[PATCH] myri10ge: improve firmware selection

[linux-2.6-omap-h63xx.git] / drivers / net / myri10ge / myri10ge.c

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e2346e8a4d521d5d03f89f345a3a3801aa908167..b19e2034d11fc2df0ac20d974bafa2df7f837653 100644 (file)
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -2417,6 +2417,8 @@ static void myri10ge_enable_ecrc(struct myri10ge_priv *mgp)
  */
 
 #define PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE  0x0132
+#define PCI_DEVICE_ID_INTEL_E5000_PCIE23 0x25f7
+#define PCI_DEVICE_ID_INTEL_E5000_PCIE47 0x25fa
 
 static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
 {
@@ -2426,15 +2428,34 @@ static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
        mgp->fw_name = myri10ge_fw_unaligned;
 
        if (myri10ge_force_firmware == 0) {
+               int link_width, exp_cap;
+               u16 lnk;
+
+               exp_cap = pci_find_capability(mgp->pdev, PCI_CAP_ID_EXP);
+               pci_read_config_word(mgp->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
+               link_width = (lnk >> 4) & 0x3f;
+
                myri10ge_enable_ecrc(mgp);
 
-               /* Check to see if the upstream bridge is known to
-                * provide aligned completions */
-               if (bridge
-                   /* ServerWorks HT2000/HT1000 */
-                   && bridge->vendor == PCI_VENDOR_ID_SERVERWORKS
-                   && bridge->device ==
-                   PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE) {
+               /* Check to see if Link is less than 8 or if the
+                * upstream bridge is known to provide aligned
+                * completions */
+               if (link_width < 8) {
+                       dev_info(&mgp->pdev->dev, "PCIE x%d Link\n",
+                                link_width);
+                       mgp->tx.boundary = 4096;
+                       mgp->fw_name = myri10ge_fw_aligned;
+               } else if (bridge &&
+                          /* ServerWorks HT2000/HT1000 */
+                          ((bridge->vendor == PCI_VENDOR_ID_SERVERWORKS
+                            && bridge->device ==
+                            PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE)
+                           /* All Intel E5000 PCIE ports */
+                           || (bridge->vendor == PCI_VENDOR_ID_INTEL
+                               && bridge->device >=
+                               PCI_DEVICE_ID_INTEL_E5000_PCIE23
+                               && bridge->device <=
+                               PCI_DEVICE_ID_INTEL_E5000_PCIE47))) {
                        dev_info(&mgp->pdev->dev,
                                 "Assuming aligned completions (0x%x:0x%x)\n",
                                 bridge->vendor, bridge->device);