[PATCH net-next 1/3] qed: Add DCBX API - qed_dcbx_get_priority_tc()
From: Denis Bolotin <hidden>
Date: 2018-07-31 09:07:45
Subsystem:
networking drivers, qlogic ql4xxx ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The API receives a priority and looks for the TC it is mapped to in the operational DCBX configuration. Signed-off-by: Denis Bolotin <redacted> Signed-off-by: Ariel Elior <redacted> --- drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 27 +++++++++++++++++++++++++++ drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 2 ++ 2 files changed, 29 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index 12b4c2a..00891cc 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c@@ -1277,6 +1277,33 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn, return 0; } +int qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri, u8 *p_tc) +{ + struct qed_dcbx_get *dcbx_info; + int rc; + + if (pri >= QED_MAX_PFC_PRIORITIES) { + DP_ERR(p_hwfn, "Invalid priority %d\n", pri); + return -EINVAL; + } + + dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL); + if (!dcbx_info) + return -ENOMEM; + + rc = qed_dcbx_query_params(p_hwfn, dcbx_info, + QED_DCBX_OPERATIONAL_MIB); + if (rc) { + kfree(dcbx_info); + return rc; + } + + *p_tc = dcbx_info->operational.params.ets_pri_tc_tbl[pri]; + kfree(dcbx_info); + + return 0; +} + 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 5feb90e..9425d55 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h@@ -111,6 +111,8 @@ struct qed_dcbx_mib_meta_data { int qed_dcbx_config_params(struct qed_hwfn *, struct qed_ptt *, struct qed_dcbx_set *, bool); + +int qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri, u8 *p_tc); #endif /* QED local interface routines */
--
1.8.3.1