diff options
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/lio_main.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/lio_main.c | 90 |
1 files changed, 63 insertions, 27 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index 5b19826a7e16..eafae3eb4fed 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -59,9 +59,9 @@ static int debug = -1; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "NETIF_MSG debug bits"); -static char fw_type[LIO_MAX_FW_TYPE_LEN] = LIO_FW_NAME_TYPE_NIC; +static char fw_type[LIO_MAX_FW_TYPE_LEN] = LIO_FW_NAME_TYPE_AUTO; module_param_string(fw_type, fw_type, sizeof(fw_type), 0444); -MODULE_PARM_DESC(fw_type, "Type of firmware to be loaded. Default \"nic\". Use \"none\" to load firmware from flash."); +MODULE_PARM_DESC(fw_type, "Type of firmware to be loaded (default is \"auto\"), which uses firmware in flash, if present, else loads \"nic\"."); static u32 console_bitmask; module_param(console_bitmask, int, 0644); @@ -1115,10 +1115,10 @@ liquidio_probe(struct pci_dev *pdev, return 0; } -static bool fw_type_is_none(void) +static bool fw_type_is_auto(void) { - return strncmp(fw_type, LIO_FW_NAME_TYPE_NONE, - sizeof(LIO_FW_NAME_TYPE_NONE)) == 0; + return strncmp(fw_type, LIO_FW_NAME_TYPE_AUTO, + sizeof(LIO_FW_NAME_TYPE_AUTO)) == 0; } /** @@ -1302,7 +1302,7 @@ static void octeon_destroy_resources(struct octeon_device *oct) * Implementation note: only soft-reset the device * if it is a CN6XXX OR the LAST CN23XX device. */ - if (fw_type_is_none()) + if (atomic_read(oct->adapter_fw_state) == FW_IS_PRELOADED) octeon_pci_flr(oct); else if (OCTEON_CN6XXX(oct) || !refcount) oct->fn_list.soft_reset(oct); @@ -1934,10 +1934,12 @@ static int load_firmware(struct octeon_device *oct) char fw_name[LIO_MAX_FW_FILENAME_LEN]; char *tmp_fw_type; - if (fw_type[0] == '\0') + if (fw_type_is_auto()) { tmp_fw_type = LIO_FW_NAME_TYPE_NIC; - else + strncpy(fw_type, tmp_fw_type, sizeof(fw_type)); + } else { tmp_fw_type = fw_type; + } sprintf(fw_name, "%s%s%s_%s%s", LIO_FW_DIR, LIO_FW_BASE_NAME, octeon_get_conf(oct)->card_name, tmp_fw_type, @@ -3303,7 +3305,7 @@ static int setup_nic_devices(struct octeon_device *octeon_dev) { struct lio *lio = NULL; struct net_device *netdev; - u8 mac[6], i, j; + u8 mac[6], i, j, *fw_ver; struct octeon_soft_command *sc; struct liquidio_if_cfg_context *ctx; struct liquidio_if_cfg_resp *resp; @@ -3414,6 +3416,22 @@ static int setup_nic_devices(struct octeon_device *octeon_dev) goto setup_nic_dev_fail; } + /* Verify f/w version (in case of 'auto' loading from flash) */ + fw_ver = octeon_dev->fw_info.liquidio_firmware_version; + if (memcmp(LIQUIDIO_BASE_VERSION, + fw_ver, + strlen(LIQUIDIO_BASE_VERSION))) { + dev_err(&octeon_dev->pci_dev->dev, + "Unmatched firmware version. Expected %s.x, got %s.\n", + LIQUIDIO_BASE_VERSION, fw_ver); + goto setup_nic_dev_fail; + } else if (atomic_read(octeon_dev->adapter_fw_state) == + FW_IS_PRELOADED) { + dev_info(&octeon_dev->pci_dev->dev, + "Using auto-loaded firmware version %s.\n", + fw_ver); + } + octeon_swap_8B_data((u64 *)(&resp->cfg_info), (sizeof(struct liquidio_if_cfg_info)) >> 3); @@ -3882,9 +3900,9 @@ octeon_recv_vf_drv_notice(struct octeon_recv_info *recv_info, void *buf) static int octeon_device_init(struct octeon_device *octeon_dev) { int j, ret; - int fw_loaded = 0; char bootcmd[] = "\n"; char *dbg_enb = NULL; + enum lio_fw_state fw_state; struct octeon_device_priv *oct_priv = (struct octeon_device_priv *)octeon_dev->priv; atomic_set(&octeon_dev->status, OCT_DEV_BEGIN_STATE); @@ -3916,24 +3934,40 @@ static int octeon_device_init(struct octeon_device *octeon_dev) octeon_dev->app_mode = CVM_DRV_INVALID_APP; - if (OCTEON_CN23XX_PF(octeon_dev)) { - if (!cn23xx_fw_loaded(octeon_dev) && !fw_type_is_none()) { - fw_loaded = 0; - /* Do a soft reset of the Octeon device. */ - if (octeon_dev->fn_list.soft_reset(octeon_dev)) - return 1; - /* things might have changed */ - if (!cn23xx_fw_loaded(octeon_dev)) - fw_loaded = 0; - else - fw_loaded = 1; - } else { - fw_loaded = 1; - } - } else if (octeon_dev->fn_list.soft_reset(octeon_dev)) { - return 1; + /* CN23XX supports preloaded firmware if the following is true: + * + * The adapter indicates that firmware is currently running AND + * 'fw_type' is 'auto'. + * + * (default state is NEEDS_TO_BE_LOADED, override it if appropriate). + */ + if (OCTEON_CN23XX_PF(octeon_dev) && + cn23xx_fw_loaded(octeon_dev) && fw_type_is_auto()) { + atomic_cmpxchg(octeon_dev->adapter_fw_state, + FW_NEEDS_TO_BE_LOADED, FW_IS_PRELOADED); } + /* If loading firmware, only first device of adapter needs to do so. */ + fw_state = atomic_cmpxchg(octeon_dev->adapter_fw_state, + FW_NEEDS_TO_BE_LOADED, + FW_IS_BEING_LOADED); + + /* Here, [local variable] 'fw_state' is set to one of: + * + * FW_IS_PRELOADED: No firmware is to be loaded (see above) + * FW_NEEDS_TO_BE_LOADED: The driver's first instance will load + * firmware to the adapter. + * FW_IS_BEING_LOADED: The driver's second instance will not load + * firmware to the adapter. + */ + + /* Prior to f/w load, perform a soft reset of the Octeon device; + * if error resetting, return w/error. + */ + if (fw_state == FW_NEEDS_TO_BE_LOADED) + if (octeon_dev->fn_list.soft_reset(octeon_dev)) + return 1; + /* Initialize the dispatch mechanism used to push packets arriving on * Octeon Output queues. */ @@ -4063,7 +4097,7 @@ static int octeon_device_init(struct octeon_device *octeon_dev) atomic_set(&octeon_dev->status, OCT_DEV_IO_QUEUES_DONE); - if ((!OCTEON_CN23XX_PF(octeon_dev)) || !fw_loaded) { + if (fw_state == FW_NEEDS_TO_BE_LOADED) { dev_dbg(&octeon_dev->pci_dev->dev, "Waiting for DDR initialization...\n"); if (!ddr_timeout) { dev_info(&octeon_dev->pci_dev->dev, @@ -4125,6 +4159,8 @@ static int octeon_device_init(struct octeon_device *octeon_dev) dev_err(&octeon_dev->pci_dev->dev, "Could not load firmware to board\n"); return 1; } + + atomic_set(octeon_dev->adapter_fw_state, FW_HAS_BEEN_LOADED); } handshake[octeon_dev->octeon_id].init_ok = 1; |