qla3xxx annotations

stop the byteswap-in-place, annotate

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

2 files changed, 38 insertions, 61 deletions

diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index 00f2fddff1f2..a6aeb9d60443 100644
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -540,20 +540,12 @@ static void eeprom_readword(struct ql3_adapter *qdev,
         fm93c56a_deselect(qdev);
 }
 
-static void ql_swap_mac_addr(u8 * macAddress)
-{
-#ifdef __BIG_ENDIAN
-        u8 temp;
-        temp = macAddress[0];
-        macAddress[0] = macAddress[1];
-        macAddress[1] = temp;
-        temp = macAddress[2];
-        macAddress[2] = macAddress[3];
-        macAddress[3] = temp;
-        temp = macAddress[4];
-        macAddress[4] = macAddress[5];
-        macAddress[5] = temp;
-#endif
+static void ql_set_mac_addr(struct net_device *ndev, u16 *addr)
+{
+        __le16 *p = (__le16 *)ndev->dev_addr;
+        p[0] = cpu_to_le16(addr[0]);
+        p[1] = cpu_to_le16(addr[1]);
+        p[2] = cpu_to_le16(addr[2]);
 }
 
 static int ql_get_nvram_params(struct ql3_adapter *qdev)
@@ -590,18 +582,6 @@ static int ql_get_nvram_params(struct ql3_adapter *qdev)
                 return -1;
         }
 
-        /*
-         * We have a problem with endianness for the MAC addresses
-         * and the two 8-bit values version, and numPorts.  We
-         * have to swap them on big endian systems.
-         */
-        ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn0.macAddress);
-        ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn1.macAddress);
-        ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn2.macAddress);
-        ql_swap_mac_addr(qdev->nvram_data.funcCfg_fn3.macAddress);
-        pEEPROMData = (u16 *) & qdev->nvram_data.version;
-        *pEEPROMData = le16_to_cpu(*pEEPROMData);
-
         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
         return checksum;
 }
@@ -3035,7 +3015,7 @@ static int ql_alloc_mem_resources(struct ql3_adapter *qdev)
                     LS_64BITS(qdev->shadow_reg_phy_addr);
 
                 qdev->prsp_producer_index =
-                    (u32 *) (((u8 *) qdev->preq_consumer_index) + 8);
+                    (__le32 *) (((u8 *) qdev->preq_consumer_index) + 8);
                 qdev->rsp_producer_index_phy_addr_high =
                     qdev->req_consumer_index_phy_addr_high;
                 qdev->rsp_producer_index_phy_addr_low =
@@ -3215,7 +3195,7 @@ static int ql_adapter_initialize(struct ql3_adapter *qdev)
         ql_write_page1_reg(qdev, &hmem_regs->reqLength, NUM_REQ_Q_ENTRIES);
 
         /* Response Queue Registers */
-        *((u16 *) (qdev->prsp_producer_index)) = 0;
+        *((__le16 *) (qdev->prsp_producer_index)) = 0;
         qdev->rsp_consumer_index = 0;
         qdev->rsp_current = qdev->rsp_q_virt_addr;
 
@@ -3548,7 +3528,7 @@ static void ql_set_mac_info(struct ql3_adapter *qdev)
                        qdev->ndev->name,value);
                 break;
         }
-        qdev->numPorts = qdev->nvram_data.numPorts;
+        qdev->numPorts = qdev->nvram_data.version_and_numPorts >> 8;
 }
 
 static void ql_display_dev_info(struct net_device *ndev)
@@ -4051,12 +4031,10 @@ static int __devinit ql3xxx_probe(struct pci_dev *pdev,
         /* Validate and set parameters */
         if (qdev->mac_index) {
                 ndev->mtu = qdev->nvram_data.macCfg_port1.etherMtu_mac ;
-                memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn2.macAddress,
-                       ETH_ALEN);
+                ql_set_mac_addr(ndev, qdev->nvram_data.funcCfg_fn2.macAddress);
         } else {
                 ndev->mtu = qdev->nvram_data.macCfg_port0.etherMtu_mac ;
-                memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn0.macAddress,
-                       ETH_ALEN);
+                ql_set_mac_addr(ndev, qdev->nvram_data.funcCfg_fn0.macAddress);
         }
         memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
 
diff --git a/drivers/net/qla3xxx.h b/drivers/net/qla3xxx.h
index d0ffb30ef371..58a086fddec6 100644
--- a/drivers/net/qla3xxx.h
+++ b/drivers/net/qla3xxx.h
@@ -50,7 +50,7 @@ struct ob_mac_iocb_req {
 #define OB_3032MAC_IOCB_REQ_UC  0x01
         u8 reserved0;
 
-        __le32 transaction_id;
+        u32 transaction_id;     /* opaque for hardware */
         __le16 data_len;
         u8 ip_hdr_off;
         u8 ip_hdr_len;
@@ -86,7 +86,7 @@ struct ob_mac_iocb_rsp {
 #define OB_MAC_IOCB_RSP_I   0x01
 
         __le16 reserved0;
-        __le32 transaction_id;
+        u32 transaction_id;     /* opaque for hardware */
         __le32 reserved1;
         __le32 reserved2;
 };
@@ -953,8 +953,8 @@ struct eeprom_bios_cfg {
  */
 struct eeprom_function_cfg {
         u8 reserved[30];
-        u8 macAddress[6];
-        u8 macAddressSecondary[6];
+        u16 macAddress[3];
+        u16 macAddressSecondary[3];
 
         u16 subsysVendorId;
         u16 subsysDeviceId;
@@ -965,8 +965,7 @@ struct eeprom_function_cfg {
  */
 struct eeprom_data {
         u8 asicId[4];
-        u8 version;
-        u8 numPorts;
+        u16 version_and_numPorts; /* together to avoid endianness crap */
         u16 boardId;
 
 #define EEPROM_BOARDID_STR_SIZE   16
@@ -1056,31 +1055,31 @@ struct eeprom_data {
  */
 struct lrg_buf_q_entry {
 
-        u32 addr0_lower;
+        __le32 addr0_lower;
 #define IAL_LAST_ENTRY 0x00000001
 #define IAL_CONT_ENTRY 0x00000002
 #define IAL_FLAG_MASK  0x00000003
-        u32 addr0_upper;
-        u32 addr1_lower;
-        u32 addr1_upper;
-        u32 addr2_lower;
-        u32 addr2_upper;
-        u32 addr3_lower;
-        u32 addr3_upper;
-        u32 addr4_lower;
-        u32 addr4_upper;
-        u32 addr5_lower;
-        u32 addr5_upper;
-        u32 addr6_lower;
-        u32 addr6_upper;
-        u32 addr7_lower;
-        u32 addr7_upper;
+        __le32 addr0_upper;
+        __le32 addr1_lower;
+        __le32 addr1_upper;
+        __le32 addr2_lower;
+        __le32 addr2_upper;
+        __le32 addr3_lower;
+        __le32 addr3_upper;
+        __le32 addr4_lower;
+        __le32 addr4_upper;
+        __le32 addr5_lower;
+        __le32 addr5_upper;
+        __le32 addr6_lower;
+        __le32 addr6_upper;
+        __le32 addr7_lower;
+        __le32 addr7_upper;
 
 };
 
 struct bufq_addr_element {
-        u32 addr_low;
-        u32 addr_high;
+        __le32 addr_low;
+        __le32 addr_high;
 };
 
 #define QL_NO_RESET                     0
@@ -1116,9 +1115,9 @@ struct ql_rcv_buf_cb {
 #define MAX_OAL_CNT ((MAX_SKB_FRAGS-1)/4 + 1)
 
 struct oal_entry {
-        u32 dma_lo;
-        u32 dma_hi;
-        u32 len;
+        __le32 dma_lo;
+        __le32 dma_hi;
+        __le32 len;
 #define OAL_LAST_ENTRY   0x80000000     /* Last valid buffer in list. */
 #define OAL_CONT_ENTRY   0x40000000     /* points to an OAL. (continuation) */
 };
@@ -1223,7 +1222,7 @@ struct ql3_adapter {
         struct net_rsp_iocb *rsp_current;
         u16 rsp_consumer_index;
         u16 reserved_06;
-        volatile u32 *prsp_producer_index;
+        volatile __le32 *prsp_producer_index;
         u32 rsp_producer_index_phy_addr_high;
         u32 rsp_producer_index_phy_addr_low;