netdev - [PATCH net-next 1/7] tg3: Detect APE enabled devs earlier

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Message-ID: <1310585253-4817-2-git-send-email-mcarlson@broadcom.com>
Date:	Wed, 13 Jul 2011 12:27:27 -0700
From:	"Matt Carlson" <mcarlson@...adcom.com>
To:	davem@...emloft.net
cc:	netdev@...r.kernel.org, mcarlson@...adcom.com
Subject: [PATCH net-next 1/7] tg3: Detect APE enabled devs earlier

The following patch will require the driver to communicate with the APE
much sooner than before.  This patch make sure the APE registers are
memory mapped and that the ENABLE_APE bit is set before the first use.

Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
---
 drivers/net/tg3.c |   52 +++++++++++++++++++++++++++++++---------------------
 1 files changed, 31 insertions(+), 21 deletions(-)

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 8211b9a..01d3a27 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -13446,10 +13446,15 @@ static void __devinit tg3_read_fw_ver(struct tg3 *tp)
 	else
 		return;
 
-	if (!tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE) || vpd_vers)
+	if (vpd_vers)
 		goto done;
 
-	tg3_read_mgmtfw_ver(tp);
+	if (tg3_flag(tp, ENABLE_APE)) {
+		if (tg3_flag(tp, ENABLE_ASF))
+			tg3_read_dash_ver(tp);
+	} else if (tg3_flag(tp, ENABLE_ASF)) {
+		tg3_read_mgmtfw_ver(tp);
+	}
 
 done:
 	tp->fw_ver[TG3_VER_SIZE - 1] = 0;
@@ -13971,6 +13976,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
 				 PCISTATE_ALLOW_APE_PSPACE_WR;
 		pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
 				       pci_state_reg);
+
+		tg3_ape_lock_init(tp);
 	}
 
 	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
@@ -15083,6 +15090,24 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 		goto err_out_free_dev;
 	}
 
+	if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
+	    tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761E ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761SE ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5720) {
+		tg3_flag_set(tp, ENABLE_APE);
+		tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
+		if (!tp->aperegs) {
+			dev_err(&pdev->dev,
+				"Cannot map APE registers, aborting\n");
+			err = -ENOMEM;
+			goto err_out_iounmap;
+		}
+	}
+
 	tp->rx_pending = TG3_DEF_RX_RING_PENDING;
 	tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
 
@@ -15095,7 +15120,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	if (err) {
 		dev_err(&pdev->dev,
 			"Problem fetching invariants of chip, aborting\n");
-		goto err_out_iounmap;
+		goto err_out_apeunmap;
 	}
 
 	/* The EPB bridge inside 5714, 5715, and 5780 and any
@@ -15124,7 +15149,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 			if (err < 0) {
 				dev_err(&pdev->dev, "Unable to obtain 64 bit "
 					"DMA for consistent allocations\n");
-				goto err_out_iounmap;
+				goto err_out_apeunmap;
 			}
 		}
 	}
@@ -15133,7 +15158,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 		if (err) {
 			dev_err(&pdev->dev,
 				"No usable DMA configuration, aborting\n");
-			goto err_out_iounmap;
+			goto err_out_apeunmap;
 		}
 	}
 
@@ -15198,22 +15223,7 @@ static int __devinit tg3_init_one(struct pci_dev *pdev,
 	if (err) {
 		dev_err(&pdev->dev,
 			"Could not obtain valid ethernet address, aborting\n");
-		goto err_out_iounmap;
-	}
-
-	if (tg3_flag(tp, ENABLE_APE)) {
-		tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
-		if (!tp->aperegs) {
-			dev_err(&pdev->dev,
-				"Cannot map APE registers, aborting\n");
-			err = -ENOMEM;
-			goto err_out_iounmap;
-		}
-
-		tg3_ape_lock_init(tp);
-
-		if (tg3_flag(tp, ENABLE_ASF))
-			tg3_read_dash_ver(tp);
+		goto err_out_apeunmap;
 	}
 
 	/*
-- 
1.7.3.4


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