qemu/hw/scsi
Daniel Henrique Barboza a0c7e35b17 hw/scsi: centralize SG_IO calls into single function
For the VPD Block Limits emulation with SCSI passthrough,
we'll issue an Inquiry request with EVPD set to retrieve
the available VPD pages of the device. This would be done in
a way similar of what scsi_generic_read_device_identification
does: create a SCSI command and a reply buffer, fill in the
sg_io_hdr_t structure, call blk_ioctl, check if an error
occurred, process the response.

This same process is done in other 2 functions, get_device_type
and get_stream_blocksize. They differ in the command/reply
buffer and post-processing, everything else is almost a
copy/paste.

Instead of adding a forth copy/pasted-ish code when adding
the passthrough VPD BL emulation, this patch extirpates
this repetition of those 3 functions and put it into
a new one called scsi_SG_IO_FROM_DEV. Any future code that
wants to execute an SG_DXFER_FROM_DEV to the device can
use it, avoiding filling sg_io_hdr_t again and et cetera.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20180627172432.11120-3-danielhb413@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-29 13:02:50 +02:00
..
esp-pci.c pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices 2017-10-15 05:54:43 +03:00
esp.c esp: remove legacy esp_init() function 2018-06-28 19:05:36 +02:00
lsi53c895a.c hw/ppc/prep: Fix implicit creation of "-drive if=scsi" devices 2018-03-18 18:27:23 +11:00
Makefile.objs hw: make virtio devices configurable via default-configs/ 2018-06-01 15:14:31 +02:00
megasas.c pci: removed the is_express field since a uniform interface was inserted 2018-02-08 21:06:41 +02:00
mfi.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
mpi.h hw: Add support for LSI SAS1068 (mptsas) device 2016-02-09 15:45:26 +01:00
mptconfig.c scsi: mptconfig: fix misuse of MPTSAS_CONFIG_PACK 2016-09-13 19:08:46 +02:00
mptendian.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-03-12 16:12:46 +01:00
mptsas.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
mptsas.h mptsas: really fix migration compatibility 2016-08-03 18:44:56 +02:00
scsi-bus.c scsi: support NDOB (no data-out buffer) for WRITE SAME commands 2018-03-12 16:12:46 +01:00
scsi-disk.c hw/scsi: centralize SG_IO calls into single function 2018-06-29 13:02:50 +02:00
scsi-generic.c hw/scsi: centralize SG_IO calls into single function 2018-06-29 13:02:50 +02:00
spapr_vscsi.c scsi: Remove automatic creation of SCSI controllers with -drive if=scsi 2018-03-06 14:00:59 +01:00
srp.h spapr-vscsi: add task management 2013-09-12 08:46:21 +02:00
trace-events trace-events: fix code style: print 0x before hex numbers 2017-08-01 12:13:07 +01:00
vhost-scsi-common.c vhost-scsi: drop an unused include 2018-06-01 19:20:37 +03:00
vhost-scsi.c vhost-scsi: add missing virtqueue_size parameter 2017-12-05 12:38:31 +00:00
vhost-user-scsi.c vhost-user: introduce shared vhost-user state 2018-05-24 21:14:11 +03:00
viosrp.h hw: move private headers to hw/ subdirectories. 2013-04-08 18:13:16 +02:00
virtio-scsi-dataplane.c Replace '-enable-kvm' with '-accel kvm' in docs and help texts 2018-06-28 19:05:32 +02:00
virtio-scsi.c scsi: move block/scsi.h to include/scsi/constants.h 2017-09-19 14:09:31 +02:00
vmw_pvscsi.c qdev: use device_class_set_parent_realize/unrealize/reset() 2018-02-05 13:54:38 +01:00
vmw_pvscsi.h scsi: VMWare PVSCSI paravirtual device implementation 2013-04-19 10:44:17 +02:00