[BNX2]: Disable jumbo rx paging on 5709 Ax.

The chip has problem running in this mode and needs to be disabled.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 3bb69d538ef0..44734613ab37 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -4669,7 +4669,7 @@ bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size)
         bp->rx_pg_ring_size = 0;
         bp->rx_max_pg_ring = 0;
         bp->rx_max_pg_ring_idx = 0;
-        if (rx_space > PAGE_SIZE) {
+        if ((rx_space > PAGE_SIZE) && !(bp->flags & JUMBO_BROKEN_FLAG)) {
                 int pages = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;
 
                 jumbo_size = size * pages;
@@ -7031,6 +7031,8 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
                         goto err_out_unmap;
                 }
                 bp->flags |= PCIE_FLAG;
+                if (CHIP_REV(bp) == CHIP_REV_Ax)
+                        bp->flags |= JUMBO_BROKEN_FLAG;
         } else {
                 bp->pcix_cap = pci_find_capability(pdev, PCI_CAP_ID_PCIX);
                 if (bp->pcix_cap == 0) {
diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 09bd665a3b9c..c1ab30b0f87a 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -6582,6 +6582,7 @@ struct bnx2 {
 #define PCIE_FLAG                       0x00000200
 #define USING_MSIX_FLAG                 0x00000400
 #define USING_MSI_OR_MSIX_FLAG          (USING_MSI_FLAG | USING_MSIX_FLAG)
+#define JUMBO_BROKEN_FLAG               0x00000800
 
         /* Put tx producer and consumer fields in separate cache lines. */