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Message-Id: <1348082997-12333-16-git-send-email-sony.chacko@qlogic.com>
Date: Wed, 19 Sep 2012 15:29:53 -0400
From: Sony Chacko <sony.chacko@...gic.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, Dept_NX_Linux_NIC_Driver@...gic.com,
Sony Chacko <sony.chacko@...gic.com>
Subject: [PATCH v1 15/19] qlcnic: 83xx CNA inter driver communication mechanism
From: Sony Chacko <sony.chacko@...gic.com>
Inter Driver Communication (IDC) mechanism for 83xx CNA function drivers
CNA function reset recovery process relies on IDC mechanism
Signed-off-by: Rajesh Borundia <rajesh.borundia@...gic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@...gic.com>
Signed-off-by: Sony Chacko <sony.chacko@...gic.com>
---
drivers/net/ethernet/qlogic/qlcnic/Makefile | 2 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 8 +
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 8 +
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h | 168 ++
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c | 1960 ++++++++++++++++++++
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 6 +
6 files changed, 2151 insertions(+), 1 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
diff --git a/drivers/net/ethernet/qlogic/qlcnic/Makefile b/drivers/net/ethernet/qlogic/qlcnic/Makefile
index f5a31ab..47ae1f8 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/Makefile
+++ b/drivers/net/ethernet/qlogic/qlcnic/Makefile
@@ -6,4 +6,4 @@ obj-$(CONFIG_QLCNIC) := qlcnic.o
qlcnic-y := qlcnic_hw.o qlcnic_main.o qlcnic_init.o \
qlcnic_ethtool.o qlcnic_ctx.o qlcnic_io.o \
- qlcnic_83xx_hw.o
+ qlcnic_83xx_hw.o qlcnic_83xx_init.o
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index c0eb350..9d047ad 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -536,6 +536,9 @@ struct qlcnic_hardware_context {
struct qlcnic_nic_intr_coalesce coal;
struct qlcnic_fw_dump fw_dump;
struct qlcnic_fdt fdt;
+ struct qlcnic_83xx_reset reset;
+ struct qlcnic_83xx_idc idc;
+ struct qlcnic_83xx_fw_info fw_info;
struct qlcnic_intrpt_config *intr_tbl;
u32 *reg_tbl;
u32 *ext_reg_tbl;
@@ -1510,6 +1513,10 @@ void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter);
void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter);
/* Functions from qlcnic_init.c */
+int qlcnic_attach(struct qlcnic_adapter *);
+void qlcnic_detach(struct qlcnic_adapter *);
+void qlcnic_down(struct qlcnic_adapter *, struct net_device *);
+int qlcnic_up(struct qlcnic_adapter *, struct net_device *);
void qlcnic_restore_indev_addr(struct net_device *, unsigned long);
void qlcnic_schedule_work(struct qlcnic_adapter *, work_func_t, int);
int qlcnic_load_firmware(struct qlcnic_adapter *adapter);
@@ -1598,6 +1605,7 @@ int qlcnic_is_valid_nic_func(struct qlcnic_adapter *, u8);
void qlcnic_free_mbx_args(struct qlcnic_cmd_args *cmd);
void qlcnic_napi_del(struct qlcnic_adapter *);
int qlcnic_check_rx_tagging(struct qlcnic_adapter *, struct sk_buff *, u16 *);
+int qlcnic_check_temp(struct qlcnic_adapter *adapter);
int qlcnic_alloc_rx_skb(struct qlcnic_adapter *, struct qlcnic_host_rds_ring *,
struct qlcnic_rx_buffer *);
void qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 9c51cea..0dab741 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -162,6 +162,8 @@ static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
static struct qlcnic_nic_template qlcnic_83xx_ops = {
.config_bridged_mode = qlcnic_config_bridged_mode,
.config_led = qlcnic_config_led,
+ .request_reset = qlcnic_83xx_idc_request_reset,
+ .cancel_idc_work = qlcnic_83xx_idc_exit,
.napi_add = qlcnic_83xx_napi_add,
.config_ipaddr = qlcnic_83xx_config_ipaddr,
.clear_legacy_intr = qlcnic_83xx_clear_legacy_intr,
@@ -1104,6 +1106,12 @@ int qlcnic_83xx_mbx_op(struct qlcnic_adapter *adapter,
struct qlcnic_hardware_context *ahw = adapter->ahw;
opcode = LSW(le32_to_cpu(cmd->req.arg[0]));
+ if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
+ dev_info(&adapter->pdev->dev,
+ "Mailbox cmd attempted, 0x%x\n", opcode);
+ dev_info(&adapter->pdev->dev, "Mailbox detached\n");
+ return 0;
+ }
spin_lock_irqsave(&ahw->mbx_lock, flags);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 1c2adb4..3215eb0 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -78,6 +78,30 @@
/* PEG status definitions */
#define QLC_83xx_CMDPEG_COMPLETE 0xff01
+/* Firmware image definitions */
+#define QLC_83XX_BOOTLOADER_FLASH_ADDR 0x10000
+#define QLC_83XX_FW_FILE_NAME "83xx_fw.bin"
+
+#define QLC_83XX_BOOT_FROM_FLASH 0
+#define QLC_83XX_BOOT_FROM_FILE 0x12345678
+
+/* Reset template definitions */
+#define QLC_83XX_MAX_RESET_SEQ_ENTRIES 16
+#define QLC_83XX_RESTART_TEMPLATE_SIZE 0x2000
+#define QLC_83XX_RESET_TEMPLATE_ADDR 0x4F0000
+#define QLC_83XX_RESET_SEQ_VERSION 0x0101
+
+#define OPCODE_NOP 0x0000
+#define OPCODE_WRITE_LIST 0x0001
+#define OPCODE_READ_WRITE_LIST 0x0002
+#define OPCODE_POLL_LIST 0x0004
+#define OPCODE_POLL_WRITE_LIST 0x0008
+#define OPCODE_READ_MODIFY_WRITE 0x0010
+#define OPCODE_SEQ_PAUSE 0x0020
+#define OPCODE_SEQ_END 0x0040
+#define OPCODE_TMPL_END 0x0080
+#define OPCODE_POLL_READ_LIST 0x0100
+
#define qlcnic_83xx_pktln(sts) \
((sts >> 32) & 0x3FFF)
#define qlcnic_83xx_hndl(sts) \
@@ -225,9 +249,115 @@ struct qlcnic_macvlan_mbx {
__le16 vlan;
};
+struct qlcnic_83xx_fw_info {
+ u16 major_fw_version;
+ u8 minor_fw_version;
+ u8 sub_fw_version;
+ u8 fw_build_num;
+ u8 load_from_file;
+ const struct firmware *fw;
+};
+
+/* Template Header */
+struct qlcnic_83xx_reset_template_hdr {
+ __le16 version;
+ __le16 signature;
+ __le16 size;
+ __le16 entries;
+ __le16 hdr_size;
+ __le16 checksum;
+ __le16 init_seq_offset;
+ __le16 start_seq_offset;
+} __packed;
+
+/* Common Entry Header. */
+struct qlcnic_83xx_reset_entry_hdr {
+ __le16 cmd;
+ __le16 size;
+ __le16 count;
+ __le16 delay;
+} __packed;
+
+/* Generic poll entry type. */
+struct qlcnic_83xx_poll {
+ __le32 test_mask;
+ __le32 test_value;
+} __packed;
+
+/* Read modify write entry type. */
+struct qlcnic_83xx_rmw {
+ __le32 test_mask;
+ __le32 xor_value;
+ __le32 or_value;
+ u8 shl;
+ u8 shr;
+ u8 index_a;
+ u8 rsvd;
+} __packed;
+
+/* Generic Entry Item with 2 DWords. */
+struct qlcnic_83xx_entry {
+ __le32 arg1;
+ __le32 arg2;
+} __packed;
+
+/* Generic Entry Item with 4 DWords.*/
+struct qlcnic_83xx_quad_entry {
+ __le32 dr_addr;
+ __le32 dr_value;
+ __le32 ar_addr;
+ __le32 ar_value;
+} __packed;
+
+struct qlcnic_83xx_reset {
+ int seq_index;
+ int seq_error ;
+ int array_index;
+ u32 array[QLC_83XX_MAX_RESET_SEQ_ENTRIES];
+ u8 *buff;
+ u8 *stop_offset;
+ u8 *start_offset;
+ u8 *init_offset;
+ struct qlcnic_83xx_reset_template_hdr *hdr;
+ u8 seq_end;
+ u8 template_end;
+};
+
+#define QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY 0x1
+#define QLC_83XX_IDC_GRACEFULL_RESET 0x2
+#define QLC_83XX_IDC_TIMESTAMP 0
+#define QLC_83XX_IDC_DURATION 1
+#define QLC_83XX_IDC_INIT_TIMEOUT_SECS 30
+#define QLC_83XX_IDC_RESET_ACK_TIMEOUT_SECS 10
+#define QLC_83XX_IDC_RESET_TIMEOUT_SECS 10
+#define QLC_83XX_IDC_QUIESCE_ACK_TIMEOUT_SECS 20
+#define QLC_83XX_IDC_FW_POLL_DELAY (1 * HZ)
+#define QLC_83XX_IDC_FW_FAIL_THRESH 2
+#define QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO 8
+#define QLC_83XX_IDC_MAX_CNA_FUNCTIONS 16
+#define QLC_83XX_IDC_MAJOR_VERSION 1
+#define QLC_83XX_IDC_MINOR_VERSION 0
+#define QLC_83XX_IDC_FLASH_PARAM_ADDR 0x3e8020
/* Mailbox process AEN count */
#define QLC_83XX_MBX_AEN_CNT 5
+
+struct qlcnic_adapter;
+struct qlcnic_83xx_idc {
+ u64 sec_counter;
+ u64 delay;
+ unsigned long status;
+ int err_code;
+ int collect_dump;
+ u8 curr_state;
+ u8 prev_state;
+ u8 vnic_state;
+ u8 vnic_wait_limit;
+ u8 quiesce_req;
+ int (*ready_state_entry_action) (struct qlcnic_adapter *);
+ char **name;
+};
+
#define QLC_83XX_MODULE_LOADED 1
#define QLC_83XX_MBX_READY 2
#define QLC_83XX_MBX_AEN_ACK 3
@@ -367,15 +497,32 @@ int qlcnic_83xx_config_rss(struct qlcnic_adapter *, int);
int qlcnic_83xx_config_intr_coalesce(struct qlcnic_adapter *);
void qlcnic_83xx_change_l2_filter(struct qlcnic_adapter *, u64 *, __le16);
int qlcnic_83xx_napi_add(struct qlcnic_adapter *, struct net_device *);
+int qlcnic_83xx_init(struct qlcnic_adapter *);
int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *, struct qlcnic_pci_info *);
int qlcnic_83xx_set_nic_info(struct qlcnic_adapter *, struct qlcnic_info *);
+int qlcnic_83xx_idc_ready_state_entry_action(struct qlcnic_adapter *);
+int qlcnic_83xx_set_default_offload_settings(struct qlcnic_adapter *);
void qlcnic_83xx_register_nic_idc_func(struct qlcnic_adapter *, int);
void qlcnic_83xx_config_led(struct qlcnic_adapter *, u32, u32);
+/* 83xx MS memory access API's */
+int qlcnic_83xx_ms_mem_write128(struct qlcnic_adapter *, u64, u32 *, u32);
void qlcnic_ind_wr(struct qlcnic_adapter *, u32, u32);
u32 qlcnic_ind_rd(struct qlcnic_adapter *, u32);
+
+/* 83xx flash operations */
+int qlcnic_83xx_flash_read32(struct qlcnic_adapter *, u32, u8 *, int);
+int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *,
+ u32, u8 *, int);
+int qlcnic_83xx_erase_flash_sector(struct qlcnic_adapter *, u32);
+int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *, u32, u32 *, int);
+int qlcnic_83xx_flash_write32(struct qlcnic_adapter *, u32, u32 *);
+int qlcnic_83xx_lock_flash(struct qlcnic_adapter *);
+void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *);
void qlcnic_83xx_get_stats(struct qlcnic_adapter *,
struct ethtool_stats *, u64 *);
+/* 83xx reset template operations */
+int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev);
void qlcnic_83xx_free_reset_template(struct qlcnic_adapter *);
int qlcnic_83xx_create_rx_ctx(struct qlcnic_adapter *);
int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *,
@@ -445,4 +592,25 @@ int qlcnic_83xx_save_flash_status(struct qlcnic_adapter *);
int qlcnic_83xx_restore_flash_status(struct qlcnic_adapter *, int);
int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *);
int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *);
+
+int qlcnic_83xx_erase_flash_sector(struct qlcnic_adapter *, u32);
+int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *, u32, u32 *, int);
+int qlcnic_83xx_flash_write32(struct qlcnic_adapter *, u32, u32 *);
+int qlcnic_83xx_lock_flash(struct qlcnic_adapter *);
+void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *);
+int qlcnic_83xx_save_flash_status(struct qlcnic_adapter *);
+int qlcnic_83xx_restore_flash_status(struct qlcnic_adapter *, int);
+int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *);
+int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *);
+
+int qlcnic_83xx_init(struct qlcnic_adapter *);
+int qlcnic_83xx_idc_ready_state_entry_action(struct qlcnic_adapter *);
+int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev);
+int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter);
+void qlcnic_83xx_idc_poll_dev_state(struct work_struct *);
+int qlcnic_83xx_restart_hw(struct qlcnic_adapter *);
+int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *);
+int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *);
+void qlcnic_83xx_idc_exit(struct qlcnic_adapter *);
+void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *, u32);
#endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
new file mode 100644
index 0000000..321958c
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -0,0 +1,1960 @@
+#include "qlcnic.h"
+#include "qlcnic_hw.h"
+
+static int
+qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter);
+static int
+qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter);
+
+static const char * const qlcnic_83xx_idc_states[] = {
+ "Unknown",
+ "Cold",
+ "Init",
+ "Ready",
+ "Need Reset",
+ "Need Quiesce",
+ "Failed",
+ "Quiesce"
+};
+
+/* IDC Device States */
+enum qlcnic_83xx_states {
+ QLC_83XX_IDC_DEV_UNKNOWN,
+ QLC_83XX_IDC_DEV_COLD,
+ QLC_83XX_IDC_DEV_INIT,
+ QLC_83XX_IDC_DEV_READY,
+ QLC_83XX_IDC_DEV_NEED_RESET,
+ QLC_83XX_IDC_DEV_NEED_QUISCENT,
+ QLC_83XX_IDC_DEV_FAILED,
+ QLC_83XX_IDC_DEV_QUISCENT
+};
+
+static int
+qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter *adapter)
+{
+ u32 val;
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+
+ if ((val & 0xFFFF))
+ return 1;
+ else
+ return 0;
+}
+
+static void qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter *adapter)
+{
+ u32 cur, prev;
+ cur = adapter->ahw->idc.curr_state;
+ prev = adapter->ahw->idc.prev_state;
+
+ dev_info(&adapter->pdev->dev,
+ "current state = %s, prev state = %s\n",
+ adapter->ahw->idc.name[cur],
+ adapter->ahw->idc.name[prev]);
+}
+
+static int qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter *adapter,
+ u8 mode, int lock)
+{
+ u32 val;
+ int seconds;
+
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ val = adapter->portnum & 0xf;
+ val |= mode << 7;
+ if (mode)
+ seconds = jiffies/HZ - adapter->ahw->idc.sec_counter;
+ else
+ seconds = jiffies/HZ;
+
+ val |= seconds << 8;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT, val);
+ adapter->ahw->idc.sec_counter = jiffies/HZ;
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static void qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter *adapter)
+{
+ u32 val;
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION);
+ val = val & ~(0x3 << (adapter->portnum * 2));
+ val = val | (QLC_83XX_IDC_MINOR_VERSION << (adapter->portnum * 2));
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION, val);
+}
+
+static int qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter *adapter,
+ int lock)
+{
+ u32 val;
+
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
+ val = val & ~0xFF;
+ val = val | QLC_83XX_IDC_MAJOR_VERSION;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION, val);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int
+qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter *adapter,
+ int status, int lock)
+{
+ u32 val;
+
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+
+ if (status)
+ val = val | (1 << adapter->portnum);
+ else
+ val = val & ~(1 << adapter->portnum);
+
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
+
+ qlcnic_83xx_idc_update_minor_version(adapter);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter *adapter)
+{
+ u32 val;
+ u8 version;
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
+ version = val & 0xFF;
+
+ if (version != QLC_83XX_IDC_MAJOR_VERSION) {
+ dev_info(&adapter->pdev->dev,
+ "%s: mismatch. version 0x%x, expected version 0x%x\n",
+ __func__, version, QLC_83XX_IDC_MAJOR_VERSION);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter *adapter,
+ int lock)
+{
+ u32 val;
+
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, 0);
+ /* Clear gracefull reset bit */
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+ val &= ~QLC_83XX_IDC_GRACEFULL_RESET;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter *adapter,
+ int flag, int lock)
+{
+ u32 val;
+
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
+ if (flag)
+ val = val | (1 << adapter->portnum);
+ else
+ val = val & ~(1 << adapter->portnum);
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, val);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter *adapter,
+ int time_limit)
+{
+ u64 seconds;
+
+ seconds = jiffies/HZ - adapter->ahw->idc.sec_counter;
+ if (seconds <= time_limit)
+ return 0;
+ else
+ return -EBUSY;
+}
+
+/**
+ * qlcnic_83xx_idc_check_reset_ack_reg
+ *
+ * @adapter: adapter structure
+ *
+ * Return 0 if all functions have acknowledged the reset request.
+ * Check ACK wait limit and clear the functions which failed to ACK
+ *
+ **/
+static int qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter *adapter)
+{
+ u32 ack, presence, val;
+
+ ack = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
+ presence = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+ dev_info(&adapter->pdev->dev,
+ "%s: ack = 0x%x, presence = 0x%x\n", __func__, ack, presence);
+ if (~ack & presence) {
+ if (qlcnic_83xx_idc_check_timeout(adapter,
+ QLC_83XX_IDC_RESET_TIMEOUT_SECS)) {
+ /* Clear functions which failed to ACK */
+ dev_info(&adapter->pdev->dev,
+ "%s: ACK wait exceeds time limit\n", __func__);
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+ val = val & ~(ack^presence);
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
+ dev_info(&adapter->pdev->dev,
+ "%s: updated drv presence reg = 0x%x\n",
+ __func__, val);
+ qlcnic_83xx_unlock_driver(adapter);
+ return 0;
+
+ } else {
+ return 1;
+ }
+ } else {
+ dev_info(&adapter->pdev->dev,
+ "%s: Reset ACK received from all functions\n",
+ __func__);
+ return 0;
+ }
+}
+
+/**
+ * qlcnic_83xx_idc_tx_soft_reset
+ *
+ * @adapter: adapter structure
+ *
+ * Handle context deletion and recreation request from transmit routine
+ *
+ * Returns -EBUSY or Success (0)
+ *
+ **/
+static int qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EBUSY;
+
+ netif_device_detach(netdev);
+ qlcnic_down(adapter, netdev);
+ qlcnic_up(adapter, netdev);
+ netif_device_attach(netdev);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ dev_err(&adapter->pdev->dev, "%s:\n", __func__);
+
+ adapter->netdev->trans_start = jiffies;
+
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_detach_driver
+ *
+ * @adapter: adapter structure
+ * Detach net interface, stop TX and cleanup resources before the HW reset.
+ * Returns: None
+ *
+ **/
+static void qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter *adapter)
+{
+ int i;
+
+ struct net_device *netdev = adapter->netdev;
+
+ netif_device_detach(netdev);
+ /* Disable mailbox interrupt */
+ QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, 0);
+ qlcnic_down(adapter, netdev);
+ for (i = 0; i < adapter->ahw->num_msix; i++) {
+ adapter->ahw->intr_tbl[i].id = i;
+ adapter->ahw->intr_tbl[i].enabled = 0;
+ adapter->ahw->intr_tbl[i].src = 0;
+ }
+}
+
+/**
+ * qlcnic_83xx_idc_attach_driver
+ *
+ * @adapter: adapter structure
+ *
+ * Re-attach and re-enable net interface
+ * Returns: None
+ *
+ **/
+static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+
+ if (netif_running(netdev)) {
+ if (qlcnic_up(adapter, netdev))
+ goto done;
+
+ qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+ }
+done:
+ netif_device_attach(netdev);
+ if (netif_running(netdev)) {
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ }
+}
+
+static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter,
+ int lock)
+{
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ qlcnic_83xx_idc_clear_registers(adapter, 0);
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_FAILED);
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ qlcnic_83xx_idc_log_state_history(adapter);
+ dev_info(&adapter->pdev->dev, "Device will enter failed state\n");
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter *adapter,
+ int lock)
+{
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_INIT);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_enter_need_quiscent(struct qlcnic_adapter *adapter,
+ int lock)
+{
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
+ QLC_83XX_IDC_DEV_NEED_QUISCENT);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int
+qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter *adapter, int lock)
+{
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
+ QLC_83XX_IDC_DEV_NEED_RESET);
+
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter *adapter,
+ int lock)
+{
+ if (lock) {
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EBUSY;
+ }
+
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_READY);
+ if (lock)
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_find_reset_owner_id
+ *
+ * @adapter: adapter structure
+ *
+ * NIC gets precedence over ISCSI and ISCSI has precedence over FCOE.
+ * Within the same class, function with lowest PCI ID assumes ownership
+ *
+ * Returns: reset owner id or failure indication (-EIO)
+ *
+ **/
+static int qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter *adapter)
+{
+ u32 reg, reg1, reg2, i, j, owner, class;
+
+ reg1 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_1);
+ reg2 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_2);
+ owner = QLCNIC_TYPE_NIC;
+ i = 0;
+ j = 0;
+ reg = reg1;
+
+ do {
+ class = (((reg & (0xF << j*4)) >> j*4) & 0x3);
+ if (class == owner)
+ break;
+ if (i == (QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO - 1)) {
+ reg = reg2;
+ j = 0;
+ } else {
+ j++;
+ }
+
+ if (i == (QLC_83XX_IDC_MAX_CNA_FUNCTIONS - 1)) {
+ if (owner == QLCNIC_TYPE_NIC)
+ owner = QLCNIC_TYPE_ISCSI;
+ else if (owner == QLCNIC_TYPE_ISCSI)
+ owner = QLCNIC_TYPE_FCOE;
+ else if (owner == QLCNIC_TYPE_FCOE)
+ return -EIO;
+
+ reg = reg1;
+ j = 0;
+ i = 0;
+ }
+
+ } while (i++ < QLC_83XX_IDC_MAX_CNA_FUNCTIONS);
+
+ return i;
+}
+
+static int qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter *adapter, int lock)
+{
+ int ret = 0;
+
+ ret = qlcnic_83xx_restart_hw(adapter);
+
+ if (ret) {
+ qlcnic_83xx_idc_enter_failed_state(adapter, lock);
+ } else {
+ qlcnic_83xx_idc_clear_registers(adapter, lock);
+ ret = qlcnic_83xx_idc_enter_ready_state(adapter, lock);
+ }
+
+ return ret;
+}
+
+static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter)
+{
+ u32 status;
+
+ status = QLCRD(adapter, QLCNIC_PEG_HALT_STATUS1);
+
+ if (status & QLCNIC_RCODE_FATAL_ERROR) {
+ dev_err(&adapter->pdev->dev,
+ "peg halt status1=0x%x\n", status);
+ if (QLCNIC_FWERROR_CODE(status) ==
+ QLCNIC_FWERROR_FAN_FAILURE) {
+ dev_err(&adapter->pdev->dev,
+ "On board active cooling fan failed. "
+ "Device has been halted.\n");
+ dev_err(&adapter->pdev->dev,
+ "Replace the adapter.\n");
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
+{
+ qlcnic_83xx_enable_mbx_intrpt(adapter);
+ if ((adapter->flags & QLCNIC_MSIX_ENABLED)) {
+ if (qlcnic_83xx_config_intrpt(adapter, 1)) {
+ netdev_err(adapter->netdev,
+ "Failed to enable mbx intr\n");
+ return -EIO;
+ }
+ }
+
+ if (qlcnic_83xx_configure_opmode(adapter)) {
+ qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+ return -EIO;
+ }
+
+ if (adapter->nic_ops->init_driver(adapter)) {
+ qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+ return -EIO;
+ }
+
+ qlcnic_83xx_idc_attach_driver(adapter);
+
+ return 0;
+}
+
+static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter)
+{
+ qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+ qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+ set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
+ adapter->ahw->idc.quiesce_req = 0;
+ adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
+ adapter->ahw->idc.err_code = 0;
+ adapter->ahw->idc.collect_dump = 0;
+}
+
+/**
+ * qlcnic_83xx_idc_ready_state_entry_action
+ *
+ * @adapter: adapter structure
+ *
+ * Perform ready state initialization, this routine will get invoked only
+ * once from READY state.
+ *
+ * Returns: -EIO or 0
+ *
+ **/
+int qlcnic_83xx_idc_ready_state_entry_action(struct qlcnic_adapter *adapter)
+{
+ if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) {
+ qlcnic_83xx_idc_update_idc_params(adapter);
+ /* Re-attach the device if required */
+ if ((adapter->ahw->idc.prev_state ==
+ QLC_83XX_IDC_DEV_NEED_RESET) ||
+ (adapter->ahw->idc.prev_state ==
+ QLC_83XX_IDC_DEV_INIT)) {
+ if (qlcnic_83xx_idc_reattach_driver(adapter))
+ return -EIO;
+
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_vnic_pf_ready_state_entry_action
+ *
+ * @adapter: adapter structure
+ *
+ * Ensure vNIC mode privileged function becomes ready only when vNIC mode is
+ * set ready by vNIC management function.
+ * If vNIC mode is ready, perform ready state initialization.
+ *
+ * Returns: -EIO or 0
+ *
+ **/
+int
+qlcnic_83xx_idc_vnic_pf_ready_state_entry_action(struct qlcnic_adapter *adapter)
+{
+ u32 state;
+ struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+ /* Privileged function waits till mgmt function enables VNIC mode */
+ state = QLCRDX(adapter->ahw, QLC_83XX_VNIC_STATE);
+ if (state != QLCNIC_DEV_NPAR_OPER) {
+ if (!ahw->idc.vnic_wait_limit--) {
+ qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+ return -EIO;
+ }
+
+ dev_info(&adapter->pdev->dev, "vNIC mode disabled\n");
+ return -EIO;
+
+ } else {
+ /* Perform one time initialization from ready state */
+ if (adapter->ahw->idc.vnic_state != QLCNIC_DEV_NPAR_OPER) {
+ qlcnic_83xx_idc_update_idc_params(adapter);
+
+ /* If the previous state is UNKNOWN, device will be
+ already attached properly */
+ if (adapter->ahw->idc.prev_state !=
+ QLC_83XX_IDC_DEV_UNKNOWN) {
+ if (qlcnic_83xx_idc_reattach_driver(adapter))
+ return -EIO;
+ }
+
+ adapter->ahw->idc.vnic_state = QLCNIC_DEV_NPAR_OPER;
+ dev_info(&adapter->pdev->dev, "vNIC mode enabled\n");
+ }
+ }
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_unknown_state_handler(struct qlcnic_adapter *adapter)
+{
+ adapter->ahw->idc.err_code = -EIO;
+ dev_err(&adapter->pdev->dev,
+ "%s: Device in unknown state\n", __func__);
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_cold_state_handler
+ *
+ * @adapter: adapter structure
+ *
+ * If HW is up and running device will enter READY state.
+ * If host file system based firmware image needs to be loaded, device is
+ * forced to start with the file firmware image.
+ *
+ * Returns: Success (0) or -EIO
+ *
+ **/
+static int qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter *adapter)
+{
+ qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 0);
+ qlcnic_83xx_idc_update_audit_reg(adapter, 1, 0);
+ if (adapter->ahw->fw_info.load_from_file) {
+ qlcnic_83xx_idc_restart_hw(adapter, 0);
+ } else {
+ if (qlcnic_83xx_check_hw_status(adapter)) {
+ qlcnic_83xx_idc_enter_failed_state(adapter, 0);
+ return -EIO;
+ } else {
+ qlcnic_83xx_idc_enter_ready_state(adapter, 0);
+ }
+ }
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_init_state_handler
+ *
+ * @adapter: adapter structure
+ *
+ * Reset owner will restart the device from this state.
+ * Device will enter failed state if it remains
+ * in this state for more than DEV_INIT time limit.
+ *
+ * Returns:
+ *
+ **/
+static int qlcnic_83xx_idc_init_state_handler(struct qlcnic_adapter *adapter)
+{
+ int ret = 0;
+ u32 owner;
+
+ if (adapter->ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) {
+ owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
+ if (adapter->ahw->pci_func == owner)
+ ret = qlcnic_83xx_idc_restart_hw(adapter, 1);
+ } else {
+ ret = qlcnic_83xx_idc_check_timeout(adapter,
+ QLC_83XX_IDC_INIT_TIMEOUT_SECS);
+ return ret;
+ }
+
+ return ret;
+}
+
+/**
+ * qlcnic_83xx_idc_ready_state_handler
+ *
+ * @adapter: adapter structure
+ *
+ * Perform IDC protocol specicifed actions after monitoring device temperature,
+ * FW status, reset and quiesce requests.
+ *
+ * Returns: 0 or -EIO
+ *
+ **/
+static int qlcnic_83xx_idc_ready_state_handler(struct qlcnic_adapter *adapter)
+{
+ u32 val;
+ struct qlcnic_hardware_context *ahw = adapter->ahw;
+ int ret = 0;
+
+ /* Perform NIC configuration based ready state entry actions */
+ if (ahw->idc.ready_state_entry_action(adapter))
+ return -EIO;
+
+ if (qlcnic_check_temp(adapter)) {
+ if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
+ qlcnic_83xx_idc_check_fan_failure(adapter);
+ dev_err(&adapter->pdev->dev,
+ "Error: device temperature %d above limits\n",
+ adapter->ahw->temp);
+ clear_bit(QLC_83XX_MBX_READY,
+ &adapter->ahw->idc.status);
+ set_bit(__QLCNIC_RESETTING, &adapter->state);
+ qlcnic_83xx_idc_detach_driver(adapter);
+ qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+ return -EIO;
+ }
+ }
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+
+ ret = qlcnic_83xx_check_heartbeat(adapter);
+ if (ret) {
+ adapter->flags |= QLCNIC_FW_HANG;
+ if (!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
+ clear_bit(QLC_83XX_MBX_READY,
+ &adapter->ahw->idc.status);
+ set_bit(__QLCNIC_RESETTING, &adapter->state);
+ qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
+ }
+ return -EIO;
+ }
+
+ if ((val & QLC_83XX_IDC_GRACEFULL_RESET) ||
+ adapter->ahw->idc.collect_dump) {
+ /* Move to need reset state and prepare for reset */
+ qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
+ return ret;
+
+ }
+
+ /* Check for soft reset request */
+ if (adapter->ahw->reset_context &&
+ !(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
+ qlcnic_83xx_idc_tx_soft_reset(adapter);
+ return ret;
+ }
+
+ /* Move to need quiesce state if requested */
+ if (adapter->ahw->idc.quiesce_req) {
+ qlcnic_83xx_idc_enter_need_quiscent(adapter, 1);
+ qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+ return ret;
+ }
+
+ return ret;
+}
+
+/**
+ * qlcnic_83xx_idc_need_reset_state_handler
+ *
+ * @adapter: adapter structure
+ *
+ * Device will remain in this state until:
+ * Reset request ACK's are recieved from all the functions
+ * Wait time exceeds max time limit
+ *
+ * Source States:
+ * Destination States:
+ *
+ * Returns: 0 or -EIO
+ *
+ **/
+static int
+qlcnic_83xx_idc_need_reset_state_handler(struct qlcnic_adapter *adapter)
+{
+ int ret = 0;
+
+ if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) {
+ qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
+ qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+ set_bit(__QLCNIC_RESETTING, &adapter->state);
+ clear_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+
+ qlcnic_83xx_idc_detach_driver(adapter);
+ }
+
+ /* Check ACK from other functions */
+ ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter);
+ if (ret) {
+ dev_info(&adapter->pdev->dev,
+ "%s: Waiting for reset ACK\n", __func__);
+ return 0;
+ }
+
+ /* Transit to INIT state and restart the HW */
+ qlcnic_83xx_idc_enter_init_state(adapter, 1);
+
+ return ret;
+}
+
+static int
+qlcnic_83xx_idc_need_quiesce_state_handler(struct qlcnic_adapter *adapter)
+{
+ dev_err(&adapter->pdev->dev, "%s: TBD\n", __func__);
+ return 0;
+}
+
+static int qlcnic_83xx_idc_failed_state_handler(struct qlcnic_adapter *adapter)
+{
+ dev_err(&adapter->pdev->dev,
+ "%s: please reboot!!\n", __func__);
+ adapter->ahw->idc.err_code = -EIO;
+
+ return 0;
+}
+
+static int qlcnic_83xx_idc_quiesce_state_handler(struct qlcnic_adapter *adapter)
+{
+ dev_info(&adapter->pdev->dev,
+ "%s: TBD\n", __func__);
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_check_dev_state_validity
+ *
+ * @adapter: adapter structure
+ * @state: IDC destination state
+ *
+ * Ensure state transitions are according to the IDC protocol.
+ *
+ * Returns: Success (0) or FAILURE (1)
+ *
+ **/
+static int
+qlcnic_83xx_idc_check_dev_state_validity(struct qlcnic_adapter *adapter,
+ u32 state)
+{
+ u32 cur, prev, next;
+
+ cur = adapter->ahw->idc.curr_state;
+ prev = adapter->ahw->idc.prev_state;
+ next = state;
+
+ if ((next < QLC_83XX_IDC_DEV_COLD) ||
+ (next > QLC_83XX_IDC_DEV_QUISCENT)) {
+ dev_err(&adapter->pdev->dev,
+ "%s: curr %d, prev %d, next state %d is invalid\n",
+ __func__, cur, prev, state);
+ return 1;
+ }
+
+ if ((cur == QLC_83XX_IDC_DEV_UNKNOWN) &&
+ (prev == QLC_83XX_IDC_DEV_UNKNOWN)) {
+ if ((next != QLC_83XX_IDC_DEV_COLD) &&
+ (next != QLC_83XX_IDC_DEV_READY)) {
+ dev_err(&adapter->pdev->dev,
+ "%s: failed, cur %d prev %d next %d\n",
+ __func__, cur, prev, next);
+ return 1;
+ }
+ }
+
+ if (next == QLC_83XX_IDC_DEV_INIT) {
+ if ((prev != QLC_83XX_IDC_DEV_INIT) &&
+ (prev != QLC_83XX_IDC_DEV_COLD) &&
+ (prev != QLC_83XX_IDC_DEV_NEED_RESET)) {
+ dev_err(&adapter->pdev->dev,
+ "%s: failed, cur %d prev %d next %d\n",
+ __func__, cur, prev, next);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_poll_dev_state
+ *
+ * @work: kernel work queue structure used to schedule the function
+ *
+ * Poll device state periodically and perform state specific
+ * actions defined by Inter Driver Communication (IDC) protocol.
+ *
+ * Returns: None
+ *
+ **/
+void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
+{
+ struct qlcnic_adapter *adapter;
+ u32 state;
+
+ adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
+ state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
+
+ if (qlcnic_83xx_idc_check_dev_state_validity(adapter, state)) {
+ qlcnic_83xx_idc_log_state_history(adapter);
+ adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
+ } else {
+ adapter->ahw->idc.curr_state = state;
+ }
+
+ switch (adapter->ahw->idc.curr_state) {
+ case QLC_83XX_IDC_DEV_READY:
+ qlcnic_83xx_idc_ready_state_handler(adapter);
+ break;
+
+ case QLC_83XX_IDC_DEV_NEED_RESET:
+ qlcnic_83xx_idc_need_reset_state_handler(adapter);
+ break;
+
+ case QLC_83XX_IDC_DEV_NEED_QUISCENT:
+ qlcnic_83xx_idc_need_quiesce_state_handler(adapter);
+ break;
+
+ case QLC_83XX_IDC_DEV_FAILED:
+ qlcnic_83xx_idc_failed_state_handler(adapter);
+ return;
+
+ case QLC_83XX_IDC_DEV_INIT:
+ qlcnic_83xx_idc_init_state_handler(adapter);
+ break;
+
+ case QLC_83XX_IDC_DEV_QUISCENT:
+ qlcnic_83xx_idc_quiesce_state_handler(adapter);
+ break;
+
+ default:
+ qlcnic_83xx_idc_unknown_state_handler(adapter);
+ return;
+ }
+
+ adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
+
+ /* Re-schedule the function */
+ if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status))
+ qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
+ adapter->ahw->idc.delay);
+}
+
+static void qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter *adapter)
+{
+ u32 idc_params, val;
+
+ if (qlcnic_83xx_lockless_flash_read32(adapter,
+ QLC_83XX_IDC_FLASH_PARAM_ADDR,
+ (u8 *)&idc_params, 1)) {
+ dev_info(&adapter->pdev->dev,
+ "%s: failed to get IDC params from flash.\n", __func__);
+ adapter->dev_init_timeo = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
+ adapter->reset_ack_timeo = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
+ } else {
+ adapter->dev_init_timeo = idc_params & 0xFFFF;
+ adapter->reset_ack_timeo = ((idc_params >> 16) & 0xFFFF);
+ }
+
+ adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
+ adapter->ahw->idc.prev_state = QLC_83XX_IDC_DEV_UNKNOWN;
+ adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
+ adapter->ahw->idc.err_code = 0;
+ adapter->ahw->idc.collect_dump = 0;
+ adapter->ahw->idc.name = (char **)qlcnic_83xx_idc_states;
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+ set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
+
+ /* Check if reset recovery is disabled */
+ if (!qlcnic_auto_fw_reset) {
+ /* Propagate do not reset request to other functions */
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+ val = val | QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+ }
+}
+
+/**
+ * qlcnic_83xx_idc_first_to_load_function_handler
+ *
+ * @adapter: adapter structure
+ *
+ * Peform first to load function specific initialization
+ *
+ * Returns: Success(0) or Failure(-EIO)
+ *
+ **/
+static int
+qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter)
+{
+ u32 state, val;
+
+ if (qlcnic_83xx_lock_driver(adapter))
+ return -EIO;
+
+ /* Clear driver lock register */
+ QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, 0);
+
+ if (qlcnic_83xx_idc_update_major_version(adapter, 0)) {
+ qlcnic_83xx_unlock_driver(adapter);
+ return -EIO;
+ }
+
+ state = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
+ if (qlcnic_83xx_idc_check_dev_state_validity(adapter, state)) {
+ qlcnic_83xx_unlock_driver(adapter);
+ return -EIO;
+ }
+
+ adapter->ahw->idc.curr_state = state;
+
+ /* First to load function should cold boot the device */
+ if (state == QLC_83XX_IDC_DEV_COLD)
+ qlcnic_83xx_idc_cold_state_handler(adapter);
+
+ /* Check if reset recovery is enabled */
+ if (qlcnic_auto_fw_reset) {
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+ val = val & ~QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+ }
+
+ qlcnic_83xx_unlock_driver(adapter);
+
+ return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_init
+ *
+ * @adapter: adapter structure
+ *
+ * Initialize IDC task parameters
+ *
+ * Returns: Success(0) or Failure(-EIO)
+ *
+ **/
+int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter)
+{
+ int ret = -EIO;
+
+ qlcnic_83xx_setup_idc_parameters(adapter);
+
+ if (!qlcnic_83xx_idc_check_driver_presence_reg(adapter)) {
+ if (qlcnic_83xx_idc_first_to_load_function_handler(adapter))
+ return -EIO;
+ } else {
+ if (qlcnic_83xx_idc_check_major_version(adapter))
+ return -EIO;
+ }
+
+ if (qlcnic_83xx_get_reset_instruction_template(adapter))
+ return ret;
+
+ qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+
+ return 0;
+}
+
+void qlcnic_83xx_idc_exit(struct qlcnic_adapter *adapter)
+{
+ int id;
+ u32 val;
+
+ while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ usleep_range(10000, 11000);
+
+ id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+ id = id & 0xFF;
+
+ if (id == adapter->portnum) {
+ dev_err(&adapter->pdev->dev,
+ "%s: wait for lock recovery.. %d\n", __func__, id);
+ msleep(20);
+ id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+ id = id & 0xFF;
+ }
+
+ /* Clear driver presence bit */
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+ val = val & ~(1 << adapter->portnum);
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
+
+ clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+ cancel_delayed_work_sync(&adapter->fw_work);
+}
+
+void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key)
+{
+ u32 val;
+
+ if (qlcnic_83xx_lock_driver(adapter)) {
+ dev_err(&adapter->pdev->dev,
+ "%s:failed, please retry\n", __func__);
+ return;
+ }
+
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+ if ((val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) ||
+ !qlcnic_auto_fw_reset) {
+ dev_err(&adapter->pdev->dev,
+ "%s:failed, device in non reset mode\n", __func__);
+ qlcnic_83xx_unlock_driver(adapter);
+ return;
+ }
+
+ if (key == QLCNIC_FORCE_FW_RESET) {
+ val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+ val = val | QLC_83XX_IDC_GRACEFULL_RESET;
+ QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+ } else if (key == QLCNIC_FORCE_FW_DUMP_KEY) {
+ adapter->ahw->idc.collect_dump = 1;
+ }
+
+ qlcnic_83xx_unlock_driver(adapter);
+ return;
+}
+
+static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter)
+{
+ u8 *p_cache;
+ u32 src, count, size;
+ u64 dest;
+ int ret = -EIO;
+
+ src = QLC_83XX_BOOTLOADER_FLASH_ADDR;
+ dest = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_ADDR);
+ size = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_SIZE);
+
+ /* alignmnet check */
+ if (size & 0xF)
+ size = (size + 16) & ~0xF;
+
+ count = size/16;
+
+ p_cache = kzalloc(size, GFP_KERNEL);
+ if (p_cache == NULL) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to allocate memory for boot loader cache\n");
+ return -ENOMEM;
+ }
+
+ ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache,
+ size/sizeof(u32));
+ if (ret) {
+ kfree(p_cache);
+ return ret;
+ }
+
+ /* 16 byte write to MS memory */
+ ret = qlcnic_83xx_ms_mem_write128(adapter, dest, (u32 *)p_cache,
+ size/16);
+ if (ret) {
+ kfree(p_cache);
+ return ret;
+ }
+
+ kfree(p_cache);
+
+ return ret;
+}
+
+static int qlcnic_83xx_copy_fw_file(struct qlcnic_adapter *adapter)
+{
+ u32 dest, *p_cache;
+ u64 addr ;
+ u8 data[16] ;
+ size_t size ;
+ int i, ret = -EIO;
+
+ dest = QLCRDX(adapter->ahw, QLCNIC_FW_IMAGE_ADDR);
+
+ size = (adapter->ahw->fw_info.fw->size & ~0xF);
+ p_cache = (u32 *)adapter->ahw->fw_info.fw->data;
+ addr = (u64)dest;
+
+ ret = qlcnic_83xx_ms_mem_write128(adapter, addr,
+ (u32 *)p_cache, size/16);
+ if (ret) {
+ dev_err(&adapter->pdev->dev, "MS memory write failed\n");
+ release_firmware(adapter->ahw->fw_info.fw);
+ adapter->ahw->fw_info.fw = NULL;
+ return -EIO;
+ }
+
+ /* bit alignment check */
+ if (adapter->ahw->fw_info.fw->size & 0xF) {
+ addr = dest + size;
+ for (i = 0; i < (adapter->ahw->fw_info.fw->size & 0xF); i++)
+ data[i] = adapter->ahw->fw_info.fw->data[size + i];
+
+ for (; i < 16 ; i++)
+ data[i] = 0;
+
+ ret = qlcnic_83xx_ms_mem_write128(adapter, addr,
+ (u32 *)data, 1);
+ if (ret) {
+ dev_err(&adapter->pdev->dev,
+ "MS memory write failed\n");
+ release_firmware(adapter->ahw->fw_info.fw);
+ adapter->ahw->fw_info.fw = NULL;
+ return -EIO;
+ }
+ }
+
+ release_firmware(adapter->ahw->fw_info.fw);
+ adapter->ahw->fw_info.fw = NULL;
+
+ return 0 ;
+}
+
+int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev)
+{
+ u32 heartbeat, ret = -EIO;
+ int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
+
+ p_dev->heartbeat = QLCRD(p_dev, QLCNIC_PEG_ALIVE_COUNTER);
+
+ do {
+ msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
+ heartbeat = QLCRD(p_dev, QLCNIC_PEG_ALIVE_COUNTER);
+ if (heartbeat != p_dev->heartbeat) {
+ ret = QLCNIC_RCODE_SUCCESS;
+ break;
+ }
+ } while (--retries);
+
+ if (ret)
+ dev_err(&p_dev->pdev->dev, "firmware hang detected\n");
+
+ return ret;
+}
+
+static int qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter *p_dev)
+{
+ int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
+ u32 val;
+
+ do {
+ val = QLCRD(p_dev, QLCNIC_CMDPEG_STATE);
+ if (val == QLC_83xx_CMDPEG_COMPLETE)
+ return 0;
+
+ msleep(QLCNIC_CMDPEG_CHECK_DELAY);
+ } while (--retries);
+
+ dev_err(&p_dev->pdev->dev, "%s: failed, state = 0x%x\n", __func__, val);
+ return -EIO;
+}
+
+int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev)
+{
+ int err;
+
+ err = qlcnic_83xx_check_cmd_peg_status(p_dev);
+ if (err)
+ return err;
+
+ err = qlcnic_83xx_check_heartbeat(p_dev);
+ if (err)
+ return err;
+
+ return err;
+}
+
+static int qlcnic_83xx_poll_reg(struct qlcnic_adapter *p_dev, u32 addr,
+ int duration, u32 test_mask, u32 test_result)
+{
+ u32 value;
+ int err, timeout_error;
+ u8 retries;
+
+ value = qlcnic_83xx_rd_reg_indirect(p_dev, addr, &err);
+
+ /* poll every 1/10 of the total duration */
+ retries = duration/10;
+
+ do {
+ if ((value & test_mask) != test_result) {
+ timeout_error = 1;
+ msleep(duration/10);
+ value = qlcnic_83xx_rd_reg_indirect(p_dev, addr, &err);
+ } else {
+ timeout_error = 0;
+ break;
+ }
+ } while (retries--);
+
+ if (timeout_error) {
+ p_dev->ahw->reset.seq_error++ ;
+ dev_err(&p_dev->pdev->dev,
+ "%s: 0x%08x 0x%08x 0x%08x\n",
+ __func__, value, test_mask, test_result);
+ }
+
+ return timeout_error;
+}
+
+static int
+qlcnic_83xx_validate_reset_template_checksum(struct qlcnic_adapter *p_dev)
+{
+ u32 sum = 0;
+ u16 *buff = (u16 *)p_dev->ahw->reset.buff;
+ int count = p_dev->ahw->reset.hdr->size / sizeof(u16);
+
+ while (count-- > 0)
+ sum += *buff++;
+
+ while (sum >> 16)
+ sum = (sum & 0xFFFF) + (sum >> 16);
+
+ if (~sum) {
+ return 0;
+ } else {
+ dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
+ return -1;
+ }
+}
+
+int qlcnic_83xx_get_reset_instruction_template(struct qlcnic_adapter *p_dev)
+{
+ u8 *p_buff;
+ u32 addr, u32_count;
+
+ p_dev->ahw->reset.seq_error = 0;
+ p_dev->ahw->reset.buff =
+ kzalloc(QLC_83XX_RESTART_TEMPLATE_SIZE, GFP_KERNEL);
+
+ if (p_dev->ahw->reset.buff == NULL) {
+ dev_err(&p_dev->pdev->dev,
+ "%s: resource allocation failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ p_buff = p_dev->ahw->reset.buff;
+ addr = QLC_83XX_RESET_TEMPLATE_ADDR;
+
+ u32_count = sizeof(struct qlcnic_83xx_reset_template_hdr) / sizeof(u32);
+
+ /* Copy template header from flash */
+ if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, u32_count)) {
+ dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__);
+ return -EIO;
+ }
+
+ p_dev->ahw->reset.hdr =
+ (struct qlcnic_83xx_reset_template_hdr *) p_dev->ahw->reset.buff;
+
+ addr = QLC_83XX_RESET_TEMPLATE_ADDR + p_dev->ahw->reset.hdr->hdr_size;
+ p_buff = p_dev->ahw->reset.buff + p_dev->ahw->reset.hdr->hdr_size;
+ u32_count = (p_dev->ahw->reset.hdr->size -
+ p_dev->ahw->reset.hdr->hdr_size)/sizeof(u32);
+
+ /* Copy rest of the template */
+ if (qlcnic_83xx_flash_read32(p_dev, addr, p_buff, u32_count)) {
+ dev_err(&p_dev->pdev->dev, "%s: flash read failed\n", __func__);
+ return -EIO;
+ }
+
+ /* Integrity check */
+ if (qlcnic_83xx_validate_reset_template_checksum(p_dev))
+ return -EIO;
+
+ /* Get STOP, START, INIT sequence offsets */
+ p_dev->ahw->reset.init_offset = p_dev->ahw->reset.buff +
+ p_dev->ahw->reset.hdr->init_seq_offset;
+
+ p_dev->ahw->reset.start_offset = p_dev->ahw->reset.buff +
+ p_dev->ahw->reset.hdr->start_seq_offset;
+
+ p_dev->ahw->reset.stop_offset = p_dev->ahw->reset.buff +
+ p_dev->ahw->reset.hdr->hdr_size;
+ return 0;
+}
+
+static void qlcnic_83xx_read_write_crb_reg(struct qlcnic_adapter *p_dev,
+ u32 raddr, u32 waddr)
+{
+ int err, value;
+
+ value = qlcnic_83xx_rd_reg_indirect(p_dev, raddr, &err);
+ qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value);
+}
+
+/* Read Modify Write CRB register. */
+static void qlcnic_83xx_rmw_crb_reg(struct qlcnic_adapter *p_dev,
+ u32 raddr, u32 waddr,
+ struct qlcnic_83xx_rmw *p_rmw_hdr)
+{
+ int value, err;
+ if (p_rmw_hdr->index_a)
+ value = p_dev->ahw->reset.array[p_rmw_hdr->index_a];
+ else
+ value = qlcnic_83xx_rd_reg_indirect(p_dev, raddr, &err);
+
+ 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;
+ qlcnic_83xx_wrt_reg_indirect(p_dev, waddr, value);
+ return;
+}
+
+static void qlcnic_83xx_write_list(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ int i;
+ struct qlcnic_83xx_entry *p_entry;
+
+ p_entry = (struct qlcnic_83xx_entry *)((char *)p_hdr +
+ sizeof(struct qlcnic_83xx_reset_entry_hdr));
+
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ qlcnic_83xx_wrt_reg_indirect(p_dev, p_entry->arg1,
+ p_entry->arg2);
+ if (p_hdr->delay)
+ udelay((u32)(p_hdr->delay));
+ }
+}
+
+static void
+qlcnic_83xx_read_write_list(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ int i;
+ struct qlcnic_83xx_entry *p_entry;
+
+ p_entry = (struct qlcnic_83xx_entry *)((char *)p_hdr +
+ sizeof(struct qlcnic_83xx_reset_entry_hdr));
+
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ qlcnic_83xx_read_write_crb_reg(p_dev, p_entry->arg1,
+ p_entry->arg2);
+ if (p_hdr->delay)
+ udelay((u32)(p_hdr->delay));
+ }
+}
+
+static void
+qlcnic_83xx_poll_list(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ long delay;
+ struct qlcnic_83xx_entry *p_entry;
+ struct qlcnic_83xx_poll *p_poll;
+ int i, err;
+ unsigned long arg1, arg2;
+
+ p_poll = (struct qlcnic_83xx_poll *)
+ ((char *)p_hdr + sizeof(struct qlcnic_83xx_reset_entry_hdr));
+
+ p_entry = (struct qlcnic_83xx_entry *)((char *)p_poll +
+ sizeof(struct qlcnic_83xx_poll));
+
+ delay = (long)p_hdr->delay;
+
+ if (!delay) {
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ qlcnic_83xx_poll_reg(p_dev, p_entry->arg1,
+ delay, p_poll->test_mask,
+ p_poll->test_value);
+ }
+ } else {
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ arg1 = p_entry->arg1;
+ arg2 = p_entry->arg2;
+ if (delay) {
+ if (qlcnic_83xx_poll_reg(p_dev,
+ arg1, delay,
+ p_poll->test_mask,
+ p_poll->test_value)){
+ qlcnic_83xx_rd_reg_indirect(p_dev,
+ arg1,
+ &err);
+ qlcnic_83xx_rd_reg_indirect(p_dev,
+ arg2,
+ &err);
+
+ dev_err(&p_dev->pdev->dev,
+ "Timeout Error: poll list ");
+ dev_err(&p_dev->pdev->dev,
+ "item_num = %d entry_num = %d\n",
+ i, p_dev->ahw->reset.seq_index);
+ }
+ }
+ }
+ }
+}
+
+static void
+qlcnic_83xx_poll_write_list(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ long delay;
+ struct qlcnic_83xx_quad_entry *p_entry;
+ struct qlcnic_83xx_poll *p_poll;
+ int i;
+
+ p_poll = (struct qlcnic_83xx_poll *)((char *)p_hdr +
+ sizeof(struct qlcnic_83xx_reset_entry_hdr));
+ p_entry = (struct qlcnic_83xx_quad_entry *)((char *)p_poll +
+ sizeof(struct qlcnic_83xx_poll));
+
+ delay = (long)p_hdr->delay;
+
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ qlcnic_83xx_wrt_reg_indirect(p_dev, p_entry->dr_addr,
+ p_entry->dr_value);
+ qlcnic_83xx_wrt_reg_indirect(p_dev, p_entry->ar_addr,
+ p_entry->ar_value);
+ if (delay) {
+ if (qlcnic_83xx_poll_reg(p_dev,
+ p_entry->ar_addr, delay,
+ p_poll->test_mask,
+ p_poll->test_value)){
+ dev_err(&p_dev->pdev->dev,
+ "Timeout Error: poll list ");
+ dev_err(&p_dev->pdev->dev,
+ "item_num = %d entry_num = %d\n",
+ i, p_dev->ahw->reset.seq_index);
+ }
+ }
+ }
+}
+
+static void
+qlcnic_83xx_read_modify_write(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ struct qlcnic_83xx_entry *p_entry;
+ struct qlcnic_83xx_rmw *p_rmw_hdr;
+ int i;
+
+ p_rmw_hdr = (struct qlcnic_83xx_rmw *)((char *)p_hdr +
+ sizeof(struct qlcnic_83xx_reset_entry_hdr));
+
+ p_entry = (struct qlcnic_83xx_entry *)((char *)p_rmw_hdr +
+ sizeof(struct qlcnic_83xx_rmw));
+
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ qlcnic_83xx_rmw_crb_reg(p_dev, p_entry->arg1,
+ p_entry->arg2, p_rmw_hdr);
+ if (p_hdr->delay)
+ udelay((u32)(p_hdr->delay));
+ }
+}
+
+static void
+qlcnic_83xx_pause(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ if (p_hdr->delay)
+ mdelay((u32)((long)p_hdr->delay));
+}
+
+static void
+qlcnic_83xx_poll_read_list(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ long delay;
+ int index, i, err;
+ struct qlcnic_83xx_quad_entry *p_entry;
+ struct qlcnic_83xx_poll *p_poll;
+ unsigned long dr_addr;
+
+ p_poll = (struct qlcnic_83xx_poll *)
+ ((char *)p_hdr + sizeof(struct qlcnic_83xx_reset_entry_hdr));
+
+ p_entry = (struct qlcnic_83xx_quad_entry *)
+ ((char *)p_poll + sizeof(struct qlcnic_83xx_poll));
+
+ delay = (long)p_hdr->delay;
+
+ for (i = 0; i < p_hdr->count; i++, p_entry++) {
+ qlcnic_83xx_wrt_reg_indirect(p_dev, p_entry->ar_addr,
+ p_entry->ar_value);
+ if (delay) {
+ if (qlcnic_83xx_poll_reg(p_dev, p_entry->ar_addr, delay,
+ p_poll->test_mask, p_poll->test_value)){
+ dev_err(&p_dev->pdev->dev,
+ "Timeout Error: poll list ");
+ dev_err(&p_dev->pdev->dev,
+ "item_num = %d entry_num = %d\n", i,
+ p_dev->ahw->reset.seq_index);
+ } else {
+ index = p_dev->ahw->reset.array_index;
+ dr_addr = p_entry->dr_addr;
+ p_dev->ahw->reset.array[index++] =
+ qlcnic_83xx_rd_reg_indirect(p_dev,
+ dr_addr,
+ &err);
+ if (index == QLC_83XX_MAX_RESET_SEQ_ENTRIES)
+ p_dev->ahw->reset.array_index = 1;
+ }
+ }
+ }
+}
+
+static inline void
+qlcnic_83xx_seq_end(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ p_dev->ahw->reset.seq_end = 1;
+}
+
+static void
+qlcnic_83xx_template_end(struct qlcnic_adapter *p_dev,
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr)
+{
+ p_dev->ahw->reset.template_end = 1;
+
+ if (p_dev->ahw->reset.seq_error == 0)
+ dev_err(&p_dev->pdev->dev,
+ "HW restart process completed successfully.\n");
+ else
+ dev_err(&p_dev->pdev->dev,
+ "HW restart completed with timeout errors.\n");
+}
+
+static void qlcnic_83xx_exec_template_opcode(struct qlcnic_adapter *p_dev,
+ char *p_buff)
+{
+ int index, entries;
+ struct qlcnic_83xx_reset_entry_hdr *p_hdr;
+ char *p_entry = p_buff;
+
+ p_dev->ahw->reset.seq_end = 0;
+ p_dev->ahw->reset.template_end = 0;
+ entries = p_dev->ahw->reset.hdr->entries;
+ index = p_dev->ahw->reset.seq_index;
+
+ for ( ; (!p_dev->ahw->reset.seq_end) && (index < entries); index++) {
+
+ p_hdr = (struct qlcnic_83xx_reset_entry_hdr *)p_entry;
+
+ switch (p_hdr->cmd) {
+ case OPCODE_NOP:
+ break;
+ case OPCODE_WRITE_LIST:
+ qlcnic_83xx_write_list(p_dev, p_hdr);
+ break;
+ case OPCODE_READ_WRITE_LIST:
+ qlcnic_83xx_read_write_list(p_dev, p_hdr);
+ break;
+ case OPCODE_POLL_LIST:
+ qlcnic_83xx_poll_list(p_dev, p_hdr);
+ break;
+ case OPCODE_POLL_WRITE_LIST:
+ qlcnic_83xx_poll_write_list(p_dev, p_hdr);
+ break;
+ case OPCODE_READ_MODIFY_WRITE:
+ qlcnic_83xx_read_modify_write(p_dev, p_hdr);
+ break;
+ case OPCODE_SEQ_PAUSE:
+ qlcnic_83xx_pause(p_dev, p_hdr);
+ break;
+ case OPCODE_SEQ_END:
+ qlcnic_83xx_seq_end(p_dev, p_hdr);
+ break;
+ case OPCODE_TMPL_END:
+ qlcnic_83xx_template_end(p_dev, p_hdr);
+ break;
+ case OPCODE_POLL_READ_LIST:
+ qlcnic_83xx_poll_read_list(p_dev, p_hdr);
+ break;
+ default:
+ dev_err(&p_dev->pdev->dev,
+ "%s: Unknown opcode 0x%04x in template %d\n",
+ __func__, p_hdr->cmd, index);
+ break;
+ }
+
+ p_entry += p_hdr->size;
+ }
+
+ p_dev->ahw->reset.seq_index = index;
+}
+
+static void qlcnic_83xx_stop_hw(struct qlcnic_adapter *p_dev)
+{
+ p_dev->ahw->reset.seq_index = 0;
+ qlcnic_83xx_exec_template_opcode(p_dev, p_dev->ahw->reset.stop_offset);
+
+ if (p_dev->ahw->reset.seq_end != 1)
+ dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
+}
+
+static void qlcnic_83xx_start_hw(struct qlcnic_adapter *p_dev)
+{
+ qlcnic_83xx_exec_template_opcode(p_dev, p_dev->ahw->reset.start_offset);
+
+ if (p_dev->ahw->reset.template_end != 1)
+ dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
+}
+
+static void qlcnic_83xx_init_hw(struct qlcnic_adapter *p_dev)
+{
+ qlcnic_83xx_exec_template_opcode(p_dev, p_dev->ahw->reset.init_offset);
+
+ if (p_dev->ahw->reset.seq_end != 1)
+ dev_err(&p_dev->pdev->dev, "%s: failed\n", __func__);
+}
+
+static int qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter *adapter)
+{
+ int err = -EIO;
+
+ if (request_firmware(&adapter->ahw->fw_info.fw,
+ QLC_83XX_FW_FILE_NAME, &(adapter->pdev->dev))) {
+ dev_err(&adapter->pdev->dev,
+ "No file FW image, loading flash FW image.\n");
+ QLCWR(adapter, QLCNIC_FW_IMG_VALID,
+ QLC_83XX_BOOT_FROM_FLASH);
+ } else {
+ if (qlcnic_83xx_copy_fw_file(adapter))
+ return err;
+ QLCWR(adapter, QLCNIC_FW_IMG_VALID,
+ QLC_83XX_BOOT_FROM_FILE);
+ }
+
+ return 0;
+}
+
+int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter)
+{
+ int err = -EIO;
+
+ qlcnic_83xx_stop_hw(adapter);
+
+ qlcnic_83xx_init_hw(adapter);
+ if (qlcnic_83xx_copy_bootloader(adapter))
+ return err;
+
+ /* Boot either flash image or firmware image from host file system */
+ if (qlcnic_load_fw_file) {
+ if (qlcnic_83xx_load_fw_image_from_host(adapter))
+ return err;
+ } else {
+ QLCWR(adapter, QLCNIC_FW_IMG_VALID, QLC_83XX_BOOT_FROM_FLASH);
+ }
+
+ qlcnic_83xx_start_hw(adapter);
+ if (qlcnic_83xx_check_hw_status(adapter))
+ return -EIO;
+
+ return 0;
+}
+
+/**
+* qlcnic_83xx_config_default_opmode
+*
+* @adapter: adapter structure
+*
+* Configure default driver operating mode
+*
+* Returns: 0 or -EIO
+* */
+int qlcnic_83xx_config_default_opmode(struct qlcnic_adapter *adapter)
+{
+ u32 op_mode;
+
+ qlcnic_get_func_no(adapter);
+ op_mode = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
+
+ if (op_mode == QLC_83XX_DEFAULT_OPMODE) {
+ adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
+ adapter->ahw->idc.ready_state_entry_action =
+ qlcnic_83xx_idc_ready_state_entry_action;
+ } else {
+ return -EIO;
+ }
+
+ return 0;
+}
+
+int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_info nic_info;
+ int err;
+ struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+ memset(&nic_info, 0, sizeof(struct qlcnic_info));
+ err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
+ if (err)
+ return -EIO;
+
+ ahw->physical_port = (u8) nic_info.phys_port;
+ ahw->switch_mode = nic_info.switch_mode;
+ ahw->max_tx_ques = nic_info.max_tx_ques;
+ ahw->max_rx_ques = nic_info.max_rx_ques;
+ ahw->capabilities = nic_info.capabilities;
+ ahw->max_mac_filters = nic_info.max_mac_filters;
+ ahw->max_mtu = nic_info.max_mtu;
+
+ if (ahw->capabilities & BIT_23)
+ ahw->nic_mode = QLC_83XX_VIRTUAL_NIC_MODE;
+ else
+ ahw->nic_mode = QLC_83XX_DEFAULT_MODE;
+
+ return ahw->nic_mode;
+}
+
+static int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
+{
+ int ret;
+
+ ret = qlcnic_83xx_get_nic_configuration(adapter);
+ if (ret == -EIO)
+ return -EIO;
+
+ if (ret == QLC_83XX_VIRTUAL_NIC_MODE) {
+ return -EIO;
+ } else if (ret == QLC_83XX_DEFAULT_MODE) {
+ if (qlcnic_83xx_config_default_opmode(adapter))
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+ if (ahw->port_type == QLCNIC_XGBE) {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
+ adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
+ adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+ adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+
+ } else if (ahw->port_type == QLCNIC_GBE) {
+ adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
+ adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+ adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+ adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
+ }
+ adapter->num_txd = MAX_CMD_DESCRIPTORS;
+ adapter->max_rds_rings = MAX_RDS_RINGS;
+}
+
+static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter)
+{
+ int err = -EIO;
+
+ if (qlcnic_83xx_get_port_info(adapter))
+ return err;
+
+ qlcnic_83xx_config_buff_descriptors(adapter);
+ adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
+ adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
+
+ dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
+ adapter->ahw->fw_hal_version);
+
+ return 0;
+}
+
+/*
+ * qlcnic_83xx_clear_function_resources
+ *
+ * @adapter: adapter structure
+ *
+ * Clean up the function resources if the function was used before
+ */
+static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_cmd_args cmd;
+ u32 presence_mask, audit_mask;
+ int status;
+
+ presence_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+ audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
+
+ if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) {
+ qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_STOP_NIC_FUNC);
+ cmd.req.arg[1] = cpu_to_le32(0 | BIT_31);
+
+ status = qlcnic_issue_cmd(adapter, &cmd);
+
+ if (status) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to clean up the function resources\n");
+ }
+
+ qlcnic_free_mbx_args(&cmd);
+ }
+}
+
+/**
+ * qlcnic_83xx_init
+ *
+ * @adapter: adapter structure
+ *
+ * 83xx adapter specific initialization
+ *
+ * Returns: Success(0) or Failure(-EIO)
+ *
+ **/
+int qlcnic_83xx_init(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+ if (qlcnic_83xx_check_hw_status(adapter))
+ return -EIO;
+
+ /* Initilaize 83xx mailbox spinlock */
+ spin_lock_init(&ahw->mbx_lock);
+
+ set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+ qlcnic_83xx_clear_function_resources(adapter);
+
+ if (!qlcnic_83xx_read_flash_descriptor_table(adapter))
+ qlcnic_83xx_read_flash_mfg_id(adapter);
+
+ if (qlcnic_83xx_idc_init(adapter))
+ return -EIO;
+
+ /* Configure default, SR-IOV or Virtual NIC mode of operation */
+ if (qlcnic_83xx_configure_opmode(adapter))
+ return -EIO;
+
+ /* Perform operating mode specific initialization */
+ if (adapter->nic_ops->init_driver(adapter))
+ return -EIO;
+
+ INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
+
+ /* Register for NIC IDC AEN events */
+ qlcnic_83xx_register_nic_idc_func(adapter, 1);
+
+ /* Periodically monitor device status */
+ qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work);
+
+ return adapter->ahw->idc.err_code;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 95f5bb1..7a6c0bc 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -1514,6 +1514,7 @@ static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
adapter->ahw->fw_dump.tmpl_hdr = NULL;
}
+ kfree(adapter->ahw->reset.buff);
adapter->ahw->fw_dump.tmpl_hdr = NULL;
}
@@ -1808,6 +1809,11 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
} else if (QLCNIC_IS_83XX(adapter)) {
qlcnic_83xx_check_vf(adapter, ent);
adapter->portnum = adapter->ahw->pci_func;
+ err = qlcnic_83xx_init(adapter);
+ if (err) {
+ dev_err(&pdev->dev, "%s: failed\n", __func__);
+ goto err_out_free_hw;
+ }
} else {
dev_err(&pdev->dev,
"%s: failed. Please Reboot\n", __func__);
--
1.7.1
--
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