Commit 4fd4f636 authored by Jim Harris's avatar Jim Harris Committed by Tomasz Zawadzki
Browse files

ublk: remove ublk_ctrl_cmd args parameter 



We don't need this parameter - it is simpler to
just determine the argument data (if any) in the
function itself based on the opcode.

Signed-off-by: default avatarJim Harris <james.r.harris@intel.com>
Change-Id: Ic8df8f9ec569c10ebb565efc7268fba1d50bcdf5
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16452


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
parent cde0c555

lib/ublk/ublk.c

+11 −17
Original line number Diff line number Diff line
@@ -233,15 +233,12 @@ ublk_ctrl_poller(void *arg) 
}



static int

ublk_ctrl_cmd(struct spdk_ublk_dev *ublk, uint32_t cmd_op, void *args)

ublk_ctrl_cmd(struct spdk_ublk_dev *ublk, uint32_t cmd_op)

{

	uint32_t dev_id = ublk->ublk_id;

	int rc = -EINVAL;

	struct io_uring_sqe *sqe;

	struct ublksrv_ctrl_cmd *cmd;

	int *ublk_pid;

	struct ublksrv_ctrl_dev_info *dev_info;

	struct ublk_params *params;



	sqe = io_uring_get_sqe(&g_ublk_tgt.ctrl_ring);

	if (!sqe) {
@@ -258,22 +255,19 @@ ublk_ctrl_cmd(struct spdk_ublk_dev *ublk, uint32_t cmd_op, void *args) 


	switch (cmd_op) {

	case UBLK_CMD_START_DEV:

		ublk_pid = args;

		cmd->data[0] = *ublk_pid;

		cmd->data[0] = getpid();

		cmd->data[1] = 0;

		break;

	case UBLK_CMD_ADD_DEV:

		dev_info = args;

		cmd->addr = (__u64)(uintptr_t)(dev_info);

		cmd->len = sizeof(*dev_info);

		cmd->addr = (__u64)(uintptr_t)&ublk->dev_info;

		cmd->len = sizeof(ublk->dev_info);

		break;

	case UBLK_CMD_STOP_DEV:

	case UBLK_CMD_DEL_DEV:

		break;

	case UBLK_CMD_SET_PARAMS:

		params = args;

		cmd->addr = (__u64)(uintptr_t)params;

		cmd->len = sizeof(*params);

		cmd->addr = (__u64)(uintptr_t)&ublk->dev_params;

		cmd->len = sizeof(ublk->dev_params);

		break;

	default:

		SPDK_ERRLOG("No match cmd operation,cmd_op = %d\n", cmd_op);
@@ -456,7 +450,7 @@ ublk_start_kernel(void *arg) 
	int rc;



	assert(ublk->dev_info.ublksrv_pid == getpid());

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_START_DEV, &ublk->dev_info.ublksrv_pid);

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_START_DEV);

	if (rc < 0) {

		SPDK_ERRLOG("start dev %d failed, rc %s\n", ublk->ublk_id,

			    spdk_strerror(-rc));
@@ -470,7 +464,7 @@ ublk_stop_kernel(struct spdk_ublk_dev *ublk) 
{

	int rc;



	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_STOP_DEV, NULL);

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_STOP_DEV);

	if (rc < 0) {

		SPDK_ERRLOG("stop dev %d failed\n", ublk->ublk_id);

	}
@@ -672,7 +666,7 @@ ublk_close_dev_done(void *arg) 
		close(ublk->cdev_fd);

	}



	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_DEL_DEV, NULL);

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_DEL_DEV);

	if (rc < 0) {

		SPDK_ERRLOG("delete dev %d failed\n", ublk->ublk_id);

	}
@@ -1177,7 +1171,7 @@ _ublk_start_disk(struct spdk_ublk_dev *ublk) 
{

	int rc;



	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_ADD_DEV, &ublk->dev_info);

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_ADD_DEV);

	if (rc < 0) {

		SPDK_ERRLOG("UBLK can't add dev %d, rc %s\n", ublk->ublk_id, spdk_strerror(-rc));

	}
@@ -1191,7 +1185,7 @@ ublk_set_params(struct spdk_ublk_dev *ublk) 
	int rc;



	ublk->dev_params.len = sizeof(struct ublk_params);

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_SET_PARAMS, &ublk->dev_params);

	rc = ublk_ctrl_cmd(ublk, UBLK_CMD_SET_PARAMS);

	if (rc < 0) {

		SPDK_ERRLOG("UBLK can't set params for dev %d, rc %s\n", ublk->ublk_id, spdk_strerror(-rc));

		_ublk_try_close_dev(ublk);