From: Prabhakar Kushwaha <pkushwaha@xxxxxxxxxxx>
This patch add support of get or set priority value for a given
dscp index.
Signed-off-by: Shai Malin <smalin@xxxxxxxxxxx>
Signed-off-by: Ariel Elior <aelior@xxxxxxxxxxx>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@xxxxxxxxxxx>
---
Changes for v2:
- incorporated Leon Romanovsky's comments
drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 64 ++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 9 +++
include/linux/qed/qed_if.h | 6 ++
3 files changed, 79 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index e81dd34a3cac..f9254e0fd624 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -1280,6 +1280,70 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
return 0;
}
+int qed_dcbx_get_dscp_priority(struct qed_hwfn *p_hwfn, u8 dscp_index,
+ u8 *p_dscp_pri)
+{
+ struct qed_dcbx_get *p_dcbx_info;
+ int rc;
+
+ if (IS_VF(p_hwfn->cdev)) {
+ DP_ERR(p_hwfn->cdev,
+ "qed rdma get dscp priority not supported for VF.\n");
+ return -EINVAL;
+ }
+
+ if (dscp_index >= QED_DCBX_DSCP_SIZE) {
+ DP_ERR(p_hwfn, "Invalid dscp index %d\n", dscp_index);
+ return -EINVAL;
+ }
+
+ p_dcbx_info = kzalloc(sizeof(*p_dcbx_info), GFP_KERNEL);
+ if (!p_dcbx_info)
+ return -ENOMEM;
+
+ rc = qed_dcbx_query_params(p_hwfn, p_dcbx_info,
+ QED_DCBX_OPERATIONAL_MIB);
+ if (rc) {
+ kfree(p_dcbx_info);
+ return rc;
+ }
+
+ *p_dscp_pri = p_dcbx_info->dscp.dscp_pri_map[dscp_index];
+ kfree(p_dcbx_info);
+
+ return 0;
+}
+
+int qed_dcbx_set_dscp_priority(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+ u8 dscp_index, u8 pri_val)
+{
+ struct qed_dcbx_set dcbx_set;
+ int rc;
+
+ if (IS_VF(p_hwfn->cdev)) {
+ DP_ERR(p_hwfn->cdev,
+ "qed rdma set dscp priority not supported for VF.\n");
+ return -EINVAL;
+ }
+
+ if (dscp_index >= QED_DCBX_DSCP_SIZE ||
+ pri_val >= QED_MAX_PFC_PRIORITIES) {
+ DP_ERR(p_hwfn, "Invalid dscp params: index = %d pri = %d\n",
+ dscp_index, pri_val);
+ return -EINVAL;
+ }
+
+ memset(&dcbx_set, 0, sizeof(dcbx_set));
+ rc = qed_dcbx_get_config_params(p_hwfn, &dcbx_set);
+ if (rc)
+ return rc;
+
+ dcbx_set.override_flags = QED_DCBX_OVERRIDE_DSCP_CFG;
+ dcbx_set.dscp.dscp_pri_map[dscp_index] = pri_val;
+
+ return qed_dcbx_config_params(p_hwfn, p_ptt, &dcbx_set, 1);
+}
+
static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
enum qed_mib_read_type type)
{
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
index e1798925b444..6d8ce9bb30bd 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
@@ -46,6 +46,7 @@ struct qed_dcbx_set {
bool enabled;
struct qed_dcbx_admin_params config;
u32 ver_num;
+ struct qed_dcbx_dscp_params dscp;
};
struct qed_dcbx_results {
@@ -100,6 +101,14 @@ void qed_dcbx_info_free(struct qed_hwfn *p_hwfn);
void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
struct pf_update_ramrod_data *p_dest);
+/* Returns priority value for a given dscp index */
+int qed_dcbx_get_dscp_priority(struct qed_hwfn *p_hwfn, u8 dscp_index,
+ u8 *p_dscp_pri);
+
+/* Sets priority value for a given dscp index */
+int qed_dcbx_set_dscp_priority(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
+ u8 dscp_index, u8 pri_val);
+
#define QED_DCBX_DEFAULT_TC 0
u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri);
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index 850b98991670..f7ce9a923d7c 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -124,12 +124,18 @@ struct qed_dcbx_operational_params {
u32 err;
};
+struct qed_dcbx_dscp_params {
+ bool enabled;
+ u8 dscp_pri_map[QED_DCBX_DSCP_SIZE];
+};
+
struct qed_dcbx_get {
struct qed_dcbx_operational_params operational;
struct qed_dcbx_lldp_remote lldp_remote;
struct qed_dcbx_lldp_local lldp_local;
struct qed_dcbx_remote_params remote;
struct qed_dcbx_admin_params local;
+ struct qed_dcbx_dscp_params dscp;
};
enum qed_nvm_images {
--
2.24.1
