bnx2x: Manual setting for MRRS

Allows better debug capabilities if the user wants to force an MRRS value

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/net/bnx2x_init.h b/drivers/net/bnx2x_init.h
index a6c0b3abba29..961db4916f25 100644
--- a/drivers/net/bnx2x_init.h
+++ b/drivers/net/bnx2x_init.h
@@ -572,7 +572,12 @@ static void bnx2x_init_pxp(struct bnx2x *bp)
                              bp->pcie_cap + PCI_EXP_DEVCTL, &devctl);
         DP(NETIF_MSG_HW, "read 0x%x from devctl\n", devctl);
         w_order = ((devctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
-        r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12);
+        if (bp->mrrs == -1)
+                r_order = ((devctl & PCI_EXP_DEVCTL_READRQ) >> 12);
+        else {
+                DP(NETIF_MSG_HW, "force read order to %d\n", bp->mrrs);
+                r_order = bp->mrrs;
+        }
 
         if (r_order > MAX_RD_ORD) {
                 DP(NETIF_MSG_HW, "read order of %d  order adjusted to %d\n",