/* $OpenBSD: if_nxe.c,v 1.73 2016/04/13 10:34:32 mpi Exp $ */ /* * Copyright (c) 2007 David Gwynne * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include #ifdef NXE_DEBUG int nxedebug = 0; #define DPRINTF(l, f...) do { if (nxedebug & (l)) printf(f); } while (0) #define DASSERT(_a) assert(_a) #else #define DPRINTF(l, f...) #define DASSERT(_a) #endif /* this driver likes firmwares around this version */ #define NXE_VERSION_MAJOR 3 #define NXE_VERSION_MINOR 4 #define NXE_VERSION_BUILD 31 #define NXE_VERSION \ ((NXE_VERSION_MAJOR << 16)|(NXE_VERSION_MINOR << 8)|(NXE_VERSION_BUILD)) /* * PCI configuration space registers */ #define NXE_PCI_BAR_MEM 0x10 /* bar 0 */ #define NXE_PCI_BAR_MEM_128MB (128 * 1024 * 1024) #define NXE_PCI_BAR_DOORBELL 0x20 /* bar 4 */ /* * doorbell register space */ #define NXE_DB 0x00000000 #define NXE_DB_PEGID 0x00000003 #define NXE_DB_PEGID_RX 0x00000001 /* rx unit */ #define NXE_DB_PEGID_TX 0x00000002 /* tx unit */ #define NXE_DB_PRIVID 0x00000004 /* must be set */ #define NXE_DB_COUNT(_c) ((_c)<<3) /* count */ #define NXE_DB_CTXID(_c) ((_c)<<18) /* context id */ #define NXE_DB_OPCODE_RX_PROD 0x00000000 #define NXE_DB_OPCODE_RX_JUMBO_PROD 0x10000000 #define NXE_DB_OPCODE_RX_LRO_PROD 0x20000000 #define NXE_DB_OPCODE_CMD_PROD 0x30000000 #define NXE_DB_OPCODE_UPD_CONS 0x40000000 #define NXE_DB_OPCODE_RESET_CTX 0x50000000 /* * register space */ /* different PCI functions use different registers sometimes */ #define _F(_f) ((_f) * 0x20) /* * driver ref section 4.2 * * All the hardware registers are mapped in memory. Apart from the registers * for the individual hardware blocks, the memory map includes a large number * of software definable registers. * * The following table gives the memory map in the PCI address space. */ #define NXE_MAP_DDR_NET 0x00000000 #define NXE_MAP_DDR_MD 0x02000000 #define NXE_MAP_QDR_NET 0x04000000 #define NXE_MAP_DIRECT_CRB 0x04400000 #define NXE_MAP_OCM0 0x05000000 #define NXE_MAP_OCM1 0x05100000 #define NXE_MAP_CRB 0x06000000 /* * Since there are a large number of registers they do not fit in a single * PCI addressing range. Hence two windows are defined. The window starts at * NXE_MAP_CRB, and extends to the end of the register map. The window is set * using the NXE_REG_WINDOW_CRB register. The format of the NXE_REG_WINDOW_CRB * register is as follows: */ #define NXE_WIN_CRB(_f) (0x06110210 + _F(_f)) #define NXE_WIN_CRB_0 (0<<25) #define NXE_WIN_CRB_1 (1<<25) /* * The memory map inside the register windows are divided into a set of blocks. * Each register block is owned by one hardware agent. The following table * gives the memory map of the various register blocks in window 0. These * registers are all in the CRB register space, so the offsets given here are * relative to the base of the CRB offset region (NXE_MAP_CRB). */ #define NXE_W0_PCIE 0x00100000 /* PCI Express */ #define NXE_W0_NIU 0x00600000 /* Network Interface Unit */ #define NXE_W0_PPE_0 0x01100000 /* Protocol Processing Engine 0 */ #define NXE_W0_PPE_1 0x01200000 /* Protocol Processing Engine 1 */ #define NXE_W0_PPE_2 0x01300000 /* Protocol Processing Engine 2 */ #define NXE_W0_PPE_3 0x01400000 /* Protocol Processing Engine 3 */ #define NXE_W0_PPE_D 0x01500000 /* PPE D-cache */ #define NXE_W0_PPE_I 0x01600000 /* PPE I-cache */ /* * These are the register blocks inside window 1. */ #define NXE_W1_PCIE 0x00100000 #define NXE_W1_SW 0x00200000 #define NXE_W1_SIR 0x01200000 #define NXE_W1_ROMUSB 0x01300000 /* * Global registers */ #define NXE_BOOTLD_START 0x00010000 /* * driver ref section 5 * * CRB Window Register Descriptions */ /* * PCI Express Registers * * Despite being in the CRB window space, they can be accessed via both * windows. This means they are accessable "globally" without going relative * to the start of the CRB window space. */ /* Interrupts */ #define NXE_ISR_VECTOR 0x06110100 /* Interrupt Vector */ #define NXE_ISR_MASK 0x06110104 /* Interrupt Mask */ #define NXE_ISR_TARGET_STATUS 0x06110118 #define NXE_ISR_TARGET_MASK 0x06110128 #define NXE_ISR_MINE(_f) (0x08 << (_f)) /* lock registers (semaphores between chipset and driver) */ #define NXE_SEM_ROM_LOCK 0x0611c010 /* ROM access lock */ #define NXE_SEM_ROM_UNLOCK 0x0611c014 #define NXE_SEM_PHY_LOCK 0x0611c018 /* PHY access lock */ #define NXE_SEM_PHY_UNLOCK 0x0611c01c #define NXE_SEM_DONE 0x1 /* * Network Interface Unit (NIU) Registers */ #define NXE_0_NIU_MODE 0x00600000 #define NXE_0_NIU_MODE_XGE (1<<2) /* XGE interface enabled */ #define NXE_0_NIU_MODE_GBE (1<<1) /* 4 GbE interfaces enabled */ #define NXE_0_NIU_SINGLE_TERM 0x00600004 #define NXE_0_NIU_INT_MASK 0x00600040 #define NXE_0_NIU_RESET_XG 0x0060001c /* reset XG */ #define NXE_0_NIU_RESET_FIFO 0x00600088 /* reset sys fifos */ #define _P(_p) ((_p) * 0x10000) #define NXE_0_XG_CFG0(_p) (0x00670000 + _P(_p)) #define NXE_0_XG_CFG0_TX_EN (1<<0) /* TX enable */ #define NXE_0_XG_CFG0_TX_SYNC (1<<1) /* TX synced */ #define NXE_0_XG_CFG0_RX_EN (1<<2) /* RX enable */ #define NXE_0_XG_CFG0_RX_SYNC (1<<3) /* RX synced */ #define NXE_0_XG_CFG0_TX_FLOWCTL (1<<4) /* enable pause frame gen */ #define NXE_0_XG_CFG0_RX_FLOWCTL (1<<5) /* act on rxed pause frames */ #define NXE_0_XG_CFG0_LOOPBACK (1<<8) /* tx appears on rx */ #define NXE_0_XG_CFG0_TX_RST_PB (1<<15) /* reset frm tx proto block */ #define NXE_0_XG_CFG0_RX_RST_PB (1<<16) /* reset frm rx proto block */ #define NXE_0_XG_CFG0_TX_RST_MAC (1<<17) /* reset frm tx multiplexer */ #define NXE_0_XG_CFG0_RX_RST_MAC (1<<18) /* reset ctl frms and timers */ #define NXE_0_XG_CFG0_SOFT_RST (1<<31) /* soft reset */ #define NXE_0_XG_CFG1(_p) (0x00670004 + _P(_p)) #define NXE_0_XG_CFG1_REM_CRC (1<<0) /* enable crc removal */ #define NXE_0_XG_CFG1_CRC_EN (1<<1) /* append crc to tx frames */ #define NXE_0_XG_CFG1_NO_MAX (1<<5) /* rx all frames despite size */ #define NXE_0_XG_CFG1_WIRE_LO_ERR (1<<6) /* recognize local err */ #define NXE_0_XG_CFG1_PAUSE_FR_DIS (1<<8) /* disable pause frame detect */ #define NXE_0_XG_CFG1_SEQ_ERR_EN (1<<10) /* enable seq err detection */ #define NXE_0_XG_CFG1_MULTICAST (1<<12) /* accept all multicast */ #define NXE_0_XG_CFG1_PROMISC (1<<13) /* accept all frames */ #define NXE_0_XG_IPG(_p) (0x00670008 + _P(_p)) #define NXE_0_XG_MAC_LO(_p) (0x00670010 + _P(_p)) #define NXE_0_XG_MAC_HI(_p) (0x0067000c + _P(_p)) #define NXE_0_XG_STATUS(_p) (0x00670018 + _P(_p)) #define NXE_0_XG_MTU(_p) (0x0067001c + _P(_p)) #define NXE_0_XG_PAUSE_FRM(_p) (0x00670020 + _P(_p)) #define NXE_0_XG_TX_BYTES(_p) (0x00670024 + _P(_p)) #define NXE_0_XG_TX_PKTS(_p) (0x00670028 + _P(_p)) #define NXE_0_XG_RX_BYTES(_p) (0x0067002c + _P(_p)) #define NXE_0_XG_RX_PKTS(_p) (0x00670030 + _P(_p)) #define NXE_0_XG_AGGR_ERRS(_p) (0x00670034 + _P(_p)) #define NXE_0_XG_MCAST_PKTS(_p) (0x00670038 + _P(_p)) #define NXE_0_XG_UCAST_PKTS(_p) (0x0067003c + _P(_p)) #define NXE_0_XG_CRC_ERRS(_p) (0x00670040 + _P(_p)) #define NXE_0_XG_OVERSIZE(_p) (0x00670044 + _P(_p)) #define NXE_0_XG_UNDERSIZE(_p) (0x00670048 + _P(_p)) #define NXE_0_XG_LOCAL_ERRS(_p) (0x0067004c + _P(_p)) #define NXE_0_XG_REMOTE_ERRS(_p) (0x00670050 + _P(_p)) #define NXE_0_XG_CNTL_CHARS(_p) (0x00670054 + _P(_p)) #define NXE_0_XG_PAUSE_PKTS(_p) (0x00670058 + _P(_p)) /* * Software Defined Registers */ /* chipset state registers */ #define NXE_1_SW_ROM_LOCK_ID 0x00202100 #define NXE_1_SW_ROM_LOCK_ID_DRV 0x0d417340 #define NXE_1_SW_PHY_LOCK_ID 0x00202120 #define NXE_1_SW_PHY_LOCK_ID_DRV 0x44524956 /* firmware version */ #define NXE_1_SW_FWVER_MAJOR 0x00202150 /* Major f/w version */ #define NXE_1_SW_FWVER_MINOR 0x00202154 /* Minor f/w version */ #define NXE_1_SW_FWVER_BUILD 0x00202158 /* Build/Sub f/w version */ /* misc */ #define NXE_1_SW_CMD_ADDR_HI 0x00202218 /* cmd ring phys addr */ #define NXE_1_SW_CMD_ADDR_LO 0x0020221c /* cmd ring phys addr */ #define NXE_1_SW_CMD_SIZE 0x002022c8 /* entries in the cmd ring */ #define NXE_1_SW_DUMMY_ADDR_HI 0x0020223c /* hi address of dummy buf */ #define NXE_1_SW_DUMMY_ADDR_LO 0x00202240 /* lo address of dummy buf */ #define NXE_1_SW_DUMMY_ADDR_LEN 1024 static const u_int32_t nxe_regmap[][4] = { #define NXE_1_SW_CMD_PRODUCER(_f) (nxe_regmap[0][(_f)]) { 0x00202208, 0x002023ac, 0x002023b8, 0x002023d0 }, #define NXE_1_SW_CMD_CONSUMER(_f) (nxe_regmap[1][(_f)]) { 0x0020220c, 0x002023b0, 0x002023bc, 0x002023d4 }, #define NXE_1_SW_CONTEXT(_p) (nxe_regmap[2][(_p)]) #define NXE_1_SW_CONTEXT_SIG(_p) (0xdee0 | (_p)) { 0x0020238c, 0x00202390, 0x0020239c, 0x002023a4 }, #define NXE_1_SW_CONTEXT_ADDR_LO(_p) (nxe_regmap[3][(_p)]) { 0x00202388, 0x00202390, 0x00202398, 0x002023a0 }, #define NXE_1_SW_CONTEXT_ADDR_HI(_p) (nxe_regmap[4][(_p)]) { 0x002023c0, 0x002023c4, 0x002023c8, 0x002023cc }, #define NXE_1_SW_INT_MASK(_p) (nxe_regmap[5][(_p)]) { 0x002023d8, 0x002023e0, 0x002023e4, 0x002023e8 }, #define NXE_1_SW_RX_PRODUCER(_c) (nxe_regmap[6][(_c)]) { 0x00202300, 0x00202344, 0x002023d8, 0x0020242c }, #define NXE_1_SW_RX_CONSUMER(_c) (nxe_regmap[7][(_c)]) { 0x00202304, 0x00202348, 0x002023dc, 0x00202430 }, #define NXE_1_SW_RX_RING(_c) (nxe_regmap[8][(_c)]) { 0x00202308, 0x0020234c, 0x002023f0, 0x00202434 }, #define NXE_1_SW_RX_SIZE(_c) (nxe_regmap[9][(_c)]) { 0x0020230c, 0x00202350, 0x002023f4, 0x00202438 }, #define NXE_1_SW_RX_JUMBO_PRODUCER(_c) (nxe_regmap[10][(_c)]) { 0x00202310, 0x00202354, 0x002023f8, 0x0020243c }, #define NXE_1_SW_RX_JUMBO_CONSUMER(_c) (nxe_regmap[11][(_c)]) { 0x00202314, 0x00202358, 0x002023fc, 0x00202440 }, #define NXE_1_SW_RX_JUMBO_RING(_c) (nxe_regmap[12][(_c)]) { 0x00202318, 0x0020235c, 0x00202400, 0x00202444 }, #define NXE_1_SW_RX_JUMBO_SIZE(_c) (nxe_regmap[13][(_c)]) { 0x0020231c, 0x00202360, 0x00202404, 0x00202448 }, #define NXE_1_SW_RX_LRO_PRODUCER(_c) (nxe_regmap[14][(_c)]) { 0x00202320, 0x00202364, 0x00202408, 0x0020244c }, #define NXE_1_SW_RX_LRO_CONSUMER(_c) (nxe_regmap[15][(_c)]) { 0x00202324, 0x00202368, 0x0020240c, 0x00202450 }, #define NXE_1_SW_RX_LRO_RING(_c) (nxe_regmap[16][(_c)]) { 0x00202328, 0x0020236c, 0x00202410, 0x00202454 }, #define NXE_1_SW_RX_LRO_SIZE(_c) (nxe_regmap[17][(_c)]) { 0x0020232c, 0x00202370, 0x00202414, 0x00202458 }, #define NXE_1_SW_STATUS_RING(_c) (nxe_regmap[18][(_c)]) { 0x00202330, 0x00202374, 0x00202418, 0x0020245c }, #define NXE_1_SW_STATUS_PRODUCER(_c) (nxe_regmap[19][(_c)]) { 0x00202334, 0x00202378, 0x0020241c, 0x00202460 }, #define NXE_1_SW_STATUS_CONSUMER(_c) (nxe_regmap[20][(_c)]) { 0x00202338, 0x0020237c, 0x00202420, 0x00202464 }, #define NXE_1_SW_STATUS_STATE(_c) (nxe_regmap[21][(_c)]) #define NXE_1_SW_STATUS_STATE_READY 0x0000ff01 { 0x0020233c, 0x00202380, 0x00202424, 0x00202468 }, #define NXE_1_SW_STATUS_SIZE(_c) (nxe_regmap[22][(_c)]) { 0x00202340, 0x00202384, 0x00202428, 0x0020246c } }; #define NXE_1_SW_BOOTLD_CONFIG 0x002021fc #define NXE_1_SW_BOOTLD_CONFIG_ROM 0x00000000 #define NXE_1_SW_BOOTLD_CONFIG_RAM 0x12345678 #define NXE_1_SW_CMDPEG_STATE 0x00202250 /* init status */ #define NXE_1_SW_CMDPEG_STATE_START 0xff00 /* init starting */ #define NXE_1_SW_CMDPEG_STATE_DONE 0xff01 /* init complete */ #define NXE_1_SW_CMDPEG_STATE_ACK 0xf00f /* init ack */ #define NXE_1_SW_CMDPEG_STATE_ERROR 0xffff /* init failed */ #define NXE_1_SW_XG_STATE 0x00202294 /* phy state */ #define NXE_1_SW_XG_STATE_PORT(_r, _p) (((_r)>>8*(_p))&0xff) #define NXE_1_SW_XG_STATE_UP (1<<4) #define NXE_1_SW_XG_STATE_DOWN (1<<5) #define NXE_1_SW_MPORT_MODE 0x002022c4 #define NXE_1_SW_MPORT_MODE_SINGLE 0x1111 #define NXE_1_SW_MPORT_MODE_MULTI 0x2222 #define NXE_1_SW_INT_VECTOR 0x002022d4 #define NXE_1_SW_NIC_CAP_HOST 0x002023a8 /* host capabilities */ #define NXE_1_SW_NIC_CAP_FW 0x002023dc /* firmware capabilities */ #define NXE_1_SW_NIC_CAP_PORTINTR 0x1 /* per port interrupts */ #define NXE_1_SW_DRIVER_VER 0x002024a0 /* host driver version */ #define NXE_1_SW_TEMP 0x002023b4 /* Temperature sensor */ #define NXE_1_SW_TEMP_STATE(_x) ((_x)&0xffff) /* Temp state */ #define NXE_1_SW_TEMP_STATE_NONE 0x0000 #define NXE_1_SW_TEMP_STATE_OK 0x0001 #define NXE_1_SW_TEMP_STATE_WARN 0x0002 #define NXE_1_SW_TEMP_STATE_CRIT 0x0003 #define NXE_1_SW_TEMP_VAL(_x) (((_x)>>16)&0xffff) /* Temp value */ #define NXE_1_SW_V2P(_f) (0x00202490+((_f)*4)) /* virtual to phys */ /* * ROMUSB Registers */ #define NXE_1_ROMUSB_STATUS 0x01300004 /* ROM Status */ #define NXE_1_ROMUSB_STATUS_DONE (1<<1) #define NXE_1_ROMUSB_SW_RESET 0x01300008 #define NXE_1_ROMUSB_SW_RESET_DEF 0xffffffff #define NXE_1_ROMUSB_SW_RESET_BOOT 0x0080000f #define NXE_1_CASPER_RESET 0x01300038 #define NXE_1_CASPER_RESET_ENABLE 0x1 #define NXE_1_CASPER_RESET_DISABLE 0x1 #define NXE_1_GLB_PEGTUNE 0x0130005c /* reset register */ #define NXE_1_GLB_PEGTUNE_DONE 0x00000001 #define NXE_1_GLB_CHIPCLKCTL 0x013000a8 #define NXE_1_GLB_CHIPCLKCTL_ON 0x00003fff /* ROM Registers */ #define NXE_1_ROM_CONTROL 0x01310000 #define NXE_1_ROM_OPCODE 0x01310004 #define NXE_1_ROM_OPCODE_READ 0x0000000b #define NXE_1_ROM_ADDR 0x01310008 #define NXE_1_ROM_WDATA 0x0131000c #define NXE_1_ROM_ABYTE_CNT 0x01310010 #define NXE_1_ROM_DBYTE_CNT 0x01310014 /* dummy byte count */ #define NXE_1_ROM_RDATA 0x01310018 #define NXE_1_ROM_AGT_TAG 0x0131001c #define NXE_1_ROM_TIME_PARM 0x01310020 #define NXE_1_ROM_CLK_DIV 0x01310024 #define NXE_1_ROM_MISS_INSTR 0x01310028 /* * flash memory layout * * These are offsets of memory accessable via the ROM Registers above */ #define NXE_FLASH_CRBINIT 0x00000000 /* crb init section */ #define NXE_FLASH_BRDCFG 0x00004000 /* board config */ #define NXE_FLASH_INITCODE 0x00006000 /* pegtune code */ #define NXE_FLASH_BOOTLD 0x00010000 /* boot loader */ #define NXE_FLASH_IMAGE 0x00043000 /* compressed image */ #define NXE_FLASH_SECONDARY 0x00200000 /* backup image */ #define NXE_FLASH_PXE 0x003d0000 /* pxe image */ #define NXE_FLASH_USER 0x003e8000 /* user region for new boards */ #define NXE_FLASH_VPD 0x003e8c00 /* vendor private data */ #define NXE_FLASH_LICENSE 0x003e9000 /* firmware license */ #define NXE_FLASH_FIXED 0x003f0000 /* backup of crbinit */ /* * misc hardware details */ #define NXE_MAX_PORTS 4 #define NXE_MAX_PORT_LLADDRS 32 #define NXE_MAX_PKTLEN (64 * 1024) /* * hardware structures */ struct nxe_info { u_int32_t ni_hdrver; #define NXE_INFO_HDRVER_1 0x00000001 u_int32_t ni_board_mfg; u_int32_t ni_board_type; #define NXE_BRDTYPE_P1_BD 0x0000 #define NXE_BRDTYPE_P1_SB 0x0001 #define NXE_BRDTYPE_P1_SMAX 0x0002 #define NXE_BRDTYPE_P1_SOCK 0x0003 #define NXE_BRDTYPE_P2_SOCK_31 0x0008 #define NXE_BRDTYPE_P2_SOCK_35 0x0009 #define NXE_BRDTYPE_P2_SB35_4G 0x000a #define NXE_BRDTYPE_P2_SB31_10G 0x000b #define NXE_BRDTYPE_P2_SB31_2G 0x000c #define NXE_BRDTYPE_P2_SB31_10G_IMEZ 0x000d #define NXE_BRDTYPE_P2_SB31_10G_HMEZ 0x000e #define NXE_BRDTYPE_P2_SB31_10G_CX4 0x000f u_int32_t ni_board_num; u_int32_t ni_chip_id; u_int32_t ni_chip_minor; u_int32_t ni_chip_major; u_int32_t ni_chip_pkg; u_int32_t ni_chip_lot; u_int32_t ni_port_mask; u_int32_t ni_peg_mask; u_int32_t ni_icache; u_int32_t ni_dcache; u_int32_t ni_casper; u_int32_t ni_lladdr0_low; u_int32_t ni_lladdr1_low; u_int32_t ni_lladdr2_low; u_int32_t ni_lladdr3_low; u_int32_t ni_mnsync_mode; u_int32_t ni_mnsync_shift_cclk; u_int32_t ni_mnsync_shift_mclk; u_int32_t ni_mnwb_enable; u_int32_t ni_mnfreq_crystal; u_int32_t ni_mnfreq_speed; u_int32_t ni_mnorg; u_int32_t ni_mndepth; u_int32_t ni_mnranks0; u_int32_t ni_mnranks1; u_int32_t ni_mnrd_latency0; u_int32_t ni_mnrd_latency1; u_int32_t ni_mnrd_latency2; u_int32_t ni_mnrd_latency3; u_int32_t ni_mnrd_latency4; u_int32_t ni_mnrd_latency5; u_int32_t ni_mnrd_latency6; u_int32_t ni_mnrd_latency7; u_int32_t ni_mnrd_latency8; u_int32_t ni_mndll[18]; u_int32_t ni_mnddr_mode; u_int32_t ni_mnddr_extmode; u_int32_t ni_mntiming0; u_int32_t ni_mntiming1; u_int32_t ni_mntiming2; u_int32_t ni_snsync_mode; u_int32_t ni_snpt_mode; u_int32_t ni_snecc_enable; u_int32_t ni_snwb_enable; u_int32_t ni_snfreq_crystal; u_int32_t ni_snfreq_speed; u_int32_t ni_snorg; u_int32_t ni_sndepth; u_int32_t ni_sndll; u_int32_t ni_snrd_latency; u_int32_t ni_lladdr0_high; u_int32_t ni_lladdr1_high; u_int32_t ni_lladdr2_high; u_int32_t ni_lladdr3_high; u_int32_t ni_magic; #define NXE_INFO_MAGIC 0x12345678 u_int32_t ni_mnrd_imm; u_int32_t ni_mndll_override; } __packed; struct nxe_imageinfo { u_int32_t nim_bootld_ver; u_int32_t nim_bootld_size; u_int8_t nim_img_ver_major; u_int8_t nim_img_ver_minor; u_int16_t nim_img_ver_build; u_int32_t min_img_size; } __packed; struct nxe_lladdr { u_int8_t pad[2]; u_int8_t lladdr[6]; } __packed; struct nxe_userinfo { u_int8_t nu_flash_md5[1024]; struct nxe_imageinfo nu_imageinfo; u_int32_t nu_primary; u_int32_t nu_secondary; u_int64_t nu_lladdr[NXE_MAX_PORTS][NXE_MAX_PORT_LLADDRS]; u_int32_t nu_subsys_id; u_int8_t nu_serial[32]; u_int32_t nu_bios_ver; } __packed; /* hw structures actually used in the io path */ struct nxe_ctx_ring { u_int64_t r_addr; u_int32_t r_size; u_int32_t r_reserved; }; #define NXE_RING_RX 0 #define NXE_RING_RX_JUMBO 1 #define NXE_RING_RX_LRO 2 #define NXE_NRING 3 struct nxe_ctx { u_int64_t ctx_cmd_consumer_addr; struct nxe_ctx_ring ctx_cmd_ring; struct nxe_ctx_ring ctx_rx_rings[NXE_NRING]; u_int64_t ctx_status_ring_addr; u_int32_t ctx_status_ring_size; u_int32_t ctx_id; } __packed; struct nxe_tx_desc { u_int8_t tx_tcp_offset; u_int8_t tx_ip_offset; u_int16_t tx_flags; #define NXE_TXD_F_OPCODE_TX (0x01 << 7) u_int8_t tx_nbufs; u_int16_t tx_length; /* XXX who makes a 24bit field? */ u_int8_t tx_length_hi; u_int64_t tx_addr_2; u_int16_t tx_id; u_int16_t tx_mss; u_int8_t tx_port; u_int8_t tx_tso_hdr_len; u_int16_t tx_ipsec_id; u_int64_t tx_addr_3; u_int64_t tx_addr_1; u_int16_t tx_slen_1; u_int16_t tx_slen_2; u_int16_t tx_slen_3; u_int16_t tx_slen_4; u_int64_t tx_addr_4; u_int64_t tx_reserved; } __packed; #define NXE_TXD_SEGS 4 #define NXE_TXD_DESCS 8 #define NXE_TXD_MAX_SEGS (NXE_TXD_SEGS * NXE_TXD_DESCS) struct nxe_rx_desc { u_int16_t rx_id; u_int16_t rx_flags; u_int32_t rx_len; /* packet length */ u_int64_t rx_addr; } __packed; #define NXE_RXD_MAX_SEGS 1 struct nxe_status_desc { u_int8_t st_lro; u_int8_t st_owner; u_int16_t st_id; u_int16_t st_len; u_int16_t st_flags; } __packed; /* * driver definitions */ struct nxe_board { u_int32_t brd_type; u_int brd_mode; }; struct nxe_dmamem { bus_dmamap_t ndm_map; bus_dma_segment_t ndm_seg; size_t ndm_size; caddr_t ndm_kva; }; #define NXE_DMA_MAP(_ndm) ((_ndm)->ndm_map) #define NXE_DMA_LEN(_ndm) ((_ndm)->ndm_size) #define NXE_DMA_DVA(_ndm) ((_ndm)->ndm_map->dm_segs[0].ds_addr) #define NXE_DMA_KVA(_ndm) ((void *)(_ndm)->ndm_kva) struct nxe_pkt { int pkt_id; bus_dmamap_t pkt_dmap; struct mbuf *pkt_m; TAILQ_ENTRY(nxe_pkt) pkt_link; }; struct nxe_pkt_list { struct nxe_pkt *npl_pkts; TAILQ_HEAD(, nxe_pkt) npl_free; TAILQ_HEAD(, nxe_pkt) npl_used; }; struct nxe_ring { struct nxe_dmamem *nr_dmamem; u_int8_t *nr_pos; u_int nr_slot; int nr_ready; size_t nr_desclen; u_int nr_nentries; }; /* * autoconf glue */ struct nxe_softc { struct device sc_dev; bus_dma_tag_t sc_dmat; bus_space_tag_t sc_memt; bus_space_handle_t sc_memh; bus_size_t sc_mems; bus_space_handle_t sc_crbh; bus_space_tag_t sc_dbt; bus_space_handle_t sc_dbh; bus_size_t sc_dbs; void *sc_ih; int sc_function; int sc_port; int sc_window; const struct nxe_board *sc_board; u_int sc_fw_major; u_int sc_fw_minor; u_int sc_fw_build; struct arpcom sc_ac; struct ifmedia sc_media; struct nxe_pkt_list *sc_tx_pkts; struct nxe_pkt_list *sc_rx_pkts; /* allocations for the hw */ struct nxe_dmamem *sc_dummy_dma; struct nxe_dmamem *sc_dummy_rx; struct nxe_dmamem *sc_ctx; u_int32_t *sc_cmd_consumer; u_int32_t sc_cmd_consumer_cur; struct nxe_ring *sc_cmd_ring; struct nxe_ring *sc_rx_rings[NXE_NRING]; struct nxe_ring *sc_status_ring; /* monitoring */ struct timeout sc_tick; struct ksensor sc_sensor; struct ksensordev sc_sensor_dev; /* ioctl lock */ struct rwlock sc_lock; }; int nxe_match(struct device *, void *, void *); void nxe_attach(struct device *, struct device *, void *); int nxe_intr(void *); struct cfattach nxe_ca = { sizeof(struct nxe_softc), nxe_match, nxe_attach }; struct cfdriver nxe_cd = { NULL, "nxe", DV_IFNET }; /* init code */ int nxe_pci_map(struct nxe_softc *, struct pci_attach_args *); void nxe_pci_unmap(struct nxe_softc *); int nxe_board_info(struct nxe_softc *); int nxe_user_info(struct nxe_softc *); int nxe_init(struct nxe_softc *); void nxe_uninit(struct nxe_softc *); void nxe_mountroot(struct device *); /* chip state */ void nxe_tick(void *); void nxe_link_state(struct nxe_softc *); /* interface operations */ int nxe_ioctl(struct ifnet *, u_long, caddr_t); void nxe_start(struct ifnet *); int nxe_complete(struct nxe_softc *); void nxe_watchdog(struct ifnet *); void nxe_rx_start(struct nxe_softc *); void nxe_up(struct nxe_softc *); void nxe_lladdr(struct nxe_softc *); void nxe_iff(struct nxe_softc *); void nxe_down(struct nxe_softc *); int nxe_up_fw(struct nxe_softc *); /* ifmedia operations */ int nxe_media_change(struct ifnet *); void nxe_media_status(struct ifnet *, struct ifmediareq *); /* ring handling */ struct nxe_ring *nxe_ring_alloc(struct nxe_softc *, size_t, u_int); void nxe_ring_sync(struct nxe_softc *, struct nxe_ring *, int); void nxe_ring_free(struct nxe_softc *, struct nxe_ring *); int nxe_ring_readable(struct nxe_ring *, int); int nxe_ring_writeable(struct nxe_ring *, int); void *nxe_ring_cur(struct nxe_softc *, struct nxe_ring *); void *nxe_ring_next(struct nxe_softc *, struct nxe_ring *); struct mbuf *nxe_load_pkt(struct nxe_softc *, bus_dmamap_t, struct mbuf *); struct mbuf *nxe_coalesce_m(struct mbuf *); /* pkts */ struct nxe_pkt_list *nxe_pkt_alloc(struct nxe_softc *, u_int, int); void nxe_pkt_free(struct nxe_softc *, struct nxe_pkt_list *); void nxe_pkt_put(struct nxe_pkt_list *, struct nxe_pkt *); struct nxe_pkt *nxe_pkt_get(struct nxe_pkt_list *); struct nxe_pkt *nxe_pkt_used(struct nxe_pkt_list *); /* wrapper around dmaable memory allocations */ struct nxe_dmamem *nxe_dmamem_alloc(struct nxe_softc *, bus_size_t, bus_size_t); void nxe_dmamem_free(struct nxe_softc *, struct nxe_dmamem *); /* low level hardware access goo */ u_int32_t nxe_read(struct nxe_softc *, bus_size_t); void nxe_write(struct nxe_softc *, bus_size_t, u_int32_t); int nxe_wait(struct nxe_softc *, bus_size_t, u_int32_t, u_int32_t, u_int); void nxe_doorbell(struct nxe_softc *, u_int32_t); int nxe_crb_set(struct nxe_softc *, int); u_int32_t nxe_crb_read(struct nxe_softc *, bus_size_t); void nxe_crb_write(struct nxe_softc *, bus_size_t, u_int32_t); int nxe_crb_wait(struct nxe_softc *, bus_size_t, u_int32_t, u_int32_t, u_int); int nxe_rom_lock(struct nxe_softc *); void nxe_rom_unlock(struct nxe_softc *); int nxe_rom_read(struct nxe_softc *, u_int32_t, u_int32_t *); int nxe_rom_read_region(struct nxe_softc *, u_int32_t, void *, size_t); /* misc bits */ #define DEVNAME(_sc) ((_sc)->sc_dev.dv_xname) /* let's go! */ const struct pci_matchid nxe_devices[] = { { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_10GXxR }, { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_10GCX4 }, { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_4GCU }, { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_IMEZ }, { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_HMEZ }, { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_IMEZ_2 }, { PCI_VENDOR_NETXEN, PCI_PRODUCT_NETXEN_NXB_HMEZ_2 } }; const struct nxe_board nxe_boards[] = { { NXE_BRDTYPE_P2_SB35_4G, NXE_0_NIU_MODE_GBE }, { NXE_BRDTYPE_P2_SB31_10G, NXE_0_NIU_MODE_XGE }, { NXE_BRDTYPE_P2_SB31_2G, NXE_0_NIU_MODE_GBE }, { NXE_BRDTYPE_P2_SB31_10G_IMEZ, NXE_0_NIU_MODE_XGE }, { NXE_BRDTYPE_P2_SB31_10G_HMEZ, NXE_0_NIU_MODE_XGE }, { NXE_BRDTYPE_P2_SB31_10G_CX4, NXE_0_NIU_MODE_XGE } }; int nxe_match(struct device *parent, void *match, void *aux) { struct pci_attach_args *pa = aux; if (PCI_CLASS(pa->pa_class) != PCI_CLASS_NETWORK) return (0); return (pci_matchbyid(pa, nxe_devices, nitems(nxe_devices))); } void nxe_attach(struct device *parent, struct device *self, void *aux) { struct nxe_softc *sc = (struct nxe_softc *)self; struct pci_attach_args *pa = aux; pci_intr_handle_t ih; struct ifnet *ifp; sc->sc_dmat = pa->pa_dmat; sc->sc_function = pa->pa_function; sc->sc_window = -1; rw_init(&sc->sc_lock, NULL); if (nxe_pci_map(sc, pa) != 0) { /* error already printed by nxe_pci_map() */ return; } nxe_crb_set(sc, 1); if (nxe_board_info(sc) != 0) { /* error already printed by nxe_board_info() */ goto unmap; } if (nxe_user_info(sc) != 0) { /* error already printed by nxe_board_info() */ goto unmap; } if (nxe_init(sc) != 0) { /* error already printed by nxe_init() */ goto unmap; } if (pci_intr_map(pa, &ih) != 0) { printf(": unable to map interrupt\n"); goto uninit; } sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, nxe_intr, sc, DEVNAME(sc)); if (sc->sc_ih == NULL) { printf(": unable to establish interrupt\n"); goto uninit; } ifp = &sc->sc_ac.ac_if; ifp->if_softc = sc; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_capabilities = IFCAP_VLAN_MTU; ifp->if_ioctl = nxe_ioctl; ifp->if_start = nxe_start; ifp->if_watchdog = nxe_watchdog; ifp->if_hardmtu = MCLBYTES - ETHER_HDR_LEN - ETHER_CRC_LEN; strlcpy(ifp->if_xname, DEVNAME(sc), IFNAMSIZ); IFQ_SET_MAXLEN(&ifp->if_snd, 512); /* XXX */ ifmedia_init(&sc->sc_media, 0, nxe_media_change, nxe_media_status); ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_AUTO, 0, NULL); ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_AUTO); if_attach(ifp); ether_ifattach(ifp); printf(": %s firmware %d.%d.%d address %s\n", pci_intr_string(pa->pa_pc, ih), sc->sc_fw_major, sc->sc_fw_minor, sc->sc_fw_build, ether_sprintf(sc->sc_ac.ac_enaddr)); return; uninit: nxe_uninit(sc); unmap: nxe_pci_unmap(sc); } int nxe_pci_map(struct nxe_softc *sc, struct pci_attach_args *pa) { pcireg_t memtype; memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, NXE_PCI_BAR_MEM); if (pci_mapreg_map(pa, NXE_PCI_BAR_MEM, memtype, 0, &sc->sc_memt, &sc->sc_memh, NULL, &sc->sc_mems, 0) != 0) { printf(": unable to map host registers\n"); return (1); } if (sc->sc_mems != NXE_PCI_BAR_MEM_128MB) { printf(": unexpected register map size\n"); goto unmap_mem; } /* set up the CRB window */ if (bus_space_subregion(sc->sc_memt, sc->sc_memh, NXE_MAP_CRB, sc->sc_mems - NXE_MAP_CRB, &sc->sc_crbh) != 0) { printf(": unable to create CRB window\n"); goto unmap_mem; } memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, NXE_PCI_BAR_DOORBELL); if (pci_mapreg_map(pa, NXE_PCI_BAR_DOORBELL, memtype, 0, &sc->sc_dbt, &sc->sc_dbh, NULL, &sc->sc_dbs, 0) != 0) { printf(": unable to map doorbell registers\n"); /* bus_space(9) says i dont have to unmap subregions */ goto unmap_mem; } config_mountroot(&sc->sc_dev, nxe_mountroot); return (0); unmap_mem: bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_mems); sc->sc_mems = 0; return (1); } void nxe_pci_unmap(struct nxe_softc *sc) { bus_space_unmap(sc->sc_dbt, sc->sc_dbh, sc->sc_dbs); sc->sc_dbs = 0; /* bus_space(9) says i dont have to unmap the crb subregion */ bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_mems); sc->sc_mems = 0; } int nxe_intr(void *xsc) { struct nxe_softc *sc = xsc; u_int32_t vector; DASSERT(sc->sc_window == 1); vector = nxe_crb_read(sc, NXE_1_SW_INT_VECTOR); if (!ISSET(vector, NXE_ISR_MINE(sc->sc_function))) return (0); nxe_crb_write(sc, NXE_1_SW_INT_VECTOR, 0x80 << sc->sc_function); /* the interrupt is mine! we should do some work now */ return (1); } int nxe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t addr) { struct nxe_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)addr; int s, error = 0; rw_enter_write(&sc->sc_lock); s = splnet(); timeout_del(&sc->sc_tick); switch (cmd) { case SIOCSIFADDR: SET(ifp->if_flags, IFF_UP); /* FALLTHROUGH */ case SIOCSIFFLAGS: if (ISSET(ifp->if_flags, IFF_UP)) { if (ISSET(ifp->if_flags, IFF_RUNNING)) error = ENETRESET; else nxe_up(sc); } else { if (ISSET(ifp->if_flags, IFF_RUNNING)) nxe_down(sc); } break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); break; default: error = ether_ioctl(ifp, &sc->sc_ac, cmd, addr); } if (error == ENETRESET) { if (ISSET(ifp->if_flags, IFF_RUNNING)) { nxe_crb_set(sc, 0); nxe_iff(sc); nxe_crb_set(sc, 1); } error = 0; } nxe_tick(sc); splx(s); rw_exit_write(&sc->sc_lock); return (error); } void nxe_up(struct nxe_softc *sc) { struct ifnet *ifp = &sc->sc_ac.ac_if; static const u_int rx_ring_sizes[] = { 16384, 1024, 128 }; struct { struct nxe_ctx ctx; u_int32_t cmd_consumer; } __packed *dmamem; struct nxe_ctx *ctx; struct nxe_ctx_ring *ring; struct nxe_ring *nr; u_int64_t dva; u_int32_t intr_scheme; int i; if (nxe_up_fw(sc) != 0) return; /* allocate pkt lists */ sc->sc_tx_pkts = nxe_pkt_alloc(sc, 128, NXE_TXD_MAX_SEGS); if (sc->sc_tx_pkts == NULL) return; sc->sc_rx_pkts = nxe_pkt_alloc(sc, 128, NXE_RXD_MAX_SEGS); if (sc->sc_rx_pkts == NULL) goto free_tx_pkts; /* allocate the context memory and the consumer field */ sc->sc_ctx = nxe_dmamem_alloc(sc, sizeof(*dmamem), PAGE_SIZE); if (sc->sc_ctx == NULL) goto free_rx_pkts; dmamem = NXE_DMA_KVA(sc->sc_ctx); dva = NXE_DMA_DVA(sc->sc_ctx); ctx = &dmamem->ctx; ctx->ctx_cmd_consumer_addr = htole64(dva + sizeof(dmamem->ctx)); ctx->ctx_id = htole32(sc->sc_function); sc->sc_cmd_consumer = &dmamem->cmd_consumer; sc->sc_cmd_consumer_cur = 0; /* allocate the cmd/tx ring */ sc->sc_cmd_ring = nxe_ring_alloc(sc, sizeof(struct nxe_tx_desc), 1024 /* XXX */); if (sc->sc_cmd_ring == NULL) goto free_ctx; ctx->ctx_cmd_ring.r_addr = htole64(NXE_DMA_DVA(sc->sc_cmd_ring->nr_dmamem)); ctx->ctx_cmd_ring.r_size = htole32(sc->sc_cmd_ring->nr_nentries); /* allocate the status ring */ sc->sc_status_ring = nxe_ring_alloc(sc, sizeof(struct nxe_status_desc), 16384 /* XXX */); if (sc->sc_status_ring == NULL) goto free_cmd_ring; ctx->ctx_status_ring_addr = htole64(NXE_DMA_DVA(sc->sc_status_ring->nr_dmamem)); ctx->ctx_status_ring_size = htole32(sc->sc_status_ring->nr_nentries); /* allocate something to point the jumbo and lro rings at */ sc->sc_dummy_rx = nxe_dmamem_alloc(sc, NXE_MAX_PKTLEN, PAGE_SIZE); if (sc->sc_dummy_rx == NULL) goto free_status_ring; /* allocate the rx rings */ for (i = 0; i < NXE_NRING; i++) { ring = &ctx->ctx_rx_rings[i]; nr = nxe_ring_alloc(sc, sizeof(struct nxe_rx_desc), rx_ring_sizes[i]); if (nr == NULL) goto free_rx_rings; ring->r_addr = htole64(NXE_DMA_DVA(nr->nr_dmamem)); ring->r_size = htole32(nr->nr_nentries); sc->sc_rx_rings[i] = nr; nxe_ring_sync(sc, sc->sc_rx_rings[i], BUS_DMASYNC_PREWRITE); } /* nothing can possibly go wrong now */ bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_dummy_rx), 0, NXE_DMA_LEN(sc->sc_dummy_rx), BUS_DMASYNC_PREREAD); nxe_ring_sync(sc, sc->sc_status_ring, BUS_DMASYNC_PREREAD); nxe_ring_sync(sc, sc->sc_cmd_ring, BUS_DMASYNC_PREWRITE); bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_ctx), 0, NXE_DMA_LEN(sc->sc_ctx), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); nxe_crb_write(sc, NXE_1_SW_CONTEXT_ADDR_LO(sc->sc_function), (u_int32_t)dva); nxe_crb_write(sc, NXE_1_SW_CONTEXT_ADDR_HI(sc->sc_function), (u_int32_t)(dva >> 32)); nxe_crb_write(sc, NXE_1_SW_CONTEXT(sc->sc_port), NXE_1_SW_CONTEXT_SIG(sc->sc_port)); nxe_crb_set(sc, 0); nxe_crb_write(sc, NXE_0_XG_MTU(sc->sc_function), MCLBYTES - ETHER_ALIGN); nxe_lladdr(sc); nxe_iff(sc); nxe_crb_set(sc, 1); SET(ifp->if_flags, IFF_RUNNING); ifq_clr_oactive(&ifp->if_snd); /* enable interrupts */ intr_scheme = nxe_crb_read(sc, NXE_1_SW_NIC_CAP_FW); if (intr_scheme != NXE_1_SW_NIC_CAP_PORTINTR) nxe_write(sc, NXE_ISR_MASK, 0x77f); nxe_crb_write(sc, NXE_1_SW_INT_MASK(sc->sc_function), 0x1); if (intr_scheme != NXE_1_SW_NIC_CAP_PORTINTR) nxe_crb_write(sc, NXE_1_SW_INT_VECTOR, 0x0); nxe_write(sc, NXE_ISR_TARGET_MASK, 0xbff); return; free_rx_rings: while (i > 0) { i--; nxe_ring_sync(sc, sc->sc_rx_rings[i], BUS_DMASYNC_POSTWRITE); nxe_ring_free(sc, sc->sc_rx_rings[i]); } nxe_dmamem_free(sc, sc->sc_dummy_rx); free_status_ring: nxe_ring_free(sc, sc->sc_status_ring); free_cmd_ring: nxe_ring_free(sc, sc->sc_cmd_ring); free_ctx: nxe_dmamem_free(sc, sc->sc_ctx); free_rx_pkts: nxe_pkt_free(sc, sc->sc_rx_pkts); free_tx_pkts: nxe_pkt_free(sc, sc->sc_tx_pkts); } int nxe_up_fw(struct nxe_softc *sc) { u_int32_t r; r = nxe_crb_read(sc, NXE_1_SW_CMDPEG_STATE); if (r == NXE_1_SW_CMDPEG_STATE_ACK) return (0); if (r != NXE_1_SW_CMDPEG_STATE_DONE) return (1); nxe_crb_write(sc, NXE_1_SW_NIC_CAP_HOST, NXE_1_SW_NIC_CAP_PORTINTR); nxe_crb_write(sc, NXE_1_SW_MPORT_MODE, NXE_1_SW_MPORT_MODE_MULTI); nxe_crb_write(sc, NXE_1_SW_CMDPEG_STATE, NXE_1_SW_CMDPEG_STATE_ACK); /* XXX busy wait in a process context is naughty */ if (!nxe_crb_wait(sc, NXE_1_SW_STATUS_STATE(sc->sc_function), 0xffffffff, NXE_1_SW_STATUS_STATE_READY, 1000)) return (1); return (0); } void nxe_lladdr(struct nxe_softc *sc) { u_int8_t *lladdr = sc->sc_ac.ac_enaddr; DASSERT(sc->sc_window == 0); nxe_crb_write(sc, NXE_0_XG_MAC_LO(sc->sc_port), (lladdr[0] << 16) | (lladdr[1] << 24)); nxe_crb_write(sc, NXE_0_XG_MAC_HI(sc->sc_port), (lladdr[2] << 0) | (lladdr[3] << 8) | (lladdr[4] << 16) | (lladdr[5] << 24)); } void nxe_iff(struct nxe_softc *sc) { struct ifnet *ifp = &sc->sc_ac.ac_if; u_int32_t cfg1 = 0x1447; /* XXX */ DASSERT(sc->sc_window == 0); CLR(ifp->if_flags, IFF_ALLMULTI); if (ISSET(ifp->if_flags, IFF_PROMISC) || sc->sc_ac.ac_multicnt > 0) { SET(ifp->if_flags, IFF_ALLMULTI); if (ISSET(ifp->if_flags, IFF_PROMISC)) cfg1 |= NXE_0_XG_CFG1_PROMISC; else cfg1 |= NXE_0_XG_CFG1_MULTICAST; } nxe_crb_write(sc, NXE_0_XG_CFG0(sc->sc_port), NXE_0_XG_CFG0_TX_EN | NXE_0_XG_CFG0_RX_EN); nxe_crb_write(sc, NXE_0_XG_CFG1(sc->sc_port), cfg1); } void nxe_down(struct nxe_softc *sc) { struct ifnet *ifp = &sc->sc_ac.ac_if; int i; CLR(ifp->if_flags, IFF_RUNNING | IFF_ALLMULTI); ifq_clr_oactive(&ifp->if_snd); /* XXX turn the chip off */ bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_ctx), 0, NXE_DMA_LEN(sc->sc_ctx), BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); nxe_ring_sync(sc, sc->sc_cmd_ring, BUS_DMASYNC_POSTWRITE); nxe_ring_sync(sc, sc->sc_status_ring, BUS_DMASYNC_POSTREAD); bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_dummy_rx), 0, NXE_DMA_LEN(sc->sc_dummy_rx), BUS_DMASYNC_POSTREAD); for (i = 0; i < NXE_NRING; i++) { nxe_ring_sync(sc, sc->sc_rx_rings[i], BUS_DMASYNC_POSTWRITE); nxe_ring_free(sc, sc->sc_rx_rings[i]); } nxe_dmamem_free(sc, sc->sc_dummy_rx); nxe_ring_free(sc, sc->sc_status_ring); nxe_ring_free(sc, sc->sc_cmd_ring); nxe_dmamem_free(sc, sc->sc_ctx); nxe_pkt_free(sc, sc->sc_rx_pkts); nxe_pkt_free(sc, sc->sc_tx_pkts); } void nxe_start(struct ifnet *ifp) { struct nxe_softc *sc = ifp->if_softc; struct nxe_ring *nr = sc->sc_cmd_ring; struct nxe_tx_desc *txd; struct nxe_pkt *pkt; struct mbuf *m; bus_dmamap_t dmap; bus_dma_segment_t *segs; int nsegs; if (!ISSET(ifp->if_flags, IFF_RUNNING) || ifq_is_oactive(&ifp->if_snd) || IFQ_IS_EMPTY(&ifp->if_snd)) return; if (nxe_ring_writeable(nr, sc->sc_cmd_consumer_cur) < NXE_TXD_DESCS) { ifq_set_oactive(&ifp->if_snd); return; } nxe_ring_sync(sc, nr, BUS_DMASYNC_POSTWRITE); txd = nxe_ring_cur(sc, nr); bzero(txd, sizeof(struct nxe_tx_desc)); do { m = ifq_deq_begin(&ifp->if_snd); if (m == NULL) break; pkt = nxe_pkt_get(sc->sc_tx_pkts); if (pkt == NULL) { ifq_deq_rollback(&ifp->if_snd, m); ifq_set_oactive(&ifp->if_snd); break; } ifq_deq_commit(&ifp->if_snd, m); dmap = pkt->pkt_dmap; m = nxe_load_pkt(sc, dmap, m); if (m == NULL) { nxe_pkt_put(sc->sc_tx_pkts, pkt); ifp->if_oerrors++; break; } #if NBPFILTER > 0 if (ifp->if_bpf) bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); #endif pkt->pkt_m = m; txd->tx_flags = htole16(NXE_TXD_F_OPCODE_TX); txd->tx_nbufs = dmap->dm_nsegs; txd->tx_length = htole16(dmap->dm_mapsize); txd->tx_port = sc->sc_port; segs = dmap->dm_segs; nsegs = dmap->dm_nsegs; do { switch ((nsegs > NXE_TXD_SEGS) ? NXE_TXD_SEGS : nsegs) { case 4: txd->tx_addr_4 = htole64(segs[3].ds_addr); txd->tx_slen_4 = htole32(segs[3].ds_len); case 3: txd->tx_addr_3 = htole64(segs[2].ds_addr); txd->tx_slen_3 = htole32(segs[2].ds_len); case 2: txd->tx_addr_2 = htole64(segs[1].ds_addr); txd->tx_slen_2 = htole32(segs[1].ds_len); case 1: txd->tx_addr_1 = htole64(segs[0].ds_addr); txd->tx_slen_1 = htole32(segs[0].ds_len); break; default: panic("%s: unexpected segments in tx map", DEVNAME(sc)); } nsegs -= NXE_TXD_SEGS; segs += NXE_TXD_SEGS; pkt->pkt_id = nr->nr_slot; txd = nxe_ring_next(sc, nr); bzero(txd, sizeof(struct nxe_tx_desc)); } while (nsegs > 0); bus_dmamap_sync(sc->sc_dmat, dmap, 0, dmap->dm_mapsize, BUS_DMASYNC_PREWRITE); ifp->if_opackets++; } while (nr->nr_ready >= NXE_TXD_DESCS); nxe_ring_sync(sc, nr, BUS_DMASYNC_PREWRITE); nxe_crb_write(sc, NXE_1_SW_CMD_PRODUCER(sc->sc_function), nr->nr_slot); } int nxe_complete(struct nxe_softc *sc) { struct nxe_pkt *pkt; int new_cons, cur_cons; int rv = 0; bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_ctx), 0, NXE_DMA_LEN(sc->sc_ctx), BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD); new_cons = letoh32(*sc->sc_cmd_consumer); bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_ctx), 0, NXE_DMA_LEN(sc->sc_ctx), BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); cur_cons = sc->sc_cmd_consumer_cur; pkt = nxe_pkt_used(sc->sc_tx_pkts); while (pkt != NULL && cur_cons != new_cons) { if (pkt->pkt_id == cur_cons) { bus_dmamap_sync(sc->sc_dmat, pkt->pkt_dmap, 0, pkt->pkt_dmap->dm_mapsize, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->sc_dmat, pkt->pkt_dmap); m_freem(pkt->pkt_m); nxe_pkt_put(sc->sc_tx_pkts, pkt); pkt = nxe_pkt_used(sc->sc_tx_pkts); } cur_cons++; cur_cons %= sc->sc_cmd_ring->nr_nentries; rv = 1; } if (rv == 1) { sc->sc_cmd_consumer_cur = cur_cons; ifq_clr_oactive(&sc->sc_ac.ac_if.if_snd); } return (rv); } struct mbuf * nxe_coalesce_m(struct mbuf *m) { struct mbuf *m0; MGETHDR(m0, M_DONTWAIT, MT_DATA); if (m0 == NULL) goto err; if (m->m_pkthdr.len > MHLEN) { MCLGET(m0, M_DONTWAIT); if (!(m0->m_flags & M_EXT)) { m_freem(m0); m0 = NULL; goto err; } } m_copydata(m, 0, m->m_pkthdr.len, mtod(m0, caddr_t)); m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len; err: m_freem(m); return (m0); } struct mbuf * nxe_load_pkt(struct nxe_softc *sc, bus_dmamap_t dmap, struct mbuf *m) { switch (bus_dmamap_load_mbuf(sc->sc_dmat, dmap, m, BUS_DMA_NOWAIT)) { case 0: break; case EFBIG: m = nxe_coalesce_m(m); if (m == NULL) break; if (bus_dmamap_load_mbuf(sc->sc_dmat, dmap, m, BUS_DMA_NOWAIT) == 0) break; /* we get here on error */ /* FALLTHROUGH */ default: m_freem(m); m = NULL; break; } return (m); } void nxe_rx_start(struct nxe_softc *sc) { struct nxe_ring *nr = sc->sc_rx_rings[NXE_RING_RX]; struct nxe_rx_desc *rxd; struct nxe_pkt *pkt; struct mbuf *m; if (nxe_ring_writeable(nr, 0) == 0) return; nxe_ring_sync(sc, nr, BUS_DMASYNC_POSTWRITE); rxd = nxe_ring_cur(sc, nr); for (;;) { pkt = nxe_pkt_get(sc->sc_rx_pkts); if (pkt == NULL) goto done; MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) goto put_pkt; MCLGET(m, M_DONTWAIT); if (!ISSET(m->m_flags, M_EXT)) goto free_m; m->m_data += ETHER_ALIGN; m->m_len = m->m_pkthdr.len = MCLBYTES - ETHER_ALIGN; if (bus_dmamap_load_mbuf(sc->sc_dmat, pkt->pkt_dmap, m, BUS_DMA_NOWAIT) != 0) goto free_m; pkt->pkt_m = m; bzero(rxd, sizeof(struct nxe_rx_desc)); rxd->rx_len = htole32(m->m_len); rxd->rx_id = pkt->pkt_id; rxd->rx_addr = htole64(pkt->pkt_dmap->dm_segs[0].ds_addr); bus_dmamap_sync(sc->sc_dmat, pkt->pkt_dmap, 0, pkt->pkt_dmap->dm_mapsize, BUS_DMASYNC_PREREAD); rxd = nxe_ring_next(sc, nr); if (nr->nr_ready == 0) goto done; } free_m: m_freem(m); put_pkt: nxe_pkt_put(sc->sc_rx_pkts, pkt); done: nxe_ring_sync(sc, nr, BUS_DMASYNC_PREWRITE); nxe_crb_write(sc, NXE_1_SW_RX_PRODUCER(sc->sc_function), nr->nr_slot); nxe_doorbell(sc, NXE_DB_PEGID_RX | NXE_DB_PRIVID | NXE_DB_OPCODE_RX_PROD | NXE_DB_COUNT(nr->nr_slot) | NXE_DB_CTXID(sc->sc_function)); } void nxe_watchdog(struct ifnet *ifp) { /* do nothing */ } int nxe_media_change(struct ifnet *ifp) { /* ignore for now */ return (0); } void nxe_media_status(struct ifnet *ifp, struct ifmediareq *imr) { struct nxe_softc *sc = ifp->if_softc; imr->ifm_active = IFM_ETHER | IFM_AUTO; imr->ifm_status = IFM_AVALID; nxe_link_state(sc); if (LINK_STATE_IS_UP(ifp->if_link_state)) imr->ifm_status |= IFM_ACTIVE; } void nxe_link_state(struct nxe_softc *sc) { struct ifnet *ifp = &sc->sc_ac.ac_if; int link_state = LINK_STATE_DOWN; u_int32_t r; DASSERT(sc->sc_window == 1); r = nxe_crb_read(sc, NXE_1_SW_XG_STATE); if (NXE_1_SW_XG_STATE_PORT(r, sc->sc_function) & NXE_1_SW_XG_STATE_UP) link_state = LINK_STATE_UP; if (ifp->if_link_state != link_state) { ifp->if_link_state = link_state; if_link_state_change(ifp); } } int nxe_board_info(struct nxe_softc *sc) { struct nxe_info *ni; int rv = 1; int i; ni = malloc(sizeof(struct nxe_info), M_TEMP, M_NOWAIT); if (ni == NULL) { printf(": unable to allocate temporary memory\n"); return (1); } if (nxe_rom_read_region(sc, NXE_FLASH_BRDCFG, ni, sizeof(struct nxe_info)) != 0) { printf(": unable to read board info\n"); goto out; } if (ni->ni_hdrver != NXE_INFO_HDRVER_1) { printf(": unexpected board info header version 0x%08x\n", ni->ni_hdrver); goto out; } if (ni->ni_magic != NXE_INFO_MAGIC) { printf(": board info magic is invalid\n"); goto out; } for (i = 0; i < nitems(nxe_boards); i++) { if (ni->ni_board_type == nxe_boards[i].brd_type) { sc->sc_board = &nxe_boards[i]; break; } } if (sc->sc_board == NULL) { printf(": unknown board type %04x\n", ni->ni_board_type); goto out; } rv = 0; out: free(ni, M_TEMP, 0); return (rv); } int nxe_user_info(struct nxe_softc *sc) { struct nxe_userinfo *nu; u_int64_t lladdr; struct nxe_lladdr *la; int rv = 1; nu = malloc(sizeof(struct nxe_userinfo), M_TEMP, M_NOWAIT); if (nu == NULL) { printf(": unable to allocate temp memory\n"); return (1); } if (nxe_rom_read_region(sc, NXE_FLASH_USER, nu, sizeof(struct nxe_userinfo)) != 0) { printf(": unable to read user info\n"); goto out; } sc->sc_fw_major = nu->nu_imageinfo.nim_img_ver_major; sc->sc_fw_minor = nu->nu_imageinfo.nim_img_ver_minor; sc->sc_fw_build = letoh16(nu->nu_imageinfo.nim_img_ver_build); if (sc->sc_fw_major > NXE_VERSION_MAJOR || sc->sc_fw_major < NXE_VERSION_MAJOR || sc->sc_fw_minor > NXE_VERSION_MINOR || sc->sc_fw_minor < NXE_VERSION_MINOR) { printf(": firmware %d.%d.%d is unsupported by this driver\n", sc->sc_fw_major, sc->sc_fw_minor, sc->sc_fw_build); goto out; } lladdr = swap64(nu->nu_lladdr[sc->sc_function][0]); la = (struct nxe_lladdr *)&lladdr; bcopy(la->lladdr, sc->sc_ac.ac_enaddr, ETHER_ADDR_LEN); rv = 0; out: free(nu, M_TEMP, 0); return (rv); } int nxe_init(struct nxe_softc *sc) { u_int64_t dva; u_int32_t r; /* stop the chip from processing */ nxe_crb_write(sc, NXE_1_SW_CMD_PRODUCER(sc->sc_function), 0); nxe_crb_write(sc, NXE_1_SW_CMD_CONSUMER(sc->sc_function), 0); nxe_crb_write(sc, NXE_1_SW_CMD_ADDR_HI, 0); nxe_crb_write(sc, NXE_1_SW_CMD_ADDR_LO, 0); /* * if this is the first port on the device it needs some special * treatment to get things going. */ if (sc->sc_function == 0) { /* init adapter offload */ sc->sc_dummy_dma = nxe_dmamem_alloc(sc, NXE_1_SW_DUMMY_ADDR_LEN, PAGE_SIZE); if (sc->sc_dummy_dma == NULL) { printf(": unable to allocate dummy memory\n"); return (1); } bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_dummy_dma), 0, NXE_DMA_LEN(sc->sc_dummy_dma), BUS_DMASYNC_PREREAD); dva = NXE_DMA_DVA(sc->sc_dummy_dma); nxe_crb_write(sc, NXE_1_SW_DUMMY_ADDR_HI, dva >> 32); nxe_crb_write(sc, NXE_1_SW_DUMMY_ADDR_LO, dva); r = nxe_crb_read(sc, NXE_1_SW_BOOTLD_CONFIG); if (r == 0x55555555) { r = nxe_crb_read(sc, NXE_1_ROMUSB_SW_RESET); if (r != NXE_1_ROMUSB_SW_RESET_BOOT) { printf(": unexpected boot state\n"); goto err; } /* clear */ nxe_crb_write(sc, NXE_1_SW_BOOTLD_CONFIG, 0); } /* start the device up */ nxe_crb_write(sc, NXE_1_SW_DRIVER_VER, NXE_VERSION); nxe_crb_write(sc, NXE_1_GLB_PEGTUNE, NXE_1_GLB_PEGTUNE_DONE); /* * the firmware takes a long time to boot, so we'll check * it later on, and again when we want to bring a port up. */ } return (0); err: bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_dummy_dma), 0, NXE_DMA_LEN(sc->sc_dummy_dma), BUS_DMASYNC_POSTREAD); nxe_dmamem_free(sc, sc->sc_dummy_dma); return (1); } void nxe_uninit(struct nxe_softc *sc) { if (sc->sc_function == 0) { bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(sc->sc_dummy_dma), 0, NXE_DMA_LEN(sc->sc_dummy_dma), BUS_DMASYNC_POSTREAD); nxe_dmamem_free(sc, sc->sc_dummy_dma); } } void nxe_mountroot(struct device *self) { struct nxe_softc *sc = (struct nxe_softc *)self; DASSERT(sc->sc_window == 1); if (!nxe_crb_wait(sc, NXE_1_SW_CMDPEG_STATE, 0xffffffff, NXE_1_SW_CMDPEG_STATE_DONE, 10000)) { printf("%s: firmware bootstrap failed, code 0x%08x\n", DEVNAME(sc), nxe_crb_read(sc, NXE_1_SW_CMDPEG_STATE)); return; } sc->sc_port = nxe_crb_read(sc, NXE_1_SW_V2P(sc->sc_function)); if (sc->sc_port == 0x55555555) sc->sc_port = sc->sc_function; nxe_crb_write(sc, NXE_1_SW_NIC_CAP_HOST, NXE_1_SW_NIC_CAP_PORTINTR); nxe_crb_write(sc, NXE_1_SW_MPORT_MODE, NXE_1_SW_MPORT_MODE_MULTI); nxe_crb_write(sc, NXE_1_SW_CMDPEG_STATE, NXE_1_SW_CMDPEG_STATE_ACK); sc->sc_sensor.type = SENSOR_TEMP; strlcpy(sc->sc_sensor_dev.xname, DEVNAME(sc), sizeof(sc->sc_sensor_dev.xname)); sensor_attach(&sc->sc_sensor_dev, &sc->sc_sensor); sensordev_install(&sc->sc_sensor_dev); timeout_set(&sc->sc_tick, nxe_tick, sc); nxe_tick(sc); } void nxe_tick(void *xsc) { struct nxe_softc *sc = xsc; u_int32_t temp; int window; int s; s = splnet(); window = nxe_crb_set(sc, 1); temp = nxe_crb_read(sc, NXE_1_SW_TEMP); nxe_link_state(sc); nxe_crb_set(sc, window); splx(s); sc->sc_sensor.value = NXE_1_SW_TEMP_VAL(temp) * 1000000 + 273150000; sc->sc_sensor.flags = 0; switch (NXE_1_SW_TEMP_STATE(temp)) { case NXE_1_SW_TEMP_STATE_NONE: sc->sc_sensor.status = SENSOR_S_UNSPEC; break; case NXE_1_SW_TEMP_STATE_OK: sc->sc_sensor.status = SENSOR_S_OK; break; case NXE_1_SW_TEMP_STATE_WARN: sc->sc_sensor.status = SENSOR_S_WARN; break; case NXE_1_SW_TEMP_STATE_CRIT: /* we should probably bring things down if this is true */ sc->sc_sensor.status = SENSOR_S_CRIT; break; default: sc->sc_sensor.flags = SENSOR_FUNKNOWN; break; } timeout_add_sec(&sc->sc_tick, 5); } struct nxe_ring * nxe_ring_alloc(struct nxe_softc *sc, size_t desclen, u_int nentries) { struct nxe_ring *nr; nr = malloc(sizeof(struct nxe_ring), M_DEVBUF, M_WAITOK); nr->nr_dmamem = nxe_dmamem_alloc(sc, desclen * nentries, PAGE_SIZE); if (nr->nr_dmamem == NULL) { free(nr, M_DEVBUF, 0); return (NULL); } nr->nr_pos = NXE_DMA_KVA(nr->nr_dmamem); nr->nr_slot = 0; nr->nr_desclen = desclen; nr->nr_nentries = nentries; return (nr); } void nxe_ring_sync(struct nxe_softc *sc, struct nxe_ring *nr, int flags) { bus_dmamap_sync(sc->sc_dmat, NXE_DMA_MAP(nr->nr_dmamem), 0, NXE_DMA_LEN(nr->nr_dmamem), flags); } void nxe_ring_free(struct nxe_softc *sc, struct nxe_ring *nr) { nxe_dmamem_free(sc, nr->nr_dmamem); free(nr, M_DEVBUF, 0); } int nxe_ring_readable(struct nxe_ring *nr, int producer) { nr->nr_ready = producer - nr->nr_slot; if (nr->nr_ready < 0) nr->nr_ready += nr->nr_nentries; return (nr->nr_ready); } int nxe_ring_writeable(struct nxe_ring *nr, int consumer) { nr->nr_ready = consumer - nr->nr_slot; if (nr->nr_ready <= 0) nr->nr_ready += nr->nr_nentries; return (nr->nr_ready); } void * nxe_ring_cur(struct nxe_softc *sc, struct nxe_ring *nr) { return (nr->nr_pos); } void * nxe_ring_next(struct nxe_softc *sc, struct nxe_ring *nr) { if (++nr->nr_slot >= nr->nr_nentries) { nr->nr_slot = 0; nr->nr_pos = NXE_DMA_KVA(nr->nr_dmamem); } else nr->nr_pos += nr->nr_desclen; nr->nr_ready--; return (nr->nr_pos); } struct nxe_pkt_list * nxe_pkt_alloc(struct nxe_softc *sc, u_int npkts, int nsegs) { struct nxe_pkt_list *npl; struct nxe_pkt *pkt; int i; npl = malloc(sizeof(*npl), M_DEVBUF, M_WAITOK | M_ZERO); pkt = mallocarray(npkts, sizeof(*pkt), M_DEVBUF, M_WAITOK | M_ZERO); npl->npl_pkts = pkt; TAILQ_INIT(&npl->npl_free); TAILQ_INIT(&npl->npl_used); for (i = 0; i < npkts; i++) { pkt = &npl->npl_pkts[i]; pkt->pkt_id = i; if (bus_dmamap_create(sc->sc_dmat, NXE_MAX_PKTLEN, nsegs, NXE_MAX_PKTLEN, 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &pkt->pkt_dmap) != 0) { nxe_pkt_free(sc, npl); return (NULL); } TAILQ_INSERT_TAIL(&npl->npl_free, pkt, pkt_link); } return (npl); } void nxe_pkt_free(struct nxe_softc *sc, struct nxe_pkt_list *npl) { struct nxe_pkt *pkt; while ((pkt = nxe_pkt_get(npl)) != NULL) bus_dmamap_destroy(sc->sc_dmat, pkt->pkt_dmap); free(npl->npl_pkts, M_DEVBUF, 0); free(npl, M_DEVBUF, 0); } struct nxe_pkt * nxe_pkt_get(struct nxe_pkt_list *npl) { struct nxe_pkt *pkt; pkt = TAILQ_FIRST(&npl->npl_free); if (pkt != NULL) { TAILQ_REMOVE(&npl->npl_free, pkt, pkt_link); TAILQ_INSERT_TAIL(&npl->npl_used, pkt, pkt_link); } return (pkt); } void nxe_pkt_put(struct nxe_pkt_list *npl, struct nxe_pkt *pkt) { TAILQ_REMOVE(&npl->npl_used, pkt, pkt_link); TAILQ_INSERT_TAIL(&npl->npl_free, pkt, pkt_link); } struct nxe_pkt * nxe_pkt_used(struct nxe_pkt_list *npl) { return (TAILQ_FIRST(&npl->npl_used)); } struct nxe_dmamem * nxe_dmamem_alloc(struct nxe_softc *sc, bus_size_t size, bus_size_t align) { struct nxe_dmamem *ndm; int nsegs; ndm = malloc(sizeof(*ndm), M_DEVBUF, M_WAITOK | M_ZERO); ndm->ndm_size = size; if (bus_dmamap_create(sc->sc_dmat, size, 1, size, 0, BUS_DMA_WAITOK | BUS_DMA_ALLOCNOW, &ndm->ndm_map) != 0) goto ndmfree; if (bus_dmamem_alloc(sc->sc_dmat, size, align, 0, &ndm->ndm_seg, 1, &nsegs, BUS_DMA_WAITOK |BUS_DMA_ZERO) != 0) goto destroy; if (bus_dmamem_map(sc->sc_dmat, &ndm->ndm_seg, nsegs, size, &ndm->ndm_kva, BUS_DMA_WAITOK) != 0) goto free; if (bus_dmamap_load(sc->sc_dmat, ndm->ndm_map, ndm->ndm_kva, size, NULL, BUS_DMA_WAITOK) != 0) goto unmap; return (ndm); unmap: bus_dmamem_unmap(sc->sc_dmat, ndm->ndm_kva, size); free: bus_dmamem_free(sc->sc_dmat, &ndm->ndm_seg, 1); destroy: bus_dmamap_destroy(sc->sc_dmat, ndm->ndm_map); ndmfree: free(ndm, M_DEVBUF, 0); return (NULL); } void nxe_dmamem_free(struct nxe_softc *sc, struct nxe_dmamem *ndm) { bus_dmamem_unmap(sc->sc_dmat, ndm->ndm_kva, ndm->ndm_size); bus_dmamem_free(sc->sc_dmat, &ndm->ndm_seg, 1); bus_dmamap_destroy(sc->sc_dmat, ndm->ndm_map); free(ndm, M_DEVBUF, 0); } u_int32_t nxe_read(struct nxe_softc *sc, bus_size_t r) { bus_space_barrier(sc->sc_memt, sc->sc_memh, r, 4, BUS_SPACE_BARRIER_READ); return (bus_space_read_4(sc->sc_memt, sc->sc_memh, r)); } void nxe_write(struct nxe_softc *sc, bus_size_t r, u_int32_t v) { bus_space_write_4(sc->sc_memt, sc->sc_memh, r, v); bus_space_barrier(sc->sc_memt, sc->sc_memh, r, 4, BUS_SPACE_BARRIER_WRITE); } int nxe_wait(struct nxe_softc *sc, bus_size_t r, u_int32_t m, u_int32_t v, u_int timeout) { while ((nxe_read(sc, r) & m) != v) { if (timeout == 0) return (0); delay(1000); timeout--; } return (1); } void nxe_doorbell(struct nxe_softc *sc, u_int32_t v) { bus_space_write_4(sc->sc_memt, sc->sc_memh, NXE_DB, v); bus_space_barrier(sc->sc_memt, sc->sc_memh, NXE_DB, 4, BUS_SPACE_BARRIER_WRITE); } int nxe_crb_set(struct nxe_softc *sc, int window) { int oldwindow = sc->sc_window; u_int32_t r; if (sc->sc_window != window) { sc->sc_window = window; r = window ? NXE_WIN_CRB_1 : NXE_WIN_CRB_0; nxe_write(sc, NXE_WIN_CRB(sc->sc_function), r); if (nxe_read(sc, NXE_WIN_CRB(sc->sc_function)) != r) printf("%s: crb window hasnt moved\n", DEVNAME(sc)); } return (oldwindow); } u_int32_t nxe_crb_read(struct nxe_softc *sc, bus_size_t r) { bus_space_barrier(sc->sc_memt, sc->sc_crbh, r, 4, BUS_SPACE_BARRIER_READ); return (bus_space_read_4(sc->sc_memt, sc->sc_crbh, r)); } void nxe_crb_write(struct nxe_softc *sc, bus_size_t r, u_int32_t v) { bus_space_write_4(sc->sc_memt, sc->sc_crbh, r, v); bus_space_barrier(sc->sc_memt, sc->sc_crbh, r, 4, BUS_SPACE_BARRIER_WRITE); } int nxe_crb_wait(struct nxe_softc *sc, bus_size_t r, u_int32_t m, u_int32_t v, u_int timeout) { while ((nxe_crb_read(sc, r) & m) != v) { if (timeout == 0) return (0); delay(1000); timeout--; } return (1); } int nxe_rom_lock(struct nxe_softc *sc) { if (!nxe_wait(sc, NXE_SEM_ROM_LOCK, 0xffffffff, NXE_SEM_DONE, 10000)) return (1); nxe_crb_write(sc, NXE_1_SW_ROM_LOCK_ID, NXE_1_SW_ROM_LOCK_ID); return (0); } void nxe_rom_unlock(struct nxe_softc *sc) { nxe_read(sc, NXE_SEM_ROM_UNLOCK); } int nxe_rom_read(struct nxe_softc *sc, u_int32_t r, u_int32_t *v) { int rv = 1; DASSERT(sc->sc_window == 1); if (nxe_rom_lock(sc) != 0) return (1); /* set the rom address */ nxe_crb_write(sc, NXE_1_ROM_ADDR, r); /* set the xfer len */ nxe_crb_write(sc, NXE_1_ROM_ABYTE_CNT, 3); delay(100); /* used to prevent bursting on the chipset */ nxe_crb_write(sc, NXE_1_ROM_DBYTE_CNT, 0); /* set opcode and wait for completion */ nxe_crb_write(sc, NXE_1_ROM_OPCODE, NXE_1_ROM_OPCODE_READ); if (!nxe_crb_wait(sc, NXE_1_ROMUSB_STATUS, NXE_1_ROMUSB_STATUS_DONE, NXE_1_ROMUSB_STATUS_DONE, 100)) goto err; /* reset counters */ nxe_crb_write(sc, NXE_1_ROM_ABYTE_CNT, 0); delay(100); nxe_crb_write(sc, NXE_1_ROM_DBYTE_CNT, 0); *v = nxe_crb_read(sc, NXE_1_ROM_RDATA); rv = 0; err: nxe_rom_unlock(sc); return (rv); } int nxe_rom_read_region(struct nxe_softc *sc, u_int32_t r, void *buf, size_t buflen) { u_int32_t *databuf = buf; int i; #ifdef NXE_DEBUG if ((buflen % 4) != 0) panic("nxe_read_rom_region: buflen is wrong (%d)", buflen); #endif buflen = buflen / 4; for (i = 0; i < buflen; i++) { if (nxe_rom_read(sc, r, &databuf[i]) != 0) return (1); r += sizeof(u_int32_t); } return (0); }