typhoon: trivial endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index 2550d4c..f50cb52 100644 (file)
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -813,8 +813,7 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
        first_txd->flags = TYPHOON_TX_DESC | TYPHOON_DESC_VALID;
        first_txd->numDesc = 0;
        first_txd->len = 0;
-       first_txd->addr = (u64)((unsigned long) skb) & 0xffffffff;
-       first_txd->addrHi = (u64)((unsigned long) skb) >> 32;
+       first_txd->tx_addr = (u64)((unsigned long) skb);
        first_txd->processFlags = 0;
 
        if(skb->ip_summed == CHECKSUM_PARTIAL) {
@@ -850,8 +849,8 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
                                       PCI_DMA_TODEVICE);
                txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;
                txd->len = cpu_to_le16(skb->len);
-               txd->addr = cpu_to_le32(skb_dma);
-               txd->addrHi = 0;
+               txd->frag.addr = cpu_to_le32(skb_dma);
+               txd->frag.addrHi = 0;
                first_txd->numDesc++;
        } else {
                int i, len;
@@ -861,8 +860,8 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
                                         PCI_DMA_TODEVICE);
                txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;
                txd->len = cpu_to_le16(len);
-               txd->addr = cpu_to_le32(skb_dma);
-               txd->addrHi = 0;
+               txd->frag.addr = cpu_to_le32(skb_dma);
+               txd->frag.addrHi = 0;
                first_txd->numDesc++;
 
                for(i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
@@ -880,8 +879,8 @@ typhoon_start_tx(struct sk_buff *skb, struct net_device *dev)
                                         PCI_DMA_TODEVICE);
                        txd->flags = TYPHOON_FRAG_DESC | TYPHOON_DESC_VALID;
                        txd->len = cpu_to_le16(len);
-                       txd->addr = cpu_to_le32(skb_dma);
-                       txd->addrHi = 0;
+                       txd->frag.addr = cpu_to_le32(skb_dma);
+                       txd->frag.addrHi = 0;
                        first_txd->numDesc++;
                }
        }
@@ -1358,7 +1357,7 @@ typhoon_download_firmware(struct typhoon *tp)
        u8 *image_data;
        void *dpage;
        dma_addr_t dpage_dma;
-       unsigned int csum;
+       __sum16 csum;
        u32 irqEnabled;
        u32 irqMasked;
        u32 numSections;
@@ -1450,13 +1449,13 @@ typhoon_download_firmware(struct typhoon *tp)
                         * summing. Fortunately, due to the properties of
                         * the checksum, we can do this once, at the end.
                         */
-                       csum = csum_partial_copy_nocheck(image_data, dpage,
-                                                        len, 0);
-                       csum = csum_fold(csum);
-                       csum = le16_to_cpu(csum);
+                       csum = csum_fold(csum_partial_copy_nocheck(image_data,
+                                                                 dpage, len,
+                                                                 0));
 
                        iowrite32(len, ioaddr + TYPHOON_REG_BOOT_LENGTH);
-                       iowrite32(csum, ioaddr + TYPHOON_REG_BOOT_CHECKSUM);
+                       iowrite32(le16_to_cpu((__force __le16)csum),
+                                       ioaddr + TYPHOON_REG_BOOT_CHECKSUM);
                        iowrite32(load_addr,
                                        ioaddr + TYPHOON_REG_BOOT_DEST_ADDR);
                        iowrite32(0, ioaddr + TYPHOON_REG_BOOT_DATA_HI);
@@ -1551,13 +1550,13 @@ typhoon_clean_tx(struct typhoon *tp, struct transmit_ring *txRing,
                if(type == TYPHOON_TX_DESC) {
                        /* This tx_desc describes a packet.
                         */
-                       unsigned long ptr = tx->addr | ((u64)tx->addrHi << 32);
+                       unsigned long ptr = tx->tx_addr;
                        struct sk_buff *skb = (struct sk_buff *) ptr;
                        dev_kfree_skb_irq(skb);
                } else if(type == TYPHOON_FRAG_DESC) {
                        /* This tx_desc describes a memory mapping. Free it.
                         */
-                       skb_dma = (dma_addr_t) le32_to_cpu(tx->addr);
+                       skb_dma = (dma_addr_t) le32_to_cpu(tx->frag.addr);
                        dma_len = le16_to_cpu(tx->len);
                        pci_unmap_single(tp->pdev, skb_dma, dma_len,
                                       PCI_DMA_TODEVICE);

diff --git a/drivers/net/typhoon.h b/drivers/net/typhoon.h
index a02e095..dd7022c 100644 (file)
--- a/drivers/net/typhoon.h
+++ b/drivers/net/typhoon.h
@@ -166,8 +166,13 @@ struct tx_desc {
 #define TYPHOON_DESC_VALID     0x80
        u8  numDesc;
        __le16 len;
-       u32 addr;
-       u32 addrHi;
+       union {
+               struct {
+                       __le32 addr;
+                       __le32 addrHi;
+               } frag;
+               u64 tx_addr;    /* opaque for hardware, for TX_DESC */
+       };
        __le32 processFlags;
 #define TYPHOON_TX_PF_NO_CRC           __constant_cpu_to_le32(0x00000001)
 #define TYPHOON_TX_PF_IP_CHKSUM                __constant_cpu_to_le32(0x00000002)
@@ -240,8 +245,8 @@ struct rx_desc {
        u8  flags;
        u8  numDesc;
        __le16 frameLen;
-       u32 addr;
-       u32 addrHi;
+       u32 addr;       /* opaque, comes from virtAddr */
+       u32 addrHi;     /* opaque, comes from virtAddrHi */
        __le32 rxStatus;
 #define TYPHOON_RX_ERR_INTERNAL                __constant_cpu_to_le32(0x00000000)
 #define TYPHOON_RX_ERR_FIFO_UNDERRUN   __constant_cpu_to_le32(0x00000001)