From: Divy Le Ray <divy@chelsio.com>
Date: Thu, 30 Jul 2009 21:23:39 +0000 (+0000)
Subject: cxgb3: fix Gen2 pci default settings
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=88e7b76ef7cf939a0cf23a1902030211b20837fe;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

cxgb3: fix Gen2 pci default settings

Modify control register settings to accommodate the bridge's max read
requset size.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index e78d341cbd60..526e144b8b74 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -3465,7 +3465,7 @@ static void config_pcie(struct adapter *adap)
 		{201, 321, 258, 450, 834, 1602}
 	};
 
-	u16 val;
+	u16 val, devid;
 	unsigned int log2_width, pldsize;
 	unsigned int fst_trn_rx, fst_trn_tx, acklat, rpllmt;
 
@@ -3473,6 +3473,17 @@ static void config_pcie(struct adapter *adap)
 			     adap->params.pci.pcie_cap_addr + PCI_EXP_DEVCTL,
 			     &val);
 	pldsize = (val & PCI_EXP_DEVCTL_PAYLOAD) >> 5;
+
+	pci_read_config_word(adap->pdev, 0x2, &devid);
+	if (devid == 0x37) {
+		pci_write_config_word(adap->pdev,
+				      adap->params.pci.pcie_cap_addr +
+				      PCI_EXP_DEVCTL,
+				      val & ~PCI_EXP_DEVCTL_READRQ &
+				      ~PCI_EXP_DEVCTL_PAYLOAD);
+		pldsize = 0;
+	}
+
 	pci_read_config_word(adap->pdev,
 			     adap->params.pci.pcie_cap_addr + PCI_EXP_LNKCTL,
 			     &val);