Recently DIF library refined _iov_ctx to support multiple iovecs
for DIF insert and strip operations. iSCSI library is the first
user of DIF insert and strip, and so rename _iov_ctx to _iscsi_sgl
to match DIF library. Names of related helper functions and
a member variable are changed together.
This change will be helpful to extract common part into a specific
helper library if necessary in future.
Change-Id: I3be3b6c3c476b0309ffafdecf3181fb2bb19abc6
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/455620
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>