13ac67a784
list. Use the new internals to simplify adding transaction context elements, and in future diffs, more complicated SGLs.
378 lines
10 KiB
C
378 lines
10 KiB
C
/*-
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* Copyright (c) 2009 Yahoo! Inc.
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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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#ifndef _MPSVAR_H
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#define _MPSVAR_H
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#define MPS_DB_MAX_WAIT 2500
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#define MPS_REQ_FRAMES 1024
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#define MPS_EVT_REPLY_FRAMES 32
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#define MPS_REPLY_FRAMES MPS_REQ_FRAMES
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#define MPS_CHAIN_FRAMES 1024
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#define MPS_SENSE_LEN SSD_FULL_SIZE
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#define MPS_MSI_COUNT 1
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#define MPS_SGE64_SIZE 12
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#define MPS_SGE32_SIZE 8
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#define MPS_SGC_SIZE 8
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#define MPS_PERIODIC_DELAY 1 /* 1 second heartbeat/watchdog check */
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struct mps_softc;
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struct mps_command;
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struct mpssas_softc;
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struct mpssas_target;
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MALLOC_DECLARE(M_MPT2);
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typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t,
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MPI2_EVENT_NOTIFICATION_REPLY *reply);
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typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm);
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struct mps_chain {
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TAILQ_ENTRY(mps_chain) chain_link;
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MPI2_SGE_IO_UNION *chain;
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uint32_t chain_busaddr;
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};
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struct mps_command {
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TAILQ_ENTRY(mps_command) cm_link;
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struct mps_softc *cm_sc;
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void *cm_data;
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u_int cm_length;
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u_int cm_sglsize;
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MPI2_SGE_IO_UNION *cm_sge;
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uint8_t *cm_req;
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uint8_t *cm_reply;
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uint32_t cm_reply_data;
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mps_command_callback_t *cm_complete;
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void *cm_complete_data;
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struct mpssas_target *cm_targ;
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MPI2_REQUEST_DESCRIPTOR_UNION cm_desc;
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u_int cm_flags;
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#define MPS_CM_FLAGS_POLLED (1 << 0)
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#define MPS_CM_FLAGS_COMPLETE (1 << 1)
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#define MPS_CM_FLAGS_SGE_SIMPLE (1 << 2)
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#define MPS_CM_FLAGS_DATAOUT (1 << 3)
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#define MPS_CM_FLAGS_DATAIN (1 << 4)
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#define MPS_CM_FLAGS_WAKEUP (1 << 5)
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#define MPS_CM_FLAGS_ACTIVE (1 << 6)
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u_int cm_state;
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#define MPS_CM_STATE_FREE 0
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#define MPS_CM_STATE_BUSY 1
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#define MPS_CM_STATE_TIMEDOUT 2
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bus_dmamap_t cm_dmamap;
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struct scsi_sense_data *cm_sense;
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TAILQ_HEAD(, mps_chain) cm_chain_list;
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uint32_t cm_req_busaddr;
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uint32_t cm_sense_busaddr;
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struct callout cm_callout;
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};
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struct mps_event_handle {
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TAILQ_ENTRY(mps_event_handle) eh_list;
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mps_evt_callback_t *callback;
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void *data;
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uint8_t mask[16];
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};
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struct mps_softc {
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device_t mps_dev;
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struct cdev *mps_cdev;
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u_int mps_flags;
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#define MPS_FLAGS_INTX (1 << 0)
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#define MPS_FLAGS_MSI (1 << 1)
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#define MPS_FLAGS_BUSY (1 << 2)
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#define MPS_FLAGS_SHUTDOWN (1 << 3)
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u_int mps_debug;
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u_int allow_multiple_tm_cmds;
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int tm_cmds_active;
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struct sysctl_ctx_list sysctl_ctx;
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struct sysctl_oid *sysctl_tree;
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struct mps_command *commands;
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struct mps_chain *chains;
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struct callout periodic;
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struct mpssas_softc *sassc;
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TAILQ_HEAD(, mps_command) req_list;
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TAILQ_HEAD(, mps_chain) chain_list;
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TAILQ_HEAD(, mps_command) tm_list;
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int replypostindex;
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int replyfreeindex;
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int replycurindex;
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struct resource *mps_regs_resource;
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bus_space_handle_t mps_bhandle;
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bus_space_tag_t mps_btag;
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int mps_regs_rid;
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bus_dma_tag_t mps_parent_dmat;
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bus_dma_tag_t buffer_dmat;
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MPI2_IOC_FACTS_REPLY *facts;
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MPI2_PORT_FACTS_REPLY *pfacts;
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int num_reqs;
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int num_replies;
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int fqdepth; /* Free queue */
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int pqdepth; /* Post queue */
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uint8_t event_mask[16];
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TAILQ_HEAD(, mps_event_handle) event_list;
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struct mps_event_handle *mps_log_eh;
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struct mtx mps_mtx;
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struct intr_config_hook mps_ich;
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struct resource *mps_irq[MPS_MSI_COUNT];
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void *mps_intrhand[MPS_MSI_COUNT];
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int mps_irq_rid[MPS_MSI_COUNT];
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uint8_t *req_frames;
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bus_addr_t req_busaddr;
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bus_dma_tag_t req_dmat;
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bus_dmamap_t req_map;
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uint8_t *reply_frames;
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bus_addr_t reply_busaddr;
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bus_dma_tag_t reply_dmat;
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bus_dmamap_t reply_map;
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struct scsi_sense_data *sense_frames;
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bus_addr_t sense_busaddr;
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bus_dma_tag_t sense_dmat;
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bus_dmamap_t sense_map;
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uint8_t *chain_frames;
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bus_addr_t chain_busaddr;
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bus_dma_tag_t chain_dmat;
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bus_dmamap_t chain_map;
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MPI2_REPLY_DESCRIPTORS_UNION *post_queue;
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bus_addr_t post_busaddr;
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uint32_t *free_queue;
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bus_addr_t free_busaddr;
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bus_dma_tag_t queues_dmat;
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bus_dmamap_t queues_map;
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};
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struct mps_config_params {
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MPI2_CONFIG_EXT_PAGE_HEADER_UNION hdr;
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u_int action;
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u_int page_address; /* Attributes, not a phys address */
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u_int status;
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void *buffer;
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u_int length;
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int timeout;
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void (*callback)(struct mps_softc *, struct mps_config_params *);
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void *cbdata;
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};
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static __inline uint32_t
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mps_regread(struct mps_softc *sc, uint32_t offset)
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{
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return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
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}
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static __inline void
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mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
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{
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bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
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}
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static __inline void
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mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
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{
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if (++sc->replyfreeindex >= sc->fqdepth)
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sc->replyfreeindex = 0;
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sc->free_queue[sc->replyfreeindex] = busaddr;
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mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
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}
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static __inline struct mps_chain *
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mps_alloc_chain(struct mps_softc *sc)
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{
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struct mps_chain *chain;
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if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL)
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TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
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return (chain);
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}
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static __inline void
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mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
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{
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#if 0
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bzero(chain->chain, 128);
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#endif
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TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
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}
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static __inline void
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mps_free_command(struct mps_softc *sc, struct mps_command *cm)
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{
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struct mps_chain *chain, *chain_temp;
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if (cm->cm_reply != NULL)
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mps_free_reply(sc, cm->cm_reply_data);
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cm->cm_flags = 0;
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cm->cm_complete = NULL;
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cm->cm_complete_data = NULL;
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cm->cm_targ = 0;
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cm->cm_state = MPS_CM_STATE_FREE;
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TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
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TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
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mps_free_chain(sc, chain);
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}
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TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
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}
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static __inline struct mps_command *
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mps_alloc_command(struct mps_softc *sc)
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{
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struct mps_command *cm;
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cm = TAILQ_FIRST(&sc->req_list);
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if (cm == NULL)
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return (NULL);
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TAILQ_REMOVE(&sc->req_list, cm, cm_link);
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KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n"));
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cm->cm_state = MPS_CM_STATE_BUSY;
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return (cm);
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}
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static __inline void
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mps_lock(struct mps_softc *sc)
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{
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mtx_lock(&sc->mps_mtx);
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}
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static __inline void
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mps_unlock(struct mps_softc *sc)
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{
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mtx_unlock(&sc->mps_mtx);
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}
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#define MPS_INFO (1 << 0)
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#define MPS_TRACE (1 << 1)
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#define MPS_FAULT (1 << 2)
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#define MPS_EVENT (1 << 3)
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#define MPS_LOG (1 << 4)
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#define mps_printf(sc, args...) \
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device_printf((sc)->mps_dev, ##args)
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#define mps_dprint(sc, level, msg, args...) \
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do { \
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if (sc->mps_debug & level) \
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device_printf(sc->mps_dev, msg, ##args); \
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} while (0)
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#define mps_dprint_field(sc, level, msg, args...) \
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do { \
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if (sc->mps_debug & level) \
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printf("\t" msg, ##args); \
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} while (0)
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#define MPS_PRINTFIELD_START(sc, tag...) \
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mps_dprint((sc), MPS_INFO, ##tag); \
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mps_dprint_field((sc), MPS_INFO, ":\n")
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#define MPS_PRINTFIELD_END(sc, tag) \
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mps_dprint((sc), MPS_INFO, tag "\n")
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#define MPS_PRINTFIELD(sc, facts, attr, fmt) \
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mps_dprint_field((sc), MPS_INFO, #attr ": " #fmt "\n", (facts)->attr)
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#define MPS_EVENTFIELD_START(sc, tag...) \
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mps_dprint((sc), MPS_EVENT, ##tag); \
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mps_dprint_field((sc), MPS_EVENT, ":\n")
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#define MPS_EVENTFIELD(sc, facts, attr, fmt) \
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mps_dprint_field((sc), MPS_EVENT, #attr ": " #fmt "\n", (facts)->attr)
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static __inline void
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mps_from_u64(uint64_t data, U64 *mps)
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{
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(mps)->High = (uint32_t)((data) >> 32);
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(mps)->Low = (uint32_t)((data) & 0xffffffff);
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}
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static __inline uint64_t
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mps_to_u64(U64 *data)
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{
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return (((uint64_t)data->High << 32) | data->Low);
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}
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static __inline void
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mps_mask_intr(struct mps_softc *sc)
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{
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uint32_t mask;
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mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
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mask |= MPI2_HIM_REPLY_INT_MASK;
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mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
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}
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static __inline void
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mps_unmask_intr(struct mps_softc *sc)
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{
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uint32_t mask;
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mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
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mask &= ~MPI2_HIM_REPLY_INT_MASK;
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mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
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}
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int mps_pci_setup_interrupts(struct mps_softc *);
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int mps_attach(struct mps_softc *sc);
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int mps_free(struct mps_softc *sc);
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void mps_intr(void *);
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void mps_intr_msi(void *);
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void mps_intr_locked(void *);
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int mps_register_events(struct mps_softc *, uint8_t *, mps_evt_callback_t *,
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void *, struct mps_event_handle **);
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int mps_update_events(struct mps_softc *, struct mps_event_handle *, uint8_t *);
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int mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
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int mps_request_polled(struct mps_softc *sc, struct mps_command *cm);
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void mps_enqueue_request(struct mps_softc *, struct mps_command *);
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int mps_push_sge(struct mps_command *, void *, size_t, int);
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int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int);
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int mps_attach_sas(struct mps_softc *sc);
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int mps_detach_sas(struct mps_softc *sc);
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int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
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int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
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int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
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void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
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int mps_attach_user(struct mps_softc *);
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void mps_detach_user(struct mps_softc *);
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SYSCTL_DECL(_hw_mps);
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#endif
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