65bd95f881
Shift to using the same queueing strategy that the amr driver uses. Some simple tests indicate that we use about 2% of the CPU at around 500tps with the controller completely saturated with I/O.
374 lines
12 KiB
C
374 lines
12 KiB
C
/*-
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* Copyright (c) 1999 Michael Smith
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#define MLX_CFG_BASE0 0x10 /* first region */
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#define MLX_CFG_BASE1 0x14 /* second region (type 3 only) */
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#define MLX_BLKSIZE 512 /* fixed feature */
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/*
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* Selected command codes.
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*/
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#define MLX_CMD_ENQUIRY 0x53
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#define MLX_CMD_ENQUIRY2 0x1c
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#define MLX_CMD_ENQSYSDRIVE 0x19
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#define MLX_CMD_READOLDSG 0xb6
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#define MLX_CMD_WRITEOLDSG 0xb7
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#define MLX_CMD_FLUSH 0x0a
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#define MLX_CMD_LOGOP 0x72
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#define MLX_CMD_REBUILDASYNC 0x16
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#define MLX_CMD_CHECKASYNC 0x1e
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#define MLX_CMD_REBUILDSTAT 0x0c
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#define MLX_CMD_STOPCHANNEL 0x13
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#define MLX_CMD_STARTCHANNEL 0x12
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/*
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* Status values.
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*/
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#define MLX_STATUS_OK 0x0000
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#define MLX_STATUS_RDWROFFLINE 0x0002 /* read/write claims drive is offline */
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#define MLX_STATUS_WEDGED 0xdead /* controller not listening */
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#define MLX_STATUS_BUSY 0xffff /* command is in controller */
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/*
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* Accessor defines for the V3 interface.
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*/
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#define MLX_V3_MAILBOX 0x00
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#define MLX_V3_STATUS_IDENT 0x0d
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#define MLX_V3_STATUS 0x0e
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#define MLX_V3_IDBR 0x40
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#define MLX_V3_ODBR 0x41
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#define MLX_V3_IER 0x43
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#define MLX_V3_PUT_MAILBOX(sc, idx, val) bus_space_write_1(sc->mlx_btag, sc->mlx_bhandle, MLX_V3_MAILBOX + idx, val)
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#define MLX_V3_GET_STATUS_IDENT(sc) bus_space_read_1 (sc->mlx_btag, sc->mlx_bhandle, MLX_V3_STATUS_IDENT)
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#define MLX_V3_GET_STATUS(sc) bus_space_read_2 (sc->mlx_btag, sc->mlx_bhandle, MLX_V3_STATUS)
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#define MLX_V3_GET_IDBR(sc) bus_space_read_1 (sc->mlx_btag, sc->mlx_bhandle, MLX_V3_IDBR)
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#define MLX_V3_PUT_IDBR(sc, val) bus_space_write_1(sc->mlx_btag, sc->mlx_bhandle, MLX_V3_IDBR, val)
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#define MLX_V3_GET_ODBR(sc) bus_space_read_1 (sc->mlx_btag, sc->mlx_bhandle, MLX_V3_ODBR)
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#define MLX_V3_PUT_ODBR(sc, val) bus_space_write_1(sc->mlx_btag, sc->mlx_bhandle, MLX_V3_ODBR, val)
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#define MLX_V3_PUT_IER(sc, val) bus_space_write_1(sc->mlx_btag, sc->mlx_bhandle, MLX_V3_IER, val)
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#define MLX_V3_IDB_FULL (1<<0) /* mailbox is full */
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#define MLX_V3_IDB_SACK (1<<1) /* acknowledge status read */
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#define MLX_V3_ODB_SAVAIL (1<<0) /* status is available */
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/*
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* Accessor defines for the V4 interface.
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*/
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#define MLX_V4_MAILBOX 0x1000
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#define MLX_V4_STATUS_IDENT 0x1018
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#define MLX_V4_STATUS 0x101a
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#define MLX_V4_IDBR 0x0020
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#define MLX_V4_ODBR 0x002c
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#define MLX_V4_IER 0x0034
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/* use longword access? */
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#define MLX_V4_PUT_MAILBOX(sc, idx, val) bus_space_write_1(sc->mlx_btag, sc->mlx_bhandle, MLX_V4_MAILBOX + idx, val)
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#define MLX_V4_GET_STATUS_IDENT(sc) bus_space_read_1 (sc->mlx_btag, sc->mlx_bhandle, MLX_V4_STATUS_IDENT)
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#define MLX_V4_GET_STATUS(sc) bus_space_read_2 (sc->mlx_btag, sc->mlx_bhandle, MLX_V4_STATUS)
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#define MLX_V4_GET_IDBR(sc) bus_space_read_4 (sc->mlx_btag, sc->mlx_bhandle, MLX_V4_IDBR)
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#define MLX_V4_PUT_IDBR(sc, val) bus_space_write_4(sc->mlx_btag, sc->mlx_bhandle, MLX_V4_IDBR, val)
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#define MLX_V4_GET_ODBR(sc) bus_space_read_4 (sc->mlx_btag, sc->mlx_bhandle, MLX_V4_ODBR)
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#define MLX_V4_PUT_ODBR(sc, val) bus_space_write_4(sc->mlx_btag, sc->mlx_bhandle, MLX_V4_ODBR, val)
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#define MLX_V4_PUT_IER(sc, val) bus_space_write_4(sc->mlx_btag, sc->mlx_bhandle, MLX_V4_IER, val)
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#define MLX_V4_IDB_FULL (1<<0) /* mailbox is full */
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#define MLX_V4_IDB_HWMBOX_CMD (1<<0) /* posted hardware mailbox command */
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#define MLX_V4_IDB_SACK (1<<1) /* acknowledge status read */
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#define MLX_V4_IDB_MEMMBOX_CMD (1<<4) /* posted memory mailbox command */
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#define MLX_V4_ODB_HWSAVAIL (1<<0) /* status is available for hardware mailbox */
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#define MLX_V4_ODB_MEMSAVAIL (1<<1) /* status is available for memory mailbox */
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#define MLX_V4_ODB_HWMBOX_ACK (1<<0) /* ack status read from hardware mailbox */
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#define MLX_V4_ODB_MEMMBOX_ACK (1<<1) /* ack status read from memory mailbox */
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#define MLX_V4_IER_MASK 0xfb /* message unit interrupt mask */
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#define MLX_V4_IER_DISINT (1<<2) /* interrupt disable bit */
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/*
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* Scatter-gather list format, type 1, kind 00.
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*/
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struct mlx_sgentry
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{
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u_int32_t sg_addr;
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u_int32_t sg_count;
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} __attribute__ ((packed));
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/*
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* Command result buffers, as placed in system memory by the controller.
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*/
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struct mlx_enquiry /* MLX_CMD_ENQUIRY */
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{
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u_int8_t me_num_sys_drvs;
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u_int8_t res1[3];
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u_int32_t me_drvsize[32];
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u_int16_t me_flash_age;
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u_int8_t me_status_flags;
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#define MLX_ENQ_SFLAG_DEFWRERR (1<<0) /* deferred write error indicator */
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#define MLX_ENQ_SFLAG_BATTLOW (1<<1) /* battery low */
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u_int8_t res2;
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u_int8_t me_fwminor;
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u_int8_t me_fwmajor;
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u_int8_t me_rebuild_flag;
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u_int8_t me_max_commands;
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u_int8_t me_offline_sd_count;
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u_int8_t res3;
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u_int16_t me_event_log_seq_num;
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u_int8_t me_critical_sd_count;
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u_int8_t res4[3];
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u_int8_t me_dead_count;
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u_int8_t res5;
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u_int8_t me_rebuild_count;
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u_int8_t me_misc_flags;
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#define MLX_ENQ_MISC_BBU (1<<3) /* battery backup present */
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struct
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{
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u_int8_t dd_targ;
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u_int8_t dd_chan;
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} __attribute__ ((packed)) me_dead[20];
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} __attribute__ ((packed));
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struct mlx_enquiry2 /* MLX_CMD_ENQUIRY2 */
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{
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u_int32_t me_hardware_id;
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u_int32_t me_firmware_id;
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u_int32_t res1;
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u_int8_t me_configured_channels;
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u_int8_t me_actual_channels;
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u_int8_t me_max_targets;
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u_int8_t me_max_tags;
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u_int8_t me_max_sys_drives;
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u_int8_t me_max_arms;
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u_int8_t me_max_spans;
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u_int8_t res2;
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u_int32_t res3;
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u_int32_t me_mem_size;
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u_int32_t me_cache_size;
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u_int32_t me_flash_size;
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u_int32_t me_nvram_size;
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u_int16_t me_mem_type;
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u_int16_t me_clock_speed;
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u_int16_t me_mem_speed;
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u_int16_t me_hardware_speed;
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u_int8_t res4[10];
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u_int16_t me_max_commands;
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u_int16_t me_max_sg;
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u_int16_t me_max_dp;
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u_int16_t me_max_iod;
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u_int16_t me_max_comb;
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u_int8_t me_latency;
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u_int8_t res5;
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u_int8_t me_scsi_timeout;
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u_int8_t res6;
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u_int16_t me_min_freelines;
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u_int8_t res7[8];
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u_int8_t me_rate_const;
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u_int8_t res8[11];
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u_int16_t me_physblk;
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u_int16_t me_logblk;
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u_int16_t me_maxblk;
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u_int16_t me_blocking_factor;
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u_int16_t me_cacheline;
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u_int8_t me_scsi_cap;
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u_int8_t res9[5];
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u_int16_t me_fimware_build;
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u_int8_t me_fault_mgmt_type;
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u_int8_t res10;
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u_int32_t me_firmware_features;
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u_int8_t res11[8];
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} __attribute__ ((packed));
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struct mlx_enq_sys_drive /* MLX_CMD_ENQSYSDRIVE returns an array of 32 of these */
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{
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u_int32_t sd_size;
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u_int8_t sd_state;
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u_int8_t sd_raidlevel;
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u_int16_t res1;
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} __attribute__ ((packed));
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struct mlx_eventlog_entry /* MLX_CMD_LOGOP/MLX_LOGOP_GET */
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{
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u_int8_t el_type;
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u_int8_t el_length;
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u_char el_target:5;
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u_char el_channel:3;
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u_char el_lun:6;
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u_char res1:2;
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u_int16_t el_seqno;
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u_char el_errorcode:7;
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u_char el_valid:1;
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u_int8_t el_segment;
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u_char el_sensekey:4;
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u_char res2:1;
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u_char el_ILI:1;
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u_char el_EOM:1;
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u_char el_filemark:1;
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u_int8_t el_information[4];
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u_int8_t el_addsense;
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u_int8_t el_csi[4];
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u_int8_t el_asc;
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u_int8_t el_asq;
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u_int8_t res3[12];
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} __attribute__ ((packed));
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#define MLX_LOGOP_GET 0x00 /* operation codes for MLX_CMD_LOGOP */
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#define MLX_LOGMSG_SENSE 0x00 /* log message contents codes */
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struct mlx_rebuild_stat /* MLX_CMD_REBUILDSTAT */
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{
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u_int32_t rb_drive;
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u_int32_t rb_size;
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u_int32_t rb_remaining;
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} __attribute__ ((packed));
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/*
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* Inlines to build various command structures
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*/
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static __inline void
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mlx_make_type1(struct mlx_command *mc,
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u_int8_t code,
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u_int16_t f1,
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u_int32_t f2,
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u_int8_t f3,
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u_int32_t f4,
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u_int8_t f5)
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{
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mc->mc_mailbox[0x0] = code;
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mc->mc_mailbox[0x2] = f1 & 0xff;
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mc->mc_mailbox[0x3] = (((f2 >> 24) & 0x3) << 6) | ((f1 >> 8) & 0x3f);
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mc->mc_mailbox[0x4] = f2 & 0xff;
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mc->mc_mailbox[0x5] = (f2 >> 8) & 0xff;
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mc->mc_mailbox[0x6] = (f2 >> 16) & 0xff;
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mc->mc_mailbox[0x7] = f3;
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mc->mc_mailbox[0x8] = f4 & 0xff;
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mc->mc_mailbox[0x9] = (f4 >> 8) & 0xff;
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mc->mc_mailbox[0xa] = (f4 >> 16) & 0xff;
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mc->mc_mailbox[0xb] = (f4 >> 24) & 0xff;
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mc->mc_mailbox[0xc] = f5;
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}
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static __inline void
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mlx_make_type2(struct mlx_command *mc,
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u_int8_t code,
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u_int8_t f1,
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u_int8_t f2,
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u_int8_t f3,
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u_int8_t f4,
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u_int8_t f5,
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u_int8_t f6,
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u_int32_t f7,
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u_int8_t f8)
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{
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mc->mc_mailbox[0x0] = code;
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mc->mc_mailbox[0x2] = f1;
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mc->mc_mailbox[0x3] = f2;
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mc->mc_mailbox[0x4] = f3;
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mc->mc_mailbox[0x5] = f4;
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mc->mc_mailbox[0x6] = f5;
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mc->mc_mailbox[0x7] = f6;
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mc->mc_mailbox[0x8] = f7 & 0xff;
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mc->mc_mailbox[0x9] = (f7 >> 8) & 0xff;
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mc->mc_mailbox[0xa] = (f7 >> 16) & 0xff;
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mc->mc_mailbox[0xb] = (f7 >> 24) & 0xff;
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mc->mc_mailbox[0xc] = f8;
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}
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static __inline void
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mlx_make_type3(struct mlx_command *mc,
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u_int8_t code,
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u_int8_t f1,
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u_int8_t f2,
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u_int16_t f3,
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u_int8_t f4,
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u_int8_t f5,
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u_int32_t f6,
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u_int8_t f7)
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{
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mc->mc_mailbox[0x0] = code;
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mc->mc_mailbox[0x2] = f1;
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mc->mc_mailbox[0x3] = f2;
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mc->mc_mailbox[0x4] = f3 & 0xff;
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mc->mc_mailbox[0x5] = (f3 >> 8) & 0xff;
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mc->mc_mailbox[0x6] = f4;
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mc->mc_mailbox[0x7] = f5;
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mc->mc_mailbox[0x8] = f6 & 0xff;
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mc->mc_mailbox[0x9] = (f6 >> 8) & 0xff;
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mc->mc_mailbox[0xa] = (f6 >> 16) & 0xff;
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mc->mc_mailbox[0xb] = (f6 >> 24) & 0xff;
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mc->mc_mailbox[0xc] = f7;
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}
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static __inline void
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mlx_make_type4(struct mlx_command *mc,
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u_int8_t code,
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u_int16_t f1,
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u_int32_t f2,
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u_int32_t f3,
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u_int8_t f4)
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{
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mc->mc_mailbox[0x0] = code;
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mc->mc_mailbox[0x2] = f1 & 0xff;
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mc->mc_mailbox[0x3] = (f1 >> 8) & 0xff;
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mc->mc_mailbox[0x4] = f2 & 0xff;
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mc->mc_mailbox[0x5] = (f2 >> 8) & 0xff;
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mc->mc_mailbox[0x6] = (f2 >> 16) & 0xff;
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mc->mc_mailbox[0x7] = (f2 >> 24) & 0xff;
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mc->mc_mailbox[0x8] = f3 & 0xff;
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mc->mc_mailbox[0x9] = (f3 >> 8) & 0xff;
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mc->mc_mailbox[0xa] = (f3 >> 16) & 0xff;
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mc->mc_mailbox[0xb] = (f3 >> 24) & 0xff;
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mc->mc_mailbox[0xc] = f4;
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}
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static __inline void
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mlx_make_type5(struct mlx_command *mc,
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u_int8_t code,
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u_int8_t f1,
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u_int8_t f2,
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u_int32_t f3,
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u_int32_t f4,
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u_int8_t f5)
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{
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mc->mc_mailbox[0x0] = code;
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mc->mc_mailbox[0x2] = f1;
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mc->mc_mailbox[0x3] = f2;
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mc->mc_mailbox[0x4] = f3 & 0xff;
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mc->mc_mailbox[0x5] = (f3 >> 8) & 0xff;
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mc->mc_mailbox[0x6] = (f3 >> 16) & 0xff;
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mc->mc_mailbox[0x7] = (f3 >> 24) & 0xff;
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mc->mc_mailbox[0x8] = f4 & 0xff;
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mc->mc_mailbox[0x9] = (f4 >> 8) & 0xff;
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mc->mc_mailbox[0xa] = (f4 >> 16) & 0xff;
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mc->mc_mailbox[0xb] = (f4 >> 24) & 0xff;
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mc->mc_mailbox[0xc] = f5;
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}
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