tg3: Fix Read DMA workaround for 5719 A0.

[karo-tx-linux.git] / drivers / net / ethernet / broadcom / tg3.c

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 062ac333fde60be0732572f39e0a7a46335da499..8506c54ee1632298163c3db398ed175f8f518329 100644 (file)
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -298,6 +298,7 @@ static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
        {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)},
        {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)},
        {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5720)},
+       {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57762)},
        {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
        {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
        {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
@@ -879,8 +880,13 @@ static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
                if (sblk->status & SD_STATUS_LINK_CHG)
                        work_exists = 1;
        }
-       /* check for RX/TX work to do */
-       if (sblk->idx[0].tx_consumer != tnapi->tx_cons ||
+
+       /* check for TX work to do */
+       if (sblk->idx[0].tx_consumer != tnapi->tx_cons)
+               work_exists = 1;
+
+       /* check for RX work to do */
+       if (tnapi->rx_rcb_prod_idx &&
            *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
                work_exists = 1;
 
@@ -6124,6 +6130,9 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
                        return work_done;
        }
 
+       if (!tnapi->rx_rcb_prod_idx)
+               return work_done;
+
        /* run RX thread, within the bounds set by NAPI.
         * All RX "locking" is done by ensuring outside
         * code synchronizes with tg3->napi.poll()
@@ -7567,6 +7576,12 @@ static int tg3_alloc_consistent(struct tg3 *tp)
                 */
                switch (i) {
                default:
+                       if (tg3_flag(tp, ENABLE_RSS)) {
+                               tnapi->rx_rcb_prod_idx = NULL;
+                               break;
+                       }
+                       /* Fall through */
+               case 1:
                        tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
                        break;
                case 2:
@@ -8934,8 +8949,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
            GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
            tg3_flag(tp, 57765_PLUS)) {
                val = tr32(TG3_RDMA_RSRVCTRL_REG);
-               if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
-                   GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
+               if (tp->pci_chip_rev_id == CHIPREV_ID_5719_A0) {
                        val &= ~(TG3_RDMA_RSRVCTRL_TXMRGN_MASK |
                                 TG3_RDMA_RSRVCTRL_FIFO_LWM_MASK |
                                 TG3_RDMA_RSRVCTRL_FIFO_HWM_MASK);
@@ -14234,7 +14248,8 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
                }
        }
 
-       if (tg3_flag(tp, 5755_PLUS))
+       if (tg3_flag(tp, 5755_PLUS) ||
+           GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
                tg3_flag_set(tp, SHORT_DMA_BUG);
 
        if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)