_idc_unlock(ha); + + goto md_failed; + } + qla8044_idc_unlock(ha); + + if (qla82xx_validate_template_chksum(vha)) { + ql_log(ql_log_info, vha, 0xb109, + "Template checksum validation error\n"); + goto md_failed; + } + + tmplt_hdr = (struct qla8044_minidump_template_hdr *) + ha->md_tmplt_hdr; + data_ptr = (uint32_t *)((uint8_t *)ha->md_dump); + num_entry_hdr = tmplt_hdr->num_of_entries; + + ql_dbg(ql_dbg_p3p, vha, 0xb11a, + "Capture Mask obtained: 0x%x\n", tmplt_hdr->capture_debug_level); + + f_capture_mask = tmplt_hdr->capture_debug_level & 0xFF; + + /* Validate whether required debug level is set */ + if ((f_capture_mask & 0x3) != 0x3) { + ql_log(ql_log_warn, vha, 0xb10f, + "Minimum required capture mask[0x%x] level not set\n", + f_capture_mask); + + } + tmplt_hdr->driver_capture_mask = ql2xmdcapmask; + ql_log(ql_log_info, vha, 0xb102, + "[%s]: starting data ptr: %p\n", + __func__, data_ptr); + ql_log(ql_log_info, vha, 0xb10b, + "[%s]: no of entry headers in Template: 0x%x\n", + __func__, num_entry_hdr); + ql_log(ql_log_info, vha, 0xb10c, + "[%s]: Total_data_size 0x%x, %d obtained\n", + __func__, ha->md_dump_size, ha->md_dump_size); + + /* Update current timestamp before taking dump */ + now = get_jiffies_64(); + timestamp = (u32)(jiffies_to_msecs(now) / 1000); + tmplt_hdr->driver_timestamp = timestamp; + + entry_hdr = (struct qla8044_minidump_entry_hdr *) + (((uint8_t *)ha->md_tmplt_hdr) + tmplt_hdr->first_entry_offset); + tmplt_hdr->saved_state_array[QLA8044_SS_OCM_WNDREG_INDEX] = + tmplt_hdr->ocm_window_reg[ha->portnum]; + + /* Walk through the entry headers - validate/perform required action */ + for (i = 0; i < num_entry_hdr; i++) { + if (data_collected > ha->md_dump_size) { + ql_log(ql_log_info, vha, 0xb103, + "Data collected: [0x%x], " + "Total Dump size: [0x%x]\n", + data_collected, ha->md_dump_size); + return rval; + } + + if (!(entry_hdr->d_ctrl.entry_capture_mask & + ql2xmdcapmask)) { + entry_hdr->d_ctrl.driver_flags |= + QLA82XX_DBG_SKIPPED_FLAG; + goto skip_nxt_entry; + } + + ql_dbg(ql_dbg_p3p, vha, 0xb104, + "Data collected: [0x%x], Dump size left:[0x%x]\n", + data_collected, + (ha->md_dump_size - data_collected)); + + /* Decode the entry type and take required action to capture + * debug data + */ + switch (entry_hdr->entry_type) { + case QLA82XX_RDEND: + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + case QLA82XX_CNTRL: + rval = qla8044_minidump_process_control(vha, + entry_hdr); + if (rval != QLA_SUCCESS) { + qla8044_mark_entry_skipped(vha, entry_hdr, i); + goto md_failed; + } + break; + case QLA82XX_RDCRB: + qla8044_minidump_process_rdcrb(vha, + entry_hdr, &data_ptr); + break; + case QLA82XX_RDMEM: + rval = qla8044_minidump_pex_dma_read(vha, + entry_hdr, &data_ptr); + if (rval != QLA_SUCCESS) { + rval = qla8044_minidump_process_rdmem(vha, + entry_hdr, &data_ptr); + if (rval != QLA_SUCCESS) { + qla8044_mark_entry_skipped(vha, + entry_hdr, i); + goto md_failed; + } + } + break; + case QLA82XX_BOARD: + case QLA82XX_RDROM: + rval = qla8044_minidump_process_rdrom(vha, + entry_hdr, &data_ptr); + if (rval != QLA_SUCCESS) { + qla8044_mark_entry_skipped(vha, + entry_hdr, i); + } + break; + case QLA82XX_L2DTG: + case QLA82XX_L2ITG: + case QLA82XX_L2DAT: + case QLA82XX_L2INS: + rval = qla8044_minidump_process_l2tag(vha, + entry_hdr, &data_ptr); + if (rval != QLA_SUCCESS) { + qla8044_mark_entry_skipped(vha, entry_hdr, i); + goto md_failed; + } + break; + case QLA8044_L1DTG: + case QLA8044_L1ITG: + case QLA82XX_L1DAT: + case QLA82XX_L1INS: + qla8044_minidump_process_l1cache(vha, + entry_hdr, &data_ptr); + break; + case QLA82XX_RDOCM: + qla8044_minidump_process_rdocm(vha, + entry_hdr, &data_ptr); + break; + case QLA82XX_RDMUX: + qla8044_minidump_process_rdmux(vha, + entry_hdr, &data_ptr); + break; + case QLA82XX_QUEUE: + qla8044_minidump_process_queue(vha, + entry_hdr, &data_ptr); + break; + case QLA8044_POLLRD: + rval = qla8044_minidump_process_pollrd(vha, + entry_hdr, &data_ptr); + if (rval != QLA_SUCCESS) + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + case QLA8044_RDMUX2: + qla8044_minidump_process_rdmux2(vha, + entry_hdr, &data_ptr); + break; + case QLA8044_POLLRDMWR: + rval = qla8044_minidump_process_pollrdmwr(vha, + entry_hdr, &data_ptr); + if (rval != QLA_SUCCESS) + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + case QLA8044_RDDFE: + rval = qla8044_minidump_process_rddfe(vha, entry_hdr, + &data_ptr); + if (rval != QLA_SUCCESS) + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + case QLA8044_RDMDIO: + rval = qla8044_minidump_process_rdmdio(vha, entry_hdr, + &data_ptr); + if (rval != QLA_SUCCESS) + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + case QLA8044_POLLWR: + rval = qla8044_minidump_process_pollwr(vha, entry_hdr, + &data_ptr); + if (rval != QLA_SUCCESS) + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + case QLA82XX_RDNOP: + default: + qla8044_mark_entry_skipped(vha, entry_hdr, i); + break; + } + + data_collected = (uint8_t *)data_ptr - + (uint8_t *)((uint8_t *)ha->md_dump); +skip_nxt_entry: + /* + * next entry in the template + */ + entry_hdr = (struct qla8044_minidump_entry_hdr *) + (((uint8_t *)entry_hdr) + entry_hdr->entry_size); + } + + if (data_collected != ha->md_dump_size) { + ql_log(ql_log_info, vha, 0xb105, + "Dump data mismatch: Data collected: " + "[0x%x], total_data_size:[0x%x]\n", + data_collected, ha->md_dump_size); + rval = QLA_FUNCTION_FAILED; + goto md_failed; + } + + ql_log(ql_log_info, vha, 0xb110, + "Firmware dump saved to temp buffer (%ld/%p %ld/%p).\n", + vha->host_no, ha->md_tmplt_hdr, vha->host_no, ha->md_dump); + ha->fw_dumped = true; + qla2x00_post_uevent_work(vha, QLA_UEVENT_CODE_FW_DUMP); + + + ql_log(ql_log_info, vha, 0xb106, + "Leaving fn: %s Last entry: 0x%x\n", + __func__, i); +md_failed: + return rval; +} + +void +qla8044_get_minidump(struct scsi_qla_host *vha) +{ + struct qla_hw_data *ha = vha->hw; + + if (!qla8044_collect_md_data(vha)) { + ha->fw_dumped = true; + ha->prev_minidump_failed = 0; + } else { + ql_log(ql_log_fatal, vha, 0xb0db, + "%s: Unable to collect minidump\n", + __func__); + ha->prev_minidump_failed = 1; + } +} + +static int +qla8044_poll_flash_status_reg(struct scsi_qla_host *vha) +{ + uint32_t flash_status; + int retries = QLA8044_FLASH_READ_RETRY_COUNT; + int ret_val = QLA_SUCCESS; + + while (retries--) { + ret_val = qla8044_rd_reg_indirect(vha, QLA8044_FLASH_STATUS, + &flash_status); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb13c, + "%s: Failed to read FLASH_STATUS reg.\n", + __func__); + break; + } + if ((flash_status & QLA8044_FLASH_STATUS_READY) == + QLA8044_FLASH_STATUS_READY) + break; + msleep(QLA8044_FLASH_STATUS_REG_POLL_DELAY); + } + + if (!retries) + ret_val = QLA_FUNCTION_FAILED; + + return ret_val; +} + +static int +qla8044_write_flash_status_reg(struct scsi_qla_host *vha, + uint32_t data) +{ + int ret_val = QLA_SUCCESS; + uint32_t cmd; + + cmd = vha->hw->fdt_wrt_sts_reg_cmd; + + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, + QLA8044_FLASH_STATUS_WRITE_DEF_SIG | cmd); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb125, + "%s: Failed to write to FLASH_ADDR.\n", __func__); + goto exit_func; + } + + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, data); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb126, + "%s: Failed to write to FLASH_WRDATA.\n", __func__); + goto exit_func; + } + + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, + QLA8044_FLASH_SECOND_ERASE_MS_VAL); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb127, + "%s: Failed to write to FLASH_CONTROL.\n", __func__); + goto exit_func; + } + + ret_val = qla8044_poll_flash_status_reg(vha); + if (ret_val) + ql_log(ql_log_warn, vha, 0xb128, + "%s: Error polling flash status reg.\n", __func__); + +exit_func: + return ret_val; +} + +/* + * This function assumes that the flash lock is held. + */ +static int +qla8044_unprotect_flash(scsi_qla_host_t *vha) +{ + int ret_val; + struct qla_hw_data *ha = vha->hw; + + ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_enable); + if (ret_val) + ql_log(ql_log_warn, vha, 0xb139, + "%s: Write flash status failed.\n", __func__); + + return ret_val; +} + +/* + * This function assumes that the flash lock is held. + */ +static int +qla8044_protect_flash(scsi_qla_host_t *vha) +{ + int ret_val; + struct qla_hw_data *ha = vha->hw; + + ret_val = qla8044_write_flash_status_reg(vha, ha->fdt_wrt_disable); + if (ret_val) + ql_log(ql_log_warn, vha, 0xb13b, + "%s: Write flash status failed.\n", __func__); + + return ret_val; +} + + +static int +qla8044_erase_flash_sector(struct scsi_qla_host *vha, + uint32_t sector_start_addr) +{ + uint32_t reversed_addr; + int ret_val = QLA_SUCCESS; + + ret_val = qla8044_poll_flash_status_reg(vha); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb12e, + "%s: Poll flash status after erase failed..\n", __func__); + } + + reversed_addr = (((sector_start_addr & 0xFF) << 16) | + (sector_start_addr & 0xFF00) | + ((sector_start_addr & 0xFF0000) >> 16)); + + ret_val = qla8044_wr_reg_indirect(vha, + QLA8044_FLASH_WRDATA, reversed_addr); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb12f, + "%s: Failed to write to FLASH_WRDATA.\n", __func__); + } + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, + QLA8044_FLASH_ERASE_SIG | vha->hw->fdt_erase_cmd); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb130, + "%s: Failed to write to FLASH_ADDR.\n", __func__); + } + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, + QLA8044_FLASH_LAST_ERASE_MS_VAL); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb131, + "%s: Failed write to FLASH_CONTROL.\n", __func__); + } + ret_val = qla8044_poll_flash_status_reg(vha); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb132, + "%s: Poll flash status failed.\n", __func__); + } + + + return ret_val; +} + +/* + * qla8044_flash_write_u32 - Write data to flash + * + * @ha : Pointer to adapter structure + * addr : Flash address to write to + * p_data : Data to be written + * + * Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED + * + * NOTE: Lock should be held on entry + */ +static int +qla8044_flash_write_u32(struct scsi_qla_host *vha, uint32_t addr, + uint32_t *p_data) +{ + int ret_val = QLA_SUCCESS; + + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, + 0x00800000 | (addr >> 2)); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb134, + "%s: Failed write to FLASH_ADDR.\n", __func__); + goto exit_func; + } + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *p_data); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb135, + "%s: Failed write to FLASH_WRDATA.\n", __func__); + goto exit_func; + } + ret_val = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, 0x3D); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb136, + "%s: Failed write to FLASH_CONTROL.\n", __func__); + goto exit_func; + } + ret_val = qla8044_poll_flash_status_reg(vha); + if (ret_val) { + ql_log(ql_log_warn, vha, 0xb137, + "%s: Poll flash status failed.\n", __func__); + } + +exit_func: + return ret_val; +} + +static int +qla8044_write_flash_buffer_mode(scsi_qla_host_t *vha, uint32_t *dwptr, + uint32_t faddr, uint32_t dwords) +{ + int ret = QLA_FUNCTION_FAILED; + uint32_t spi_val; + + if (dwords < QLA8044_MIN_OPTROM_BURST_DWORDS || + dwords > QLA8044_MAX_OPTROM_BURST_DWORDS) { + ql_dbg(ql_dbg_user, vha, 0xb123, + "Got unsupported dwords = 0x%x.\n", + dwords); + return QLA_FUNCTION_FAILED; + } + + qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, &spi_val); + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, + spi_val | QLA8044_FLASH_SPI_CTL); + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, + QLA8044_FLASH_FIRST_TEMP_VAL); + + /* First DWORD write to FLASH_WRDATA */ + ret = qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, + *dwptr++); + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, + QLA8044_FLASH_FIRST_MS_PATTERN); + + ret = qla8044_poll_flash_status_reg(vha); + if (ret) { + ql_log(ql_log_warn, vha, 0xb124, + "%s: Failed.\n", __func__); + goto exit_func; + } + + dwords--; + + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, + QLA8044_FLASH_SECOND_TEMP_VAL); + + + /* Second to N-1 DWORDS writes */ + while (dwords != 1) { + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++); + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, + QLA8044_FLASH_SECOND_MS_PATTERN); + ret = qla8044_poll_flash_status_reg(vha); + if (ret) { + ql_log(ql_log_warn, vha, 0xb129, + "%s: Failed.\n", __func__); + goto exit_func; + } + dwords--; + } + + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_ADDR, + QLA8044_FLASH_FIRST_TEMP_VAL | (faddr >> 2)); + + /* Last DWORD write */ + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_WRDATA, *dwptr++); + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_CONTROL, + QLA8044_FLASH_LAST_MS_PATTERN); + ret = qla8044_poll_flash_status_reg(vha); + if (ret) { + ql_log(ql_log_warn, vha, 0xb12a, + "%s: Failed.\n", __func__); + goto exit_func; + } + qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_STATUS, &spi_val); + + if ((spi_val & QLA8044_FLASH_SPI_CTL) == QLA8044_FLASH_SPI_CTL) { + ql_log(ql_log_warn, vha, 0xb12b, + "%s: Failed.\n", __func__); + spi_val = 0; + /* Operation failed, clear error bit. */ + qla8044_rd_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, + &spi_val); + qla8044_wr_reg_indirect(vha, QLA8044_FLASH_SPI_CONTROL, + spi_val | QLA8044_FLASH_SPI_CTL); + } +exit_func: + return ret; +} + +static int +qla8044_write_flash_dword_mode(scsi_qla_host_t *vha, uint32_t *dwptr, + uint32_t faddr, uint32_t dwords) +{ + int ret = QLA_FUNCTION_FAILED; + uint32_t liter; + + for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) { + ret = qla8044_flash_write_u32(vha, faddr, dwptr); + if (ret) { + ql_dbg(ql_dbg_p3p, vha, 0xb141, + "%s: flash address=%x data=%x.\n", __func__, + faddr, *dwptr); + break; + } + } + + return ret; +} + +int +qla8044_write_optrom_data(struct scsi_qla_host *vha, void *buf, + uint32_t offset, uint32_t length) +{ + int rval = QLA_FUNCTION_FAILED, i, burst_iter_count; + int dword_count, erase_sec_count; + uint32_t erase_offset; + uint8_t *p_cache, *p_src; + + erase_offset = offset; + + p_cache = kcalloc(length, sizeof(uint8_t), GFP_KERNEL); + if (!p_cache) + return QLA_FUNCTION_FAILED; + + memcpy(p_cache, buf, length); + p_src = p_cache; + dword_count = length / sizeof(uint32_t); + /* Since the offset and legth are sector aligned, it will be always + * multiple of burst_iter_count (64) + */ + burst_iter_count = dword_count / QLA8044_MAX_OPTROM_BURST_DWORDS; + erase_sec_count = length / QLA8044_SECTOR_SIZE; + + /* Suspend HBA. */ + scsi_block_requests(vha->host); + /* Lock and enable write for whole operation. */ + qla8044_flash_lock(vha); + qla8044_unprotect_flash(vha); + + /* Erasing the sectors */ + for (i = 0; i < erase_sec_count; i++) { + rval = qla8044_erase_flash_sector(vha, erase_offset); + ql_dbg(ql_dbg_user, vha, 0xb138, + "Done erase of sector=0x%x.\n", + erase_offset); + if (rval) { + ql_log(ql_log_warn, vha, 0xb121, + "Failed to erase the sector having address: " + "0x%x.\n", erase_offset); + goto out; + } + erase_offset += QLA8044_SECTOR_SIZE; + } + ql_dbg(ql_dbg_user, vha, 0xb13f, + "Got write for addr = 0x%x length=0x%x.\n", + offset, length); + + for (i = 0; i < burst_iter_count; i++) { + + /* Go with write. */ + rval = qla8044_write_flash_buffer_mode(vha, (uint32_t *)p_src, + offset, QLA8044_MAX_OPTROM_BURST_DWORDS); + if (rval) { + /* Buffer Mode failed skip to dword mode */ + ql_log(ql_log_warn, vha, 0xb122, + "Failed to write flash in buffer mode, " + "Reverting to slow-write.\n"); + rval = qla8044_write_flash_dword_mode(vha, + (uint32_t *)p_src, offset, + QLA8044_MAX_OPTROM_BURST_DWORDS); + } + p_src += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS; + offset += sizeof(uint32_t) * QLA8044_MAX_OPTROM_BURST_DWORDS; + } + ql_dbg(ql_dbg_user, vha, 0xb133, + "Done writing.\n"); + +out: + qla8044_protect_flash(vha); + qla8044_flash_unlock(vha); + scsi_unblock_requests(vha->host); + kfree(p_cache); + + return rval; +} + +#define LEG_INT_PTR_B31 (1 << 31) +#define LEG_INT_PTR_B30 (1 << 30) +#define PF_BITS_MASK (0xF << 16) +/** + * qla8044_intr_handler() - Process interrupts for the ISP8044 + * @irq: interrupt number + * @dev_id: SCSI driver HA context + * + * Called by system whenever the host adapter generates an interrupt. + * + * Returns handled flag. + */ +irqreturn_t +qla8044_intr_handler(int irq, void *dev_id) +{ + scsi_qla_host_t *vha; + struct qla_hw_data *ha; + struct rsp_que *rsp; + struct device_reg_82xx __iomem *reg; + int status = 0; + unsigned long flags; + unsigned long iter; + uint32_t stat; + uint16_t mb[8]; + uint32_t leg_int_ptr = 0, pf_bit; + + rsp = (struct rsp_que *) dev_id; + if (!rsp) { + ql_log(ql_log_info, NULL, 0xb143, + "%s(): NULL response queue pointer\n", __func__); + return IRQ_NONE; + } + ha = rsp->hw; + vha = pci_get_drvdata(ha->pdev); + + if (unlikely(pci_channel_offline(ha->pdev))) + return IRQ_HANDLED; + + leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET); + + /* Legacy interrupt is valid if bit31 of leg_int_ptr is set */ + if (!(leg_int_ptr & (LEG_INT_PTR_B31))) { + ql_dbg(ql_dbg_p3p, vha, 0xb144, + "%s: Legacy Interrupt Bit 31 not set, " + "spurious interrupt!\n", __func__); + return IRQ_NONE; + } + + pf_bit = ha->portnum << 16; + /* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */ + if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) { + ql_dbg(ql_dbg_p3p, vha, 0xb145, + "%s: Incorrect function ID 0x%x in " + "legacy interrupt register, " + "ha->pf_bit = 0x%x\n", __func__, + (leg_int_ptr & (PF_BITS_MASK)), pf_bit); + return IRQ_NONE; + } + + /* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger + * Control register and poll till Legacy Interrupt Pointer register + * bit32 is 0. + */ + qla8044_wr_reg(ha, LEG_INTR_TRIG_OFFSET, 0); + do { + leg_int_ptr = qla8044_rd_reg(ha, LEG_INTR_PTR_OFFSET); + if ((leg_int_ptr & (PF_BITS_MASK)) != pf_bit) + break; + } while (leg_int_ptr & (LEG_INT_PTR_B30)); + + reg = &ha->iobase->isp82; + spin_lock_irqsave(&ha->hardware_lock, flags); + for (iter = 1; iter--; ) { + + if (rd_reg_dword(®->host_int)) { + stat = rd_reg_dword(®->host_status); + if ((stat & HSRX_RISC_INT) == 0) + break; + + switch (stat & 0xff) { + case 0x1: + case 0x2: + case 0x10: + case 0x11: + qla82xx_mbx_completion(vha, MSW(stat)); + status |= MBX_INTERRUPT; + break; + case 0x12: + mb[0] = MSW(stat); + mb[1] = rd_reg_word(®->mailbox_out[1]); + mb[2] = rd_reg_word(®->mailbox_out[2]); + mb[3] = rd_reg_word(®->mailbox_out[3]); + qla2x00_async_event(vha, rsp, mb); + break; + case 0x13: + qla24xx_process_response_queue(vha, rsp); + break; + default: + ql_dbg(ql_dbg_p3p, vha, 0xb146, + "Unrecognized interrupt type " + "(%d).\n", stat & 0xff); + break; + } + } + wrt_reg_dword(®->host_int, 0); + } + + qla2x00_handle_mbx_completion(ha, status); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return IRQ_HANDLED; +} + +static int +qla8044_idc_dontreset(struct qla_hw_data *ha) +{ + uint32_t idc_ctrl; + + idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL); + return idc_ctrl & DONTRESET_BIT0; +} + +static void +qla8044_clear_rst_ready(scsi_qla_host_t *vha) +{ + uint32_t drv_state; + + drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX); + + /* + * For ISP8044, drv_active register has 1 bit per function, + * shift 1 by func_num to set a bit for the function. + * For ISP82xx, drv_active has 4 bits per function + */ + drv_state &= ~(1 << vha->hw->portnum); + + ql_dbg(ql_dbg_p3p, vha, 0xb13d, + "drv_state: 0x%08x\n", drv_state); + qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state); +} + +int +qla8044_abort_isp(scsi_qla_host_t *vha) +{ + int rval; + uint32_t dev_state; + struct qla_hw_data *ha = vha->hw; + + qla8044_idc_lock(ha); + dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX); + + if (ql2xdontresethba) + qla8044_set_idc_dontreset(vha); + + /* If device_state is NEED_RESET, go ahead with + * Reset,irrespective of ql2xdontresethba. This is to allow a + * non-reset-owner to force a reset. Non-reset-owner sets + * the IDC_CTRL BIT0 to prevent Reset-owner from doing a Reset + * and then forces a Reset by setting device_state to + * NEED_RESET. */ + if (dev_state == QLA8XXX_DEV_READY) { + /* If IDC_CTRL DONTRESETHBA_BIT0 is set don't do reset + * recovery */ + if (qla8044_idc_dontreset(ha) == DONTRESET_BIT0) { + ql_dbg(ql_dbg_p3p, vha, 0xb13e, + "Reset recovery disabled\n"); + rval = QLA_FUNCTION_FAILED; + goto exit_isp_reset; + } + + ql_dbg(ql_dbg_p3p, vha, 0xb140, + "HW State: NEED RESET\n"); + qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, + QLA8XXX_DEV_NEED_RESET); + } + + /* For ISP8044, Reset owner is NIC, iSCSI or FCOE based on priority + * and which drivers are present. Unlike ISP82XX, the function setting + * NEED_RESET, may not be the Reset owner. */ + qla83xx_reset_ownership(vha); + + qla8044_idc_unlock(ha); + rval = qla8044_device_state_handler(vha); + qla8044_idc_lock(ha); + qla8044_clear_rst_ready(vha); + +exit_isp_reset: + qla8044_idc_unlock(ha); + if (rval == QLA_SUCCESS) { + ha->flags.isp82xx_fw_hung = 0; + ha->flags.nic_core_reset_hdlr_active = 0; + rval = qla82xx_restart_isp(vha); + } + + return rval; +} + +void +qla8044_fw_dump(scsi_qla_host_t *vha) +{ + struct qla_hw_data *ha = vha->hw; + + if (!ha->allow_cna_fw_dump) + return; + + scsi_block_requests(vha->host); + ha->flags.isp82xx_no_md_cap = 1; + qla8044_idc_lock(ha); + qla82xx_set_reset_owner(vha); + qla8044_idc_unlock(ha); + qla2x00_wait_for_chip_reset(vha); + scsi_unblock_requests(vha->host); +} |