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qed: Add DCBX API - qed_dcbx_get_priority_tc() 

The API receives a priority and looks for the TC it is mapped to in the
operational DCBX configuration. The API returns QED_DCBX_DEFAULT_TC (0)
when DCBX is disabled.

Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis Bolotin 2018-08-07 15:48:08 +03:00 committed by David S. Miller
parent 5941923da2
commit 2a1cb1bf43
2 changed files with 21 additions and 0 deletions
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18
drivers/net/ethernet/qlogic/qed/qed_dcbx.c
View File

@ -989,6 +989,24 @@ void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
}
u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri)
{
struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get;
if (pri >= QED_MAX_PFC_PRIORITIES) {
DP_ERR(p_hwfn, "Invalid priority %d\n", pri);
return QED_DCBX_DEFAULT_TC;
}
if (!dcbx_info->operational.valid) {
DP_VERBOSE(p_hwfn, QED_MSG_DCB,
"Dcbx parameters not available\n");
return QED_DCBX_DEFAULT_TC;
}
return dcbx_info->operational.params.ets_pri_tc_tbl[pri];
}
#ifdef CONFIG_DCB
static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
struct qed_dcbx_get *p_get,

3
drivers/net/ethernet/qlogic/qed/qed_dcbx.h
View File

@ -123,4 +123,7 @@ 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);
#define QED_DCBX_DEFAULT_TC 0
u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri);
#endif