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megasas: fixup MFI_DCMD_LD_LIST_QUERY 

The MFI_DCMD_LD_LIST_QUERY function is using a different format than
MFI_DCMD_LD_LIST, so we need to implement it differently.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Hannes Reinecke 2014-10-29 13:00:05 +01:00 committed by Paolo Bonzini
parent 1894df0281
commit d97ae36848
2 changed files with 41 additions and 3 deletions
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37
hw/scsi/megasas.c
View File

@ -1123,15 +1123,46 @@ static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd)
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;
uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns;
BusChild *kid;
/* mbox0 contains flags */
flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
trace_megasas_dcmd_ld_list_query(cmd->index, flags);
if (flags == MR_LD_QUERY_TYPE_ALL ||
flags == MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) {
return megasas_dcmd_ld_get_list(s, cmd);
if (flags != MR_LD_QUERY_TYPE_ALL &&
flags != MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) {
max_ld_disks = 0;
}
memset(&info, 0, dcmd_size);
if (cmd->iov_size < 12) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
dcmd_size = sizeof(uint32_t) * 2 + 3;
if (megasas_is_jbod(s)) {
max_ld_disks = 0;
}
QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
if (num_ld_disks >= max_ld_disks) {
break;
}
info.targetid[num_ld_disks] = sdev->lun;
num_ld_disks++;
dcmd_size++;
}
info.ld_count = cpu_to_le32(num_ld_disks);
info.size = dcmd_size;
trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
cmd->iov_size = dcmd_size - resid;
return MFI_STAT_OK;
}

7
hw/scsi/mfi.h
View File

@ -1111,6 +1111,13 @@ struct mfi_ld_list {
} ld_list[MFI_MAX_LD];
} QEMU_PACKED;
struct mfi_ld_targetid_list {
uint32_t size;
uint32_t ld_count;
uint8_t pad[3];
uint8_t targetid[MFI_MAX_LD];
} QEMU_PACKED;
enum mfi_ld_access {
MFI_LD_ACCESS_RW = 0,
MFI_LD_ACCSSS_RO = 2,