diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/e1000e/82571.c | 105 | ||||
| -rw-r--r-- | drivers/net/e1000e/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/e1000e/defines.h | 109 | ||||
| -rw-r--r-- | drivers/net/e1000e/e1000.h | 16 | ||||
| -rw-r--r-- | drivers/net/e1000e/es2lan.c | 89 | ||||
| -rw-r--r-- | drivers/net/e1000e/ethtool.c | 97 | ||||
| -rw-r--r-- | drivers/net/e1000e/hw.h | 145 | ||||
| -rw-r--r-- | drivers/net/e1000e/ich8lan.c | 262 | ||||
| -rw-r--r-- | drivers/net/e1000e/lib.c | 213 | ||||
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 428 | ||||
| -rw-r--r-- | drivers/net/e1000e/param.c | 33 | ||||
| -rw-r--r-- | drivers/net/e1000e/phy.c | 152 |
12 files changed, 1009 insertions, 642 deletions
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c index 7fe20310eb5f..c58dc2e8de1e 100644 --- a/drivers/net/e1000e/82571.c +++ b/drivers/net/e1000e/82571.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -29,6 +29,9 @@ /* * 82571EB Gigabit Ethernet Controller * 82571EB Gigabit Ethernet Controller (Fiber) + * 82571EB Dual Port Gigabit Mezzanine Adapter + * 82571EB Quad Port Gigabit Mezzanine Adapter + * 82571PT Gigabit PT Quad Port Server ExpressModule * 82572EI Gigabit Ethernet Controller (Copper) * 82572EI Gigabit Ethernet Controller (Fiber) * 82572EI Gigabit Ethernet Controller @@ -150,7 +153,8 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw) if (((eecd >> 15) & 0x3) == 0x3) { nvm->type = e1000_nvm_flash_hw; nvm->word_size = 2048; - /* Autonomous Flash update bit must be cleared due + /* + * Autonomous Flash update bit must be cleared due * to Flash update issue. */ eecd &= ~E1000_EECD_AUPDEN; @@ -159,10 +163,11 @@ static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw) } /* Fall Through */ default: - nvm->type = e1000_nvm_eeprom_spi; + nvm->type = e1000_nvm_eeprom_spi; size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> E1000_EECD_SIZE_EX_SHIFT); - /* Added to a constant, "size" becomes the left-shift value + /* + * Added to a constant, "size" becomes the left-shift value * for setting word_size. */ size += NVM_WORD_SIZE_BASE_SHIFT; @@ -208,8 +213,7 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter) /* Set rar entry count */ mac->rar_entry_count = E1000_RAR_ENTRIES; /* Set if manageability features are enabled. */ - mac->arc_subsystem_valid = - (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0; + mac->arc_subsystem_valid = (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0; /* check for link */ switch (hw->media_type) { @@ -219,14 +223,18 @@ static s32 e1000_init_mac_params_82571(struct e1000_adapter *adapter) func->get_link_up_info = e1000e_get_speed_and_duplex_copper; break; case e1000_media_type_fiber: - func->setup_physical_interface = e1000_setup_fiber_serdes_link_82571; + func->setup_physical_interface = + e1000_setup_fiber_serdes_link_82571; func->check_for_link = e1000e_check_for_fiber_link; - func->get_link_up_info = e1000e_get_speed_and_duplex_fiber_serdes; + func->get_link_up_info = + e1000e_get_speed_and_duplex_fiber_serdes; break; case e1000_media_type_internal_serdes: - func->setup_physical_interface = e1000_setup_fiber_serdes_link_82571; + func->setup_physical_interface = + e1000_setup_fiber_serdes_link_82571; func->check_for_link = e1000e_check_for_serdes_link; - func->get_link_up_info = e1000e_get_speed_and_duplex_fiber_serdes; + func->get_link_up_info = + e1000e_get_speed_and_duplex_fiber_serdes; break; default: return -E1000_ERR_CONFIG; @@ -322,10 +330,12 @@ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw) switch (hw->mac.type) { case e1000_82571: case e1000_82572: - /* The 82571 firmware may still be configuring the PHY. + /* + * The 82571 firmware may still be configuring the PHY. * In this case, we cannot access the PHY until the * configuration is done. So we explicitly set the - * PHY ID. */ + * PHY ID. + */ phy->id = IGP01E1000_I_PHY_ID; break; case e1000_82573: @@ -479,8 +489,10 @@ static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw) if (ret_val) return ret_val; - /* If our nvm is an EEPROM, then we're done - * otherwise, commit the checksum to the flash NVM. */ + /* + * If our nvm is an EEPROM, then we're done + * otherwise, commit the checksum to the flash NVM. + */ if (hw->nvm.type != e1000_nvm_flash_hw) return ret_val; @@ -496,7 +508,8 @@ static s32 e1000_update_nvm_checksum_82571(struct e1000_hw *hw) /* Reset the firmware if using STM opcode. */ if ((er32(FLOP) & 0xFF00) == E1000_STM_OPCODE) { - /* The enabling of and the actual reset must be done + /* + * The enabling of and the actual reset must be done * in two write cycles. */ ew32(HICR, E1000_HICR_FW_RESET_ENABLE); @@ -557,8 +570,10 @@ static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset, u32 eewr = 0; s32 ret_val = 0; - /* A check for invalid values: offset too large, too many words, - * and not enough words. */ + /* + * A check for invalid values: offset too large, too many words, + * and not enough words. + */ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) || (words == 0)) { hw_dbg(hw, "nvm parameter(s) out of bounds\n"); @@ -645,30 +660,32 @@ static s32 e1000_set_d0_lplu_state_82571(struct e1000_hw *hw, bool active) } else { data &= ~IGP02E1000_PM_D0_LPLU; ret_val = e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, data); - /* LPLU and SmartSpeed are mutually exclusive. LPLU is used + /* + * LPLU and SmartSpeed are mutually exclusive. LPLU is used * during Dx states where the power conservation is most * important. During driver activity we should enable - * SmartSpeed, so performance is maintained. */ + * SmartSpeed, so performance is maintained. + */ if (phy->smart_speed == e1000_smart_speed_on) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data |= IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; } else if (phy->smart_speed == e1000_smart_speed_off) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; } @@ -693,7 +710,8 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) s32 ret_val; u16 i = 0; - /* Prevent the PCI-E bus from sticking if there is no TLP connection + /* + * Prevent the PCI-E bus from sticking if there is no TLP connection * on the last TLP read/write transaction when MAC is reset. */ ret_val = e1000e_disable_pcie_master(hw); @@ -709,8 +727,10 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) msleep(10); - /* Must acquire the MDIO ownership before MAC reset. - * Ownership defaults to firmware after a reset. */ + /* + * Must acquire the MDIO ownership before MAC reset. + * Ownership defaults to firmware after a reset. + */ if (hw->mac.type == e1000_82573) { extcnf_ctrl = er32(EXTCNF_CTRL); extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; @@ -747,7 +767,8 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) /* We don't want to continue accessing MAC registers. */ return ret_val; - /* Phy configuration from NVM just starts after EECD_AUTO_RD is set. + /* + * Phy configuration from NVM just starts after EECD_AUTO_RD is set. * Need to wait for Phy configuration completion before accessing * NVM and Phy. */ @@ -793,7 +814,8 @@ static s32 e1000_init_hw_82571(struct e1000_hw *hw) e1000e_clear_vfta(hw); /* Setup the receive address. */ - /* If, however, a locally administered address was assigned to the + /* + * If, however, a locally administered address was assigned to the * 82571, we must reserve a RAR for it to work around an issue where * resetting one port will reload the MAC on the other port. */ @@ -830,7 +852,8 @@ static s32 e1000_init_hw_82571(struct e1000_hw *hw) ew32(GCR, reg_data); } - /* Clear all of the statistics registers (clear on read). It is + /* + * Clear all of the statistics registers (clear on read). It is * important that we do this after we have tried to establish link * because the symbol error count will increment wildly if there * is no link. @@ -922,7 +945,8 @@ void e1000e_clear_vfta(struct e1000_hw *hw) if (hw->mac.type == e1000_82573) { if (hw->mng_cookie.vlan_id != 0) { - /* The VFTA is a 4096b bit-field, each identifying + /* + * The VFTA is a 4096b bit-field, each identifying * a single VLAN ID. The following operations * determine which 32b entry (i.e. offset) into the * array we want to set the VLAN ID (i.e. bit) of @@ -936,7 +960,8 @@ void e1000e_clear_vfta(struct e1000_hw *hw) } } for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { - /* If the offset we want to clear is the same offset of the + /* + * If the offset we want to clear is the same offset of the * manageability VLAN ID, then clear all bits except that of * the manageability unit. */ @@ -984,7 +1009,8 @@ static void e1000_mc_addr_list_update_82571(struct e1000_hw *hw, **/ static s32 e1000_setup_link_82571(struct e1000_hw *hw) { - /* 82573 does not have a word in the NVM to determine + /* + * 82573 does not have a word in the NVM to determine * the default flow control setting, so we explicitly * set it to full. */ @@ -1050,14 +1076,14 @@ static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw) switch (hw->mac.type) { case e1000_82571: case e1000_82572: - /* If SerDes loopback mode is entered, there is no form + /* + * If SerDes loopback mode is entered, there is no form * of reset to take the adapter out of that mode. So we * have to explicitly take the adapter out of loopback * mode. This prevents drivers from twiddling their thumbs * if another tool failed to take it out of loopback mode. */ - ew32(SCTL, - E1000_SCTL_DISABLE_SERDES_LOOPBACK); + ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); break; default: break; @@ -1124,7 +1150,8 @@ void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state) /* If workaround is activated... */ if (state) - /* Hold a copy of the LAA in RAR[14] This is done so that + /* + * Hold a copy of the LAA in RAR[14] This is done so that * between the time RAR[0] gets clobbered and the time it * gets fixed, the actual LAA is in one of the RARs and no * incoming packets directed to this port are dropped. @@ -1152,7 +1179,8 @@ static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw) if (nvm->type != e1000_nvm_flash_hw) return 0; - /* Check bit 4 of word 10h. If it is 0, firmware is done updating + /* + * Check bit 4 of word 10h. If it is 0, firmware is done updating * 10h-12h. Checksum may need to be fixed. */ ret_val = e1000_read_nvm(hw, 0x10, 1, &data); @@ -1160,7 +1188,8 @@ static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw) return ret_val; if (!(data & 0x10)) { - /* Read 0x23 and check bit 15. This bit is a 1 + /* + * Read 0x23 and check bit 15. This bit is a 1 * when the checksum has already been fixed. If * the checksum is still wrong and this bit is a * 1, we need to return bad checksum. Otherwise, diff --git a/drivers/net/e1000e/Makefile b/drivers/net/e1000e/Makefile index 650f866e7ac2..360c91369f35 100644 --- a/drivers/net/e1000e/Makefile +++ b/drivers/net/e1000e/Makefile @@ -1,7 +1,7 @@ ################################################################################ # # Intel PRO/1000 Linux driver -# Copyright(c) 1999 - 2007 Intel Corporation. +# Copyright(c) 1999 - 2008 Intel Corporation. # # This program is free software; you can redistribute it and/or modify it # under the terms and conditions of the GNU General Public License, diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h index a4f511f549f7..572cfd44397a 100644 --- a/drivers/net/e1000e/defines.h +++ b/drivers/net/e1000e/defines.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -120,10 +120,10 @@ #define E1000_MANC_ARP_EN 0x00002000 /* Enable ARP Request Filtering */ #define E1000_MANC_RCV_TCO_EN 0x00020000 /* Receive TCO Packets Enabled */ #define E1000_MANC_BLK_PHY_RST_ON_IDE 0x00040000 /* Block phy resets */ -#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000 /* Enable MAC address - * filtering */ -#define E1000_MANC_EN_MNG2HOST 0x00200000 /* Enable MNG packets to host - * memory */ +/* Enable MAC address filtering */ +#define E1000_MANC_EN_MAC_ADDR_FILTER 0x00100000 +/* Enable MNG packets to host memory */ +#define E1000_MANC_EN_MNG2HOST 0x00200000 /* Receive Control */ #define E1000_RCTL_EN 0x00000002 /* enable */ @@ -135,25 +135,26 @@ #define E1000_RCTL_LBM_MAC 0x00000040 /* MAC loopback mode */ #define E1000_RCTL_LBM_TCVR 0x000000C0 /* tcvr loopback mode */ #define E1000_RCTL_DTYP_PS 0x00000400 /* Packet Split descriptor */ -#define E1000_RCTL_RDMTS_HALF 0x00000000 /* rx desc min threshold size */ +#define E1000_RCTL_RDMTS_HALF 0x00000000 /* Rx desc min threshold size */ #define E1000_RCTL_MO_SHIFT 12 /* multicast offset shift */ #define E1000_RCTL_BAM 0x00008000 /* broadcast enable */ /* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */ -#define E1000_RCTL_SZ_2048 0x00000000 /* rx buffer size 2048 */ -#define E1000_RCTL_SZ_1024 0x00010000 /* rx buffer size 1024 */ -#define E1000_RCTL_SZ_512 0x00020000 /* rx buffer size 512 */ -#define E1000_RCTL_SZ_256 0x00030000 /* rx buffer size 256 */ +#define E1000_RCTL_SZ_2048 0x00000000 /* Rx buffer size 2048 */ +#define E1000_RCTL_SZ_1024 0x00010000 /* Rx buffer size 1024 */ +#define E1000_RCTL_SZ_512 0x00020000 /* Rx buffer size 512 */ +#define E1000_RCTL_SZ_256 0x00030000 /* Rx buffer size 256 */ /* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */ -#define E1000_RCTL_SZ_16384 0x00010000 /* rx buffer size 16384 */ -#define E1000_RCTL_SZ_8192 0x00020000 /* rx buffer size 8192 */ -#define E1000_RCTL_SZ_4096 0x00030000 /* rx buffer size 4096 */ +#define E1000_RCTL_SZ_16384 0x00010000 /* Rx buffer size 16384 */ +#define E1000_RCTL_SZ_8192 0x00020000 /* Rx buffer size 8192 */ +#define E1000_RCTL_SZ_4096 0x00030000 /* Rx buffer size 4096 */ #define E1000_RCTL_VFE 0x00040000 /* vlan filter enable */ #define E1000_RCTL_CFIEN 0x00080000 /* canonical form enable */ #define E1000_RCTL_CFI 0x00100000 /* canonical form indicator */ #define E1000_RCTL_BSEX 0x02000000 /* Buffer size extension */ #define E1000_RCTL_SECRC 0x04000000 /* Strip Ethernet CRC */ -/* Use byte values for the following shift parameters +/* + * Use byte values for the following shift parameters * Usage: * psrctl |= (((ROUNDUP(value0, 128) >> E1000_PSRCTL_BSIZE0_SHIFT) & * E1000_PSRCTL_BSIZE0_MASK) | @@ -206,7 +207,8 @@ #define E1000_CTRL_VME 0x40000000 /* IEEE VLAN mode enable */ #define E1000_CTRL_PHY_RST 0x80000000 /* PHY Reset */ -/* Bit definitions for the Management Data IO (MDIO) and Management Data +/* + * Bit definitions for the Management Data IO (MDIO) and Management Data * Clock (MDC) pins in the Device Control Register. */ @@ -279,7 +281,7 @@ #define E1000_TXD_STAT_TC 0x00000004 /* Tx Underrun */ /* Transmit Control */ -#define E1000_TCTL_EN 0x00000002 /* enable tx */ +#define E1000_TCTL_EN 0x00000002 /* enable Tx */ #define E1000_TCTL_PSP 0x00000008 /* pad short packets */ #define E1000_TCTL_CT 0x00000ff0 /* collision threshold */ #define E1000_TCTL_COLD 0x003ff000 /* collision distance */ @@ -337,8 +339,8 @@ #define E1000_KABGTXD_BGSQLBIAS 0x00050000 /* PBA constants */ -#define E1000_PBA_8K 0x0008 /* 8KB, default Rx allocation */ -#define E1000_PBA_16K 0x0010 /* 16KB, default TX allocation */ +#define E1000_PBA_8K 0x0008 /* 8KB */ +#define E1000_PBA_16K 0x0010 /* 16KB */ #define E1000_PBS_16K E1000_PBA_16K @@ -356,12 +358,13 @@ /* Interrupt Cause Read */ #define E1000_ICR_TXDW 0x00000001 /* Transmit desc written back */ #define E1000_ICR_LSC 0x00000004 /* Link Status Change */ -#define E1000_ICR_RXSEQ 0x00000008 /* rx sequence error */ -#define E1000_ICR_RXDMT0 0x00000010 /* rx desc min. threshold (0) */ -#define E1000_ICR_RXT0 0x00000080 /* rx timer intr (ring 0) */ +#define E1000_ICR_RXSEQ 0x00000008 /* Rx sequence error */ +#define E1000_ICR_RXDMT0 0x00000010 /* Rx desc min. threshold (0) */ +#define E1000_ICR_RXT0 0x00000080 /* Rx timer intr (ring 0) */ #define E1000_ICR_INT_ASSERTED 0x80000000 /* If this bit asserted, the driver should claim the interrupt */ -/* This defines the bits that are set in the Interrupt Mask +/* + * This defines the bits that are set in the Interrupt Mask * Set/Read Register. Each bit is documented below: * o RXT0 = Receiver Timer Interrupt (ring 0) * o TXDW = Transmit Descriptor Written Back @@ -379,21 +382,22 @@ /* Interrupt Mask Set */ #define E1000_IMS_TXDW E1000_ICR_TXDW /* Transmit desc written back */ #define E1000_IMS_LSC E1000_ICR_LSC /* Link Status Change */ -#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* rx sequence error */ -#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ -#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* rx timer intr */ +#define E1000_IMS_RXSEQ E1000_ICR_RXSEQ /* Rx sequence error */ +#define E1000_IMS_RXDMT0 E1000_ICR_RXDMT0 /* Rx desc min. threshold */ +#define E1000_IMS_RXT0 E1000_ICR_RXT0 /* Rx timer intr */ /* Interrupt Cause Set */ #define E1000_ICS_LSC E1000_ICR_LSC /* Link Status Change */ #define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* rx desc min. threshold */ +#define E1000_ICS_RXDMT0 E1000_ICR_RXDMT0 /* Rx desc min. threshold */ /* Transmit Descriptor Control */ #define E1000_TXDCTL_PTHRESH 0x0000003F /* TXDCTL Prefetch Threshold */ #define E1000_TXDCTL_WTHRESH 0x003F0000 /* TXDCTL Writeback Threshold */ #define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000 /* GRAN=1, WTHRESH=1 */ #define E1000_TXDCTL_MAX_TX_DESC_PREFETCH 0x0100001F /* GRAN=1, PTHRESH=31 */ -#define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Enable the counting of desc. - still to be processed. */ +/* Enable the counting of desc. still to be processed. */ +#define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Flow Control Constants */ #define FLOW_CONTROL_ADDRESS_LOW 0x00C28001 @@ -404,7 +408,8 @@ #define E1000_VLAN_FILTER_TBL_SIZE 128 /* VLAN Filter Table (4096 bits) */ /* Receive Address */ -/* Number of high/low register pairs in the RAR. The RAR (Receive Address +/* + * Number of high/low register pairs in the RAR. The RAR (Receive Address * Registers) holds the directed and multicast addresses that we monitor. * Technically, we have 16 spots. However, we reserve one of these spots * (RAR[15]) for our directed address used by controllers with @@ -533,8 +538,8 @@ #define E1000_EECD_REQ 0x00000040 /* NVM Access Request */ #define E1000_EECD_GNT 0x00000080 /* NVM Access Grant */ #define E1000_EECD_SIZE 0x00000200 /* NVM Size (0=64 word 1=256 word) */ -#define E1000_EECD_ADDR_BITS 0x00000400 /* NVM Addressing bits based on type - * (0-small, 1-large) */ +/* NVM Addressing bits based on type (0-small, 1-large) */ +#define E1000_EECD_ADDR_BITS 0x00000400 #define E1000_NVM_GRANT_ATTEMPTS 1000 /* NVM # attempts to gain grant */ #define E1000_EECD_AUTO_RD 0x00000200 /* NVM Auto Read done */ #define E1000_EECD_SIZE_EX_MASK 0x00007800 /* NVM Size */ @@ -626,7 +631,8 @@ #define MAX_PHY_MULTI_PAGE_REG 0xF /* Bit definitions for valid PHY IDs. */ -/* I = Integrated +/* + * I = Integrated * E = External */ #define M88E1000_E_PHY_ID 0x01410C50 @@ -653,37 +659,37 @@ #define M88E1000_PSCR_MDI_MANUAL_MODE 0x0000 /* MDI Crossover Mode bits 6:5 */ /* Manual MDI configuration */ #define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020 /* Manual MDIX configuration */ -#define M88E1000_PSCR_AUTO_X_1000T 0x0040 /* 1000BASE-T: Auto crossover, - * 100BASE-TX/10BASE-T: - * MDI Mode - */ -#define M88E1000_PSCR_AUTO_X_MODE 0x0060 /* Auto crossover enabled - * all speeds. - */ - /* 1=Enable Extended 10BASE-T distance - * (Lower 10BASE-T RX Threshold) - * 0=Normal 10BASE-T RX Threshold */ - /* 1=5-Bit interface in 100BASE-TX - * 0=MII interface in 100BASE-TX */ -#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */ +/* 1000BASE-T: Auto crossover, 100BASE-TX/10BASE-T: MDI Mode */ +#define M88E1000_PSCR_AUTO_X_1000T 0x0040 +/* Auto crossover enabled all speeds */ +#define M88E1000_PSCR_AUTO_X_MODE 0x0060 +/* + * 1=Enable Extended 10BASE-T distance (Lower 10BASE-T Rx Threshold) + * 0=Normal 10BASE-T Rx Threshold + */ +#define M88E1000_PSCR_ASSERT_CRS_ON_TX 0x0800 /* 1=Assert CRS on Transmit */ /* M88E1000 PHY Specific Status Register */ #define M88E1000_PSSR_REV_POLARITY 0x0002 /* 1=Polarity reversed */ #define M88E1000_PSSR_DOWNSHIFT 0x0020 /* 1=Downshifted */ #define M88E1000_PSSR_MDIX 0x0040 /* 1=MDIX; 0=MDI */ -#define M88E1000_PSSR_CABLE_LENGTH 0x0380 /* 0=<50M;1=50-80M;2=80-110M; - * 3=110-140M;4=>140M */ +/* 0=<50M; 1=50-80M; 2=80-110M; 3=110-140M; 4=>140M */ +#define M88E1000_PSSR_CABLE_LENGTH 0x0380 #define M88E1000_PSSR_SPEED 0xC000 /* Speed, bits 14:15 */ #define M88E1000_PSSR_1000MBS 0x8000 /* 10=1000Mbs */ #define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7 -/* Number of times we will attempt to autonegotiate before downshifting if we - * are the master */ +/* + * Number of times we will attempt to autonegotiate before downshifting if we + * are the master + */ #define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00 #define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X 0x0000 -/* Number of times we will attempt to autonegotiate before downshifting if we - * are the slave */ +/* + * Number of times we will attempt to autonegotiate before downshifting if we + * are the slave + */ #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK 0x0300 #define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100 #define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */ @@ -692,7 +698,8 @@ #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00 #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800 -/* Bits... +/* + * Bits... * 15-5: page * 4-0: register offset */ diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index 4bf0c6c045c0..ffba63c95f85 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -61,7 +61,7 @@ struct e1000_info; ndev_printk(KERN_NOTICE , netdev, format, ## arg) -/* TX/RX descriptor defines */ +/* Tx/Rx descriptor defines */ #define E1000_DEFAULT_TXD 256 #define E1000_MAX_TXD 4096 #define E1000_MIN_TXD 80 @@ -114,13 +114,13 @@ struct e1000_buffer { dma_addr_t dma; struct sk_buff *skb; union { - /* TX */ + /* Tx */ struct { unsigned long time_stamp; u16 length; u16 next_to_watch; }; - /* RX */ + /* Rx */ /* arrays of page information for packet split */ struct e1000_ps_page *ps_pages; }; @@ -177,7 +177,7 @@ struct e1000_adapter { u16 rx_itr; /* - * TX + * Tx */ struct e1000_ring *tx_ring /* One per active queue */ ____cacheline_aligned_in_smp; @@ -199,7 +199,7 @@ struct e1000_adapter { unsigned int total_rx_bytes; unsigned int total_rx_packets; - /* TX stats */ + /* Tx stats */ u64 tpt_old; u64 colc_old; u64 gotcl_old; @@ -211,7 +211,7 @@ struct e1000_adapter { u32 tx_dma_failed; /* - * RX + * Rx */ bool (*clean_rx) (struct e1000_adapter *adapter, int *work_done, int work_to_do) @@ -223,7 +223,7 @@ struct e1000_adapter { u32 rx_int_delay; u32 rx_abs_int_delay; - /* RX stats */ + /* Rx stats */ u64 hw_csum_err; u64 hw_csum_good; u64 rx_hdr_split; diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c index 88657adf965f..265775447538 100644 --- a/drivers/net/e1000e/es2lan.c +++ b/drivers/net/e1000e/es2lan.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -92,7 +92,8 @@ /* In-Band Control Register (Page 194, Register 18) */ #define GG82563_ICR_DIS_PADDING 0x0010 /* Disable Padding */ -/* A table for the GG82563 cable length where the range is defined +/* + * A table for the GG82563 cable length where the range is defined * with a lower bound at "index" and the upper bound at * "index + 5". */ @@ -167,12 +168,13 @@ static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw) break; } - nvm->type = e1000_nvm_eeprom_spi; + nvm->type = e1000_nvm_eeprom_spi; size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> E1000_EECD_SIZE_EX_SHIFT); - /* Added to a constant, "size" becomes the left-shift value + /* + * Added to a constant, "size" becomes the left-shift value * for setting word_size. */ size += NVM_WORD_SIZE_BASE_SHIFT; @@ -208,8 +210,7 @@ static s32 e1000_init_mac_params_80003es2lan(struct e1000_adapter *adapter) /* Set rar entry count */ mac->rar_entry_count = E1000_RAR_ENTRIES; /* Set if manageability features are enabled. */ - mac->arc_subsystem_valid = - (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0; + mac->arc_subsystem_valid = (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0; /* check for link */ switch (hw->media_type) { @@ -344,8 +345,10 @@ static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask) if (!(swfw_sync & (fwmask | swmask))) break; - /* Firmware currently using resource (fwmask) - * or other software thread using resource (swmask) */ + /* + * Firmware currently using resource (fwmask) + * or other software thread using resource (swmask) + */ e1000e_put_hw_semaphore(hw); mdelay(5); i++; @@ -407,7 +410,8 @@ static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) page_select = GG82563_PHY_PAGE_SELECT; else - /* Use Alternative Page Select register to access + /* + * Use Alternative Page Select register to access * registers 30 and 31 */ page_select = GG82563_PHY_PAGE_SELECT_ALT; @@ -417,7 +421,8 @@ static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, if (ret_val) return ret_val; - /* The "ready" bit in the MDIC register may be incorrectly set + /* + * The "ready" bit in the MDIC register may be incorrectly set * before the device has completed the "Page Select" MDI * transaction. So we wait 200us after each MDI command... */ @@ -462,7 +467,8 @@ static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) page_select = GG82563_PHY_PAGE_SELECT; else - /* Use Alternative Page Select register to access + /* + * Use Alternative Page Select register to access * registers 30 and 31 */ page_select = GG82563_PHY_PAGE_SELECT_ALT; @@ -473,7 +479,8 @@ static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, return ret_val; - /* The "ready" bit in the MDIC register may be incorrectly set + /* + * The "ready" bit in the MDIC register may be incorrectly set * before the device has completed the "Page Select" MDI * transaction. So we wait 200us after each MDI command... */ @@ -554,7 +561,8 @@ static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw) u16 phy_data; bool link; - /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI + /* + * Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI * forced whenever speed and duplex are forced. */ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); @@ -593,7 +601,8 @@ static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw) return ret_val; if (!link) { - /* We didn't get link. + /* + * We didn't get link. * Reset the DSP and cross our fingers. */ ret_val = e1000e_phy_reset_dsp(hw); @@ -612,7 +621,8 @@ static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Resetting the phy means we need to verify the TX_CLK corresponds + /* + * Resetting the phy means we need to verify the TX_CLK corresponds * to the link speed. 10Mbps -> 2.5MHz, else 25MHz. */ phy_data &= ~GG82563_MSCR_TX_CLK_MASK; @@ -621,7 +631,8 @@ static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw) else phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25; - /* In addition, we must re-enable CRS on Tx for both half and full + /* + * In addition, we must re-enable CRS on Tx for both half and full * duplex. */ phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; @@ -704,7 +715,8 @@ static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw) u32 icr; s32 ret_val; - /* Prevent the PCI-E bus from sticking if there is no TLP connection + /* + * Prevent the PCI-E bus from sticking if there is no TLP connection * on the last TLP read/write transaction when MAC is reset. */ ret_val = e1000e_disable_pcie_master(hw); @@ -808,7 +820,8 @@ static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw) reg_data &= ~0x00100000; E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data); - /* Clear all of the statistics registers (clear on read). It is + /* + * Clear all of the statistics registers (clear on read). It is * important that we do this after we have tried to establish link * because the symbol error count will increment wildly if there * is no link. @@ -881,7 +894,8 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Options: + /* + * Options: * MDI/MDI-X = 0 (default) * 0 - Auto for all speeds * 1 - MDI mode @@ -907,7 +921,8 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw) break; } - /* Options: + /* + * Options: * disable_polarity_correction = 0 (default) * Automatic Correction for Reversed Cable Polarity * 0 - Disabled @@ -928,10 +943,9 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw) return ret_val; } - /* Bypass RX and TX FIFO's */ - ret_val = e1000e_write_kmrn_reg(hw, - E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL, - E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS | + /* Bypass Rx and Tx FIFO's */ + ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL, + E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS | E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS); if (ret_val) return ret_val; @@ -953,7 +967,8 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Do not init these registers when the HW is in IAMT mode, since the + /* + * Do not init these registers when the HW is in IAMT mode, since the * firmware will have already initialized them. We only initialize * them if the HW is not in IAMT mode. */ @@ -974,7 +989,8 @@ static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw) return ret_val; } - /* Workaround: Disable padding in Kumeran interface in the MAC + /* + * Workaround: Disable padding in Kumeran interface in the MAC * and in the PHY to avoid CRC errors. */ ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data); @@ -1007,9 +1023,11 @@ static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw) ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); ew32(CTRL, ctrl); - /* Set the mac to wait the maximum time between each + /* + * Set the mac to wait the maximum time between each * iteration and increase the max iterations when - * polling the phy; this fixes erroneous timeouts at 10Mbps. */ + * polling the phy; this fixes erroneous timeouts at 10Mbps. + */ ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); if (ret_val) return ret_val; @@ -1026,9 +1044,8 @@ static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw) if (ret_val) return ret_val; reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING; - ret_val = e1000e_write_kmrn_reg(hw, - E1000_KMRNCTRLSTA_OFFSET_INB_CTRL, - reg_data); + ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_OFFSET_INB_CTRL, + reg_data); if (ret_val) return ret_val; @@ -1056,9 +1073,8 @@ static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex) u16 reg_data; reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT; - ret_val = e1000e_write_kmrn_reg(hw, - E1000_KMRNCTRLSTA_OFFSET_HD_CTRL, - reg_data); + ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_OFFSET_HD_CTRL, + reg_data); if (ret_val) return ret_val; @@ -1096,9 +1112,8 @@ static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw) u32 tipg; reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT; - ret_val = e1000e_write_kmrn_reg(hw, - E1000_KMRNCTRLSTA_OFFSET_HD_CTRL, - reg_data); + ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_OFFSET_HD_CTRL, + reg_data); if (ret_val) return ret_val; diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index f77a7427d3a0..3b94a87b5272 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -102,7 +102,7 @@ static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { "Interrupt test (offline)", "Loopback test (offline)", "Link test (on/offline)" }; -#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) +#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) static int e1000_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) @@ -226,8 +226,10 @@ static int e1000_set_settings(struct net_device *netdev, struct e1000_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; - /* When SoL/IDER sessions are active, autoneg/speed/duplex - * cannot be changed */ + /* + * When SoL/IDER sessions are active, autoneg/speed/duplex + * cannot be changed + */ if (e1000_check_reset_block(hw)) { ndev_err(netdev, "Cannot change link " "characteristics when SoL/IDER is active.\n"); @@ -558,8 +560,10 @@ static int e1000_set_eeprom(struct net_device *netdev, ret_val = e1000_write_nvm(hw, first_word, last_word - first_word + 1, eeprom_buff); - /* Update the checksum over the first part of the EEPROM if needed - * and flush shadow RAM for 82573 controllers */ + /* + * Update the checksum over the first part of the EEPROM if needed + * and flush shadow RAM for 82573 controllers + */ if ((ret_val == 0) && ((first_word <= NVM_CHECKSUM_REG) || (hw->mac.type == e1000_82573))) e1000e_update_nvm_checksum(hw); @@ -578,8 +582,10 @@ static void e1000_get_drvinfo(struct net_device *netdev, strncpy(drvinfo->driver, e1000e_driver_name, 32); strncpy(drvinfo->version, e1000e_driver_version, 32); - /* EEPROM image version # is reported as firmware version # for - * PCI-E controllers */ + /* + * EEPROM image version # is reported as firmware version # for + * PCI-E controllers + */ e1000_read_nvm(&adapter->hw, 5, 1, &eeprom_data); sprintf(firmware_version, "%d.%d-%d", (eeprom_data & 0xF000) >> 12, @@ -658,8 +664,10 @@ static int e1000_set_ringparam(struct net_device *netdev, if (err) goto err_setup_tx; - /* save the new, restore the old in order to free it, - * then restore the new back again */ + /* + * restore the old in order to free it, + * then add in the new + */ adapter->rx_ring = rx_old; adapter->tx_ring = tx_old; e1000e_free_rx_resources(adapter); @@ -758,7 +766,8 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) u32 i; u32 toggle; - /* The status register is Read Only, so a write should fail. + /* + * The status register is Read Only, so a write should fail. * Some bits that get toggled are ignored. */ switch (mac->type) { @@ -908,7 +917,8 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) mask = 1 << i; if (!shared_int) { - /* Disable the interrupt to be reported in + /* + * Disable the interrupt to be reported in * the cause register and then force the same * interrupt and see if one gets posted. If * an interrupt was posted to the bus, the @@ -925,7 +935,8 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) } } - /* Enable the interrupt to be reported in + /* + * Enable the interrupt to be reported in * the cause register and then force the same * interrupt and see if one gets posted. If * an interrupt was not posted to the bus, the @@ -942,7 +953,8 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) } if (!shared_int) { - /* Disable the other interrupts to be reported in + /* + * Disable the other interrupts to be reported in * the cause register and then force the other * interrupts and see if any get posted. If * an interrupt was posted to the bus, the @@ -1216,8 +1228,10 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) adapter->hw.phy.type == e1000_phy_m88) { ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ } else { - /* Set the ILOS bit on the fiber Nic if half duplex link is - * detected. */ + /* + * Set the ILOS bit on the fiber Nic if half duplex link is + * detected. + */ stat_reg = er32(STATUS); if ((stat_reg & E1000_STATUS_FD) == 0) ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); @@ -1225,7 +1239,8 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) ew32(CTRL, ctrl_reg); - /* Disable the receiver on the PHY so when a cable is plugged in, the + /* + * Disable the receiver on the PHY so when a cable is plugged in, the * PHY does not begin to autoneg when a cable is reconnected to the NIC. */ if (adapter->hw.phy.type == e1000_phy_m88) @@ -1244,8 +1259,10 @@ static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter) /* special requirements for 82571/82572 fiber adapters */ - /* jump through hoops to make sure link is up because serdes - * link is hardwired up */ + /* + * jump through hoops to make sure link is up because serdes + * link is hardwired up + */ ctrl |= E1000_CTRL_SLU; ew32(CTRL, ctrl); @@ -1263,8 +1280,10 @@ static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter) ew32(CTRL, ctrl); } - /* special write to serdes control register to enable SerDes analog - * loopback */ + /* + * special write to serdes control register to enable SerDes analog + * loopback + */ #define E1000_SERDES_LB_ON 0x410 ew32(SCTL, E1000_SERDES_LB_ON); msleep(10); @@ -1279,8 +1298,10 @@ static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter) u32 ctrlext = er32(CTRL_EXT); u32 ctrl = er32(CTRL); - /* save CTRL_EXT to restore later, reuse an empty variable (unused - on mac_type 80003es2lan) */ + /* + * save CTRL_EXT to restore later, reuse an empty variable (unused + * on mac_type 80003es2lan) + */ adapter->tx_fifo_head = ctrlext; /* clear the serdes mode bits, putting the device into mac loopback */ @@ -1350,8 +1371,7 @@ static void e1000_loopback_cleanup(struct e1000_adapter *adapter) if (hw->media_type == e1000_media_type_fiber || hw->media_type == e1000_media_type_internal_serdes) { /* restore CTRL_EXT, stealing space from tx_fifo_head */ - ew32(CTRL_EXT, - adapter->tx_fifo_head); + ew32(CTRL_EXT, adapter->tx_fifo_head); adapter->tx_fifo_head = 0; } /* fall through */ @@ -1414,7 +1434,8 @@ static int e1000_run_loopback_test(struct e1000_adapter *adapter) ew32(RDT, rx_ring->count - 1); - /* Calculate the loop count based on the largest descriptor ring + /* + * Calculate the loop count based on the largest descriptor ring * The idea is to wrap the largest ring a number of times using 64 * send/receive pairs during each loop */ @@ -1454,7 +1475,8 @@ static int e1000_run_loopback_test(struct e1000_adapter *adapter) l++; if (l == rx_ring->count) l = 0; - /* time + 20 msecs (200 msecs on 2.4) is more than + /* + * time + 20 msecs (200 msecs on 2.4) is more than * enough time to complete the receives, if it's * exceeded, break and error off */ @@ -1473,8 +1495,10 @@ static int e1000_run_loopback_test(struct e1000_adapter *adapter) static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) { - /* PHY loopback cannot be performed if SoL/IDER - * sessions are active */ + /* + * PHY loopback cannot be performed if SoL/IDER + * sessions are active + */ if (e1000_check_reset_block(&adapter->hw)) { ndev_err(adapter->netdev, "Cannot do PHY loopback test " "when SoL/IDER is active.\n"); @@ -1508,8 +1532,10 @@ static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) int i = 0; hw->mac.serdes_has_link = 0; - /* On some blade server designs, link establishment - * could take as long as 2-3 minutes */ + /* + * On some blade server designs, link establishment + * could take as long as 2-3 minutes + */ do { hw->mac.ops.check_for_link(hw); if (hw->mac.serdes_has_link) @@ -1562,8 +1588,10 @@ static void e1000_diag_test(struct net_device *netdev, ndev_info(netdev, "offline testing starting\n"); - /* Link test performed before hardware reset so autoneg doesn't - * interfere with test result */ + /* + * Link test performed before hardware reset so autoneg doesn't + * interfere with test result + */ if (e1000_link_test(adapter, &data[4])) eth_test->flags |= ETH_TEST_FL_FAILED; @@ -1768,8 +1796,7 @@ static void e1000_get_strings(struct net_device *netdev, u32 stringset, switch (stringset) { case ETH_SS_TEST: - memcpy(data, *e1000_gstrings_test, - sizeof(e1000_gstrings_test)); + memcpy(data, *e1000_gstrings_test, sizeof(e1000_gstrings_test)); break; case ETH_SS_STATS: for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h index 916025b30fc3..2346e2cb32d1 100644 --- a/drivers/net/e1000e/hw.h +++ b/drivers/net/e1000e/hw.h @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -66,14 +66,14 @@ enum e1e_registers { E1000_IMS = 0x000D0, /* Interrupt Mask Set - RW */ E1000_IMC = 0x000D8, /* Interrupt Mask Clear - WO */ E1000_IAM = 0x000E0, /* Interrupt Acknowledge Auto Mask */ - E1000_RCTL = 0x00100, /* RX Control - RW */ + E1000_RCTL = 0x00100, /* Rx Control - RW */ E1000_FCTTV = 0x00170, /* Flow Control Transmit Timer Value - RW */ - E1000_TXCW = 0x00178, /* TX Configuration Word - RW */ - E1000_RXCW = 0x00180, /* RX Configuration Word - RO */ - E1000_TCTL = 0x00400, /* TX Control - RW */ - E1000_TCTL_EXT = 0x00404, /* Extended TX Control - RW */ - E1000_TIPG = 0x00410, /* TX Inter-packet gap -RW */ - E1000_AIT = 0x00458, /* Adaptive Interframe Spacing Throttle - RW */ + E1000_TXCW = 0x00178, /* Tx Configuration Word - RW */ + E1000_RXCW = 0x00180, /* Rx Configuration Word - RO */ + E1000_TCTL = 0x00400, /* Tx Control - RW */ + E1000_TCTL_EXT = 0x00404, /* Extended Tx Control - RW */ + E1000_TIPG = 0x00410, /* Tx Inter-packet gap -RW */ + E1000_AIT = 0x00458, /* Adaptive Interframe Spacing Throttle -RW */ E1000_LEDCTL = 0x00E00, /* LED Control - RW */ E1000_EXTCNF_CTRL = 0x00F00, /* Extended Configuration Control */ E1000_EXTCNF_SIZE = 0x00F08, /* Extended Configuration Size */ @@ -87,12 +87,12 @@ enum e1e_registers { E1000_FCRTL = 0x02160, /* Flow Control Receive Threshold Low - RW */ E1000_FCRTH = 0x02168, /* Flow Control Receive Threshold High - RW */ E1000_PSRCTL = 0x02170, /* Packet Split Receive Control - RW */ - E1000_RDBAL = 0x02800, /* RX Descriptor Base Address Low - RW */ - E1000_RDBAH = 0x02804, /* RX Descriptor Base Address High - RW */ - E1000_RDLEN = 0x02808, /* RX Descriptor Length - RW */ - E1000_RDH = 0x02810, /* RX Descriptor Head - RW */ - E1000_RDT = 0x02818, /* RX Descriptor Tail - RW */ - E1000_RDTR = 0x02820, /* RX Delay Timer - RW */ + E1000_RDBAL = 0x02800, /* Rx Descriptor Base Address Low - RW */ + E1000_RDBAH = 0x02804, /* Rx Descriptor Base Address High - RW */ + E1000_RDLEN = 0x02808, /* Rx Descriptor Length - RW */ + E1000_RDH = 0x02810, /* Rx Descriptor Head - RW */ + E1000_RDT = 0x02818, /* Rx Descriptor Tail - RW */ + E1000_RDTR = 0x02820, /* Rx Delay Timer - RW */ E1000_RADV = 0x0282C, /* RX Interrupt Absolute Delay Timer - RW */ /* Convenience macros @@ -105,17 +105,17 @@ enum e1e_registers { */ #define E1000_RDBAL_REG(_n) (E1000_RDBAL + (_n << 8)) E1000_KABGTXD = 0x03004, /* AFE Band Gap Transmit Ref Data */ - E1000_TDBAL = 0x03800, /* TX Descriptor Base Address Low - RW */ - E1000_TDBAH = 0x03804, /* TX Descriptor Base Address High - RW */ - E1000_TDLEN = 0x03808, /* TX Descriptor Length - RW */ - E1000_TDH = 0x03810, /* TX Descriptor Head - RW */ - E1000_TDT = 0x03818, /* TX Descriptor Tail - RW */ - E1000_TIDV = 0x03820, /* TX Interrupt Delay Value - RW */ - E1000_TXDCTL = 0x03828, /* TX Descriptor Control - RW */ - E1000_TADV = 0x0382C, /* TX Interrupt Absolute Delay Val - RW */ - E1000_TARC0 = 0x03840, /* TX Arbitration Count (0) */ - E1000_TXDCTL1 = 0x03928, /* TX Descriptor Control (1) - RW */ - E1000_TARC1 = 0x03940, /* TX Arbitration Count (1) */ + E1000_TDBAL = 0x03800, /* Tx Descriptor Base Address Low - RW */ + E1000_TDBAH = 0x03804, /* Tx Descriptor Base Address High - RW */ + E1000_TDLEN = 0x03808, /* Tx Descriptor Length - RW */ + E1000_TDH = 0x03810, /* Tx Descriptor Head - RW */ + E1000_TDT = 0x03818, /* Tx Descriptor Tail - RW */ + E1000_TIDV = 0x03820, /* Tx Interrupt Delay Value - RW */ + E1000_TXDCTL = 0x03828, /* Tx Descriptor Control - RW */ + E1000_TADV = 0x0382C, /* Tx Interrupt Absolute Delay Val - RW */ + E1000_TARC0 = 0x03840, /* Tx Arbitration Count (0) */ + E1000_TXDCTL1 = 0x03928, /* Tx Descriptor Control (1) - RW */ + E1000_TARC1 = 0x03940, /* Tx Arbitration Count (1) */ E1000_CRCERRS = 0x04000, /* CRC Error Count - R/clr */ E1000_ALGNERRC = 0x04004, /* Alignment Error Count - R/clr */ E1000_SYMERRS = 0x04008, /* Symbol Error Count - R/clr */ @@ -127,53 +127,53 @@ enum e1e_registers { E1000_LATECOL = 0x04020, /* Late Collision Count - R/clr */ E1000_COLC = 0x04028, /* Collision Count - R/clr */ E1000_DC = 0x04030, /* Defer Count - R/clr */ - E1000_TNCRS = 0x04034, /* TX-No CRS - R/clr */ + E1000_TNCRS = 0x04034, /* Tx-No CRS - R/clr */ E1000_SEC = 0x04038, /* Sequence Error Count - R/clr */ E1000_CEXTERR = 0x0403C, /* Carrier Extension Error Count - R/clr */ E1000_RLEC = 0x04040, /* Receive Length Error Count - R/clr */ - E1000_XONRXC = 0x04048, /* XON RX Count - R/clr */ - E1000_XONTXC = 0x0404C, /* XON TX Count - R/clr */ - E1000_XOFFRXC = 0x04050, /* XOFF RX Count - R/clr */ - E1000_XOFFTXC = 0x04054, /* XOFF TX Count - R/clr */ - E1000_FCRUC = 0x04058, /* Flow Control RX Unsupported Count- R/clr */ - E1000_PRC64 = 0x0405C, /* Packets RX (64 bytes) - R/clr */ - E1000_PRC127 = 0x04060, /* Packets RX (65-127 bytes) - R/clr */ - E1000_PRC255 = 0x04064, /* Packets RX (128-255 bytes) - R/clr */ - E1000_PRC511 = 0x04068, /* Packets RX (255-511 bytes) - R/clr */ - E1000_PRC1023 = 0x0406C, /* Packets RX (512-1023 bytes) - R/clr */ - E1000_PRC1522 = 0x04070, /* Packets RX (1024-1522 bytes) - R/clr */ - E1000_GPRC = 0x04074, /* Good Packets RX Count - R/clr */ - E1000_BPRC = 0x04078, /* Broadcast Packets RX Count - R/clr */ - E1000_MPRC = 0x0407C, /* Multicast Packets RX Count - R/clr */ - E1000_GPTC = 0x04080, /* Good Packets TX Count - R/clr */ - E1000_GORCL = 0x04088, /* Good Octets RX Count Low - R/clr */ - E1000_GORCH = 0x0408C, /* Good Octets RX Count High - R/clr */ - E1000_GOTCL = 0x04090, /* Good Octets TX Count Low - R/clr */ - E1000_GOTCH = 0x04094, /* Good Octets TX Count High - R/clr */ - E1000_RNBC = 0x040A0, /* RX No Buffers Count - R/clr */ - E1000_RUC = 0x040A4, /* RX Undersize Count - R/clr */ - E1000_RFC = 0x040A8, /* RX Fragment Count - R/clr */ - E1000_ROC = 0x040AC, /* RX Oversize Count - R/clr */ - E1000_RJC = 0x040B0, /* RX Jabber Count - R/clr */ - E1000_MGTPRC = 0x040B4, /* Management Packets RX Count - R/clr */ + E1000_XONRXC = 0x04048, /* XON Rx Count - R/clr */ + E1000_XONTXC = 0x0404C, /* XON Tx Count - R/clr */ + E1000_XOFFRXC = 0x04050, /* XOFF Rx Count - R/clr */ + E1000_XOFFTXC = 0x04054, /* XOFF Tx Count - R/clr */ + E1000_FCRUC = 0x04058, /* Flow Control Rx Unsupported Count- R/clr */ + E1000_PRC64 = 0x0405C, /* Packets Rx (64 bytes) - R/clr */ + E1000_PRC127 = 0x04060, /* Packets Rx (65-127 bytes) - R/clr */ + E1000_PRC255 = 0x04064, /* Packets Rx (128-255 bytes) - R/clr */ + E1000_PRC511 = 0x04068, /* Packets Rx (255-511 bytes) - R/clr */ + E1000_PRC1023 = 0x0406C, /* Packets Rx (512-1023 bytes) - R/clr */ + E1000_PRC1522 = 0x04070, /* Packets Rx (1024-1522 bytes) - R/clr */ + E1000_GPRC = 0x04074, /* Good Packets Rx Count - R/clr */ + E1000_BPRC = 0x04078, /* Broadcast Packets Rx Count - R/clr */ + E1000_MPRC = 0x0407C, /* Multicast Packets Rx Count - R/clr */ + E1000_GPTC = 0x04080, /* Good Packets Tx Count - R/clr */ + E1000_GORCL = 0x04088, /* Good Octets Rx Count Low - R/clr */ + E1000_GORCH = 0x0408C, /* Good Octets Rx Count High - R/clr */ + E1000_GOTCL = 0x04090, /* Good Octets Tx Count Low - R/clr */ + E1000_GOTCH = 0x04094, /* Good Octets Tx Count High - R/clr */ + E1000_RNBC = 0x040A0, /* Rx No Buffers Count - R/clr */ + E1000_RUC = 0x040A4, /* Rx Undersize Count - R/clr */ + E1000_RFC = 0x040A8, /* Rx Fragment Count - R/clr */ + E1000_ROC = 0x040AC, /* Rx Oversize Count - R/clr */ + E1000_RJC = 0x040B0, /* Rx Jabber Count - R/clr */ + E1000_MGTPRC = 0x040B4, /* Management Packets Rx Count - R/clr */ E1000_MGTPDC = 0x040B8, /* Management Packets Dropped Count - R/clr */ - E1000_MGTPTC = 0x040BC, /* Management Packets TX Count - R/clr */ - E1000_TORL = 0x040C0, /* Total Octets RX Low - R/clr */ - E1000_TORH = 0x040C4, /* Total Octets RX High - R/clr */ - E1000_TOTL = 0x040C8, /* Total Octets TX Low - R/clr */ - E1000_TOTH = 0x040CC, /* Total Octets TX High - R/clr */ - E1000_TPR = 0x040D0, /* Total Packets RX - R/clr */ - E1000_TPT = 0x040D4, /* Total Packets TX - R/clr */ - E1000_PTC64 = 0x040D8, /* Packets TX (64 bytes) - R/clr */ - E1000_PTC127 = 0x040DC, /* Packets TX (65-127 bytes) - R/clr */ - E1000_PTC255 = 0x040E0, /* Packets TX (128-255 bytes) - R/clr */ - E1000_PTC511 = 0x040E4, /* Packets TX (256-511 bytes) - R/clr */ - E1000_PTC1023 = 0x040E8, /* Packets TX (512-1023 bytes) - R/clr */ - E1000_PTC1522 = 0x040EC, /* Packets TX (1024-1522 Bytes) - R/clr */ - E1000_MPTC = 0x040F0, /* Multicast Packets TX Count - R/clr */ - E1000_BPTC = 0x040F4, /* Broadcast Packets TX Count - R/clr */ - E1000_TSCTC = 0x040F8, /* TCP Segmentation Context TX - R/clr */ - E1000_TSCTFC = 0x040FC, /* TCP Segmentation Context TX Fail - R/clr */ + E1000_MGTPTC = 0x040BC, /* Management Packets Tx Count - R/clr */ + E1000_TORL = 0x040C0, /* Total Octets Rx Low - R/clr */ + E1000_TORH = 0x040C4, /* Total Octets Rx High - R/clr */ + E1000_TOTL = 0x040C8, /* Total Octets Tx Low - R/clr */ + E1000_TOTH = 0x040CC, /* Total Octets Tx High - R/clr */ + E1000_TPR = 0x040D0, /* Total Packets Rx - R/clr */ + E1000_TPT = 0x040D4, /* Total Packets Tx - R/clr */ + E1000_PTC64 = 0x040D8, /* Packets Tx (64 bytes) - R/clr */ + E1000_PTC127 = 0x040DC, /* Packets Tx (65-127 bytes) - R/clr */ + E1000_PTC255 = 0x040E0, /* Packets Tx (128-255 bytes) - R/clr */ + E1000_PTC511 = 0x040E4, /* Packets Tx (256-511 bytes) - R/clr */ + E1000_PTC1023 = 0x040E8, /* Packets Tx (512-1023 bytes) - R/clr */ + E1000_PTC1522 = 0x040EC, /* Packets Tx (1024-1522 Bytes) - R/clr */ + E1000_MPTC = 0x040F0, /* Multicast Packets Tx Count - R/clr */ + E1000_BPTC = 0x040F4, /* Broadcast Packets Tx Count - R/clr */ + E1000_TSCTC = 0x040F8, /* TCP Segmentation Context Tx - R/clr */ + E1000_TSCTFC = 0x040FC, /* TCP Segmentation Context Tx Fail - R/clr */ E1000_IAC = 0x04100, /* Interrupt Assertion Count */ E1000_ICRXPTC = 0x04104, /* Irq Cause Rx Packet Timer Expire Count */ E1000_ICRXATC = 0x04108, /* Irq Cause Rx Abs Timer Expire Count */ @@ -183,7 +183,7 @@ enum e1e_registers { E1000_ICTXQMTC = 0x0411C, /* Irq Cause Tx Queue MinThreshold Count */ E1000_ICRXDMTC = 0x04120, /* Irq Cause Rx Desc MinThreshold Count */ E1000_ICRXOC = 0x04124, /* Irq Cause Receiver Overrun Count */ - E1000_RXCSUM = 0x05000, /* RX Checksum Control - RW */ + E1000_RXCSUM = 0x05000, /* Rx Checksum Control - RW */ E1000_RFCTL = 0x05008, /* Receive Filter Control */ E1000_MTA = 0x05200, /* Multicast Table Array - RW Array */ E1000_RA = 0x05400, /* Receive Address - RW Array */ @@ -250,8 +250,8 @@ enum e1e_registers { #define E1000_VFTA_ENTRY_BIT_SHIFT_MASK 0x1F #define E1000_HICR_EN 0x01 /* Enable bit - RO */ -#define E1000_HICR_C 0x02 /* Driver sets this bit when done - * to put command in RAM */ +/* Driver sets this bit when done to put command in RAM */ +#define E1000_HICR_C 0x02 #define E1000_HICR_FW_RESET_ENABLE 0x40 #define E1000_HICR_FW_RESET 0x80 @@ -685,8 +685,7 @@ struct e1000_mac_operations { s32 (*get_link_up_info)(struct e1000_hw *, u16 *, u16 *); s32 (*led_on)(struct e1000_hw *); s32 (*led_off)(struct e1000_hw *); - void (*mc_addr_list_update)(struct e1000_hw *, u8 *, u32, u32, - u32); + void (*mc_addr_list_update)(struct e1000_hw *, u8 *, u32, u32, u32); s32 (*reset_hw)(struct e1000_hw *); s32 (*init_hw)(struct e1000_hw *); s32 (*setup_link)(struct e1000_hw *); diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 0ae39550768d..844015648110 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -243,8 +243,7 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw) u32 sector_end_addr; u16 i; - /* Can't read flash registers if the register set isn't mapped. - */ + /* Can't read flash registers if the register set isn't mapped. */ if (!hw->flash_address) { hw_dbg(hw, "ERROR: Flash registers not mapped\n"); return -E1000_ERR_CONFIG; @@ -254,17 +253,21 @@ static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw) gfpreg = er32flash(ICH_FLASH_GFPREG); - /* sector_X_addr is a "sector"-aligned address (4096 bytes) + /* + * sector_X_addr is a "sector"-aligned address (4096 bytes) * Add 1 to sector_end_addr since this sector is included in - * the overall size. */ + * the overall size. + */ sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK; sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1; /* flash_base_addr is byte-aligned */ nvm->flash_base_addr = sector_base_addr << FLASH_SECTOR_ADDR_SHIFT; - /* find total size of the NVM, then cut in half since the total - * size represents two separate NVM banks. */ + /* + * find total size of the NVM, then cut in half since the total + * size represents two separate NVM banks. + */ nvm->flash_bank_size = (sector_end_addr - sector_base_addr) << FLASH_SECTOR_ADDR_SHIFT; nvm->flash_bank_size /= 2; @@ -496,7 +499,8 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Initialize the PHY from the NVM on ICH platforms. This + /* + * Initialize the PHY from the NVM on ICH platforms. This * is needed due to an issue where the NVM configuration is * not properly autoloaded after power transitions. * Therefore, after each PHY reset, we will load the @@ -523,7 +527,8 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) udelay(100); } while ((!data) && --loop); - /* If basic configuration is incomplete before the above loop + /* + * If basic configuration is incomplete before the above loop * count reaches 0, loading the configuration from NVM will * leave the PHY in a bad state possibly resulting in no link. */ @@ -536,8 +541,10 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) data &= ~E1000_STATUS_LAN_INIT_DONE; ew32(STATUS, data); - /* Make sure HW does not configure LCD from PHY - * extended configuration before SW configuration */ + /* + * Make sure HW does not configure LCD from PHY + * extended configuration before SW configuration + */ data = er32(EXTCNF_CTRL); if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) return 0; @@ -551,8 +558,7 @@ static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK; cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT; - /* Configure LCD from extended configuration - * region. */ + /* Configure LCD from extended configuration region. */ /* cnf_base_addr is in DWORD */ word_addr = (u16)(cnf_base_addr << 1); @@ -681,8 +687,8 @@ static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw) s32 ret_val; u16 phy_data, offset, mask; - /* Polarity is determined based on the reversal feature - * being enabled. + /* + * Polarity is determined based on the reversal feature being enabled. */ if (phy->polarity_correction) { offset = IFE_PHY_EXTENDED_STATUS_CONTROL; @@ -731,8 +737,10 @@ static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active) phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; ew32(PHY_CTRL, phy_ctrl); - /* Call gig speed drop workaround on LPLU before accessing - * any PHY registers */ + /* + * Call gig speed drop workaround on LPLU before accessing + * any PHY registers + */ if ((hw->mac.type == e1000_ich8lan) && (hw->phy.type == e1000_phy_igp_3)) e1000e_gig_downshift_workaround_ich8lan(hw); @@ -747,30 +755,32 @@ static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active) phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; ew32(PHY_CTRL, phy_ctrl); - /* LPLU and SmartSpeed are mutually exclusive. LPLU is used + /* + * LPLU and SmartSpeed are mutually exclusive. LPLU is used * during Dx states where the power conservation is most * important. During driver activity we should enable - * SmartSpeed, so performance is maintained. */ + * SmartSpeed, so performance is maintained. + */ if (phy->smart_speed == e1000_smart_speed_on) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data |= IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; } else if (phy->smart_speed == e1000_smart_speed_off) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; } @@ -804,34 +814,32 @@ static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active) if (!active) { phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; ew32(PHY_CTRL, phy_ctrl); - /* LPLU and SmartSpeed are mutually exclusive. LPLU is used + /* + * LPLU and SmartSpeed are mutually exclusive. LPLU is used * during Dx states where the power conservation is most * important. During driver activity we should enable - * SmartSpeed, so performance is maintained. */ + * SmartSpeed, so performance is maintained. + */ if (phy->smart_speed == e1000_smart_speed_on) { - ret_val = e1e_rphy(hw, - IGP01E1000_PHY_PORT_CONFIG, - &data); + ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, + &data); if (ret_val) return ret_val; data |= IGP01E1000_PSCFR_SMART_SPEED; - ret_val = e1e_wphy(hw, - IGP01E1000_PHY_PORT_CONFIG, - data); + ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, + data); if (ret_val) return ret_val; } else if (phy->smart_speed == e1000_smart_speed_off) { - ret_val = e1e_rphy(hw, - IGP01E1000_PHY_PORT_CONFIG, - &data); + ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, + &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; - ret_val = e1e_wphy(hw, - IGP01E1000_PHY_PORT_CONFIG, - data); + ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, + data); if (ret_val) return ret_val; } @@ -841,23 +849,21 @@ static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active) phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; ew32(PHY_CTRL, phy_ctrl); - /* Call gig speed drop workaround on LPLU before accessing - * any PHY registers */ + /* + * Call gig speed drop workaround on LPLU before accessing + * any PHY registers + */ if ((hw->mac.type == e1000_ich8lan) && (hw->phy.type == e1000_phy_igp_3)) e1000e_gig_downshift_workaround_ich8lan(hw); /* When LPLU is enabled, we should disable SmartSpeed */ - ret_val = e1e_rphy(hw, - IGP01E1000_PHY_PORT_CONFIG, - &data); + ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; - ret_val = e1e_wphy(hw, - IGP01E1000_PHY_PORT_CONFIG, - data); + ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); } return 0; @@ -944,7 +950,8 @@ static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw) ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); - /* Either we should have a hardware SPI cycle in progress + /* + * Either we should have a hardware SPI cycle in progress * bit to check against, in order to start a new cycle or * FDONE bit should be changed in the hardware so that it * is 1 after hardware reset, which can then be used as an @@ -953,15 +960,19 @@ static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw) */ if (hsfsts.hsf_status.flcinprog == 0) { - /* There is no cycle running at present, - * so we can start a cycle */ - /* Begin by setting Flash Cycle Done. */ + /* + * There is no cycle running at present, + * so we can start a cycle + * Begin by setting Flash Cycle Done. + */ hsfsts.hsf_status.flcdone = 1; ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); ret_val = 0; } else { - /* otherwise poll for sometime so the current - * cycle has a chance to end before giving up. */ + /* + * otherwise poll for sometime so the current + * cycle has a chance to end before giving up. + */ for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) { hsfsts.regval = __er16flash(hw, ICH_FLASH_HSFSTS); if (hsfsts.hsf_status.flcinprog == 0) { @@ -971,8 +982,10 @@ static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw) udelay(1); } if (ret_val == 0) { - /* Successful in waiting for previous cycle to timeout, - * now set the Flash Cycle Done. */ + /* + * Successful in waiting for previous cycle to timeout, + * now set the Flash Cycle Done. + */ hsfsts.hsf_status.flcdone = 1; ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); } else { @@ -1077,10 +1090,12 @@ static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, ret_val = e1000_flash_cycle_ich8lan(hw, ICH_FLASH_READ_COMMAND_TIMEOUT); - /* Check if FCERR is set to 1, if set to 1, clear it + /* + * Check if FCERR is set to 1, if set to 1, clear it * and try the whole sequence a few more times, else * read in (shift in) the Flash Data0, the order is - * least significant byte first msb to lsb */ + * least significant byte first msb to lsb + */ if (ret_val == 0) { flash_data = er32flash(ICH_FLASH_FDATA0); if (size == 1) { @@ -1090,7 +1105,8 @@ static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, } break; } else { - /* If we've gotten here, then things are probably + /* + * If we've gotten here, then things are probably * completely hosed, but if the error condition is * detected, it won't hurt to give it another try... * ICH_FLASH_CYCLE_REPEAT_COUNT times. @@ -1168,18 +1184,20 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) ret_val = e1000e_update_nvm_checksum_generic(hw); if (ret_val) - return ret_val;; + return ret_val; if (nvm->type != e1000_nvm_flash_sw) - return ret_val;; + return ret_val; ret_val = e1000_acquire_swflag_ich8lan(hw); if (ret_val) - return ret_val;; + return ret_val; - /* We're writing to the opposite bank so if we're on bank 1, + /* + * We're writing to the opposite bank so if we're on bank 1, * write to bank 0 etc. We also need to erase the segment that - * is going to be written */ + * is going to be written + */ if (!(er32(EECD) & E1000_EECD_SEC1VAL)) { new_bank_offset = nvm->flash_bank_size; old_bank_offset = 0; @@ -1191,9 +1209,11 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) } for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) { - /* Determine whether to write the value stored + /* + * Determine whether to write the value stored * in the other NVM bank or a modified value stored - * in the shadow RAM */ + * in the shadow RAM + */ if (dev_spec->shadow_ram[i].modified) { data = dev_spec->shadow_ram[i].value; } else { @@ -1202,12 +1222,14 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) &data); } - /* If the word is 0x13, then make sure the signature bits + /* + * If the word is 0x13, then make sure the signature bits * (15:14) are 11b until the commit has completed. * This will allow us to write 10b which indicates the * signature is valid. We want to do this after the write * has completed so that we don't mark the segment valid - * while the write is still in progress */ + * while the write is still in progress + */ if (i == E1000_ICH_NVM_SIG_WORD) data |= E1000_ICH_NVM_SIG_MASK; @@ -1230,18 +1252,22 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) break; } - /* Don't bother writing the segment valid bits if sector - * programming failed. */ + /* + * Don't bother writing the segment valid bits if sector + * programming failed. + */ if (ret_val) { hw_dbg(hw, "Flash commit failed.\n"); e1000_release_swflag_ich8lan(hw); return ret_val; } - /* Finally validate the new segment by setting bit 15:14 + /* + * Finally validate the new segment by setting bit 15:14 * to 10b in word 0x13 , this can be done without an * erase as well since these bits are 11 to start with - * and we need to change bit 14 to 0b */ + * and we need to change bit 14 to 0b + */ act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD; e1000_read_flash_word_ich8lan(hw, act_offset, &data); data &= 0xBFFF; @@ -1253,10 +1279,12 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) return ret_val; } - /* And invalidate the previously valid segment by setting + /* + * And invalidate the previously valid segment by setting * its signature word (0x13) high_byte to 0b. This can be * done without an erase because flash erase sets all bits - * to 1's. We can write 1's to 0's without an erase */ + * to 1's. We can write 1's to 0's without an erase + */ act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1; ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0); if (ret_val) { @@ -1272,7 +1300,8 @@ static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) e1000_release_swflag_ich8lan(hw); - /* Reload the EEPROM, or else modifications will not appear + /* + * Reload the EEPROM, or else modifications will not appear * until after the next adapter reset. */ e1000e_reload_nvm(hw); @@ -1294,7 +1323,8 @@ static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw) s32 ret_val; u16 data; - /* Read 0x19 and check bit 6. If this bit is 0, the checksum + /* + * Read 0x19 and check bit 6. If this bit is 0, the checksum * needs to be fixed. This bit is an indication that the NVM * was prepared by OEM software and did not calculate the * checksum...a likely scenario. @@ -1364,14 +1394,17 @@ static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, ew32flash(ICH_FLASH_FDATA0, flash_data); - /* check if FCERR is set to 1 , if set to 1, clear it - * and try the whole sequence a few more times else done */ + /* + * check if FCERR is set to 1 , if set to 1, clear it + * and try the whole sequence a few more times else done + */ ret_val = e1000_flash_cycle_ich8lan(hw, ICH_FLASH_WRITE_COMMAND_TIMEOUT); if (!ret_val) break; - /* If we're here, then things are most likely + /* + * If we're here, then things are most likely * completely hosed, but if the error condition * is detected, it won't hurt to give it another * try...ICH_FLASH_CYCLE_REPEAT_COUNT times. @@ -1462,9 +1495,10 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); - /* Determine HW Sector size: Read BERASE bits of hw flash status - * register */ - /* 00: The Hw sector is 256 bytes, hence we need to erase 16 + /* + * Determine HW Sector size: Read BERASE bits of hw flash status + * register + * 00: The Hw sector is 256 bytes, hence we need to erase 16 * consecutive sectors. The start index for the nth Hw sector * can be calculated as = bank * 4096 + n * 256 * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. @@ -1511,13 +1545,16 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) if (ret_val) return ret_val; - /* Write a value 11 (block Erase) in Flash - * Cycle field in hw flash control */ + /* + * Write a value 11 (block Erase) in Flash + * Cycle field in hw flash control + */ hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); - /* Write the last 24 bits of an index within the + /* + * Write the last 24 bits of an index within the * block into Flash Linear address field in Flash * Address. */ @@ -1529,13 +1566,14 @@ static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) if (ret_val == 0) break; - /* Check if FCERR is set to 1. If 1, + /* + * Check if FCERR is set to 1. If 1, * clear it and try the whole sequence - * a few more times else Done */ + * a few more times else Done + */ hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); if (hsfsts.hsf_status.flcerr == 1) - /* repeat for some time before - * giving up */ + /* repeat for some time before giving up */ continue; else if (hsfsts.hsf_status.flcdone == 0) return ret_val; @@ -1585,7 +1623,8 @@ static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw) ret_val = e1000e_get_bus_info_pcie(hw); - /* ICH devices are "PCI Express"-ish. They have + /* + * ICH devices are "PCI Express"-ish. They have * a configuration space, but do not contain * PCI Express Capability registers, so bus width * must be hardcoded. @@ -1608,7 +1647,8 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) u32 ctrl, icr, kab; s32 ret_val; - /* Prevent the PCI-E bus from sticking if there is no TLP connection + /* + * Prevent the PCI-E bus from sticking if there is no TLP connection * on the last TLP read/write transaction when MAC is reset. */ ret_val = e1000e_disable_pcie_master(hw); @@ -1619,7 +1659,8 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) hw_dbg(hw, "Masking off all interrupts\n"); ew32(IMC, 0xffffffff); - /* Disable the Transmit and Receive units. Then delay to allow + /* + * Disable the Transmit and Receive units. Then delay to allow * any pending transactions to complete before we hit the MAC * with the global reset. */ @@ -1640,7 +1681,8 @@ static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) ctrl = er32(CTRL); if (!e1000_check_reset_block(hw)) { - /* PHY HW reset requires MAC CORE reset at the same + /* + * PHY HW reset requires MAC CORE reset at the same * time to make sure the interface between MAC and the * external PHY is reset. */ @@ -1724,8 +1766,10 @@ static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw) E1000_TXDCTL_MAX_TX_DESC_PREFETCH; ew32(TXDCTL1, txdctl); - /* ICH8 has opposite polarity of no_snoop bits. - * By default, we should use snoop behavior. */ + /* + * ICH8 has opposite polarity of no_snoop bits. + * By default, we should use snoop behavior. + */ if (mac->type == e1000_ich8lan) snoop = PCIE_ICH8_SNOOP_ALL; else @@ -1736,7 +1780,8 @@ static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw) ctrl_ext |= E1000_CTRL_EXT_RO_DIS; ew32(CTRL_EXT, ctrl_ext); - /* Clear all of the statistics registers (clear on read). It is + /* + * Clear all of the statistics registers (clear on read). It is * important that we do this after we have tried to establish link * because the symbol error count will increment wildly if there * is no link. @@ -1813,7 +1858,8 @@ static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw) if (e1000_check_reset_block(hw)) return 0; - /* ICH parts do not have a word in the NVM to determine + /* + * ICH parts do not have a word in the NVM to determine * the default flow control setting, so we explicitly * set it to full. */ @@ -1853,9 +1899,11 @@ static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw) ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); ew32(CTRL, ctrl); - /* Set the mac to wait the maximum time between each iteration + /* + * Set the mac to wait the maximum time between each iteration * and increase the max iterations when polling the phy; - * this fixes erroneous timeouts at 10Mbps. */ + * this fixes erroneous timeouts at 10Mbps. + */ ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); if (ret_val) return ret_val; @@ -1882,7 +1930,7 @@ static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw) * @speed: pointer to store current link speed * @duplex: pointer to store the current link duplex * - * Calls the generic get_speed_and_duplex to retreive the current link + * Calls the generic get_speed_and_duplex to retrieve the current link * information and then calls the Kumeran lock loss workaround for links at * gigabit speeds. **/ @@ -1930,9 +1978,11 @@ static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw) if (!dev_spec->kmrn_lock_loss_workaround_enabled) return 0; - /* Make sure link is up before proceeding. If not just return. + /* + * Make sure link is up before proceeding. If not just return. * Attempting this while link is negotiating fouled up link - * stability */ + * stability + */ ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); if (!link) return 0; @@ -1961,8 +2011,10 @@ static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw) E1000_PHY_CTRL_NOND0A_GBE_DISABLE); ew32(PHY_CTRL, phy_ctrl); - /* Call gig speed drop workaround on Gig disable before accessing - * any PHY registers */ + /* + * Call gig speed drop workaround on Gig disable before accessing + * any PHY registers + */ e1000e_gig_downshift_workaround_ich8lan(hw); /* unable to acquire PCS lock */ @@ -1970,7 +2022,7 @@ static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw) } /** - * e1000_set_kmrn_lock_loss_workaound_ich8lan - Set Kumeran workaround state + * e1000_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state * @hw: pointer to the HW structure * @state: boolean value used to set the current Kumeran workaround state * @@ -2017,8 +2069,10 @@ void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw) E1000_PHY_CTRL_NOND0A_GBE_DISABLE); ew32(PHY_CTRL, reg); - /* Call gig speed drop workaround on Gig disable before - * accessing any PHY registers */ + /* + * Call gig speed drop workaround on Gig disable before + * accessing any PHY registers + */ if (hw->mac.type == e1000_ich8lan) e1000e_gig_downshift_workaround_ich8lan(hw); diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c index 073934c7f73a..b7eaff0a20ba 100644 --- a/drivers/net/e1000e/lib.c +++ b/drivers/net/e1000e/lib.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -43,8 +43,8 @@ enum e1000_mng_mode { #define E1000_FACTPS_MNGCG 0x20000000 -#define E1000_IAMT_SIGNATURE 0x544D4149 /* Intel(R) Active Management - * Technology signature */ +/* Intel(R) Active Management Technology signature */ +#define E1000_IAMT_SIGNATURE 0x544D4149 /** * e1000e_get_bus_info_pcie - Get PCIe bus information @@ -142,7 +142,8 @@ void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index) { u32 rar_low, rar_high; - /* HW expects these in little endian so we reverse the byte order + /* + * HW expects these in little endian so we reverse the byte order * from network order (big endian) to little endian */ rar_low = ((u32) addr[0] | @@ -171,7 +172,8 @@ static void e1000_mta_set(struct e1000_hw *hw, u32 hash_value) { u32 hash_bit, hash_reg, mta; - /* The MTA is a register array of 32-bit registers. It is + /* + * The MTA is a register array of 32-bit registers. It is * treated like an array of (32*mta_reg_count) bits. We want to * set bit BitArray[hash_value]. So we figure out what register * the bit is in, read it, OR in the new bit, then write @@ -208,12 +210,15 @@ static u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) /* Register count multiplied by bits per register */ hash_mask = (hw->mac.mta_reg_count * 32) - 1; - /* For a mc_filter_type of 0, bit_shift is the number of left-shifts - * where 0xFF would still fall within the hash mask. */ + /* + * For a mc_filter_type of 0, bit_shift is the number of left-shifts + * where 0xFF would still fall within the hash mask. + */ while (hash_mask >> bit_shift != 0xFF) bit_shift++; - /* The portion of the address that is used for the hash table + /* + * The portion of the address that is used for the hash table * is determined by the mc_filter_type setting. * The algorithm is such that there is a total of 8 bits of shifting. * The bit_shift for a mc_filter_type of 0 represents the number of @@ -224,8 +229,8 @@ static u32 e1000_hash_mc_addr(struct e1000_hw *hw, u8 *mc_addr) * cases are a variation of this algorithm...essentially raising the * number of bits to shift mc_addr[5] left, while still keeping the * 8-bit shifting total. - */ - /* For example, given the following Destination MAC Address and an + * + * For example, given the following Destination MAC Address and an * mta register count of 128 (thus a 4096-bit vector and 0xFFF mask), * we can see that the bit_shift for case 0 is 4. These are the hash * values resulting from each mc_filter_type... @@ -279,7 +284,8 @@ void e1000e_mc_addr_list_update_generic(struct e1000_hw *hw, u32 hash_value; u32 i; - /* Load the first set of multicast addresses into the exact + /* + * Load the first set of multicast addresses into the exact * filters (RAR). If there are not enough to fill the RAR * array, clear the filters. */ @@ -375,7 +381,8 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw) s32 ret_val; bool link; - /* We only want to go out to the PHY registers to see if Auto-Neg + /* + * We only want to go out to the PHY registers to see if Auto-Neg * has completed and/or if our link status has changed. The * get_link_status flag is set upon receiving a Link Status * Change or Rx Sequence Error interrupt. @@ -383,7 +390,8 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw) if (!mac->get_link_status) return 0; - /* First we want to see if the MII Status Register reports + /* + * First we want to see if the MII Status Register reports * link. If so, then we want to get the current speed/duplex * of the PHY. */ @@ -396,11 +404,14 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw) mac->get_link_status = 0; - /* Check if there was DownShift, must be checked - * immediately after link-up */ + /* + * Check if there was DownShift, must be checked + * immediately after link-up + */ e1000e_check_downshift(hw); - /* If we are forcing speed/duplex, then we simply return since + /* + * If we are forcing speed/duplex, then we simply return since * we have already determined whether we have link or not. */ if (!mac->autoneg) { @@ -408,13 +419,15 @@ s32 e1000e_check_for_copper_link(struct e1000_hw *hw) return ret_val; } - /* Auto-Neg is enabled. Auto Speed Detection takes care + /* + * Auto-Neg is enabled. Auto Speed Detection takes care * of MAC speed/duplex configuration. So we only need to * configure Collision Distance in the MAC. */ e1000e_config_collision_dist(hw); - /* Configure Flow Control now that Auto-Neg has completed. + /* + * Configure Flow Control now that Auto-Neg has completed. * First, we need to restore the desired flow control * settings because we may have had to re-autoneg with a * different link partner. @@ -446,7 +459,8 @@ s32 e1000e_check_for_fiber_link(struct e1000_hw *hw) status = er32(STATUS); rxcw = er32(RXCW); - /* If we don't have link (auto-negotiation failed or link partner + /* + * If we don't have link (auto-negotiation failed or link partner * cannot auto-negotiate), the cable is plugged in (we have signal), * and our link partner is not trying to auto-negotiate with us (we * are receiving idles or data), we need to force link up. We also @@ -477,7 +491,8 @@ s32 e1000e_check_for_fiber_link(struct e1000_hw *hw) return ret_val; } } else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { - /* If we are forcing link and we are receiving /C/ ordered + /* + * If we are forcing link and we are receiving /C/ ordered * sets, re-enable auto-negotiation in the TXCW register * and disable forced link in the Device Control register * in an attempt to auto-negotiate with our link partner. @@ -511,7 +526,8 @@ s32 e1000e_check_for_serdes_link(struct e1000_hw *hw) status = er32(STATUS); rxcw = er32(RXCW); - /* If we don't have link (auto-negotiation failed or link partner + /* + * If we don't have link (auto-negotiation failed or link partner * cannot auto-negotiate), and our link partner is not trying to * auto-negotiate with us (we are receiving idles or data), * we need to force link up. We also need to give auto-negotiation @@ -540,7 +556,8 @@ s32 e1000e_check_for_serdes_link(struct e1000_hw *hw) return ret_val; } } else if ((ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { - /* If we are forcing link and we are receiving /C/ ordered + /* + * If we are forcing link and we are receiving /C/ ordered * sets, re-enable auto-negotiation in the TXCW register * and disable forced link in the Device Control register * in an attempt to auto-negotiate with our link partner. @@ -551,7 +568,8 @@ s32 e1000e_check_for_serdes_link(struct e1000_hw *hw) mac->serdes_has_link = 1; } else if (!(E1000_TXCW_ANE & er32(TXCW))) { - /* If we force link for non-auto-negotiation switch, check + /* + * If we force link for non-auto-negotiation switch, check * link status based on MAC synchronization for internal * serdes media type. */ @@ -589,7 +607,8 @@ static s32 e1000_set_default_fc_generic(struct e1000_hw *hw) s32 ret_val; u16 nvm_data; - /* Read and store word 0x0F of the EEPROM. This word contains bits + /* + * Read and store word 0x0F of the EEPROM. This word contains bits * that determine the hardware's default PAUSE (flow control) mode, * a bit that determines whether the HW defaults to enabling or * disabling auto-negotiation, and the direction of the @@ -630,7 +649,8 @@ s32 e1000e_setup_link(struct e1000_hw *hw) struct e1000_mac_info *mac = &hw->mac; s32 ret_val; - /* In the case of the phy reset being blocked, we already have a link. + /* + * In the case of the phy reset being blocked, we already have a link. * We do not need to set it up again. */ if (e1000_check_reset_block(hw)) @@ -646,7 +666,8 @@ s32 e1000e_setup_link(struct e1000_hw *hw) return ret_val; } - /* We want to save off the original Flow Control configuration just + /* + * We want to save off the original Flow Control configuration just * in case we get disconnected and then reconnected into a different * hub or switch with different Flow Control capabilities. */ @@ -659,7 +680,8 @@ s32 e1000e_setup_link(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Initialize the flow control address, type, and PAUSE timer + /* + * Initialize the flow control address, type, and PAUSE timer * registers to their default values. This is done even if flow * control is disabled, because it does not hurt anything to * initialize these registers. @@ -686,7 +708,8 @@ static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw) struct e1000_mac_info *mac = &hw->mac; u32 txcw; - /* Check for a software override of the flow control settings, and + /* + * Check for a software override of the flow control settings, and * setup the device accordingly. If auto-negotiation is enabled, then * software will have to set the "PAUSE" bits to the correct value in * the Transmit Config Word Register (TXCW) and re-start auto- @@ -700,7 +723,7 @@ static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw) * but not send pause frames). * 2: Tx flow control is enabled (we can send pause frames but we * do not support receiving pause frames). - * 3: Both Rx and TX flow control (symmetric) are enabled. + * 3: Both Rx and Tx flow control (symmetric) are enabled. */ switch (mac->fc) { case e1000_fc_none: @@ -708,23 +731,26 @@ static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw) txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); break; case e1000_fc_rx_pause: - /* RX Flow control is enabled and TX Flow control is disabled + /* + * Rx Flow control is enabled and Tx Flow control is disabled * by a software over-ride. Since there really isn't a way to - * advertise that we are capable of RX Pause ONLY, we will - * advertise that we support both symmetric and asymmetric RX + * advertise that we are capable of Rx Pause ONLY, we will + * advertise that we support both symmetric and asymmetric Rx * PAUSE. Later, we will disable the adapter's ability to send * PAUSE frames. */ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); break; case e1000_fc_tx_pause: - /* TX Flow control is enabled, and RX Flow control is disabled, + /* + * Tx Flow control is enabled, and Rx Flow control is disabled, * by a software over-ride. */ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); break; case e1000_fc_full: - /* Flow control (both RX and TX) is enabled by a software + /* + * Flow control (both Rx and Tx) is enabled by a software * over-ride. */ txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); @@ -754,7 +780,8 @@ static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw) u32 i, status; s32 ret_val; - /* If we have a signal (the cable is plugged in, or assumed true for + /* + * If we have a signal (the cable is plugged in, or assumed true for * serdes media) then poll for a "Link-Up" indication in the Device * Status Register. Time-out if a link isn't seen in 500 milliseconds * seconds (Auto-negotiation should complete in less than 500 @@ -769,7 +796,8 @@ static s32 e1000_poll_fiber_serdes_link_generic(struct e1000_hw *hw) if (i == FIBER_LINK_UP_LIMIT) { hw_dbg(hw, "Never got a valid link from auto-neg!!!\n"); mac->autoneg_failed = 1; - /* AutoNeg failed to achieve a link, so we'll call + /* + * AutoNeg failed to achieve a link, so we'll call * mac->check_for_link. This routine will force the * link up if we detect a signal. This will allow us to * communicate with non-autonegotiating link partners. @@ -811,7 +839,8 @@ s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Since auto-negotiation is enabled, take the link out of reset (the + /* + * Since auto-negotiation is enabled, take the link out of reset (the * link will be in reset, because we previously reset the chip). This * will restart auto-negotiation. If auto-negotiation is successful * then the link-up status bit will be set and the flow control enable @@ -823,7 +852,8 @@ s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw) e1e_flush(); msleep(1); - /* For these adapters, the SW defineable pin 1 is set when the optics + /* + * For these adapters, the SW definable pin 1 is set when the optics * detect a signal. If we have a signal, then poll for a "Link-Up" * indication. */ @@ -864,21 +894,23 @@ void e1000e_config_collision_dist(struct e1000_hw *hw) * * Sets the flow control high/low threshold (watermark) registers. If * flow control XON frame transmission is enabled, then set XON frame - * tansmission as well. + * transmission as well. **/ s32 e1000e_set_fc_watermarks(struct e1000_hw *hw) { struct e1000_mac_info *mac = &hw->mac; u32 fcrtl = 0, fcrth = 0; - /* Set the flow control receive threshold registers. Normally, + /* + * Set the flow control receive threshold registers. Normally, * these registers will be set to a default threshold that may be * adjusted later by the driver's runtime code. However, if the * ability to transmit pause frames is not enabled, then these * registers will be set to 0. */ if (mac->fc & e1000_fc_tx_pause) { - /* We need to set up the Receive Threshold high and low water + /* + * We need to set up the Receive Threshold high and low water * marks as well as (optionally) enabling the transmission of * XON frames. */ @@ -909,7 +941,8 @@ s32 e1000e_force_mac_fc(struct e1000_hw *hw) ctrl = er32(CTRL); - /* Because we didn't get link via the internal auto-negotiation + /* + * Because we didn't get link via the internal auto-negotiation * mechanism (we either forced link or we got link via PHY * auto-neg), we have to manually enable/disable transmit an * receive flow control. @@ -923,7 +956,7 @@ s32 e1000e_force_mac_fc(struct e1000_hw *hw) * frames but not send pause frames). * 2: Tx flow control is enabled (we can send pause frames * frames but we do not receive pause frames). - * 3: Both Rx and TX flow control (symmetric) is enabled. + * 3: Both Rx and Tx flow control (symmetric) is enabled. * other: No other values should be possible at this point. */ hw_dbg(hw, "mac->fc = %u\n", mac->fc); @@ -970,7 +1003,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) u16 mii_status_reg, mii_nway_adv_reg, mii_nway_lp_ability_reg; u16 speed, duplex; - /* Check for the case where we have fiber media and auto-neg failed + /* + * Check for the case where we have fiber media and auto-neg failed * so we had to force link. In this case, we need to force the * configuration of the MAC to match the "fc" parameter. */ @@ -988,13 +1022,15 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) return ret_val; } - /* Check for the case where we have copper media and auto-neg is + /* + * Check for the case where we have copper media and auto-neg is * enabled. In this case, we need to check and see if Auto-Neg * has completed, and if so, how the PHY and link partner has * flow control configured. */ if ((hw->media_type == e1000_media_type_copper) && mac->autoneg) { - /* Read the MII Status Register and check to see if AutoNeg + /* + * Read the MII Status Register and check to see if AutoNeg * has completed. We read this twice because this reg has * some "sticky" (latched) bits. */ @@ -1011,7 +1047,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) return ret_val; } - /* The AutoNeg process has completed, so we now need to + /* + * The AutoNeg process has completed, so we now need to * read both the Auto Negotiation Advertisement * Register (Address 4) and the Auto_Negotiation Base * Page Ability Register (Address 5) to determine how @@ -1024,7 +1061,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Two bits in the Auto Negotiation Advertisement Register + /* + * Two bits in the Auto Negotiation Advertisement Register * (Address 4) and two bits in the Auto Negotiation Base * Page Ability Register (Address 5) determine flow control * for both the PHY and the link partner. The following @@ -1045,8 +1083,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) * 1 | 1 | 0 | 0 | e1000_fc_none * 1 | 1 | 0 | 1 | e1000_fc_rx_pause * - */ - /* Are both PAUSE bits set to 1? If so, this implies + * + * Are both PAUSE bits set to 1? If so, this implies * Symmetric Flow Control is enabled at both ends. The * ASM_DIR bits are irrelevant per the spec. * @@ -1060,9 +1098,10 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) */ if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { - /* Now we need to check if the user selected RX ONLY + /* + * Now we need to check if the user selected Rx ONLY * of pause frames. In this case, we had to advertise - * FULL flow control because we could not advertise RX + * FULL flow control because we could not advertise Rx * ONLY. Hence, we must now check to see if we need to * turn OFF the TRANSMISSION of PAUSE frames. */ @@ -1075,7 +1114,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) "RX PAUSE frames only.\r\n"); } } - /* For receiving PAUSE frames ONLY. + /* + * For receiving PAUSE frames ONLY. * * LOCAL DEVICE | LINK PARTNER * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result @@ -1090,7 +1130,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) mac->fc = e1000_fc_tx_pause; hw_dbg(hw, "Flow Control = TX PAUSE frames only.\r\n"); } - /* For transmitting PAUSE frames ONLY. + /* + * For transmitting PAUSE frames ONLY. * * LOCAL DEVICE | LINK PARTNER * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result @@ -1113,7 +1154,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) hw_dbg(hw, "Flow Control = NONE.\r\n"); } - /* Now we need to do one last check... If we auto- + /* + * Now we need to do one last check... If we auto- * negotiated to HALF DUPLEX, flow control should not be * enabled per IEEE 802.3 spec. */ @@ -1126,7 +1168,8 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw) if (duplex == HALF_DUPLEX) mac->fc = e1000_fc_none; - /* Now we call a subroutine to actually force the MAC + /* + * Now we call a subroutine to actually force the MAC * controller to use the correct flow control settings. */ ret_val = e1000e_force_mac_fc(hw); @@ -1398,8 +1441,10 @@ s32 e1000e_blink_led(struct e1000_hw *hw) ledctl_blink = E1000_LEDCTL_LED0_BLINK | (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT); } else { - /* set the blink bit for each LED that's "on" (0x0E) - * in ledctl_mode2 */ + /* + * set the blink bit for each LED that's "on" (0x0E) + * in ledctl_mode2 + */ ledctl_blink = hw->mac.ledctl_mode2; for (i = 0; i < 4; i++) if (((hw->mac.ledctl_mode2 >> (i * 8)) & 0xFF) == @@ -1562,8 +1607,7 @@ void e1000e_update_adaptive(struct e1000_hw *hw) else mac->current_ifs_val += mac->ifs_step_size; - ew32(AIT, - mac->current_ifs_val); + ew32(AIT, mac->current_ifs_val); } } } else { @@ -1826,10 +1870,12 @@ static s32 e1000_ready_nvm_eeprom(struct e1000_hw *hw) udelay(1); timeout = NVM_MAX_RETRY_SPI; - /* Read "Status Register" repeatedly until the LSB is cleared. + /* + * Read "Status Register" repeatedly until the LSB is cleared. * The EEPROM will signal that the command has been completed * by clearing bit 0 of the internal status register. If it's - * not cleared within 'timeout', then error out. */ + * not cleared within 'timeout', then error out. + */ while (timeout) { e1000_shift_out_eec_bits(hw, NVM_RDSR_OPCODE_SPI, hw->nvm.opcode_bits); @@ -1866,8 +1912,10 @@ s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) u32 i, eerd = 0; s32 ret_val = 0; - /* A check for invalid values: offset too large, too many words, - * and not enough words. */ + /* + * A check for invalid values: offset too large, too many words, + * too many words for the offset, and not enough words. + */ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) || (words == 0)) { hw_dbg(hw, "nvm parameter(s) out of bounds\n"); @@ -1883,8 +1931,7 @@ s32 e1000e_read_nvm_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) if (ret_val) break; - data[i] = (er32(EERD) >> - E1000_NVM_RW_REG_DATA); + data[i] = (er32(EERD) >> E1000_NVM_RW_REG_DATA); } return ret_val; @@ -1908,8 +1955,10 @@ s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) s32 ret_val; u16 widx = 0; - /* A check for invalid values: offset too large, too many words, - * and not enough words. */ + /* + * A check for invalid values: offset too large, too many words, + * and not enough words. + */ if ((offset >= nvm->word_size) || (words > (nvm->word_size - offset)) || (words == 0)) { hw_dbg(hw, "nvm parameter(s) out of bounds\n"); @@ -1939,8 +1988,10 @@ s32 e1000e_write_nvm_spi(struct e1000_hw *hw, u16 offset, u16 words, u16 *data) e1000_standby_nvm(hw); - /* Some SPI eeproms use the 8th address bit embedded in the - * opcode */ + /* + * Some SPI eeproms use the 8th address bit embedded in the + * opcode + */ if ((nvm->address_bits == 8) && (offset >= 128)) write_opcode |= NVM_A8_OPCODE_SPI; @@ -1985,9 +2036,9 @@ s32 e1000e_read_mac_addr(struct e1000_hw *hw) /* Check for an alternate MAC address. An alternate MAC * address can be setup by pre-boot software and must be * treated like a permanent address and must override the - * actual permanent MAC address. */ + * actual permanent MAC address.*/ ret_val = e1000_read_nvm(hw, NVM_ALT_MAC_ADDR_PTR, 1, - &mac_addr_offset); + &mac_addr_offset); if (ret_val) { hw_dbg(hw, "NVM Read Error\n"); return ret_val; @@ -2000,7 +2051,7 @@ s32 e1000e_read_mac_addr(struct e1000_hw *hw) mac_addr_offset += ETH_ALEN/sizeof(u16); /* make sure we have a valid mac address here - * before using it */ + * before using it */ ret_val = e1000_read_nvm(hw, mac_addr_offset, 1, &nvm_data); if (ret_val) { @@ -2012,7 +2063,7 @@ s32 e1000e_read_mac_addr(struct e1000_hw *hw) } if (mac_addr_offset) - hw->dev_spec.e82571.alt_mac_addr_is_present = 1; + hw->dev_spec.e82571.alt_mac_addr_is_present = 1; } for (i = 0; i < ETH_ALEN; i += 2) { @@ -2188,7 +2239,7 @@ bool e1000e_check_mng_mode(struct e1000_hw *hw) } /** - * e1000e_enable_tx_pkt_filtering - Enable packet filtering on TX + * e1000e_enable_tx_pkt_filtering - Enable packet filtering on Tx * @hw: pointer to the HW structure * * Enables packet filtering on transmit packets if manageability is enabled @@ -2208,7 +2259,8 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw) return 0; } - /* If we can't read from the host interface for whatever + /* + * If we can't read from the host interface for whatever * reason, disable filtering. */ ret_val = e1000_mng_enable_host_if(hw); @@ -2226,7 +2278,8 @@ bool e1000e_enable_tx_pkt_filtering(struct e1000_hw *hw) hdr->checksum = 0; csum = e1000_calculate_checksum((u8 *)hdr, E1000_MNG_DHCP_COOKIE_LENGTH); - /* If either the checksums or signature don't match, then + /* + * If either the checksums or signature don't match, then * the cookie area isn't considered valid, in which case we * take the safe route of assuming Tx filtering is enabled. */ @@ -2318,8 +2371,10 @@ static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, /* Calculate length in DWORDs */ length >>= 2; - /* The device driver writes the relevant command block into the - * ram area. */ + /* + * The device driver writes the relevant command block into the + * ram area. + */ for (i = 0; i < length; i++) { for (j = 0; j < sizeof(u32); j++) { *(tmp + j) = *bufptr++; diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index f501dd5e7b16..88fac392d4e0 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -82,7 +82,7 @@ static int e1000_desc_unused(struct e1000_ring *ring) } /** - * e1000_receive_skb - helper function to handle rx indications + * e1000_receive_skb - helper function to handle Rx indications * @adapter: board private structure * @status: descriptor status field as written by hardware * @vlan: descriptor vlan field as written by hardware (no le/be conversion) @@ -138,8 +138,9 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, /* TCP checksum is good */ skb->ip_summed = CHECKSUM_UNNECESSARY; } else { - /* IP fragment with UDP payload */ - /* Hardware complements the payload checksum, so we undo it + /* + * IP fragment with UDP payload + * Hardware complements the payload checksum, so we undo it * and then put the value in host order for further stack use. */ __sum16 sum = (__force __sum16)htons(csum); @@ -182,7 +183,8 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, break; } - /* Make buffer alignment 2 beyond a 16 byte boundary + /* + * Make buffer alignment 2 beyond a 16 byte boundary * this will result in a 16 byte aligned IP header after * the 14 byte MAC header is removed */ @@ -213,10 +215,12 @@ map_skb: if (i-- == 0) i = (rx_ring->count - 1); - /* Force memory writes to complete before letting h/w + /* + * Force memory writes to complete before letting h/w * know there are new descriptors to fetch. (Only * applicable for weak-ordered memory model archs, - * such as IA-64). */ + * such as IA-64). + */ wmb(); writel(i, adapter->hw.hw_addr + rx_ring->tail); } @@ -285,7 +289,8 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter, break; } - /* Make buffer alignment 2 beyond a 16 byte boundary + /* + * Make buffer alignment 2 beyond a 16 byte boundary * this will result in a 16 byte aligned IP header after * the 14 byte MAC header is removed */ @@ -319,12 +324,15 @@ no_buffers: if (!(i--)) i = (rx_ring->count - 1); - /* Force memory writes to complete before letting h/w + /* + * Force memory writes to complete before letting h/w * know there are new descriptors to fetch. (Only * applicable for weak-ordered memory model archs, - * such as IA-64). */ + * such as IA-64). + */ wmb(); - /* Hardware increments by 16 bytes, but packet split + /* + * Hardware increments by 16 bytes, but packet split * descriptors are 32 bytes...so we increment tail * twice as much. */ @@ -409,9 +417,11 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, total_rx_bytes += length; total_rx_packets++; - /* code added for copybreak, this should improve + /* + * code added for copybreak, this should improve * performance for small packets with large amounts - * of reassembly being done in the stack */ + * of reassembly being done in the stack + */ if (length < copybreak) { struct sk_buff *new_skb = netdev_alloc_skb(netdev, length + NET_IP_ALIGN); @@ -581,14 +591,15 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) } if (adapter->detect_tx_hung) { - /* Detect a transmit hang in hardware, this serializes the - * check with the clearing of time_stamp and movement of i */ + /* + * Detect a transmit hang in hardware, this serializes the + * check with the clearing of time_stamp and movement of i + */ adapter->detect_tx_hung = 0; if (tx_ring->buffer_info[eop].dma && time_after(jiffies, tx_ring->buffer_info[eop].time_stamp + (adapter->tx_timeout_factor * HZ)) - && !(er32(STATUS) & - E1000_STATUS_TXOFF)) { + && !(er32(STATUS) & E1000_STATUS_TXOFF)) { e1000_print_tx_hang(adapter); netif_stop_queue(netdev); } @@ -677,21 +688,28 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, skb_put(skb, length); { - /* this looks ugly, but it seems compiler issues make it - more efficient than reusing j */ + /* + * this looks ugly, but it seems compiler issues make it + * more efficient than reusing j + */ int l1 = le16_to_cpu(rx_desc->wb.upper.length[0]); - /* page alloc/put takes too long and effects small packet - * throughput, so unsplit small packets and save the alloc/put*/ + /* + * page alloc/put takes too long and effects small packet + * throughput, so unsplit small packets and save the alloc/put + * only valid in softirq (napi) context to call kmap_* + */ if (l1 && (l1 <= copybreak) && ((length + l1) <= adapter->rx_ps_bsize0)) { u8 *vaddr; ps_page = &buffer_info->ps_pages[0]; - /* there is no documentation about how to call + /* + * there is no documentation about how to call * kmap_atomic, so we can't hold the mapping - * very long */ + * very long + */ pci_dma_sync_single_for_cpu(pdev, ps_page->dma, PAGE_SIZE, PCI_DMA_FROMDEVICE); vaddr = kmap_atomic(ps_page->page, KM_SKB_DATA_SOFTIRQ); @@ -836,19 +854,25 @@ static irqreturn_t e1000_intr_msi(int irq, void *data) struct e1000_hw *hw = &adapter->hw; u32 icr = er32(ICR); - /* read ICR disables interrupts using IAM */ + /* + * read ICR disables interrupts using IAM + */ if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { hw->mac.get_link_status = 1; - /* ICH8 workaround-- Call gig speed drop workaround on cable - * disconnect (LSC) before accessing any PHY registers */ + /* + * ICH8 workaround-- Call gig speed drop workaround on cable + * disconnect (LSC) before accessing any PHY registers + */ if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) && (!(er32(STATUS) & E1000_STATUS_LU))) e1000e_gig_downshift_workaround_ich8lan(hw); - /* 80003ES2LAN workaround-- For packet buffer work-around on + /* + * 80003ES2LAN workaround-- For packet buffer work-around on * link down event; disable receives here in the ISR and reset - * adapter in watchdog */ + * adapter in watchdog + */ if (netif_carrier_ok(netdev) && adapter->flags & FLAG_RX_NEEDS_RESTART) { /* disable receives */ @@ -886,23 +910,31 @@ static irqreturn_t e1000_intr(int irq, void *data) if (!icr) return IRQ_NONE; /* Not our interrupt */ - /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is - * not set, then the adapter didn't send an interrupt */ + /* + * IMS will not auto-mask if INT_ASSERTED is not set, and if it is + * not set, then the adapter didn't send an interrupt + */ if (!(icr & E1000_ICR_INT_ASSERTED)) return IRQ_NONE; - /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No - * need for the IMC write */ + /* + * Interrupt Auto-Mask...upon reading ICR, + * interrupts are masked. No need for the + * IMC write + */ if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { hw->mac.get_link_status = 1; - /* ICH8 workaround-- Call gig speed drop workaround on cable - * disconnect (LSC) before accessing any PHY registers */ + /* + * ICH8 workaround-- Call gig speed drop workaround on cable + * disconnect (LSC) before accessing any PHY registers + */ if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) && (!(er32(STATUS) & E1000_STATUS_LU))) e1000e_gig_downshift_workaround_ich8lan(hw); - /* 80003ES2LAN workaround-- + /* + * 80003ES2LAN workaround-- * For packet buffer work-around on link down event; * disable receives here in the ISR and * reset adapter in watchdog @@ -1011,8 +1043,7 @@ static void e1000_get_hw_control(struct e1000_adapter *adapter) ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD); } else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) { ctrl_ext = er32(CTRL_EXT); - ew32(CTRL_EXT, - ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); + ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD); } } @@ -1038,8 +1069,7 @@ static void e1000_release_hw_control(struct e1000_adapter *adapter) ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD); } else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) { ctrl_ext = er32(CTRL_EXT); - ew32(CTRL_EXT, - ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); + ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD); } } @@ -1341,9 +1371,11 @@ static void e1000_set_itr(struct e1000_adapter *adapter) set_itr_now: if (new_itr != adapter->itr) { - /* this attempts to bias the interrupt rate towards Bulk + /* + * this attempts to bias the interrupt rate towards Bulk * by adding intermediate steps when interrupt rate is - * increasing */ + * increasing + */ new_itr = new_itr > adapter->itr ? min(adapter->itr + (new_itr >> 2), new_itr) : new_itr; @@ -1354,7 +1386,7 @@ set_itr_now: /** * e1000_clean - NAPI Rx polling callback - * @adapter: board private structure + * @napi: struct associated with this polling callback * @budget: amount of packets driver is allowed to process this poll **/ static int e1000_clean(struct napi_struct *napi, int budget) @@ -1366,10 +1398,12 @@ static int e1000_clean(struct napi_struct *napi, int budget) /* Must NOT use netdev_priv macro here. */ adapter = poll_dev->priv; - /* e1000_clean is called per-cpu. This lock protects + /* + * e1000_clean is called per-cpu. This lock protects * tx_ring from being cleaned by multiple cpus * simultaneously. A failure obtaining the lock means - * tx_ring is currently being cleaned anyway. */ + * tx_ring is currently being cleaned anyway. + */ if (spin_trylock(&adapter->tx_queue_lock)) { tx_cleaned = e1000_clean_tx_irq(adapter); spin_unlock(&adapter->tx_queue_lock); @@ -1539,9 +1573,11 @@ static void e1000_init_manageability(struct e1000_adapter *adapter) manc = er32(MANC); - /* enable receiving management packets to the host. this will probably + /* + * enable receiving management packets to the host. this will probably * generate destination unreachable messages from the host OS, but - * the packets will be handled on SMBUS */ + * the packets will be handled on SMBUS + */ manc |= E1000_MANC_EN_MNG2HOST; manc2h = er32(MANC2H); #define E1000_MNG2HOST_PORT_623 (1 << 5) @@ -1591,7 +1627,7 @@ static void e1000_configure_tx(struct e1000_adapter *adapter) /* Set the Tx Interrupt Delay register */ ew32(TIDV, adapter->tx_int_delay); - /* tx irq moderation */ + /* Tx irq moderation */ ew32(TADV, adapter->tx_abs_int_delay); /* Program the Transmit Control Register */ @@ -1602,8 +1638,10 @@ static void e1000_configure_tx(struct e1000_adapter *adapter) if (adapter->flags & FLAG_TARC_SPEED_MODE_BIT) { tarc = er32(TARC0); - /* set the speed mode bit, we'll clear it if we're not at - * gigabit link later */ + /* + * set the speed mode bit, we'll clear it if we're not at + * gigabit link later + */ #define SPEED_MODE_BIT (1 << 21) tarc |= SPEED_MODE_BIT; ew32(TARC0, tarc); @@ -1724,8 +1762,10 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter) /* Configure extra packet-split registers */ rfctl = er32(RFCTL); rfctl |= E1000_RFCTL_EXTEN; - /* disable packet split support for IPv6 extension headers, - * because some malformed IPv6 headers can hang the RX */ + /* + * disable packet split support for IPv6 extension headers, + * because some malformed IPv6 headers can hang the Rx + */ rfctl |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS); @@ -1794,8 +1834,7 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) /* irq moderation */ ew32(RADV, adapter->rx_abs_int_delay); if (adapter->itr_setting != 0) - ew32(ITR, - 1000000000 / (adapter->itr * 256)); + ew32(ITR, 1000000000 / (adapter->itr * 256)); ctrl_ext = er32(CTRL_EXT); /* Reset delay timers after every interrupt */ @@ -1806,8 +1845,10 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) ew32(CTRL_EXT, ctrl_ext); e1e_flush(); - /* Setup the HW Rx Head and Tail Descriptor Pointers and - * the Base and Length of the Rx Descriptor Ring */ + /* + * Setup the HW Rx Head and Tail Descriptor Pointers and + * the Base and Length of the Rx Descriptor Ring + */ rdba = rx_ring->dma; ew32(RDBAL, (rdba & DMA_32BIT_MASK)); ew32(RDBAH, (rdba >> 32)); @@ -1822,8 +1863,10 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) if (adapter->flags & FLAG_RX_CSUM_ENABLED) { rxcsum |= E1000_RXCSUM_TUOFL; - /* IPv4 payload checksum for UDP fragments must be - * used in conjunction with packet-split. */ + /* + * IPv4 payload checksum for UDP fragments must be + * used in conjunction with packet-split. + */ if (adapter->rx_ps_pages) rxcsum |= E1000_RXCSUM_IPPCSE; } else { @@ -1832,9 +1875,11 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) } ew32(RXCSUM, rxcsum); - /* Enable early receives on supported devices, only takes effect when + /* + * Enable early receives on supported devices, only takes effect when * packet size is equal or larger than the specified value (in 8 byte - * units), e.g. using jumbo frames when setting to E1000_ERT_2048 */ + * units), e.g. using jumbo frames when setting to E1000_ERT_2048 + */ if ((adapter->flags & FLAG_HAS_ERT) && (adapter->netdev->mtu > ETH_DATA_LEN)) ew32(ERT, E1000_ERT_2048); @@ -1930,7 +1975,7 @@ static void e1000_set_multi(struct net_device *netdev) } /** - * e1000_configure - configure the hardware for RX and TX + * e1000_configure - configure the hardware for Rx and Tx * @adapter: private board structure **/ static void e1000_configure(struct e1000_adapter *adapter) @@ -1943,8 +1988,7 @@ static void e1000_configure(struct e1000_adapter *adapter) e1000_configure_tx(adapter); e1000_setup_rctl(adapter); e1000_configure_rx(adapter); - adapter->alloc_rx_buf(adapter, - e1000_desc_unused(adapter->rx_ring)); + adapter->alloc_rx_buf(adapter, e1000_desc_unused(adapter->rx_ring)); } /** @@ -1961,8 +2005,10 @@ void e1000e_power_up_phy(struct e1000_adapter *adapter) /* Just clear the power down bit to wake the phy back up */ if (adapter->hw.media_type == e1000_media_type_copper) { - /* according to the manual, the phy will retain its - * settings across a power-down/up cycle */ + /* + * According to the manual, the phy will retain its + * settings across a power-down/up cycle + */ e1e_rphy(&adapter->hw, PHY_CONTROL, &mii_reg); mii_reg &= ~MII_CR_POWER_DOWN; e1e_wphy(&adapter->hw, PHY_CONTROL, mii_reg); @@ -1991,8 +2037,7 @@ static void e1000_power_down_phy(struct e1000_adapter *adapter) return; /* reset is blocked because of a SoL/IDER session */ - if (e1000e_check_mng_mode(hw) || - e1000_check_reset_block(hw)) + if (e1000e_check_mng_mode(hw) || e1000_check_reset_block(hw)) return; /* manageability (AMT) is enabled */ @@ -2012,7 +2057,7 @@ static void e1000_power_down_phy(struct e1000_adapter *adapter) * This function boots the hardware and enables some settings that * require a configuration cycle of the hardware - those cannot be * set/changed during runtime. After reset the device needs to be - * properly configured for rx, tx etc. + * properly configured for Rx, Tx etc. */ void e1000e_reset(struct e1000_adapter *adapter) { @@ -2022,23 +2067,27 @@ void e1000e_reset(struct e1000_adapter *adapter) u32 pba; u16 hwm; + /* reset Packet Buffer Allocation to default */ ew32(PBA, adapter->pba); if (mac->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN ) { - /* To maintain wire speed transmits, the Tx FIFO should be + /* + * To maintain wire speed transmits, the Tx FIFO should be * large enough to accommodate two full transmit packets, * rounded up to the next 1KB and expressed in KB. Likewise, * the Rx FIFO should be large enough to accommodate at least * one full receive packet and is similarly rounded up and - * expressed in KB. */ + * expressed in KB. + */ pba = er32(PBA); /* upper 16 bits has Tx packet buffer allocation size in KB */ tx_space = pba >> 16; /* lower 16 bits has Rx packet buffer allocation size in KB */ pba &= 0xffff; - /* the tx fifo also stores 16 bytes of information about the tx - * but don't include ethernet FCS because hardware appends it */ - min_tx_space = (mac->max_frame_size + + /* + * the Tx fifo also stores 16 bytes of information about the tx + * but don't include ethernet FCS because hardware appends it + */ min_tx_space = (mac->max_frame_size + sizeof(struct e1000_tx_desc) - ETH_FCS_LEN) * 2; min_tx_space = ALIGN(min_tx_space, 1024); @@ -2048,15 +2097,19 @@ void e1000e_reset(struct e1000_adapter *adapter) min_rx_space = ALIGN(min_rx_space, 1024); min_rx_space >>= 10; - /* If current Tx allocation is less than the min Tx FIFO size, + /* + * If current Tx allocation is less than the min Tx FIFO size, * and the min Tx FIFO size is less than the current Rx FIFO - * allocation, take space away from current Rx allocation */ + * allocation, take space away from current Rx allocation + */ if ((tx_space < min_tx_space) && ((min_tx_space - tx_space) < pba)) { pba -= min_tx_space - tx_space; - /* if short on rx space, rx wins and must trump tx - * adjustment or use Early Receive if available */ + /* + * if short on Rx space, Rx wins and must trump tx + * adjustment or use Early Receive if available + */ if ((pba < min_rx_space) && (!(adapter->flags & FLAG_HAS_ERT))) /* ERT enabled in e1000_configure_rx */ @@ -2067,14 +2120,17 @@ void e1000e_reset(struct e1000_adapter *adapter) } - /* flow control settings */ - /* The high water mark must be low enough to fit one full frame + /* + * flow control settings + * + * The high water mark must be low enough to fit one full frame * (or the size used for early receive) above it in the Rx FIFO. * Set it to the lower of: * - 90% of the Rx FIFO size, and * - the full Rx FIFO size minus the early receive size (for parts * with ERT support assuming ERT set to E1000_ERT_2048), or - * - the full Rx FIFO size minus one full frame */ + * - the full Rx FIFO size minus one full frame + */ if (adapter->flags & FLAG_HAS_ERT) hwm = min(((adapter->pba << 10) * 9 / 10), ((adapter->pba << 10) - (E1000_ERT_2048 << 3))); @@ -2108,9 +2164,11 @@ void e1000e_reset(struct e1000_adapter *adapter) if (!(adapter->flags & FLAG_SMART_POWER_DOWN)) { u16 phy_data = 0; - /* speed up time to link by disabling smart power down, ignore + /* + * speed up time to link by disabling smart power down, ignore * the return value of this function because there is nothing - * different we would do if it failed */ + * different we would do if it failed + */ e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); phy_data &= ~IGP02E1000_PM_SPD; e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); @@ -2140,8 +2198,10 @@ void e1000e_down(struct e1000_adapter *adapter) struct e1000_hw *hw = &adapter->hw; u32 tctl, rctl; - /* signal that we're down so the interrupt handler does not - * reschedule our watchdog timer */ + /* + * signal that we're down so the interrupt handler does not + * reschedule our watchdog timer + */ set_bit(__E1000_DOWN, &adapter->state); /* disable receives in the hardware */ @@ -2272,16 +2332,20 @@ static int e1000_open(struct net_device *netdev) E1000_MNG_DHCP_COOKIE_STATUS_VLAN)) e1000_update_mng_vlan(adapter); - /* If AMT is enabled, let the firmware know that the network - * interface is now open */ + /* + * If AMT is enabled, let the firmware know that the network + * interface is now open + */ if ((adapter->flags & FLAG_HAS_AMT) && e1000e_check_mng_mode(&adapter->hw)) e1000_get_hw_control(adapter); - /* before we allocate an interrupt, we must be ready to handle it. + /* + * before we allocate an interrupt, we must be ready to handle it. * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt * as soon as we call pci_request_irq, so we have to setup our - * clean_rx handler before we do so. */ + * clean_rx handler before we do so. + */ e1000_configure(adapter); err = e1000_request_irq(adapter); @@ -2335,16 +2399,20 @@ static int e1000_close(struct net_device *netdev) e1000e_free_tx_resources(adapter); e1000e_free_rx_resources(adapter); - /* kill manageability vlan ID if supported, but not if a vlan with - * the same ID is registered on the host OS (let 8021q kill it) */ + /* + * kill manageability vlan ID if supported, but not if a vlan with + * the same ID is registered on the host OS (let 8021q kill it) + */ if ((adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && !(adapter->vlgrp && vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); - /* If AMT is enabled, let the firmware know that the network - * interface is now closed */ + /* + * If AMT is enabled, let the firmware know that the network + * interface is now closed + */ if ((adapter->flags & FLAG_HAS_AMT) && e1000e_check_mng_mode(&adapter->hw)) e1000_release_hw_control(adapter); @@ -2375,12 +2443,14 @@ static int e1000_set_mac(struct net_device *netdev, void *p) /* activate the work around */ e1000e_set_laa_state_82571(&adapter->hw, 1); - /* Hold a copy of the LAA in RAR[14] This is done so that + /* + * Hold a copy of the LAA in RAR[14] This is done so that * between the time RAR[0] gets clobbered and the time it * gets fixed (in e1000_watchdog), the actual LAA is in one * of the RARs and no incoming packets directed to this port * are dropped. Eventually the LAA will be in RAR[0] and - * RAR[14] */ + * RAR[14] + */ e1000e_rar_set(&adapter->hw, adapter->hw.mac.addr, adapter->hw.mac.rar_entry_count - 1); @@ -2389,8 +2459,10 @@ static int e1000_set_mac(struct net_device *netdev, void *p) return 0; } -/* Need to wait a few seconds after link up to get diagnostic information from - * the phy */ +/* + * Need to wait a few seconds after link up to get diagnostic information from + * the phy + */ static void e1000_update_phy_info(unsigned long data) { struct e1000_adapter *adapter = (struct e1000_adapter *) data; @@ -2421,7 +2493,8 @@ void e1000e_update_stats(struct e1000_adapter *adapter) spin_lock_irqsave(&adapter->stats_lock, irq_flags); - /* these counters are modified from e1000_adjust_tbi_stats, + /* + * these counters are modified from e1000_adjust_tbi_stats, * called from the interrupt context, so they must only * be written while holding adapter->stats_lock */ @@ -2515,8 +2588,10 @@ void e1000e_update_stats(struct e1000_adapter *adapter) /* Rx Errors */ - /* RLEC on some newer hardware can be incorrect so build - * our own version based on RUC and ROC */ + /* + * RLEC on some newer hardware can be incorrect so build + * our own version based on RUC and ROC + */ adapter->net_stats.rx_errors = adapter->stats.rxerrc + adapter->stats.crcerrs + adapter->stats.algnerrc + adapter->stats.ruc + adapter->stats.roc + @@ -2628,8 +2703,10 @@ static void e1000_watchdog_task(struct work_struct *work) &adapter->link_speed, &adapter->link_duplex); e1000_print_link_info(adapter); - /* tweak tx_queue_len according to speed/duplex - * and adjust the timeout factor */ + /* + * tweak tx_queue_len according to speed/duplex + * and adjust the timeout factor + */ netdev->tx_queue_len = adapter->tx_queue_len; adapter->tx_timeout_factor = 1; switch (adapter->link_speed) { @@ -2645,8 +2722,10 @@ static void e1000_watchdog_task(struct work_struct *work) break; } - /* workaround: re-program speed mode bit after - * link-up event */ + /* + * workaround: re-program speed mode bit after + * link-up event + */ if ((adapter->flags & FLAG_TARC_SPEED_MODE_BIT) && !txb2b) { u32 tarc0; @@ -2655,8 +2734,10 @@ static void e1000_watchdog_task(struct work_struct *work) ew32(TARC0, tarc0); } - /* disable TSO for pcie and 10/100 speeds, to avoid - * some hardware issues */ + /* + * disable TSO for pcie and 10/100 speeds, to avoid + * some hardware issues + */ if (!(adapter->flags & FLAG_TSO_FORCE)) { switch (adapter->link_speed) { case SPEED_10: @@ -2676,8 +2757,10 @@ static void e1000_watchdog_task(struct work_struct *work) } } - /* enable transmits in the hardware, need to do this - * after setting TARC0 */ + /* + * enable transmits in the hardware, need to do this + * after setting TARC(0) + */ tctl = er32(TCTL); tctl |= E1000_TCTL_EN; ew32(TCTL, tctl); @@ -2731,23 +2814,27 @@ link_up: tx_pending = (e1000_desc_unused(tx_ring) + 1 < tx_ring->count); if (tx_pending) { - /* We've lost link, so the controller stops DMA, + /* + * We've lost link, so the controller stops DMA, * but we've got queued Tx work that's never going * to get done, so reset controller to flush Tx. - * (Do the reset outside of interrupt context). */ + * (Do the reset outside of interrupt context). + */ adapter->tx_timeout_count++; schedule_work(&adapter->reset_task); } } - /* Cause software interrupt to ensure rx ring is cleaned */ + /* Cause software interrupt to ensure Rx ring is cleaned */ ew32(ICS, E1000_ICS_RXDMT0); /* Force detection of hung controller every watchdog period */ adapter->detect_tx_hung = 1; - /* With 82571 controllers, LAA may be overwritten due to controller - * reset from the other port. Set the appropriate LAA in RAR[0] */ + /* + * With 82571 controllers, LAA may be overwritten due to controller + * reset from the other port. Set the appropriate LAA in RAR[0] + */ if (e1000e_get_laa_state_82571(hw)) e1000e_rar_set(hw, adapter->hw.mac.addr, 0); @@ -3023,16 +3110,20 @@ static void e1000_tx_queue(struct e1000_adapter *adapter, tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd); - /* Force memory writes to complete before letting h/w + /* + * Force memory writes to complete before letting h/w * know there are new descriptors to fetch. (Only * applicable for weak-ordered memory model archs, - * such as IA-64). */ + * such as IA-64). + */ wmb(); tx_ring->next_to_use = i; writel(i, adapter->hw.hw_addr + tx_ring->tail); - /* we need this if more than one processor can write to our tail - * at a time, it synchronizes IO on IA64/Altix systems */ + /* + * we need this if more than one processor can write to our tail + * at a time, it synchronizes IO on IA64/Altix systems + */ mmiowb(); } @@ -3080,13 +3171,17 @@ static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) struct e1000_adapter *adapter = netdev_priv(netdev); netif_stop_queue(netdev); - /* Herbert's original patch had: + /* + * Herbert's original patch had: * smp_mb__after_netif_stop_queue(); - * but since that doesn't exist yet, just open code it. */ + * but since that doesn't exist yet, just open code it. + */ smp_mb(); - /* We need to check again in a case another CPU has just - * made room available. */ + /* + * We need to check again in a case another CPU has just + * made room available. + */ if (e1000_desc_unused(adapter->tx_ring) < size) return -EBUSY; @@ -3133,21 +3228,29 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) } mss = skb_shinfo(skb)->gso_size; - /* The controller does a simple calculation to + /* + * The controller does a simple calculation to * make sure there is enough room in the FIFO before * initiating the DMA for each buffer. The calc is: * 4 = ceil(buffer len/mss). To make sure we don't * overrun the FIFO, adjust the max buffer len if mss - * drops. */ + * drops. + */ if (mss) { u8 hdr_len; max_per_txd = min(mss << 2, max_per_txd); max_txd_pwr = fls(max_per_txd) - 1; - /* TSO Workaround for 82571/2/3 Controllers -- if skb->data - * points to just header, pull a few bytes of payload from - * frags into skb->data */ + /* + * TSO Workaround for 82571/2/3 Controllers -- if skb->data + * points to just header, pull a few bytes of payload from + * frags into skb->data + */ hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + /* + * we do this workaround for ES2LAN, but it is un-necessary, + * avoiding it could save a lot of cycles + */ if (skb->data_len && (hdr_len == len)) { unsigned int pull_size; @@ -3181,8 +3284,10 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) /* Collision - tell upper layer to requeue */ return NETDEV_TX_LOCKED; - /* need: count + 2 desc gap to keep tail from touching - * head, otherwise try next time */ + /* + * need: count + 2 desc gap to keep tail from touching + * head, otherwise try next time + */ if (e1000_maybe_stop_tx(netdev, count + 2)) { spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags); return NETDEV_TX_BUSY; @@ -3207,9 +3312,11 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) else if (e1000_tx_csum(adapter, skb)) tx_flags |= E1000_TX_FLAGS_CSUM; - /* Old method was to assume IPv4 packet by default if TSO was enabled. + /* + * Old method was to assume IPv4 packet by default if TSO was enabled. * 82571 hardware supports TSO capabilities for IPv6 as well... - * no longer assume, we must. */ + * no longer assume, we must. + */ if (skb->protocol == htons(ETH_P_IP)) tx_flags |= E1000_TX_FLAGS_IPV4; @@ -3311,10 +3418,12 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) if (netif_running(netdev)) e1000e_down(adapter); - /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN + /* + * NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN * means we reserve 2 more, this pushes us to allocate from the next * larger slab size. - * i.e. RXBUFFER_2048 --> size-4096 slab */ + * i.e. RXBUFFER_2048 --> size-4096 slab + */ if (max_frame <= 256) adapter->rx_buffer_len = 256; @@ -3331,7 +3440,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) || (max_frame == ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN)) adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN - + ETH_FCS_LEN ; + + ETH_FCS_LEN; ndev_info(netdev, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); @@ -3467,8 +3576,10 @@ static int e1000_suspend(struct pci_dev *pdev, pm_message_t state) if (adapter->hw.phy.type == e1000_phy_igp_3) e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw); - /* Release control of h/w to f/w. If f/w is AMT enabled, this - * would have already happened in close and is redundant. */ + /* + * Release control of h/w to f/w. If f/w is AMT enabled, this + * would have already happened in close and is redundant. + */ e1000_release_hw_control(adapter); pci_disable_device(pdev); @@ -3543,9 +3654,11 @@ static int e1000_resume(struct pci_dev *pdev) netif_device_attach(netdev); - /* If the controller has AMT, do not set DRV_LOAD until the interface + /* + * If the controller has AMT, do not set DRV_LOAD until the interface * is up. For all other cases, let the f/w know that the h/w is now - * under the control of the driver. */ + * under the control of the driver. + */ if (!(adapter->flags & FLAG_HAS_AMT) || !e1000e_check_mng_mode(&adapter->hw)) e1000_get_hw_control(adapter); @@ -3656,9 +3769,11 @@ static void e1000_io_resume(struct pci_dev *pdev) netif_device_attach(netdev); - /* If the controller has AMT, do not set DRV_LOAD until the interface + /* + * If the controller has AMT, do not set DRV_LOAD until the interface * is up. For all other cases, let the f/w know that the h/w is now - * under the control of the driver. */ + * under the control of the driver. + */ if (!(adapter->flags & FLAG_HAS_AMT) || !e1000e_check_mng_mode(&adapter->hw)) e1000_get_hw_control(adapter); @@ -3852,15 +3967,19 @@ static int __devinit e1000_probe(struct pci_dev *pdev, if (pci_using_dac) netdev->features |= NETIF_F_HIGHDMA; - /* We should not be using LLTX anymore, but we are still TX faster with - * it. */ + /* + * We should not be using LLTX anymore, but we are still Tx faster with + * it. + */ netdev->features |= NETIF_F_LLTX; if (e1000e_enable_mng_pass_thru(&adapter->hw)) adapter->flags |= FLAG_MNG_PT_ENABLED; - /* before reading the NVM, reset the controller to - * put the device in a known good starting state */ + /* + * before reading the NVM, reset the controller to + * put the device in a known good starting state + */ adapter->hw.mac.ops.reset_hw(&adapter->hw); /* @@ -3954,9 +4073,11 @@ static int __devinit e1000_probe(struct pci_dev *pdev, /* reset the hardware with the new settings */ e1000e_reset(adapter); - /* If the controller has AMT, do not set DRV_LOAD until the interface + /* + * If the controller has AMT, do not set DRV_LOAD until the interface * is up. For all other cases, let the f/w know that the h/w is now - * under the control of the driver. */ + * under the control of the driver. + */ if (!(adapter->flags & FLAG_HAS_AMT) || !e1000e_check_mng_mode(&adapter->hw)) e1000_get_hw_control(adapter); @@ -4013,16 +4134,20 @@ static void __devexit e1000_remove(struct pci_dev *pdev) struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev_priv(netdev); - /* flush_scheduled work may reschedule our watchdog task, so - * explicitly disable watchdog tasks from being rescheduled */ + /* + * flush_scheduled work may reschedule our watchdog task, so + * explicitly disable watchdog tasks from being rescheduled + */ set_bit(__E1000_DOWN, &adapter->state); del_timer_sync(&adapter->watchdog_timer); del_timer_sync(&adapter->phy_info_timer); flush_scheduled_work(); - /* Release control of h/w to f/w. If f/w is AMT enabled, this - * would have already happened in close and is redundant. */ + /* + * Release control of h/w to f/w. If f/w is AMT enabled, this + * would have already happened in close and is redundant. + */ e1000_release_hw_control(adapter); unregister_netdev(netdev); @@ -4060,13 +4185,16 @@ static struct pci_device_id e1000_pci_tbl[] = { { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES_DUAL), board_82571 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES_QUAD), board_82571 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82571PT_QUAD_COPPER), board_82571 }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI), board_82572 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_COPPER), board_82572 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_FIBER), board_82572 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_SERDES), board_82572 }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E), board_82573 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E_IAMT), board_82573 }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_82573L), board_82573 }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT), board_80003es2lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_SPT), @@ -4075,6 +4203,7 @@ static struct pci_device_id e1000_pci_tbl[] = { board_80003es2lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_SERDES_SPT), board_80003es2lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_G), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_GT), board_ich8lan }, @@ -4082,6 +4211,7 @@ static struct pci_device_id e1000_pci_tbl[] = { { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_C), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M_AMT), board_ich8lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE), board_ich9lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_G), board_ich9lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_GT), board_ich9lan }, @@ -4099,7 +4229,7 @@ static struct pci_driver e1000_driver = { .probe = e1000_probe, .remove = __devexit_p(e1000_remove), #ifdef CONFIG_PM - /* Power Managment Hooks */ + /* Power Management Hooks */ .suspend = e1000_suspend, .resume = e1000_resume, #endif @@ -4118,7 +4248,7 @@ static int __init e1000_init_module(void) int ret; printk(KERN_INFO "%s: Intel(R) PRO/1000 Network Driver - %s\n", e1000e_driver_name, e1000e_driver_version); - printk(KERN_INFO "%s: Copyright (c) 1999-2007 Intel Corporation.\n", + printk(KERN_INFO "%s: Copyright (c) 1999-2008 Intel Corporation.\n", e1000e_driver_name); ret = pci_register_driver(&e1000_driver); diff --git a/drivers/net/e1000e/param.c b/drivers/net/e1000e/param.c index df266c32ac4b..a66b92efcf80 100644 --- a/drivers/net/e1000e/param.c +++ b/drivers/net/e1000e/param.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -30,7 +30,8 @@ #include "e1000.h" -/* This is the only thing that needs to be changed to adjust the +/* + * This is the only thing that needs to be changed to adjust the * maximum number of ports that the driver can manage. */ @@ -46,7 +47,8 @@ module_param(copybreak, uint, 0644); MODULE_PARM_DESC(copybreak, "Maximum size of packet that is copied to a new buffer on receive"); -/* All parameters are treated the same, as an integer array of values. +/* + * All parameters are treated the same, as an integer array of values. * This macro just reduces the need to repeat the same declaration code * over and over (plus this helps to avoid typo bugs). */ @@ -60,8 +62,9 @@ MODULE_PARM_DESC(copybreak, MODULE_PARM_DESC(X, desc); -/* Transmit Interrupt Delay in units of 1.024 microseconds - * Tx interrupt delay needs to typically be set to something non zero +/* + * Transmit Interrupt Delay in units of 1.024 microseconds + * Tx interrupt delay needs to typically be set to something non zero * * Valid Range: 0-65535 */ @@ -70,7 +73,8 @@ E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); #define MAX_TXDELAY 0xFFFF #define MIN_TXDELAY 0 -/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds +/* + * Transmit Absolute Interrupt Delay in units of 1.024 microseconds * * Valid Range: 0-65535 */ @@ -79,8 +83,9 @@ E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); #define MAX_TXABSDELAY 0xFFFF #define MIN_TXABSDELAY 0 -/* Receive Interrupt Delay in units of 1.024 microseconds - * hardware will likely hang if you set this to anything but zero. +/* + * Receive Interrupt Delay in units of 1.024 microseconds + * hardware will likely hang if you set this to anything but zero. * * Valid Range: 0-65535 */ @@ -89,7 +94,8 @@ E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); #define MAX_RXDELAY 0xFFFF #define MIN_RXDELAY 0 -/* Receive Absolute Interrupt Delay in units of 1.024 microseconds +/* + * Receive Absolute Interrupt Delay in units of 1.024 microseconds * * Valid Range: 0-65535 */ @@ -98,7 +104,8 @@ E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); #define MAX_RXABSDELAY 0xFFFF #define MIN_RXABSDELAY 0 -/* Interrupt Throttle Rate (interrupts/sec) +/* + * Interrupt Throttle Rate (interrupts/sec) * * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) */ @@ -107,7 +114,8 @@ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); #define MAX_ITR 100000 #define MIN_ITR 100 -/* Enable Smart Power Down of the PHY +/* + * Enable Smart Power Down of the PHY * * Valid Range: 0, 1 * @@ -115,7 +123,8 @@ E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); */ E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); -/* Enable Kumeran Lock Loss workaround +/* + * Enable Kumeran Lock Loss workaround * * Valid Range: 0, 1 * diff --git a/drivers/net/e1000e/phy.c b/drivers/net/e1000e/phy.c index dab3c468a768..a2da1c422354 100644 --- a/drivers/net/e1000e/phy.c +++ b/drivers/net/e1000e/phy.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2007 Intel Corporation. + Copyright(c) 1999 - 2008 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -134,7 +134,8 @@ static s32 e1000_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data) return -E1000_ERR_PARAM; } - /* Set up Op-code, Phy Address, and register offset in the MDI + /* + * Set up Op-code, Phy Address, and register offset in the MDI * Control register. The MAC will take care of interfacing with the * PHY to retrieve the desired data. */ @@ -144,7 +145,11 @@ static s32 e1000_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data) ew32(MDIC, mdic); - /* Poll the ready bit to see if the MDI read completed */ + /* + * Poll the ready bit to see if the MDI read completed + * Increasing the time out as testing showed failures with + * the lower time out + */ for (i = 0; i < 64; i++) { udelay(50); mdic = er32(MDIC); @@ -182,7 +187,8 @@ static s32 e1000_write_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 data) return -E1000_ERR_PARAM; } - /* Set up Op-code, Phy Address, and register offset in the MDI + /* + * Set up Op-code, Phy Address, and register offset in the MDI * Control register. The MAC will take care of interfacing with the * PHY to retrieve the desired data. */ @@ -409,14 +415,15 @@ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw) s32 ret_val; u16 phy_data; - /* Enable CRS on TX. This must be set for half-duplex operation. */ + /* Enable CRS on Tx. This must be set for half-duplex operation. */ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); if (ret_val) return ret_val; phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; - /* Options: + /* + * Options: * MDI/MDI-X = 0 (default) * 0 - Auto for all speeds * 1 - MDI mode @@ -441,7 +448,8 @@ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw) break; } - /* Options: + /* + * Options: * disable_polarity_correction = 0 (default) * Automatic Correction for Reversed Cable Polarity * 0 - Disabled @@ -456,7 +464,8 @@ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw) return ret_val; if (phy->revision < 4) { - /* Force TX_CLK in the Extended PHY Specific Control Register + /* + * Force TX_CLK in the Extended PHY Specific Control Register * to 25MHz clock. */ ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); @@ -543,19 +552,21 @@ s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw) /* set auto-master slave resolution settings */ if (hw->mac.autoneg) { - /* when autonegotiation advertisement is only 1000Mbps then we + /* + * when autonegotiation advertisement is only 1000Mbps then we * should disable SmartSpeed and enable Auto MasterSlave - * resolution as hardware default. */ + * resolution as hardware default. + */ if (phy->autoneg_advertised == ADVERTISE_1000_FULL) { /* Disable SmartSpeed */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; @@ -630,14 +641,16 @@ static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) return ret_val; } - /* Need to parse both autoneg_advertised and fc and set up + /* + * Need to parse both autoneg_advertised and fc and set up * the appropriate PHY registers. First we will parse for * autoneg_advertised software override. Since we can advertise * a plethora of combinations, we need to check each bit * individually. */ - /* First we clear all the 10/100 mb speed bits in the Auto-Neg + /* + * First we clear all the 10/100 mb speed bits in the Auto-Neg * Advertisement Register (Address 4) and the 1000 mb speed bits in * the 1000Base-T Control Register (Address 9). */ @@ -683,7 +696,8 @@ static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; } - /* Check for a software override of the flow control settings, and + /* + * Check for a software override of the flow control settings, and * setup the PHY advertisement registers accordingly. If * auto-negotiation is enabled, then software will have to set the * "PAUSE" bits to the correct value in the Auto-Negotiation @@ -696,38 +710,42 @@ static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) * but not send pause frames). * 2: Tx flow control is enabled (we can send pause frames * but we do not support receiving pause frames). - * 3: Both Rx and TX flow control (symmetric) are enabled. + * 3: Both Rx and Tx flow control (symmetric) are enabled. * other: No software override. The flow control configuration * in the EEPROM is used. */ switch (hw->mac.fc) { case e1000_fc_none: - /* Flow control (RX & TX) is completely disabled by a + /* + * Flow control (Rx & Tx) is completely disabled by a * software over-ride. */ mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); break; case e1000_fc_rx_pause: - /* RX Flow control is enabled, and TX Flow control is + /* + * Rx Flow control is enabled, and Tx Flow control is * disabled, by a software over-ride. - */ - /* Since there really isn't a way to advertise that we are - * capable of RX Pause ONLY, we will advertise that we - * support both symmetric and asymmetric RX PAUSE. Later + * + * Since there really isn't a way to advertise that we are + * capable of Rx Pause ONLY, we will advertise that we + * support both symmetric and asymmetric Rx PAUSE. Later * (in e1000e_config_fc_after_link_up) we will disable the * hw's ability to send PAUSE frames. */ mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); break; case e1000_fc_tx_pause: - /* TX Flow control is enabled, and RX Flow control is + /* + * Tx Flow control is enabled, and Rx Flow control is * disabled, by a software over-ride. */ mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; break; case e1000_fc_full: - /* Flow control (both RX and TX) is enabled by a software + /* + * Flow control (both Rx and Tx) is enabled by a software * over-ride. */ mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); @@ -758,7 +776,7 @@ static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) * Performs initial bounds checking on autoneg advertisement parameter, then * configure to advertise the full capability. Setup the PHY to autoneg * and restart the negotiation process between the link partner. If - * wait_for_link, then wait for autoneg to complete before exiting. + * autoneg_wait_to_complete, then wait for autoneg to complete before exiting. **/ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) { @@ -766,12 +784,14 @@ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) s32 ret_val; u16 phy_ctrl; - /* Perform some bounds checking on the autoneg advertisement + /* + * Perform some bounds checking on the autoneg advertisement * parameter. */ phy->autoneg_advertised &= phy->autoneg_mask; - /* If autoneg_advertised is zero, we assume it was not defaulted + /* + * If autoneg_advertised is zero, we assume it was not defaulted * by the calling code so we set to advertise full capability. */ if (phy->autoneg_advertised == 0) @@ -785,7 +805,8 @@ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) } hw_dbg(hw, "Restarting Auto-Neg\n"); - /* Restart auto-negotiation by setting the Auto Neg Enable bit and + /* + * Restart auto-negotiation by setting the Auto Neg Enable bit and * the Auto Neg Restart bit in the PHY control register. */ ret_val = e1e_rphy(hw, PHY_CONTROL, &phy_ctrl); @@ -797,7 +818,8 @@ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Does the user want to wait for Auto-Neg to complete here, or + /* + * Does the user want to wait for Auto-Neg to complete here, or * check at a later time (for example, callback routine). */ if (phy->wait_for_link) { @@ -829,14 +851,18 @@ s32 e1000e_setup_copper_link(struct e1000_hw *hw) bool link; if (hw->mac.autoneg) { - /* Setup autoneg and flow control advertisement and perform - * autonegotiation. */ + /* + * Setup autoneg and flow control advertisement and perform + * autonegotiation. + */ ret_val = e1000_copper_link_autoneg(hw); if (ret_val) return ret_val; } else { - /* PHY will be set to 10H, 10F, 100H or 100F - * depending on user settings. */ + /* + * PHY will be set to 10H, 10F, 100H or 100F + * depending on user settings. + */ hw_dbg(hw, "Forcing Speed and Duplex\n"); ret_val = e1000_phy_force_speed_duplex(hw); if (ret_val) { @@ -845,7 +871,8 @@ s32 e1000e_setup_copper_link(struct e1000_hw *hw) } } - /* Check link status. Wait up to 100 microseconds for link to become + /* + * Check link status. Wait up to 100 microseconds for link to become * valid. */ ret_val = e1000e_phy_has_link_generic(hw, @@ -891,7 +918,8 @@ s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Clear Auto-Crossover to force MDI manually. IGP requires MDI + /* + * Clear Auto-Crossover to force MDI manually. IGP requires MDI * forced whenever speed and duplex are forced. */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); @@ -941,7 +969,7 @@ s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw) * Calls the PHY setup function to force speed and duplex. Clears the * auto-crossover to force MDI manually. Resets the PHY to commit the * changes. If time expires while waiting for link up, we reset the DSP. - * After reset, TX_CLK and CRS on TX must be set. Return successful upon + * After reset, TX_CLK and CRS on Tx must be set. Return successful upon * successful completion, else return corresponding error code. **/ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw) @@ -951,7 +979,8 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw) u16 phy_data; bool link; - /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI + /* + * Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI * forced whenever speed and duplex are forced. */ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); @@ -989,10 +1018,12 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw) return ret_val; if (!link) { - /* We didn't get link. + /* + * We didn't get link. * Reset the DSP and cross our fingers. */ - ret_val = e1e_wphy(hw, M88E1000_PHY_PAGE_SELECT, 0x001d); + ret_val = e1e_wphy(hw, M88E1000_PHY_PAGE_SELECT, + 0x001d); if (ret_val) return ret_val; ret_val = e1000e_phy_reset_dsp(hw); @@ -1011,7 +1042,8 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Resetting the phy means we need to re-force TX_CLK in the + /* + * Resetting the phy means we need to re-force TX_CLK in the * Extended PHY Specific Control Register to 25MHz clock from * the reset value of 2.5MHz. */ @@ -1020,7 +1052,8 @@ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw) if (ret_val) return ret_val; - /* In addition, we must re-enable CRS on Tx for both half and full + /* + * In addition, we must re-enable CRS on Tx for both half and full * duplex. */ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); @@ -1124,30 +1157,32 @@ s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active) data); if (ret_val) return ret_val; - /* LPLU and SmartSpeed are mutually exclusive. LPLU is used + /* + * LPLU and SmartSpeed are mutually exclusive. LPLU is used * during Dx states where the power conservation is most * important. During driver activity we should enable - * SmartSpeed, so performance is maintained. */ + * SmartSpeed, so performance is maintained. + */ if (phy->smart_speed == e1000_smart_speed_on) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data |= IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; } else if (phy->smart_speed == e1000_smart_speed_off) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, - &data); + &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, - data); + data); if (ret_val) return ret_val; } @@ -1249,8 +1284,10 @@ static s32 e1000_check_polarity_igp(struct e1000_hw *hw) s32 ret_val; u16 data, offset, mask; - /* Polarity is determined based on the speed of - * our connection. */ + /* + * Polarity is determined based on the speed of + * our connection. + */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_STATUS, &data); if (ret_val) return ret_val; @@ -1260,7 +1297,8 @@ static s32 e1000_check_polarity_igp(struct e1000_hw *hw) offset = IGP01E1000_PHY_PCS_INIT_REG; mask = IGP01E1000_PHY_POLARITY_MASK; } else { - /* This really only applies to 10Mbps since + /* + * This really only applies to 10Mbps since * there is no polarity for 100Mbps (always 0). */ offset = IGP01E1000_PHY_PORT_STATUS; @@ -1278,7 +1316,7 @@ static s32 e1000_check_polarity_igp(struct e1000_hw *hw) } /** - * e1000_wait_autoneg - Wait for auto-neg compeletion + * e1000_wait_autoneg - Wait for auto-neg completion * @hw: pointer to the HW structure * * Waits for auto-negotiation to complete or for the auto-negotiation time @@ -1302,7 +1340,8 @@ static s32 e1000_wait_autoneg(struct e1000_hw *hw) msleep(100); } - /* PHY_AUTO_NEG_TIME expiration doesn't guarantee auto-negotiation + /* + * PHY_AUTO_NEG_TIME expiration doesn't guarantee auto-negotiation * has completed. */ return ret_val; @@ -1324,7 +1363,8 @@ s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations, u16 i, phy_status; for (i = 0; i < iterations; i++) { - /* Some PHYs require the PHY_STATUS register to be read + /* + * Some PHYs require the PHY_STATUS register to be read * twice due to the link bit being sticky. No harm doing * it across the board. */ @@ -1412,10 +1452,12 @@ s32 e1000e_get_cable_length_igp_2(struct e1000_hw *hw) if (ret_val) return ret_val; - /* Getting bits 15:9, which represent the combination of + /* + * Getting bits 15:9, which represent the combination of * course and fine gain values. The result is a number * that can be put into the lookup table to obtain the - * approximate cable length. */ + * approximate cable length. + */ cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & IGP02E1000_AGC_LENGTH_MASK; |
