xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qed: Add Multi-TC RoCE support

Browse Source 
RoCE qps use a pair of physical queues (pq) received from the Queue Manager
(QM) - an offload queue (OFLD) and a low latency queue (LLT). The QM block
creates a pq for each TC, and allows RoCE qps to ask for a pq with a
specific TC. As a result, qps with different VLAN priorities can be mapped
to different TCs, and employ features such as PFC and ETS.

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 15:48:10 +03:00
committed by David S. Miller
parent c4259dda17
commit 61be82b087
3 changed files with 121 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/ethernet/qlogic/qed/qed.h
View File

@@ -338,6 +338,9 @@ struct qed_hw_info {
u8 offload_tc;
bool offload_tc_set;
bool multi_tc_roce_en;
#define IS_QED_MULTI_TC_ROCE(p_hwfn) (((p_hwfn)->hw_info.multi_tc_roce_en))
u32 concrete_fid;
u16 opaque_fid;
u16 ovlan;
@@ -400,8 +403,8 @@ struct qed_qm_info {
u16 start_pq;
u8 start_vport;
u16 pure_lb_pq;
u16 offload_pq;
u16 low_latency_pq;
u16 first_ofld_pq;
u16 first_llt_pq;
u16 pure_ack_pq;
u16 ooo_pq;
u16 first_vf_pq;
@@ -882,11 +885,14 @@ void qed_set_fw_mac_addr(__le16 *fw_msb,
#define PQ_FLAGS_OFLD (BIT(5))
#define PQ_FLAGS_VFS (BIT(6))
#define PQ_FLAGS_LLT (BIT(7))
#define PQ_FLAGS_MTC (BIT(8))
/* physical queue index for cm context intialization */
u16 qed_get_cm_pq_idx(struct qed_hwfn *p_hwfn, u32 pq_flags);
u16 qed_get_cm_pq_idx_mcos(struct qed_hwfn *p_hwfn, u8 tc);
u16 qed_get_cm_pq_idx_vf(struct qed_hwfn *p_hwfn, u16 vf);
u16 qed_get_cm_pq_idx_ofld_mtc(struct qed_hwfn *p_hwfn, u8 tc);
u16 qed_get_cm_pq_idx_llt_mtc(struct qed_hwfn *p_hwfn, u8 tc);
#define QED_LEADING_HWFN(dev) (&dev->hwfns[0])