vxge: Fix starvation of receive ring controller when blasted by short packets.

[net-next-2.6.git] / drivers / net / vxge / vxge-traffic.h

diff --git a/drivers/net/vxge/vxge-traffic.h b/drivers/net/vxge/vxge-traffic.h
index 861c853e3e8486e761c07edc2370506e4b521cb5..bed65280d988b9a56dd04a7eb85d956a7a3b7049 100644 (file)
--- a/drivers/net/vxge/vxge-traffic.h
+++ b/drivers/net/vxge/vxge-traffic.h
@@ -1866,6 +1866,51 @@ struct vxge_hw_ring_rxd_info {
        u32     rth_hash_type;
        u32     rth_value;
 };
+/**
+ * enum vxge_hw_ring_tcode - Transfer codes returned by adapter
+ * @VXGE_HW_RING_T_CODE_OK: Transfer ok.
+ * @VXGE_HW_RING_T_CODE_L3_CKSUM_MISMATCH: Layer 3 checksum presentation
+ *             configuration mismatch.
+ * @VXGE_HW_RING_T_CODE_L4_CKSUM_MISMATCH: Layer 4 checksum presentation
+ *             configuration mismatch.
+ * @VXGE_HW_RING_T_CODE_L3_L4_CKSUM_MISMATCH: Layer 3 and Layer 4 checksum
+ *             presentation configuration mismatch.
+ * @VXGE_HW_RING_T_CODE_L3_PKT_ERR: Layer 3 error unparseable packet,
+ *             such as unknown IPv6 header.
+ * @VXGE_HW_RING_T_CODE_L2_FRM_ERR: Layer 2 error frame integrity
+ *             error, such as FCS or ECC).
+ * @VXGE_HW_RING_T_CODE_BUF_SIZE_ERR: Buffer size error the RxD buffer(
+ *             s) were not appropriately sized and data loss occurred.
+ * @VXGE_HW_RING_T_CODE_INT_ECC_ERR: Internal ECC error RxD corrupted.
+ * @VXGE_HW_RING_T_CODE_BENIGN_OVFLOW: Benign overflow the contents of
+ *             Segment1 exceeded the capacity of Buffer1 and the remainder
+ *             was placed in Buffer2. Segment2 now starts in Buffer3.
+ *             No data loss or errors occurred.
+ * @VXGE_HW_RING_T_CODE_ZERO_LEN_BUFF: Buffer size 0 one of the RxDs
+ *             assigned buffers has a size of 0 bytes.
+ * @VXGE_HW_RING_T_CODE_FRM_DROP: Frame dropped either due to
+ *             VPath Reset or because of a VPIN mismatch.
+ * @VXGE_HW_RING_T_CODE_UNUSED: Unused
+ * @VXGE_HW_RING_T_CODE_MULTI_ERR: Multiple errors more than one
+ *             transfer code condition occurred.
+ *
+ * Transfer codes returned by adapter.
+ */
+enum vxge_hw_ring_tcode {
+       VXGE_HW_RING_T_CODE_OK                          = 0x0,
+       VXGE_HW_RING_T_CODE_L3_CKSUM_MISMATCH           = 0x1,
+       VXGE_HW_RING_T_CODE_L4_CKSUM_MISMATCH           = 0x2,
+       VXGE_HW_RING_T_CODE_L3_L4_CKSUM_MISMATCH        = 0x3,
+       VXGE_HW_RING_T_CODE_L3_PKT_ERR                  = 0x5,
+       VXGE_HW_RING_T_CODE_L2_FRM_ERR                  = 0x6,
+       VXGE_HW_RING_T_CODE_BUF_SIZE_ERR                = 0x7,
+       VXGE_HW_RING_T_CODE_INT_ECC_ERR                 = 0x8,
+       VXGE_HW_RING_T_CODE_BENIGN_OVFLOW               = 0x9,
+       VXGE_HW_RING_T_CODE_ZERO_LEN_BUFF               = 0xA,
+       VXGE_HW_RING_T_CODE_FRM_DROP                    = 0xC,
+       VXGE_HW_RING_T_CODE_UNUSED                      = 0xE,
+       VXGE_HW_RING_T_CODE_MULTI_ERR                   = 0xF
+};
 
 /**
  * enum enum vxge_hw_ring_hash_type - RTH hash types
@@ -1910,7 +1955,7 @@ vxge_hw_ring_rxd_post_post(
        void *rxdh);
 
 enum vxge_hw_status
-vxge_hw_ring_replenish(struct __vxge_hw_ring *ring_handle, u16 min_flag);
+vxge_hw_ring_replenish(struct __vxge_hw_ring *ring_handle);
 
 void
 vxge_hw_ring_rxd_post_post_wmb(
@@ -2042,7 +2087,6 @@ void vxge_hw_fifo_txdl_free(
 
 #define VXGE_HW_RING_NEXT_BLOCK_POINTER_OFFSET (VXGE_HW_BLOCK_SIZE-8)
 #define VXGE_HW_RING_MEMBLOCK_IDX_OFFSET               (VXGE_HW_BLOCK_SIZE-16)
-#define VXGE_HW_RING_MIN_BUFF_ALLOCATION               64
 
 /*
  * struct __vxge_hw_ring_rxd_priv - Receive descriptor HW-private data.