Spdk/include
Shuhei Matsumoto a7a32ea052 nvme/tcp: Support unaligned extended LBA payload in nvme_tcp_pdu_set_data_buf
When DIF is inserted or stripped, nvme_tcp_pdu_set_data_buf must
shift the range of the buffer from LBA based to extended LBA based
because the extended LBA based range must be passed to create a special
temporary iovec array to leave a space of metadata for each block then.

This patch do the following:
- Add a pointer to the current DIF context to struct nvme_tcp_pdu.
  This pointer is set when DIF is inserted or stripped to the current
  NVMf request.
- When the pointer to the current DIF context in the PDU is set, get
  the extended LBA based offset and length by calling
  spdk_dif_get_range_with_md() and use them in nvme_tcp_pdu_set_data_buf().
- Original data length is set in the PDU and original data offset is
  set in the current DIF context in nvme_tcp_pdu_set_data_buf().
- Add UT code.

Change-Id: Ic1f4fd326b5b3e3d4c74677592bda34d6949a11e
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/458920
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2019-07-08 03:33:07 +00:00
..
linux vhost-blk: add discard/write zeroes commands support 2019-01-12 03:14:48 +00:00
spdk opal: add support for getting locking range info 2019-07-05 02:23:28 +00:00
spdk_internal nvme/tcp: Support unaligned extended LBA payload in nvme_tcp_pdu_set_data_buf 2019-07-08 03:33:07 +00:00
Makefile Makefile: Add possibility to uninstall spdk. 2019-05-16 20:56:18 +00:00