From 8869e103979e499babe73488abe1f9c935746a60 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 12 Oct 2011 12:49:35 +0200 Subject: scsi-generic: drop SCSIGenericState It is not needed, because s->bs is already stored in SCSIDevice, and can be reached from the conf.bs member. Signed-off-by: Paolo Bonzini Signed-off-by: Kevin Wolf --- hw/scsi-generic.c | 90 +++++++++++++++++++++++++------------------------------ 1 file changed, 40 insertions(+), 50 deletions(-) diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c index 8f6b70d..4af0f24 100644 --- a/hw/scsi-generic.c +++ b/hw/scsi-generic.c @@ -46,8 +46,6 @@ do { fprintf(stderr, "scsi-generic: " fmt , ## __VA_ARGS__); } while (0) #define MAX_UINT ((unsigned int)-1) #endif -typedef struct SCSIGenericState SCSIGenericState; - typedef struct SCSIGenericReq { SCSIRequest req; uint8_t *buf; @@ -56,12 +54,6 @@ typedef struct SCSIGenericReq { sg_io_hdr_t io_header; } SCSIGenericReq; -struct SCSIGenericState -{ - SCSIDevice qdev; - BlockDriverState *bs; -}; - static void scsi_free_request(SCSIRequest *req) { SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req); @@ -174,7 +166,7 @@ static void scsi_read_complete(void * opaque, int ret) static void scsi_read_data(SCSIRequest *req) { SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req); - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, r->req.dev); + SCSIDevice *s = r->req.dev; int ret; DPRINTF("scsi_read_data 0x%x\n", req->tag); @@ -183,17 +175,16 @@ static void scsi_read_data(SCSIRequest *req) return; } - ret = execute_command(s->bs, r, SG_DXFER_FROM_DEV, scsi_read_complete); + ret = execute_command(s->conf.bs, r, SG_DXFER_FROM_DEV, scsi_read_complete); if (ret < 0) { scsi_command_complete(r, ret); - return; } } static void scsi_write_complete(void * opaque, int ret) { SCSIGenericReq *r = (SCSIGenericReq *)opaque; - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, r->req.dev); + SCSIDevice *s = r->req.dev; DPRINTF("scsi_write_complete() ret = %d\n", ret); r->req.aiocb = NULL; @@ -204,9 +195,9 @@ static void scsi_write_complete(void * opaque, int ret) } if (r->req.cmd.buf[0] == MODE_SELECT && r->req.cmd.buf[4] == 12 && - s->qdev.type == TYPE_TAPE) { - s->qdev.blocksize = (r->buf[9] << 16) | (r->buf[10] << 8) | r->buf[11]; - DPRINTF("block size %d\n", s->qdev.blocksize); + s->type == TYPE_TAPE) { + s->blocksize = (r->buf[9] << 16) | (r->buf[10] << 8) | r->buf[11]; + DPRINTF("block size %d\n", s->blocksize); } scsi_command_complete(r, ret); @@ -216,8 +207,8 @@ static void scsi_write_complete(void * opaque, int ret) The transfer may complete asynchronously. */ static void scsi_write_data(SCSIRequest *req) { - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, req->dev); SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req); + SCSIDevice *s = r->req.dev; int ret; DPRINTF("scsi_write_data 0x%x\n", req->tag); @@ -227,7 +218,7 @@ static void scsi_write_data(SCSIRequest *req) return; } - ret = execute_command(s->bs, r, SG_DXFER_TO_DEV, scsi_write_complete); + ret = execute_command(s->conf.bs, r, SG_DXFER_TO_DEV, scsi_write_complete); if (ret < 0) { scsi_command_complete(r, ret); } @@ -261,8 +252,8 @@ static void scsi_req_fixup(SCSIRequest *req) static int32_t scsi_send_command(SCSIRequest *req, uint8_t *cmd) { - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, req->dev); SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req); + SCSIDevice *s = r->req.dev; int ret; scsi_req_fixup(&r->req); @@ -285,7 +276,7 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *cmd) g_free(r->buf); r->buflen = 0; r->buf = NULL; - ret = execute_command(s->bs, r, SG_DXFER_NONE, scsi_command_complete); + ret = execute_command(s->conf.bs, r, SG_DXFER_NONE, scsi_command_complete); if (ret < 0) { scsi_command_complete(r, ret); return 0; @@ -373,77 +364,76 @@ static int get_stream_blocksize(BlockDriverState *bdrv) static void scsi_generic_reset(DeviceState *dev) { - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev.qdev, dev); + SCSIDevice *s = DO_UPCAST(SCSIDevice, qdev, dev); - scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); + scsi_device_purge_requests(s, SENSE_CODE(RESET)); } -static void scsi_destroy(SCSIDevice *d) +static void scsi_destroy(SCSIDevice *s) { - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, d); - - scsi_device_purge_requests(&s->qdev, SENSE_CODE(NO_SENSE)); - blockdev_mark_auto_del(s->qdev.conf.bs); + scsi_device_purge_requests(s, SENSE_CODE(NO_SENSE)); + blockdev_mark_auto_del(s->conf.bs); } -static int scsi_generic_initfn(SCSIDevice *dev) +static int scsi_generic_initfn(SCSIDevice *s) { - SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, dev); int sg_version; struct sg_scsi_id scsiid; - if (!s->qdev.conf.bs) { + if (!s->conf.bs) { error_report("scsi-generic: drive property not set"); return -1; } - s->bs = s->qdev.conf.bs; /* check we are really using a /dev/sg* file */ - if (!bdrv_is_sg(s->bs)) { + if (!bdrv_is_sg(s->conf.bs)) { error_report("scsi-generic: not /dev/sg*"); return -1; } - if (bdrv_get_on_error(s->bs, 0) != BLOCK_ERR_STOP_ENOSPC) { + if (bdrv_get_on_error(s->conf.bs, 0) != BLOCK_ERR_STOP_ENOSPC) { error_report("Device doesn't support drive option werror"); return -1; } - if (bdrv_get_on_error(s->bs, 1) != BLOCK_ERR_REPORT) { + if (bdrv_get_on_error(s->conf.bs, 1) != BLOCK_ERR_REPORT) { error_report("Device doesn't support drive option rerror"); return -1; } /* check we are using a driver managing SG_IO (version 3 and after */ - if (bdrv_ioctl(s->bs, SG_GET_VERSION_NUM, &sg_version) < 0 || + if (bdrv_ioctl(s->conf.bs, SG_GET_VERSION_NUM, &sg_version) < 0 || sg_version < 30000) { error_report("scsi-generic: scsi generic interface too old"); return -1; } /* get LUN of the /dev/sg? */ - if (bdrv_ioctl(s->bs, SG_GET_SCSI_ID, &scsiid)) { + if (bdrv_ioctl(s->conf.bs, SG_GET_SCSI_ID, &scsiid)) { error_report("scsi-generic: SG_GET_SCSI_ID ioctl failed"); return -1; } /* define device state */ - s->qdev.type = scsiid.scsi_type; - DPRINTF("device type %d\n", s->qdev.type); - if (s->qdev.type == TYPE_TAPE) { - s->qdev.blocksize = get_stream_blocksize(s->bs); - if (s->qdev.blocksize == -1) - s->qdev.blocksize = 0; + s->type = scsiid.scsi_type; + DPRINTF("device type %d\n", s->type); + if (s->type == TYPE_TAPE) { + s->blocksize = get_stream_blocksize(s->conf.bs); + if (s->blocksize == -1) { + s->blocksize = 0; + } } else { - s->qdev.blocksize = get_blocksize(s->bs); + s->blocksize = get_blocksize(s->conf.bs); /* removable media returns 0 if not present */ - if (s->qdev.blocksize <= 0) { - if (s->qdev.type == TYPE_ROM || s->qdev.type == TYPE_WORM) - s->qdev.blocksize = 2048; - else - s->qdev.blocksize = 512; + if (s->blocksize <= 0) { + if (s->type == TYPE_ROM || s->type == TYPE_WORM) { + s->blocksize = 2048; + } else { + s->blocksize = 512; + } } } - DPRINTF("block size %d\n", s->qdev.blocksize); + + DPRINTF("block size %d\n", s->blocksize); return 0; } @@ -469,13 +459,13 @@ static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun, static SCSIDeviceInfo scsi_generic_info = { .qdev.name = "scsi-generic", .qdev.desc = "pass through generic scsi device (/dev/sg*)", - .qdev.size = sizeof(SCSIGenericState), + .qdev.size = sizeof(SCSIDevice), .qdev.reset = scsi_generic_reset, .init = scsi_generic_initfn, .destroy = scsi_destroy, .alloc_req = scsi_new_request, .qdev.props = (Property[]) { - DEFINE_BLOCK_PROPERTIES(SCSIGenericState, qdev.conf), + DEFINE_BLOCK_PROPERTIES(SCSIDevice, conf), DEFINE_PROP_END_OF_LIST(), }, }; 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