Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

5 files changed, 20 insertions, 16 deletions

diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index bc75ef683c9f..156460527231 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1870,6 +1870,7 @@ out:
 	}
 
 	if (disabled) {
+		dev_close(efx->net_dev);
 		EFX_ERR(efx, "has been disabled\n");
 		efx->state = STATE_DISABLED;
 	} else {
@@ -1893,8 +1894,7 @@ static void efx_reset_work(struct work_struct *data)
 	}
 
 	rtnl_lock();
-	if (efx_reset(efx, efx->reset_pending))
-		dev_close(efx->net_dev);
+	(void)efx_reset(efx, efx->reset_pending);
 	rtnl_unlock();
 }
 
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index f7df24dce38a..655b697b45b2 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1326,7 +1326,9 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
 
 	EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mdio.prtad);
 
-	falcon_probe_board(efx, board_rev);
+	rc = falcon_probe_board(efx, board_rev);
+	if (rc)
+		goto fail2;
 
 	kfree(nvconfig);
 	return 0;
diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index 5712fddd72f2..c7a933a3292e 100644
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -728,15 +728,7 @@ static const struct falcon_board_type board_types[] = {
 	},
 };
 
-static const struct falcon_board_type falcon_dummy_board = {
-	.init		= efx_port_dummy_op_int,
-	.init_phy	= efx_port_dummy_op_void,
-	.fini		= efx_port_dummy_op_void,
-	.set_id_led	= efx_port_dummy_op_set_id_led,
-	.monitor	= efx_port_dummy_op_int,
-};
-
-void falcon_probe_board(struct efx_nic *efx, u16 revision_info)
+int falcon_probe_board(struct efx_nic *efx, u16 revision_info)
 {
 	struct falcon_board *board = falcon_board(efx);
 	u8 type_id = FALCON_BOARD_TYPE(revision_info);
@@ -754,8 +746,9 @@ void falcon_probe_board(struct efx_nic *efx, u16 revision_info)
 			 (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC)
 			 ? board->type->ref_model : board->type->gen_type,
 			 'A' + board->major, board->minor);
+		return 0;
 	} else {
 		EFX_ERR(efx, "unknown board type %d\n", type_id);
-		board->type = &falcon_dummy_board;
+		return -ENODEV;
 	}
 }
diff --git a/drivers/net/sfc/nic.h b/drivers/net/sfc/nic.h
index 5825f37b51bd..bbc2c0c2f843 100644
--- a/drivers/net/sfc/nic.h
+++ b/drivers/net/sfc/nic.h
@@ -158,7 +158,7 @@ extern struct efx_nic_type siena_a0_nic_type;
  **************************************************************************
  */
 
-extern void falcon_probe_board(struct efx_nic *efx, u16 revision_info);
+extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
 
 /* TX data path */
 extern int efx_nic_probe_tx(struct efx_tx_queue *tx_queue);
diff --git a/drivers/net/sfc/siena.c b/drivers/net/sfc/siena.c
index 7bf93faff3ab..727b4228e081 100644
--- a/drivers/net/sfc/siena.c
+++ b/drivers/net/sfc/siena.c
@@ -475,8 +475,17 @@ static int siena_try_update_nic_stats(struct efx_nic *efx)
 
 static void siena_update_nic_stats(struct efx_nic *efx)
 {
-	while (siena_try_update_nic_stats(efx) == -EAGAIN)
-		cpu_relax();
+	int retry;
+
+	/* If we're unlucky enough to read statistics wduring the DMA, wait
+	 * up to 10ms for it to finish (typically takes <500us) */
+	for (retry = 0; retry < 100; ++retry) {
+		if (siena_try_update_nic_stats(efx) == 0)
+			return;
+		udelay(100);
+	}
+
+	/* Use the old values instead */
 }
 
 static void siena_start_nic_stats(struct efx_nic *efx)