forked from luck/tmp_suning_uos_patched
09b13fa8c1
This patch adds ANY_LAYOUT compatible support within the existing vhost_scsi_handle_vq() ->handle_kick() callback. It calculates data_direction + exp_data_len for the new tcm_vhost_cmd descriptor by walking both outgoing + incoming iovecs using iov_iter, assuming the layout of outgoing request header + T10_PI + Data payload comes first. It also uses copy_from_iter() to copy leading virtio-scsi request header that may or may not include SCSI CDB, that returns a re-calculated iovec to start of T10_PI or Data SGL memory. Also, go ahead and drop the legacy pre virtio v1.0 !ANY_LAYOUT logic. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| net.c | ||
| scsi.c | ||
| test.c | ||
| test.h | ||
| vhost.c | ||
| vhost.h | ||
| vringh.c | ||