netxen: annotate register access functions
o remove unnecessary length parameter since register access
width is fixed 4 byte.
o remove superfluous pci_read_normalize and pci_write_normalize
functions.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 33444a2..87cda65e 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -63,6 +63,31 @@
}
#endif
+#define ADDR_IN_RANGE(addr, low, high) \
+ (((addr) < (high)) && ((addr) >= (low)))
+
+#define PCI_OFFSET_FIRST_RANGE(adapter, off) \
+ ((adapter)->ahw.pci_base0 + (off))
+#define PCI_OFFSET_SECOND_RANGE(adapter, off) \
+ ((adapter)->ahw.pci_base1 + (off) - SECOND_PAGE_GROUP_START)
+#define PCI_OFFSET_THIRD_RANGE(adapter, off) \
+ ((adapter)->ahw.pci_base2 + (off) - THIRD_PAGE_GROUP_START)
+
+static void __iomem *pci_base_offset(struct netxen_adapter *adapter,
+ unsigned long off)
+{
+ if (ADDR_IN_RANGE(off, FIRST_PAGE_GROUP_START, FIRST_PAGE_GROUP_END))
+ return PCI_OFFSET_FIRST_RANGE(adapter, off);
+
+ if (ADDR_IN_RANGE(off, SECOND_PAGE_GROUP_START, SECOND_PAGE_GROUP_END))
+ return PCI_OFFSET_SECOND_RANGE(adapter, off);
+
+ if (ADDR_IN_RANGE(off, THIRD_PAGE_GROUP_START, THIRD_PAGE_GROUP_END))
+ return PCI_OFFSET_THIRD_RANGE(adapter, off);
+
+ return NULL;
+}
+
#define CRB_WIN_LOCK_TIMEOUT 100000000
static crb_128M_2M_block_map_t crb_128M_2M_map[64] = {
{{{0, 0, 0, 0} } }, /* 0: PCI */
@@ -294,18 +319,8 @@
/* PCI Windowing for DDR regions. */
-#define ADDR_IN_RANGE(addr, low, high) \
- (((addr) <= (high)) && ((addr) >= (low)))
-
#define NETXEN_WINDOW_ONE 0x2000000 /*CRB Window: bit 25 of CRB address */
-#define NETXEN_NIC_ZERO_PAUSE_ADDR 0ULL
-#define NETXEN_NIC_UNIT_PAUSE_ADDR 0x200ULL
-#define NETXEN_NIC_EPG_PAUSE_ADDR1 0x2200010000c28001ULL
-#define NETXEN_NIC_EPG_PAUSE_ADDR2 0x0100088866554433ULL
-
-#define NETXEN_NIC_WINDOW_MARGIN 0x100000
-
int netxen_nic_set_mac(struct net_device *netdev, void *p)
{
struct netxen_adapter *adapter = netdev_priv(netdev);
@@ -346,9 +361,9 @@
if (adapter->mc_enabled)
return 0;
- adapter->hw_read_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
+ val = adapter->hw_read_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG);
val |= (1UL << (28+port));
- adapter->hw_write_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
+ adapter->hw_write_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
/* add broadcast addr to filter */
val = 0xffffff;
@@ -377,9 +392,9 @@
if (!adapter->mc_enabled)
return 0;
- adapter->hw_read_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
+ val = adapter->hw_read_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG);
val &= ~(1UL << (28+port));
- adapter->hw_write_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, &val, 4);
+ adapter->hw_write_wx(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
val = MAC_HI(addr);
netxen_crb_writelit_adapter(adapter, NETXEN_UNICAST_ADDR(port, 0), val);
@@ -848,8 +863,8 @@
crbaddr = CRB_MAC_BLOCK_START +
(4 * ((pci_func/2) * 3)) + (4 * (pci_func & 1));
- adapter->hw_read_wx(adapter, crbaddr, &mac_lo, 4);
- adapter->hw_read_wx(adapter, crbaddr+4, &mac_hi, 4);
+ mac_lo = adapter->hw_read_wx(adapter, crbaddr);
+ mac_hi = adapter->hw_read_wx(adapter, crbaddr+4);
if (pci_func & 1)
*mac = le64_to_cpu((mac_lo >> 16) | ((u64)mac_hi << 16));
@@ -867,8 +882,8 @@
while (!done) {
/* acquire semaphore3 from PCI HW block */
- adapter->hw_read_wx(adapter,
- NETXEN_PCIE_REG(PCIE_SEM7_LOCK), &done, 4);
+ done = adapter->hw_read_wx(adapter,
+ NETXEN_PCIE_REG(PCIE_SEM7_LOCK));
if (done == 1)
break;
if (timeout >= CRB_WIN_LOCK_TIMEOUT)
@@ -885,8 +900,8 @@
{
int val;
- adapter->hw_read_wx(adapter,
- NETXEN_PCIE_REG(PCIE_SEM7_UNLOCK), &val, 4);
+ val = adapter->hw_read_wx(adapter,
+ NETXEN_PCIE_REG(PCIE_SEM7_UNLOCK));
}
/*
@@ -1022,7 +1037,7 @@
dev_info(&pdev->dev, "loading firmware from flash\n");
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- adapter->pci_write_normalize(adapter,
+ adapter->hw_write_wx(adapter,
NETXEN_ROMUSB_GLB_CAS_RST, 1);
if (fw) {
@@ -1075,12 +1090,12 @@
msleep(1);
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- adapter->pci_write_normalize(adapter,
+ adapter->hw_write_wx(adapter,
NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
else {
- adapter->pci_write_normalize(adapter,
+ adapter->hw_write_wx(adapter,
NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
- adapter->pci_write_normalize(adapter,
+ adapter->hw_write_wx(adapter,
NETXEN_ROMUSB_GLB_CAS_RST, 0);
}
@@ -1168,8 +1183,8 @@
netxen_rom_fast_read(adapter,
NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
- adapter->hw_read_wx(adapter,
- NX_PEG_TUNE_CAPABILITY, &capability, 4);
+ capability = adapter->hw_read_wx(adapter,
+ NX_PEG_TUNE_CAPABILITY);
if (capability & NX_PEG_TUNE_MN_PRESENT) {
fw_type = NX_P3_MN_ROMIMAGE;
goto request_fw;
@@ -1209,13 +1224,10 @@
}
int
-netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter,
- ulong off, void *data, int len)
+netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, ulong off, u32 data)
{
void __iomem *addr;
- BUG_ON(len != 4);
-
if (ADDR_IN_WINDOW1(off)) {
addr = NETXEN_CRB_NORMALIZE(adapter, off);
} else { /* Window 0 */
@@ -1228,7 +1240,7 @@
return 1;
}
- writel(*(u32 *) data, addr);
+ writel(data, addr);
if (!ADDR_IN_WINDOW1(off))
netxen_nic_pci_change_crbwindow_128M(adapter, 1);
@@ -1236,13 +1248,11 @@
return 0;
}
-int
-netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter,
- ulong off, void *data, int len)
+u32
+netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter, ulong off)
{
void __iomem *addr;
-
- BUG_ON(len != 4);
+ u32 data;
if (ADDR_IN_WINDOW1(off)) { /* Window 1 */
addr = NETXEN_CRB_NORMALIZE(adapter, off);
@@ -1256,24 +1266,21 @@
return 1;
}
- *(u32 *)data = readl(addr);
+ data = readl(addr);
if (!ADDR_IN_WINDOW1(off))
netxen_nic_pci_change_crbwindow_128M(adapter, 1);
- return 0;
+ return data;
}
int
-netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter,
- ulong off, void *data, int len)
+netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter, ulong off, u32 data)
{
unsigned long flags = 0;
int rv;
- BUG_ON(len != 4);
-
- rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, len);
+ rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, 4);
if (rv == -1) {
printk(KERN_ERR "%s: invalid offset: 0x%016lx\n",
@@ -1286,26 +1293,24 @@
write_lock_irqsave(&adapter->adapter_lock, flags);
crb_win_lock(adapter);
netxen_nic_pci_set_crbwindow_2M(adapter, &off);
- writel(*(uint32_t *)data, (void __iomem *)off);
+ writel(data, (void __iomem *)off);
crb_win_unlock(adapter);
write_unlock_irqrestore(&adapter->adapter_lock, flags);
} else
- writel(*(uint32_t *)data, (void __iomem *)off);
+ writel(data, (void __iomem *)off);
return 0;
}
-int
-netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter,
- ulong off, void *data, int len)
+u32
+netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter, ulong off)
{
unsigned long flags = 0;
int rv;
+ u32 data;
- BUG_ON(len != 4);
-
- rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, len);
+ rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, 4);
if (rv == -1) {
printk(KERN_ERR "%s: invalid offset: 0x%016lx\n",
@@ -1318,47 +1323,45 @@
write_lock_irqsave(&adapter->adapter_lock, flags);
crb_win_lock(adapter);
netxen_nic_pci_set_crbwindow_2M(adapter, &off);
- *(uint32_t *)data = readl((void __iomem *)off);
+ data = readl((void __iomem *)off);
crb_win_unlock(adapter);
write_unlock_irqrestore(&adapter->adapter_lock, flags);
} else
- *(uint32_t *)data = readl((void __iomem *)off);
+ data = readl((void __iomem *)off);
- return 0;
+ return data;
}
void netxen_nic_reg_write(struct netxen_adapter *adapter, u64 off, u32 val)
{
- adapter->hw_write_wx(adapter, off, &val, 4);
+ adapter->hw_write_wx(adapter, off, val);
}
int netxen_nic_reg_read(struct netxen_adapter *adapter, u64 off)
{
- int val;
- adapter->hw_read_wx(adapter, off, &val, 4);
- return val;
+ return adapter->hw_read_wx(adapter, off);
}
/* Change the window to 0, write and change back to window 1. */
void netxen_nic_write_w0(struct netxen_adapter *adapter, u32 index, u32 value)
{
- adapter->hw_write_wx(adapter, index, &value, 4);
+ adapter->hw_write_wx(adapter, index, value);
}
/* Change the window to 0, read and change back to window 1. */
-void netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index, u32 *value)
+u32 netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index)
{
- adapter->hw_read_wx(adapter, index, value, 4);
+ return adapter->hw_read_wx(adapter, index);
}
void netxen_nic_write_w1(struct netxen_adapter *adapter, u32 index, u32 value)
{
- adapter->hw_write_wx(adapter, index, &value, 4);
+ adapter->hw_write_wx(adapter, index, value);
}
-void netxen_nic_read_w1(struct netxen_adapter *adapter, u32 index, u32 *value)
+u32 netxen_nic_read_w1(struct netxen_adapter *adapter, u32 index)
{
- adapter->hw_read_wx(adapter, index, value, 4);
+ return adapter->hw_read_wx(adapter, index);
}
/*
@@ -1461,17 +1464,6 @@
return readl((void __iomem *)(pci_base_offset(adapter, off)));
}
-void netxen_nic_pci_write_normalize_128M(struct netxen_adapter *adapter,
- u64 off, u32 data)
-{
- writel(data, NETXEN_CRB_NORMALIZE(adapter, off));
-}
-
-u32 netxen_nic_pci_read_normalize_128M(struct netxen_adapter *adapter, u64 off)
-{
- return readl(NETXEN_CRB_NORMALIZE(adapter, off));
-}
-
unsigned long
netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter,
unsigned long long addr)
@@ -1485,10 +1477,9 @@
adapter->ahw.ddr_mn_window = window;
adapter->hw_write_wx(adapter,
adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
- &window, 4);
- adapter->hw_read_wx(adapter,
- adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
- &win_read, 4);
+ window);
+ win_read = adapter->hw_read_wx(adapter,
+ adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE);
if ((win_read << 17) != window) {
printk(KERN_INFO "Written MNwin (0x%x) != "
"Read MNwin (0x%x)\n", window, win_read);
@@ -1505,10 +1496,9 @@
adapter->ahw.ddr_mn_window = window;
adapter->hw_write_wx(adapter,
adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
- &window, 4);
- adapter->hw_read_wx(adapter,
- adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE,
- &win_read, 4);
+ window);
+ win_read = adapter->hw_read_wx(adapter,
+ adapter->ahw.mn_win_crb | NETXEN_PCI_CRBSPACE);
if ((win_read >> 7) != window) {
printk(KERN_INFO "%s: Written OCMwin (0x%x) != "
"Read OCMwin (0x%x)\n",
@@ -1523,10 +1513,9 @@
adapter->ahw.qdr_sn_window = window;
adapter->hw_write_wx(adapter,
adapter->ahw.ms_win_crb | NETXEN_PCI_CRBSPACE,
- &window, 4);
- adapter->hw_read_wx(adapter,
- adapter->ahw.ms_win_crb | NETXEN_PCI_CRBSPACE,
- &win_read, 4);
+ window);
+ win_read = adapter->hw_read_wx(adapter,
+ adapter->ahw.ms_win_crb | NETXEN_PCI_CRBSPACE);
if (win_read != window) {
printk(KERN_INFO "%s: Written MSwin (0x%x) != "
"Read MSwin (0x%x)\n",
@@ -1973,26 +1962,26 @@
for (i = 0; i < loop; i++) {
temp = off8 + (i << 3);
adapter->hw_write_wx(adapter,
- mem_crb+MIU_TEST_AGT_ADDR_LO, &temp, 4);
+ mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
adapter->hw_write_wx(adapter,
- mem_crb+MIU_TEST_AGT_ADDR_HI, &temp, 4);
+ mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
temp = word[i] & 0xffffffff;
adapter->hw_write_wx(adapter,
- mem_crb+MIU_TEST_AGT_WRDATA_LO, &temp, 4);
+ mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
temp = (word[i] >> 32) & 0xffffffff;
adapter->hw_write_wx(adapter,
- mem_crb+MIU_TEST_AGT_WRDATA_HI, &temp, 4);
+ mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
adapter->hw_write_wx(adapter,
- mem_crb+MIU_TEST_AGT_CTRL, &temp, 4);
+ mem_crb+MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
adapter->hw_write_wx(adapter,
- mem_crb+MIU_TEST_AGT_CTRL, &temp, 4);
+ mem_crb+MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
- adapter->hw_read_wx(adapter,
- mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
+ temp = adapter->hw_read_wx(adapter,
+ mem_crb + MIU_TEST_AGT_CTRL);
if ((temp & MIU_TA_CTL_BUSY) == 0)
break;
}
@@ -2050,20 +2039,20 @@
for (i = 0; i < loop; i++) {
temp = off8 + (i << 3);
adapter->hw_write_wx(adapter,
- mem_crb + MIU_TEST_AGT_ADDR_LO, &temp, 4);
+ mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
adapter->hw_write_wx(adapter,
- mem_crb + MIU_TEST_AGT_ADDR_HI, &temp, 4);
+ mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
temp = MIU_TA_CTL_ENABLE;
adapter->hw_write_wx(adapter,
- mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
+ mem_crb + MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
adapter->hw_write_wx(adapter,
- mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
+ mem_crb + MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
- adapter->hw_read_wx(adapter,
- mem_crb + MIU_TEST_AGT_CTRL, &temp, 4);
+ temp = adapter->hw_read_wx(adapter,
+ mem_crb + MIU_TEST_AGT_CTRL);
if ((temp & MIU_TA_CTL_BUSY) == 0)
break;
}
@@ -2078,8 +2067,8 @@
start = off0[i] >> 2;
end = (off0[i] + sz[i] - 1) >> 2;
for (k = start; k <= end; k++) {
- adapter->hw_read_wx(adapter,
- mem_crb + MIU_TEST_AGT_RDDATA(k), &temp, 4);
+ temp = adapter->hw_read_wx(adapter,
+ mem_crb + MIU_TEST_AGT_RDDATA(k));
word[i] |= ((uint64_t)temp << (32 * k));
}
}
@@ -2122,29 +2111,14 @@
int netxen_nic_pci_write_immediate_2M(struct netxen_adapter *adapter,
u64 off, u32 data)
{
- adapter->hw_write_wx(adapter, off, &data, 4);
+ adapter->hw_write_wx(adapter, off, data);
return 0;
}
u32 netxen_nic_pci_read_immediate_2M(struct netxen_adapter *adapter, u64 off)
{
- u32 temp;
- adapter->hw_read_wx(adapter, off, &temp, 4);
- return temp;
-}
-
-void netxen_nic_pci_write_normalize_2M(struct netxen_adapter *adapter,
- u64 off, u32 data)
-{
- adapter->hw_write_wx(adapter, off, &data, 4);
-}
-
-u32 netxen_nic_pci_read_normalize_2M(struct netxen_adapter *adapter, u64 off)
-{
- u32 temp;
- adapter->hw_read_wx(adapter, off, &temp, 4);
- return temp;
+ return adapter->hw_read_wx(adapter, off);
}
int netxen_nic_get_board_info(struct netxen_adapter *adapter)
@@ -2253,7 +2227,7 @@
netxen_crb_writelit_adapter(struct netxen_adapter *adapter,
unsigned long off, int data)
{
- adapter->hw_write_wx(adapter, off, &data, 4);
+ adapter->hw_write_wx(adapter, off, data);
}
void netxen_nic_set_link_parameters(struct netxen_adapter *adapter)
@@ -2270,8 +2244,8 @@
}
if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
- adapter->hw_read_wx(adapter,
- NETXEN_PORT_MODE_ADDR, &port_mode, 4);
+ port_mode = adapter->hw_read_wx(adapter,
+ NETXEN_PORT_MODE_ADDR);
if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
adapter->link_speed = SPEED_1000;
adapter->link_duplex = DUPLEX_FULL;
@@ -2348,9 +2322,9 @@
addr += sizeof(u32);
}
- adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MAJOR, &fw_major, 4);
- adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MINOR, &fw_minor, 4);
- adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_SUB, &fw_build, 4);
+ fw_major = adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MAJOR);
+ fw_minor = adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_MINOR);
+ fw_build = adapter->hw_read_wx(adapter, NETXEN_FW_VERSION_SUB);
adapter->fw_major = fw_major;
adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
@@ -2373,8 +2347,7 @@
fw_major, fw_minor, fw_build);
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
- adapter->hw_read_wx(adapter,
- NETXEN_MIU_MN_CONTROL, &i, 4);
+ i = adapter->hw_read_wx(adapter, NETXEN_MIU_MN_CONTROL);
adapter->ahw.cut_through = (i & 0x4) ? 1 : 0;
dev_info(&pdev->dev, "firmware running in %s mode\n",
adapter->ahw.cut_through ? "cut-through" : "legacy");