Commit eb9ef5cc authored by Changpeng Liu's avatar Changpeng Liu Committed by Daniel Verkamp
Browse files

nvme: Add SGL support in NVMe driver 



For those NVMe controllers which can support SGL feature in
firmware, we will use SGL for scattered payloads.

Change-Id: If688e6494ed62e8cba1d55fc6372c6e162cc09c3
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
parent 98416108

test/lib/nvme/sgl/nvme_sgl.c

+18 −1
Original line number Diff line number Diff line
@@ -129,6 +129,22 @@ io_complete(void *ctx, const struct spdk_nvme_cpl *cpl) 
		io_complete_flag = 1;

}



static uint32_t build_io_request_0(struct io_request *req)

{

	int i;

	uint32_t len = 0;



	req->nseg = 1;



	req->iovs[0].iov_base = rte_zmalloc(NULL, 0x800, 4);

	req->iovs[0].iov_len = 0x800;



	for (i = 0; i < req->nseg; i++)

		len += req->iovs[i].iov_len;



	return len;

}



static uint32_t build_io_request_1(struct io_request *req)

{

	int i, found = 0;
@@ -456,7 +472,8 @@ int main(int argc, char **argv) 
	}



	foreach_dev(iter) {

		if (writev_readv_tests(iter, build_io_request_1)

		if (writev_readv_tests(iter, build_io_request_0)

		    || writev_readv_tests(iter, build_io_request_1)

		    || writev_readv_tests(iter, build_io_request_2)

		    || writev_readv_tests(iter, build_io_request_3)

		    || writev_readv_tests(iter, build_io_request_4)