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bdev: added spdk_bdev_io_get_thread()

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This is required for virtio-initiator,
where multiple io_channels have to
share the same virtio queue. A single
poller will receive responses from
a virtio queue and send the completions
to the thread that submitted bdev_io.

Change-Id: I951c7655aaa17d41a680d437661afff27d2c3077
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/382200
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2017-10-11 18:47:52 +02:00 committed by Jim Harris
parent 0fbde3af96
commit 13017493af
2 changed files with 13 additions and 0 deletions
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7
include/spdk_internal/bdev.h
View File

@ -416,6 +416,13 @@ void spdk_bdev_io_complete_nvme_status(struct spdk_bdev_io *bdev_io, int sct, in
void spdk_bdev_io_complete_scsi_status(struct spdk_bdev_io *bdev_io, enum spdk_scsi_status sc,
enum spdk_scsi_sense sk, uint8_t asc, uint8_t ascq);
/**
* Get a thread that given bdev_io was submitted on.
*
* \param bdev_io I/O
* \return thread that submitted the I/O
*/
struct spdk_thread *spdk_bdev_io_get_thread(struct spdk_bdev_io *bdev_io);
void spdk_scsi_nvme_translate(const struct spdk_bdev_io *bdev_io,
int *sc, int *sk, int *asc, int *ascq);

6
lib/bdev/bdev.c
View File

@ -1628,6 +1628,12 @@ spdk_bdev_io_get_nvme_status(const struct spdk_bdev_io *bdev_io, int *sct, int *
}
}
struct spdk_thread *
spdk_bdev_io_get_thread(struct spdk_bdev_io *bdev_io)
{
return spdk_io_channel_get_thread(bdev_io->ch->channel);
}
static void
_spdk_bdev_register(struct spdk_bdev *bdev)
{