diff options
author | Dhananjay Phadke <dhananjay@netxen.com> | 2009-04-07 22:50:44 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2009-04-08 15:58:28 -0700 |
commit | 1fbe63235893e5dce28fe91d8465dd231b0cb3d9 (patch) | |
tree | 52d88817b8e23c2784c0e2a33a538f4eab2fcb8f /drivers/net/netxen/netxen_nic_hw.c | |
parent | 71dcddbdd35487eb931aa8aab28a2df474008754 (diff) | |
download | linux-1fbe63235893e5dce28fe91d8465dd231b0cb3d9.tar.bz2 |
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>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_hw.c')
-rw-r--r-- | drivers/net/netxen/netxen_nic_hw.c | 229 |
1 files changed, 101 insertions, 128 deletions
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c index 33444a20e4f7..87cda65ef66b 100644 --- a/drivers/net/netxen/netxen_nic_hw.c +++ b/drivers/net/netxen/netxen_nic_hw.c @@ -63,6 +63,31 @@ static inline void writeq(u64 val, void __iomem *addr) } #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 @@ static unsigned crb_hub_agt[64] = /* 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 @@ netxen_nic_enable_mcast_filter(struct netxen_adapter *adapter) 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 @@ netxen_nic_disable_mcast_filter(struct netxen_adapter *adapter) 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 @@ int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, __le64 *mac) 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 @@ static int crb_win_lock(struct netxen_adapter *adapter) 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 @@ static void crb_win_unlock(struct netxen_adapter *adapter) { 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 @@ netxen_do_load_firmware(struct netxen_adapter *adapter, const char *fwname, 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 @@ netxen_do_load_firmware(struct netxen_adapter *adapter, const char *fwname, 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 @@ request_mn: 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 @@ load_fw: } 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 @@ netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, 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 @@ netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter, 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 @@ netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter, 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 @@ netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter, 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 @@ u32 netxen_nic_pci_read_immediate_128M(struct netxen_adapter *adapter, u64 off) 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 @@ netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_pci_set_window_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_pci_mem_write_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter, 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 @@ netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter, 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 @@ void 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 @@ void netxen_nic_set_link_parameters(struct netxen_adapter *adapter) } 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 @@ void netxen_nic_get_firmware_info(struct netxen_adapter *adapter) 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 @@ void netxen_nic_get_firmware_info(struct netxen_adapter *adapter) 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"); |