1 files changed, 101 insertions, 82 deletions

diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 1763b9a7fd8e..61ddd2c6e750 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -24,7 +24,6 @@
 #include "nic.h"
 #include "regs.h"
 #include "io.h"
-#include "mdio_10g.h"
 #include "phy.h"
 #include "workarounds.h"
 
@@ -255,7 +254,6 @@ int falcon_spi_cmd(struct efx_nic *efx, const struct efx_spi_device *spi,
 	/* Input validation */
 	if (len > FALCON_SPI_MAX_LEN)
 		return -EINVAL;
-	BUG_ON(!mutex_is_locked(&efx->spi_lock));
 
 	/* Check that previous command is not still running */
 	rc = falcon_spi_poll(efx);
@@ -719,6 +717,7 @@ static int falcon_mdio_write(struct net_device *net_dev,
 			     int prtad, int devad, u16 addr, u16 value)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
+	struct falcon_nic_data *nic_data = efx->nic_data;
 	efx_oword_t reg;
 	int rc;
 
@@ -726,7 +725,7 @@ static int falcon_mdio_write(struct net_device *net_dev,
 		   "writing MDIO %d register %d.%d with 0x%04x\n",
 		    prtad, devad, addr, value);
 
-	mutex_lock(&efx->mdio_lock);
+	mutex_lock(&nic_data->mdio_lock);
 
 	/* Check MDIO not currently being accessed */
 	rc = falcon_gmii_wait(efx);
@@ -762,7 +761,7 @@ static int falcon_mdio_write(struct net_device *net_dev,
 	}
 
 out:
-	mutex_unlock(&efx->mdio_lock);
+	mutex_unlock(&nic_data->mdio_lock);
 	return rc;
 }
 
@@ -771,10 +770,11 @@ static int falcon_mdio_read(struct net_device *net_dev,
 			    int prtad, int devad, u16 addr)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
+	struct falcon_nic_data *nic_data = efx->nic_data;
 	efx_oword_t reg;
 	int rc;
 
-	mutex_lock(&efx->mdio_lock);
+	mutex_lock(&nic_data->mdio_lock);
 
 	/* Check MDIO not currently being accessed */
 	rc = falcon_gmii_wait(efx);
@@ -813,7 +813,7 @@ static int falcon_mdio_read(struct net_device *net_dev,
 	}
 
 out:
-	mutex_unlock(&efx->mdio_lock);
+	mutex_unlock(&nic_data->mdio_lock);
 	return rc;
 }
 
@@ -841,6 +841,7 @@ static int falcon_probe_port(struct efx_nic *efx)
 	}
 
 	/* Fill out MDIO structure and loopback modes */
+	mutex_init(&nic_data->mdio_lock);
 	efx->mdio.mdio_read = falcon_mdio_read;
 	efx->mdio.mdio_write = falcon_mdio_write;
 	rc = efx->phy_op->probe(efx);
@@ -880,6 +881,41 @@ static void falcon_remove_port(struct efx_nic *efx)
 	efx_nic_free_buffer(efx, &efx->stats_buffer);
 }
 
+/* Global events are basically PHY events */
+static bool
+falcon_handle_global_event(struct efx_channel *channel, efx_qword_t *event)
+{
+	struct efx_nic *efx = channel->efx;
+	struct falcon_nic_data *nic_data = efx->nic_data;
+
+	if (EFX_QWORD_FIELD(*event, FSF_AB_GLB_EV_G_PHY0_INTR) ||
+	    EFX_QWORD_FIELD(*event, FSF_AB_GLB_EV_XG_PHY0_INTR) ||
+	    EFX_QWORD_FIELD(*event, FSF_AB_GLB_EV_XFP_PHY0_INTR))
+		/* Ignored */
+		return true;
+
+	if ((efx_nic_rev(efx) == EFX_REV_FALCON_B0) &&
+	    EFX_QWORD_FIELD(*event, FSF_BB_GLB_EV_XG_MGT_INTR)) {
+		nic_data->xmac_poll_required = true;
+		return true;
+	}
+
+	if (efx_nic_rev(efx) <= EFX_REV_FALCON_A1 ?
+	    EFX_QWORD_FIELD(*event, FSF_AA_GLB_EV_RX_RECOVERY) :
+	    EFX_QWORD_FIELD(*event, FSF_BB_GLB_EV_RX_RECOVERY)) {
+		netif_err(efx, rx_err, efx->net_dev,
+			  "channel %d seen global RX_RESET event. Resetting.\n",
+			  channel->channel);
+
+		atomic_inc(&efx->rx_reset);
+		efx_schedule_reset(efx, EFX_WORKAROUND_6555(efx) ?
+				   RESET_TYPE_RX_RECOVERY : RESET_TYPE_DISABLE);
+		return true;
+	}
+
+	return false;
+}
+
 /**************************************************************************
  *
  * Falcon test code
@@ -889,6 +925,7 @@ static void falcon_remove_port(struct efx_nic *efx)
 static int
 falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
 {
+	struct falcon_nic_data *nic_data = efx->nic_data;
 	struct falcon_nvconfig *nvconfig;
 	struct efx_spi_device *spi;
 	void *region;
@@ -896,8 +933,11 @@ falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
 	__le16 *word, *limit;
 	u32 csum;
 
-	spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom;
-	if (!spi)
+	if (efx_spi_present(&nic_data->spi_flash))
+		spi = &nic_data->spi_flash;
+	else if (efx_spi_present(&nic_data->spi_eeprom))
+		spi = &nic_data->spi_eeprom;
+	else
 		return -EINVAL;
 
 	region = kmalloc(FALCON_NVCONFIG_END, GFP_KERNEL);
@@ -905,12 +945,13 @@ falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
 		return -ENOMEM;
 	nvconfig = region + FALCON_NVCONFIG_OFFSET;
 
-	mutex_lock(&efx->spi_lock);
+	mutex_lock(&nic_data->spi_lock);
 	rc = falcon_spi_read(efx, spi, 0, FALCON_NVCONFIG_END, NULL, region);
-	mutex_unlock(&efx->spi_lock);
+	mutex_unlock(&nic_data->spi_lock);
 	if (rc) {
 		netif_err(efx, hw, efx->net_dev, "Failed to read %s\n",
-			  efx->spi_flash ? "flash" : "EEPROM");
+			  efx_spi_present(&nic_data->spi_flash) ?
+			  "flash" : "EEPROM");
 		rc = -EIO;
 		goto out;
 	}
@@ -1012,7 +1053,7 @@ static int falcon_b0_test_registers(struct efx_nic *efx)
 
 /* Resets NIC to known state.  This routine must be called in process
  * context and is allowed to sleep. */
-static int falcon_reset_hw(struct efx_nic *efx, enum reset_type method)
+static int __falcon_reset_hw(struct efx_nic *efx, enum reset_type method)
 {
 	struct falcon_nic_data *nic_data = efx->nic_data;
 	efx_oword_t glb_ctl_reg_ker;
@@ -1093,6 +1134,18 @@ fail3:
 	return rc;
 }
 
+static int falcon_reset_hw(struct efx_nic *efx, enum reset_type method)
+{
+	struct falcon_nic_data *nic_data = efx->nic_data;
+	int rc;
+
+	mutex_lock(&nic_data->spi_lock);
+	rc = __falcon_reset_hw(efx, method);
+	mutex_unlock(&nic_data->spi_lock);
+
+	return rc;
+}
+
 static void falcon_monitor(struct efx_nic *efx)
 {
 	bool link_changed;
@@ -1174,16 +1227,11 @@ static int falcon_reset_sram(struct efx_nic *efx)
 	return -ETIMEDOUT;
 }
 
-static int falcon_spi_device_init(struct efx_nic *efx,
-				  struct efx_spi_device **spi_device_ret,
+static void falcon_spi_device_init(struct efx_nic *efx,
+				  struct efx_spi_device *spi_device,
 				  unsigned int device_id, u32 device_type)
 {
-	struct efx_spi_device *spi_device;
-
 	if (device_type != 0) {
-		spi_device = kzalloc(sizeof(*spi_device), GFP_KERNEL);
-		if (!spi_device)
-			return -ENOMEM;
 		spi_device->device_id = device_id;
 		spi_device->size =
 			1 << SPI_DEV_TYPE_FIELD(device_type, SPI_DEV_TYPE_SIZE);
@@ -1200,27 +1248,15 @@ static int falcon_spi_device_init(struct efx_nic *efx,
 			1 << SPI_DEV_TYPE_FIELD(device_type,
 						SPI_DEV_TYPE_BLOCK_SIZE);
 	} else {
-		spi_device = NULL;
+		spi_device->size = 0;
 	}
-
-	kfree(*spi_device_ret);
-	*spi_device_ret = spi_device;
-	return 0;
-}
-
-static void falcon_remove_spi_devices(struct efx_nic *efx)
-{
-	kfree(efx->spi_eeprom);
-	efx->spi_eeprom = NULL;
-	kfree(efx->spi_flash);
-	efx->spi_flash = NULL;
 }
 
 /* Extract non-volatile configuration */
 static int falcon_probe_nvconfig(struct efx_nic *efx)
 {
+	struct falcon_nic_data *nic_data = efx->nic_data;
 	struct falcon_nvconfig *nvconfig;
-	int board_rev;
 	int rc;
 
 	nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
@@ -1228,55 +1264,32 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
 		return -ENOMEM;
 
 	rc = falcon_read_nvram(efx, nvconfig);
-	if (rc == -EINVAL) {
-		netif_err(efx, probe, efx->net_dev,
-			  "NVRAM is invalid therefore using defaults\n");
-		efx->phy_type = PHY_TYPE_NONE;
-		efx->mdio.prtad = MDIO_PRTAD_NONE;
-		board_rev = 0;
-		rc = 0;
-	} else if (rc) {
-		goto fail1;
-	} else {
-		struct falcon_nvconfig_board_v2 *v2 = &nvconfig->board_v2;
-		struct falcon_nvconfig_board_v3 *v3 = &nvconfig->board_v3;
-
-		efx->phy_type = v2->port0_phy_type;
-		efx->mdio.prtad = v2->port0_phy_addr;
-		board_rev = le16_to_cpu(v2->board_revision);
-
-		if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
-			rc = falcon_spi_device_init(
-				efx, &efx->spi_flash, FFE_AB_SPI_DEVICE_FLASH,
-				le32_to_cpu(v3->spi_device_type
-					    [FFE_AB_SPI_DEVICE_FLASH]));
-			if (rc)
-				goto fail2;
-			rc = falcon_spi_device_init(
-				efx, &efx->spi_eeprom, FFE_AB_SPI_DEVICE_EEPROM,
-				le32_to_cpu(v3->spi_device_type
-					    [FFE_AB_SPI_DEVICE_EEPROM]));
-			if (rc)
-				goto fail2;
-		}
+	if (rc)
+		goto out;
+
+	efx->phy_type = nvconfig->board_v2.port0_phy_type;
+	efx->mdio.prtad = nvconfig->board_v2.port0_phy_addr;
+
+	if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
+		falcon_spi_device_init(
+			efx, &nic_data->spi_flash, FFE_AB_SPI_DEVICE_FLASH,
+			le32_to_cpu(nvconfig->board_v3
+				    .spi_device_type[FFE_AB_SPI_DEVICE_FLASH]));
+		falcon_spi_device_init(
+			efx, &nic_data->spi_eeprom, FFE_AB_SPI_DEVICE_EEPROM,
+			le32_to_cpu(nvconfig->board_v3
+				    .spi_device_type[FFE_AB_SPI_DEVICE_EEPROM]));
 	}
 
 	/* Read the MAC addresses */
-	memcpy(efx->mac_address, nvconfig->mac_address[0], ETH_ALEN);
+	memcpy(efx->net_dev->perm_addr, nvconfig->mac_address[0], ETH_ALEN);
 
 	netif_dbg(efx, probe, efx->net_dev, "PHY is %d phy_id %d\n",
 		  efx->phy_type, efx->mdio.prtad);
 
-	rc = falcon_probe_board(efx, board_rev);
-	if (rc)
-		goto fail2;
-
-	kfree(nvconfig);
-	return 0;
-
- fail2:
-	falcon_remove_spi_devices(efx);
- fail1:
+	rc = falcon_probe_board(efx,
+				le16_to_cpu(nvconfig->board_v2.board_revision));
+out:
 	kfree(nvconfig);
 	return rc;
 }
@@ -1284,6 +1297,7 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
 /* Probe all SPI devices on the NIC */
 static void falcon_probe_spi_devices(struct efx_nic *efx)
 {
+	struct falcon_nic_data *nic_data = efx->nic_data;
 	efx_oword_t nic_stat, gpio_ctl, ee_vpd_cfg;
 	int boot_dev;
 
@@ -1312,12 +1326,14 @@ static void falcon_probe_spi_devices(struct efx_nic *efx)
 		efx_writeo(efx, &ee_vpd_cfg, FR_AB_EE_VPD_CFG0);
 	}
 
+	mutex_init(&nic_data->spi_lock);
+
 	if (boot_dev == FFE_AB_SPI_DEVICE_FLASH)
-		falcon_spi_device_init(efx, &efx->spi_flash,
+		falcon_spi_device_init(efx, &nic_data->spi_flash,
 				       FFE_AB_SPI_DEVICE_FLASH,
 				       default_flash_type);
 	if (boot_dev == FFE_AB_SPI_DEVICE_EEPROM)
-		falcon_spi_device_init(efx, &efx->spi_eeprom,
+		falcon_spi_device_init(efx, &nic_data->spi_eeprom,
 				       FFE_AB_SPI_DEVICE_EEPROM,
 				       large_eeprom_type);
 }
@@ -1382,7 +1398,7 @@ static int falcon_probe_nic(struct efx_nic *efx)
 	}
 
 	/* Now we can reset the NIC */
-	rc = falcon_reset_hw(efx, RESET_TYPE_ALL);
+	rc = __falcon_reset_hw(efx, RESET_TYPE_ALL);
 	if (rc) {
 		netif_err(efx, probe, efx->net_dev, "failed to reset NIC\n");
 		goto fail3;
@@ -1404,8 +1420,11 @@ static int falcon_probe_nic(struct efx_nic *efx)
 
 	/* Read in the non-volatile configuration */
 	rc = falcon_probe_nvconfig(efx);
-	if (rc)
+	if (rc) {
+		if (rc == -EINVAL)
+			netif_err(efx, probe, efx->net_dev, "NVRAM is invalid\n");
 		goto fail5;
+	}
 
 	/* Initialise I2C adapter */
 	board = falcon_board(efx);
@@ -1437,7 +1456,6 @@ static int falcon_probe_nic(struct efx_nic *efx)
 	BUG_ON(i2c_del_adapter(&board->i2c_adap));
 	memset(&board->i2c_adap, 0, sizeof(board->i2c_adap));
  fail5:
-	falcon_remove_spi_devices(efx);
 	efx_nic_free_buffer(efx, &efx->irq_status);
  fail4:
  fail3:
@@ -1591,10 +1609,9 @@ static void falcon_remove_nic(struct efx_nic *efx)
 	BUG_ON(rc);
 	memset(&board->i2c_adap, 0, sizeof(board->i2c_adap));
 
-	falcon_remove_spi_devices(efx);
 	efx_nic_free_buffer(efx, &efx->irq_status);
 
-	falcon_reset_hw(efx, RESET_TYPE_ALL);
+	__falcon_reset_hw(efx, RESET_TYPE_ALL);
 
 	/* Release the second function after the reset */
 	if (nic_data->pci_dev2) {
@@ -1705,6 +1722,7 @@ struct efx_nic_type falcon_a1_nic_type = {
 	.reset = falcon_reset_hw,
 	.probe_port = falcon_probe_port,
 	.remove_port = falcon_remove_port,
+	.handle_global_event = falcon_handle_global_event,
 	.prepare_flush = falcon_prepare_flush,
 	.update_stats = falcon_update_nic_stats,
 	.start_stats = falcon_start_nic_stats,
@@ -1745,6 +1763,7 @@ struct efx_nic_type falcon_b0_nic_type = {
 	.reset = falcon_reset_hw,
 	.probe_port = falcon_probe_port,
 	.remove_port = falcon_remove_port,
+	.handle_global_event = falcon_handle_global_event,
 	.prepare_flush = falcon_prepare_flush,
 	.update_stats = falcon_update_nic_stats,
 	.start_stats = falcon_start_nic_stats,