From d8ce30e0cf76afe2dd1acfd3f64f66a8afdfa539 Mon Sep 17 00:00:00 2001 From: Naveen Mamindlapalli Date: Thu, 18 Mar 2021 15:32:14 +0530 Subject: octeontx2-pf: add tc flower stats handler for hw offloads Add support to get the stats for tc flower flows that are offloaded to hardware. To support this feature, added a new AF mbox handler which returns the MCAM entry stats for a flow that has hardware stat counter enabled. Signed-off-by: Naveen Mamindlapalli Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/octeontx2/af/mbox.h | 14 ++++++++ .../net/ethernet/marvell/octeontx2/af/rvu_npc.c | 39 ++++++++++++++++++++++ 2 files changed, 53 insertions(+) (limited to 'drivers/net/ethernet/marvell/octeontx2/af') diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h index 46f919625464..3af4d0ffcf7c 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h @@ -216,6 +216,9 @@ M(NPC_MCAM_READ_ENTRY, 0x600f, npc_mcam_read_entry, \ npc_mcam_read_entry_rsp) \ M(NPC_MCAM_READ_BASE_RULE, 0x6011, npc_read_base_steer_rule, \ msg_req, npc_mcam_read_base_rule_rsp) \ +M(NPC_MCAM_GET_STATS, 0x6012, npc_mcam_entry_stats, \ + npc_mcam_get_stats_req, \ + npc_mcam_get_stats_rsp) \ /* NIX mbox IDs (range 0x8000 - 0xFFFF) */ \ M(NIX_LF_ALLOC, 0x8000, nix_lf_alloc, \ nix_lf_alloc_req, nix_lf_alloc_rsp) \ @@ -1195,6 +1198,17 @@ struct npc_mcam_read_base_rule_rsp { struct mcam_entry entry; }; +struct npc_mcam_get_stats_req { + struct mbox_msghdr hdr; + u16 entry; /* mcam entry */ +}; + +struct npc_mcam_get_stats_rsp { + struct mbox_msghdr hdr; + u64 stat; /* counter stats */ + u8 stat_ena; /* enabled */ +}; + enum ptp_op { PTP_OP_ADJFINE = 0, PTP_OP_GET_CLOCK = 1, diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index 6cce7ecad007..03248d280e47 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -2806,3 +2806,42 @@ read_entry: out: return rc; } + +int rvu_mbox_handler_npc_mcam_entry_stats(struct rvu *rvu, + struct npc_mcam_get_stats_req *req, + struct npc_mcam_get_stats_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 index, cntr; + int blkaddr; + u64 regval; + u32 bank; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + + index = req->entry & (mcam->banksize - 1); + bank = npc_get_bank(mcam, req->entry); + + /* read MCAM entry STAT_ACT register */ + regval = rvu_read64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_STAT_ACT(index, bank)); + + if (!(regval & BIT_ULL(9))) { + rsp->stat_ena = 0; + mutex_unlock(&mcam->lock); + return 0; + } + + cntr = regval & 0x1FF; + + rsp->stat_ena = 1; + rsp->stat = rvu_read64(rvu, blkaddr, NPC_AF_MATCH_STATX(cntr)); + rsp->stat &= BIT_ULL(48) - 1; + + mutex_unlock(&mcam->lock); + + return 0; +} -- cgit v1.2.3