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DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2021 07:57:02.8610 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b47f38ef-499a-4fba-c6a8-08d999e8873b X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.62.198]; Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: BN1NAM02FT047.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB5095 Subject: [dpdk-dev] [PATCH v2 09/10] vdpa/sfc: add support to set vring state X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Vijay Kumar Srivastava Implements vDPA ops set_vring_state to configure vring state. Signed-off-by: Vijay Kumar Srivastava --- drivers/vdpa/sfc/sfc_vdpa_ops.c | 54 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 50 insertions(+), 4 deletions(-) diff --git a/drivers/vdpa/sfc/sfc_vdpa_ops.c b/drivers/vdpa/sfc/sfc_vdpa_ops.c index 8551b65..3430643 100644 --- a/drivers/vdpa/sfc/sfc_vdpa_ops.c +++ b/drivers/vdpa/sfc/sfc_vdpa_ops.c @@ -719,11 +719,57 @@ static int sfc_vdpa_set_vring_state(int vid, int vring, int state) { - RTE_SET_USED(vid); - RTE_SET_USED(vring); - RTE_SET_USED(state); + struct sfc_vdpa_ops_data *ops_data; + struct rte_vdpa_device *vdpa_dev; + efx_rc_t rc; + int vring_max; + void *dev; - return -1; + vdpa_dev = rte_vhost_get_vdpa_device(vid); + + ops_data = sfc_vdpa_get_data_by_dev(vdpa_dev); + if (ops_data == NULL) + return -1; + + dev = ops_data->dev_handle; + + sfc_vdpa_info(dev, + "vDPA ops set_vring_state: vid: %d, vring: %d, state:%d", + vid, vring, state); + + vring_max = (sfc_vdpa_adapter_by_dev_handle(dev)->max_queue_count * 2); + + if (vring < 0 || vring > vring_max) { + sfc_vdpa_err(dev, "received invalid vring id : %d to set state", + vring); + return -1; + } + + /* + * Skip if device is not yet started. virtqueues state can be + * changed once it is created and other configurations are done. + */ + if (ops_data->state != SFC_VDPA_STATE_STARTED) + return 0; + + if (ops_data->vq_cxt[vring].enable == state) + return 0; + + if (state == 0) { + rc = sfc_vdpa_virtq_stop(ops_data, vring); + if (rc != 0) { + sfc_vdpa_err(dev, "virtqueue stop failed: %s", + rte_strerror(rc)); + } + } else { + rc = sfc_vdpa_virtq_start(ops_data, vring); + if (rc != 0) { + sfc_vdpa_err(dev, "virtqueue start failed: %s", + rte_strerror(rc)); + } + } + + return rc; } static int