Commit 092de146 authored by Piotr Pelplinski's avatar Piotr Pelplinski Committed by Jim Harris
Browse files

bdev: set optimal io boundary to size of large buf pool 



This is requirement for following patch. Requests that will
reuquest bounce buffer can only allocate limited size buffer.

Signed-off-by: default avatarPiotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: I850b614305d66065733381ceb7bd67d4b1cad6b3

Reviewed-on: https://review.gerrithub.io/430783


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarMaciej Szwed <maciej.szwed@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent 85b805f7

lib/bdev/bdev.c

+10 −0
Original line number Diff line number Diff line
@@ -3258,6 +3258,16 @@ spdk_bdev_init(struct spdk_bdev *bdev) 
	bdev->internal.qd_poller = NULL;

	bdev->internal.qos = NULL;



	if (spdk_bdev_get_buf_align(bdev) > 1) {

		if (bdev->split_on_optimal_io_boundary) {

			bdev->optimal_io_boundary = spdk_min(bdev->optimal_io_boundary,

							     SPDK_BDEV_LARGE_BUF_MAX_SIZE / bdev->blocklen);

		} else {

			bdev->split_on_optimal_io_boundary = true;

			bdev->optimal_io_boundary = SPDK_BDEV_LARGE_BUF_MAX_SIZE / bdev->blocklen;

		}

	}



	TAILQ_INIT(&bdev->internal.open_descs);



	TAILQ_INIT(&bdev->aliases);