net: sxgbe: rearrange dma descriptor

This patch moves cksum_ctl to tx_rd_des23 from cksum_pktlen for correct checksum
offloading and modifies size for Tx/Rx descriptor.

Signed-off-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.c
index e896dbbd2e156514eaf1d83ed8e132fbc3d88e37..d71691be41363e185c6ce82b16c3bc8553486b64 100644 (file)
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.c
@@ -45,10 +45,10 @@ static void sxgbe_prepare_tx_desc(struct sxgbe_tx_norm_desc *p, u8 is_fd,
        p->tdes23.tx_rd_des23.first_desc = is_fd;
        p->tdes23.tx_rd_des23.buf1_size = buf1_len;
 
-       p->tdes23.tx_rd_des23.tx_pkt_len.cksum_pktlen.total_pkt_len = pkt_len;
+       p->tdes23.tx_rd_des23.tx_pkt_len.pkt_len.total_pkt_len = pkt_len;
 
        if (cksum)
-               p->tdes23.tx_rd_des23.tx_pkt_len.cksum_pktlen.cksum_ctl = cic_full;
+               p->tdes23.tx_rd_des23.cksum_ctl = cic_full;
 }
 
 /* Set VLAN control information */

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.h b/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.h
index 838cb9fb0ea979514bafc7b068cd4c09f3ee5d49..022630098aea6d8b0819cac89d48cd1054de9d16 100644 (file)
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.h
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_desc.h
@@ -39,22 +39,22 @@ struct sxgbe_tx_norm_desc {
                        u32 int_on_com:1;
                        /* TDES3 */
                        union {
-                               u32 tcp_payload_len:18;
+                               u16 tcp_payload_len;
                                struct {
                                        u32 total_pkt_len:15;
                                        u32 reserved1:1;
-                                       u32 cksum_ctl:2;
-                               } cksum_pktlen;
+                               } pkt_len;
                        } tx_pkt_len;
 
-                       u32 tse_bit:1;
-                       u32 tcp_hdr_len:4;
-                       u32 sa_insert_ctl:3;
-                       u32 crc_pad_ctl:2;
-                       u32 last_desc:1;
-                       u32 first_desc:1;
-                       u32 ctxt_bit:1;
-                       u32 own_bit:1;
+                       u16 cksum_ctl:2;
+                       u16 tse_bit:1;
+                       u16 tcp_hdr_len:4;
+                       u16 sa_insert_ctl:3;
+                       u16 crc_pad_ctl:2;
+                       u16 last_desc:1;
+                       u16 first_desc:1;
+                       u16 ctxt_bit:1;
+                       u16 own_bit:1;
                } tx_rd_des23;
 
                /* tx write back Desc 2,3 */
@@ -70,25 +70,20 @@ struct sxgbe_tx_norm_desc {
 
 struct sxgbe_rx_norm_desc {
        union {
-               u32 rdes0; /* buf1 address */
-               struct {
+               u64 rdes01; /* buf1 address */
+               union {
                        u32 out_vlan_tag:16;
                        u32 in_vlan_tag:16;
-               } wb_rx_des0;
-       } rd_wb_des0;
-
-       union {
-               u32 rdes1;      /* buf2 address or buf1[63:32] */
-               u32 rss_hash;   /* Write-back RX */
-       } rd_wb_des1;
+                       u32 rss_hash;
+               } rx_wb_des01;
+       } rdes01;
 
        union {
                /* RX Read format Desc 2,3 */
                struct{
                        /* RDES2 */
-                       u32 buf2_addr;
+                       u64 buf2_addr:62;
                        /* RDES3 */
-                       u32 buf2_hi_addr:30;
                        u32 int_on_com:1;
                        u32 own_bit:1;
                } rx_rd_des23;