From 5f412602ded57bbdce614685eba915f6042dda1d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Fri, 31 Dec 2021 11:13:34 +0100 Subject: hw/scsi: Rename SCSIRequest::resid as 'residual' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The 'resid' field is slightly confusing and could be interpreted as some ID. Rename it as 'residual' which is clearer to review. No logical change. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Reviewed-by: David Hildenbrand Message-Id: <20220111184309.28637-8-f4bug@amsat.org> Signed-off-by: Philippe Mathieu-Daudé --- hw/scsi/megasas.c | 42 +++++++++++++++++++++++++----------------- hw/scsi/scsi-bus.c | 10 +++++----- hw/scsi/scsi-disk.c | 4 ++-- include/hw/scsi/scsi.h | 4 ++-- softmmu/dma-helpers.c | 26 +++++++++++++------------- 5 files changed, 47 insertions(+), 39 deletions(-) diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index dc9bbdb740..cb01954937 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -1045,7 +1045,8 @@ static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun, uint64_t pd_size; uint16_t pd_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF); uint8_t cmdbuf[6]; - size_t len, resid; + size_t len; + size_t residual; if (!cmd->iov_buf) { cmd->iov_buf = g_malloc0(dcmd_size); @@ -1112,9 +1113,10 @@ static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun, info->connected_port_bitmap = 0x1; info->device_speed = 1; info->link_speed = 1; - resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); + residual = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg, + MEMTXATTRS_UNSPECIFIED); g_free(cmd->iov_buf); - cmd->iov_size = dcmd_size - resid; + cmd->iov_size = dcmd_size - residual; cmd->iov_buf = NULL; return MFI_STAT_OK; } @@ -1149,7 +1151,8 @@ static int megasas_dcmd_pd_get_info(MegasasState *s, MegasasCmd *cmd) static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd) { struct mfi_ld_list info; - size_t dcmd_size = sizeof(info), resid; + size_t dcmd_size = sizeof(info); + size_t residual; uint32_t num_ld_disks = 0, max_ld_disks; uint64_t ld_size; BusChild *kid; @@ -1184,8 +1187,9 @@ static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd) info.ld_count = cpu_to_le32(num_ld_disks); trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks); - resid = dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); - cmd->iov_size = dcmd_size - resid; + residual = dma_buf_read(&info, dcmd_size, &cmd->qsg, + MEMTXATTRS_UNSPECIFIED); + cmd->iov_size = dcmd_size - residual; return MFI_STAT_OK; } @@ -1193,7 +1197,8 @@ static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd) { uint16_t flags; struct mfi_ld_targetid_list info; - size_t dcmd_size = sizeof(info), resid; + size_t dcmd_size = sizeof(info); + size_t residual; uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns; BusChild *kid; @@ -1233,8 +1238,9 @@ static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd) info.size = dcmd_size; trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks); - resid = dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); - cmd->iov_size = dcmd_size - resid; + residual = dma_buf_read(&info, dcmd_size, &cmd->qsg, + MEMTXATTRS_UNSPECIFIED); + cmd->iov_size = dcmd_size - residual; return MFI_STAT_OK; } @@ -1244,7 +1250,8 @@ static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun, struct mfi_ld_info *info = cmd->iov_buf; size_t dcmd_size = sizeof(struct mfi_ld_info); uint8_t cdb[6]; - ssize_t len, resid; + ssize_t len; + size_t residual; uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF); uint64_t ld_size; @@ -1283,9 +1290,10 @@ static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun, info->ld_config.span[0].num_blocks = info->size; info->ld_config.span[0].array_ref = cpu_to_le16(sdev_id); - resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); + residual = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg, + MEMTXATTRS_UNSPECIFIED); g_free(cmd->iov_buf); - cmd->iov_size = dcmd_size - resid; + cmd->iov_size = dcmd_size - residual; cmd->iov_buf = NULL; return MFI_STAT_OK; } @@ -1617,13 +1625,13 @@ static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd) } static int megasas_finish_internal_dcmd(MegasasCmd *cmd, - SCSIRequest *req, size_t resid) + SCSIRequest *req, size_t residual) { int retval = MFI_STAT_OK; int lun = req->lun; trace_megasas_dcmd_internal_finish(cmd->index, cmd->dcmd_opcode, lun); - cmd->iov_size -= resid; + cmd->iov_size -= residual; switch (cmd->dcmd_opcode) { case MFI_DCMD_PD_GET_INFO: retval = megasas_pd_get_info_submit(req->dev, lun, cmd); @@ -1865,12 +1873,12 @@ static void megasas_xfer_complete(SCSIRequest *req, uint32_t len) } } -static void megasas_command_complete(SCSIRequest *req, size_t resid) +static void megasas_command_complete(SCSIRequest *req, size_t residual) { MegasasCmd *cmd = req->hba_private; uint8_t cmd_status = MFI_STAT_OK; - trace_megasas_command_complete(cmd->index, req->status, resid); + trace_megasas_command_complete(cmd->index, req->status, residual); if (req->io_canceled) { return; @@ -1880,7 +1888,7 @@ static void megasas_command_complete(SCSIRequest *req, size_t resid) /* * Internal command complete */ - cmd_status = megasas_finish_internal_dcmd(cmd, req, resid); + cmd_status = megasas_finish_internal_dcmd(cmd, req, residual); if (cmd_status == MFI_STAT_INVALID_STATUS) { return; } diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index 2b5e9dca31..3466e680ac 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -760,7 +760,7 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun, } req->cmd = cmd; - req->resid = req->cmd.xfer; + req->residual = req->cmd.xfer; switch (buf[0]) { case INQUIRY: @@ -1408,7 +1408,7 @@ void scsi_req_data(SCSIRequest *req, int len) trace_scsi_req_data(req->dev->id, req->lun, req->tag, len); assert(req->cmd.mode != SCSI_XFER_NONE); if (!req->sg) { - req->resid -= len; + req->residual -= len; req->bus->info->transfer_data(req, len); return; } @@ -1421,9 +1421,9 @@ void scsi_req_data(SCSIRequest *req, int len) buf = scsi_req_get_buf(req); if (req->cmd.mode == SCSI_XFER_FROM_DEV) { - req->resid = dma_buf_read(buf, len, req->sg, MEMTXATTRS_UNSPECIFIED); + req->residual = dma_buf_read(buf, len, req->sg, MEMTXATTRS_UNSPECIFIED); } else { - req->resid = dma_buf_write(buf, len, req->sg, MEMTXATTRS_UNSPECIFIED); + req->residual = dma_buf_write(buf, len, req->sg, MEMTXATTRS_UNSPECIFIED); } scsi_req_continue(req); } @@ -1512,7 +1512,7 @@ void scsi_req_complete(SCSIRequest *req, int status) scsi_req_ref(req); scsi_req_dequeue(req); - req->bus->info->complete(req, req->resid); + req->bus->info->complete(req, req->residual); /* Cancelled requests might end up being completed instead of cancelled */ notifier_list_notify(&req->cancel_notifiers, req); diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index d4914178ea..9c0dc7b946 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -420,7 +420,7 @@ static void scsi_do_read(SCSIDiskReq *r, int ret) if (r->req.sg) { dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_READ); - r->req.resid -= r->req.sg->size; + r->req.residual -= r->req.sg->size; r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), r->req.sg, r->sector << BDRV_SECTOR_BITS, BDRV_SECTOR_SIZE, @@ -580,7 +580,7 @@ static void scsi_write_data(SCSIRequest *req) if (r->req.sg) { dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_WRITE); - r->req.resid -= r->req.sg->size; + r->req.residual -= r->req.sg->size; r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), r->req.sg, r->sector << BDRV_SECTOR_BITS, BDRV_SECTOR_SIZE, diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h index 2ef80af6dc..b27d133b11 100644 --- a/include/hw/scsi/scsi.h +++ b/include/hw/scsi/scsi.h @@ -30,7 +30,7 @@ struct SCSIRequest { int16_t status; int16_t host_status; void *hba_private; - size_t resid; + size_t residual; SCSICommand cmd; NotifierList cancel_notifiers; @@ -125,7 +125,7 @@ struct SCSIBusInfo { void *hba_private); void (*transfer_data)(SCSIRequest *req, uint32_t arg); void (*fail)(SCSIRequest *req); - void (*complete)(SCSIRequest *req, size_t resid); + void (*complete)(SCSIRequest *req, size_t residual); void (*cancel)(SCSIRequest *req); void (*change)(SCSIBus *bus, SCSIDevice *dev, SCSISense sense); QEMUSGList *(*get_sg_list)(SCSIRequest *req); diff --git a/softmmu/dma-helpers.c b/softmmu/dma-helpers.c index b0be156479..4563a775aa 100644 --- a/softmmu/dma-helpers.c +++ b/softmmu/dma-helpers.c @@ -294,49 +294,49 @@ BlockAIOCB *dma_blk_write(BlockBackend *blk, } -static MemTxResult dma_buf_rw(void *buf, int32_t len, uint64_t *residp, +static MemTxResult dma_buf_rw(void *buf, int32_t len, uint64_t *residual, QEMUSGList *sg, DMADirection dir, MemTxAttrs attrs) { uint8_t *ptr = buf; - uint64_t resid; + uint64_t xresidual; int sg_cur_index; MemTxResult res = MEMTX_OK; - resid = sg->size; + xresidual = sg->size; sg_cur_index = 0; - len = MIN(len, resid); + len = MIN(len, xresidual); while (len > 0) { ScatterGatherEntry entry = sg->sg[sg_cur_index++]; int32_t xfer = MIN(len, entry.len); res |= dma_memory_rw(sg->as, entry.base, ptr, xfer, dir, attrs); ptr += xfer; len -= xfer; - resid -= xfer; + xresidual -= xfer; } - if (residp) { - *residp = resid; + if (residual) { + *residual = xresidual; } return res; } uint64_t dma_buf_read(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs) { - uint64_t resid; + uint64_t residual; - dma_buf_rw(ptr, len, &resid, sg, DMA_DIRECTION_FROM_DEVICE, attrs); + dma_buf_rw(ptr, len, &residual, sg, DMA_DIRECTION_FROM_DEVICE, attrs); - return resid; + return residual; } uint64_t dma_buf_write(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs) { - uint64_t resid; + uint64_t residual; - dma_buf_rw(ptr, len, &resid, sg, DMA_DIRECTION_TO_DEVICE, attrs); + dma_buf_rw(ptr, len, &residual, sg, DMA_DIRECTION_TO_DEVICE, attrs); - return resid; + return residual; } void dma_acct_start(BlockBackend *blk, BlockAcctCookie *cookie, -- cgit v1.2.3