794d47d4c4
This patch adds support for using zero-copy operations to execute IO requests in the TCP transport. Of course, they're only used if the underlying bdev supports them. Additionally, only requests with no in-capsule-data can be executed using this mechanism. Added several new states to accommodate for the difference in a way zero-copy is handled. Also, these flows very depending on the type of a request (read or write). It stems from zero-copy semantics: to perform a write we need to wait for zcopy_end completion, while for reads zcopy_end can only be submitted once we send all of the requested data to the host. Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com> Change-Id: Ie02b494c24bc1acc98557cb4b02e867abf9064e4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10796 Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> |
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| .. | ||
| ctrlr_bdev.c | ||
| ctrlr_discovery.c | ||
| ctrlr.c | ||
| fc_ls.c | ||
| fc.c | ||
| Makefile | ||
| nvmf_fc.h | ||
| nvmf_internal.h | ||
| nvmf_rpc.c | ||
| nvmf.c | ||
| rdma.c | ||
| spdk_nvmf.map | ||
| subsystem.c | ||
| tcp.c | ||
| transport.c | ||
| transport.h | ||
| vfio_user.c | ||