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dma: Let dma_buf_read() take MemTxAttrs argument 

Let devices specify transaction attributes when calling
dma_buf_read().

Keep the default MEMTXATTRS_UNSPECIFIED in the few callers.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211223115554.3155328-13-philmd@redhat.com>
pull/203/head
Philippe Mathieu-Daudé 5 years ago
parent
392e48af34
commit
1e5a3f8b2a
6 changed files with 19 additions and 20 deletions
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  1. 4
      hw/ide/ahci.c
  2. 2
      hw/nvme/ctrl.c
  3. 24
      hw/scsi/megasas.c
  4. 2
      hw/scsi/scsi-bus.c
  5. 2
      include/sysemu/dma.h
  6. 5
      softmmu/dma-helpers.c

4
hw/ide/ahci.c
View File

@ -1386,7 +1386,7 @@ static void ahci_pio_transfer(const IDEDMA *dma)
if (is_write) {
dma_buf_write(s->data_ptr, size, &s->sg, attrs);
} else {
dma_buf_read(s->data_ptr, size, &s->sg);
dma_buf_read(s->data_ptr, size, &s->sg, attrs);
}
}
@ -1479,7 +1479,7 @@ static int ahci_dma_rw_buf(const IDEDMA *dma, bool is_write)
}
if (is_write) {
dma_buf_read(p, l, &s->sg);
dma_buf_read(p, l, &s->sg, MEMTXATTRS_UNSPECIFIED);
} else {
dma_buf_write(p, l, &s->sg, MEMTXATTRS_UNSPECIFIED);
}

2
hw/nvme/ctrl.c
View File

@ -1152,7 +1152,7 @@ static uint16_t nvme_tx(NvmeCtrl *n, NvmeSg *sg, uint8_t *ptr, uint32_t len,
if (dir == NVME_TX_DIRECTION_TO_DEVICE) {
residual = dma_buf_write(ptr, len, &sg->qsg, attrs);
} else {
residual = dma_buf_read(ptr, len, &sg->qsg);
residual = dma_buf_read(ptr, len, &sg->qsg, attrs);
}
if (unlikely(residual)) {

24
hw/scsi/megasas.c
View File

@ -848,7 +848,7 @@ static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
MFI_INFO_PDMIX_SATA |
MFI_INFO_PDMIX_LD);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -878,7 +878,7 @@ static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd)
info.disable_preboot_cli = 1;
info.cluster_disable = 1;
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -899,7 +899,7 @@ static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd)
info.expose_all_drives = 1;
}
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -910,7 +910,7 @@ static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd)
fw_time = cpu_to_le64(megasas_fw_time());
cmd->iov_size -= dma_buf_read(&fw_time, dcmd_size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&fw_time, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -937,7 +937,7 @@ static int megasas_event_info(MegasasState *s, MegasasCmd *cmd)
info.shutdown_seq_num = cpu_to_le32(s->shutdown_event);
info.boot_seq_num = cpu_to_le32(s->boot_event);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -1006,7 +1006,7 @@ static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd)
info.size = cpu_to_le32(offset);
info.count = cpu_to_le32(num_pd_disks);
cmd->iov_size -= dma_buf_read(&info, offset, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&info, offset, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -1100,7 +1100,7 @@ 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);
resid = 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_buf = NULL;
@ -1172,7 +1172,7 @@ 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);
resid = dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
cmd->iov_size = dcmd_size - resid;
return MFI_STAT_OK;
}
@ -1221,7 +1221,7 @@ 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);
resid = dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
cmd->iov_size = dcmd_size - resid;
return MFI_STAT_OK;
}
@ -1271,7 +1271,7 @@ 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);
resid = 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_buf = NULL;
@ -1390,7 +1390,7 @@ static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd)
ld_offset += sizeof(struct mfi_ld_config);
}
cmd->iov_size -= dma_buf_read(data, info->size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(data, info->size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}
@ -1420,7 +1420,7 @@ static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd)
info.ecc_bucket_leak_rate = cpu_to_le16(1440);
info.expose_encl_devices = 1;
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg);
cmd->iov_size -= dma_buf_read(&info, dcmd_size, &cmd->qsg, MEMTXATTRS_UNSPECIFIED);
return MFI_STAT_OK;
}

2
hw/scsi/scsi-bus.c
View File

@ -1421,7 +1421,7 @@ 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);
req->resid = dma_buf_read(buf, len, req->sg, MEMTXATTRS_UNSPECIFIED);
} else {
req->resid = dma_buf_write(buf, len, req->sg, MEMTXATTRS_UNSPECIFIED);
}

2
include/sysemu/dma.h
View File

@ -302,7 +302,7 @@ BlockAIOCB *dma_blk_read(BlockBackend *blk,
BlockAIOCB *dma_blk_write(BlockBackend *blk,
QEMUSGList *sg, uint64_t offset, uint32_t align,
BlockCompletionFunc *cb, void *opaque);
uint64_t dma_buf_read(void *ptr, int32_t len, QEMUSGList *sg);
uint64_t dma_buf_read(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs);
uint64_t dma_buf_write(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs);
void dma_acct_start(BlockBackend *blk, BlockAcctCookie *cookie,

5
softmmu/dma-helpers.c
View File

@ -316,10 +316,9 @@ static uint64_t dma_buf_rw(void *buf, int32_t len, QEMUSGList *sg,
return resid;
}
uint64_t dma_buf_read(void *ptr, int32_t len, QEMUSGList *sg)
uint64_t dma_buf_read(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs)
{
return dma_buf_rw(ptr, len, sg, DMA_DIRECTION_FROM_DEVICE,
MEMTXATTRS_UNSPECIFIED);
return dma_buf_rw(ptr, len, sg, DMA_DIRECTION_FROM_DEVICE, attrs);
}
uint64_t dma_buf_write(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs)

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