diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 187 |
1 files changed, 136 insertions, 51 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index 15f70273e29c..40e431debbe9 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -120,6 +120,31 @@ static void npc_enable_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, } } +static void npc_clear_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index) +{ + int bank = npc_get_bank(mcam, index); + int actbank = bank; + + index &= (mcam->banksize - 1); + for (; bank < (actbank + mcam->banks_per_entry); bank++) { + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 0), 0); + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 0), 0); + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 0), 0); + } +} + static void npc_get_keyword(struct mcam_entry *entry, int idx, u64 *cam0, u64 *cam1) { @@ -211,6 +236,12 @@ static void npc_config_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, actindex = index; index &= (mcam->banksize - 1); + /* Disable before mcam entry update */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, false); + + /* Clear mcam entry to avoid writes being suppressed by NPC */ + npc_clear_mcam_entry(rvu, mcam, blkaddr, actindex); + /* CAM1 takes the comparison value and * CAM0 specifies match for a bit in key being '0' or '1' or 'dontcare'. * CAM1<n> = 0 & CAM0<n> = 1 => match if key<n> = 0 @@ -251,8 +282,6 @@ static void npc_config_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, /* Enable the entry */ if (enable) npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, true); - else - npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, false); } static void npc_copy_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, @@ -354,8 +383,8 @@ void rvu_npc_install_ucast_entry(struct rvu *rvu, u16 pcifunc, NIX_INTF_RX, &entry, true); /* add VLAN matching, setup action and save entry back for later */ - entry.kw[0] |= (NPC_LT_LB_STAG | NPC_LT_LB_CTAG) << 20; - entry.kw_mask[0] |= (NPC_LT_LB_STAG & NPC_LT_LB_CTAG) << 20; + entry.kw[0] |= (NPC_LT_LB_STAG_QINQ | NPC_LT_LB_CTAG) << 20; + entry.kw_mask[0] |= (NPC_LT_LB_STAG_QINQ & NPC_LT_LB_CTAG) << 20; entry.vtag_action = VTAG0_VALID_BIT | FIELD_PREP(VTAG0_TYPE_MASK, 0) | @@ -448,68 +477,75 @@ void rvu_npc_install_bcast_match_entry(struct rvu *rvu, u16 pcifunc, { struct npc_mcam *mcam = &rvu->hw->mcam; struct mcam_entry entry = { {0} }; + struct rvu_hwinfo *hw = rvu->hw; struct nix_rx_action action; -#ifdef MCAST_MCE struct rvu_pfvf *pfvf; -#endif int blkaddr, index; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); if (blkaddr < 0) return; - /* Only PF can add a bcast match entry */ - if (pcifunc & RVU_PFVF_FUNC_MASK) + /* Skip LBK VFs */ + if (is_afvf(pcifunc)) return; -#ifdef MCAST_MCE - pfvf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK); -#endif + /* If pkt replication is not supported, + * then only PF is allowed to add a bcast match entry. + */ + if (!hw->cap.nix_rx_multicast && pcifunc & RVU_PFVF_FUNC_MASK) + return; + + /* Get 'pcifunc' of PF device */ + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; index = npc_get_nixlf_mcam_index(mcam, pcifunc, nixlf, NIXLF_BCAST_ENTRY); - /* Check for L2B bit and LMAC channel - * NOTE: Since MKEX default profile(a reduced version intended to - * accommodate more capability but igoring few bits) a stap-gap - * approach. - * Since we care for L2B which by HRM NPC_PARSE_KEX_S at BIT_POS[25], So - * moved to BIT_POS[13], ignoring ERRCODE, ERRLEV as we'll loose out - * on capability features needed for CoS (/from ODP PoV) e.g: VLAN, - * DSCP. - * - * Reduced layout of MKEX default profile - - * Includes following are (i.e.CHAN, L2/3{B/M}, LA, LB, LC, LD): - * - * BIT_POS[31:28] : LD - * BIT_POS[27:24] : LC - * BIT_POS[23:20] : LB - * BIT_POS[19:16] : LA - * BIT_POS[15:12] : L3B, L3M, L2B, L2M - * BIT_POS[11:00] : CHAN - * + /* Match ingress channel */ + entry.kw[0] = chan; + entry.kw_mask[0] = 0xfffull; + + /* Match broadcast MAC address. + * DMAC is extracted at 0th bit of PARSE_KEX::KW1 */ - entry.kw[0] = BIT_ULL(13) | chan; - entry.kw_mask[0] = BIT_ULL(13) | 0xFFFULL; + entry.kw[1] = 0xffffffffffffull; + entry.kw_mask[1] = 0xffffffffffffull; *(u64 *)&action = 0x00; -#ifdef MCAST_MCE - /* Early silicon doesn't support pkt replication, - * so install entry with UCAST action, so that PF - * receives all broadcast packets. - */ - action.op = NIX_RX_ACTIONOP_MCAST; - action.pf_func = pcifunc; - action.index = pfvf->bcast_mce_idx; -#else - action.op = NIX_RX_ACTIONOP_UCAST; - action.pf_func = pcifunc; -#endif + if (!hw->cap.nix_rx_multicast) { + /* Early silicon doesn't support pkt replication, + * so install entry with UCAST action, so that PF + * receives all broadcast packets. + */ + action.op = NIX_RX_ACTIONOP_UCAST; + action.pf_func = pcifunc; + } else { + pfvf = rvu_get_pfvf(rvu, pcifunc); + action.index = pfvf->bcast_mce_idx; + action.op = NIX_RX_ACTIONOP_MCAST; + } entry.action = *(u64 *)&action; npc_config_mcam_entry(rvu, mcam, blkaddr, index, NIX_INTF_RX, &entry, true); } +void rvu_npc_disable_bcast_entry(struct rvu *rvu, u16 pcifunc) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int blkaddr, index; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return; + + /* Get 'pcifunc' of PF device */ + pcifunc = pcifunc & ~RVU_PFVF_FUNC_MASK; + + index = npc_get_nixlf_mcam_index(mcam, pcifunc, 0, NIXLF_BCAST_ENTRY); + npc_enable_mcam_entry(rvu, mcam, blkaddr, index, false); +} + void rvu_npc_update_flowkey_alg_idx(struct rvu *rvu, u16 pcifunc, int nixlf, int group, int alg_idx, int mcam_index) { @@ -704,8 +740,7 @@ static void npc_config_ldata_extract(struct rvu *rvu, int blkaddr) /* Layer B: Stacked VLAN (STAG|QinQ) */ /* CTAG VLAN[2..3] + Ethertype, 4 bytes, KW0[63:32] */ cfg = KEX_LD_CFG(0x03, 0x4, 0x1, 0x0, 0x4); - SET_KEX_LD(NIX_INTF_RX, NPC_LID_LB, NPC_LT_LB_STAG, 0, cfg); - SET_KEX_LD(NIX_INTF_RX, NPC_LID_LB, NPC_LT_LB_QINQ, 0, cfg); + SET_KEX_LD(NIX_INTF_RX, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 0, cfg); /* Layer C: IPv4 */ /* SIP+DIP: 8 bytes, KW2[63:0] */ @@ -806,11 +841,11 @@ static void npc_load_mkex_profile(struct rvu *rvu, int blkaddr) /* Compare with mkex mod_param name string */ if (mcam_kex->mkex_sign == MKEX_SIGN && !strncmp(mcam_kex->name, mkex_profile, MKEX_NAME_LEN)) { - /* Due to an errata (35786) in A0 pass silicon, + /* Due to an errata (35786) in A0/B0 pass silicon, * parse nibble enable configuration has to be * identical for both Rx and Tx interfaces. */ - if (is_rvu_9xxx_A0(rvu) && + if (is_rvu_96xx_B0(rvu) && mcam_kex->keyx_cfg[NIX_INTF_RX] != mcam_kex->keyx_cfg[NIX_INTF_TX]) goto load_default; @@ -1064,6 +1099,13 @@ static int npc_mcam_rsrcs_init(struct rvu *rvu, int blkaddr) mcam->hprio_count = mcam->lprio_count; mcam->hprio_end = mcam->hprio_count; + /* Reserve last counter for MCAM RX miss action which is set to + * drop pkt. This way we will know how many pkts didn't match + * any MCAM entry. + */ + mcam->counters.max--; + mcam->rx_miss_act_cntr = mcam->counters.max; + /* Allocate bitmap for managing MCAM counters and memory * for saving counter to RVU PFFUNC allocation mapping. */ @@ -1101,6 +1143,7 @@ free_mem: int rvu_npc_init(struct rvu *rvu) { struct npc_pkind *pkind = &rvu->hw->pkind; + struct npc_mcam *mcam = &rvu->hw->mcam; u64 keyz = NPC_MCAM_KEY_X2; int blkaddr, entry, bank, err; u64 cfg, nibble_ena; @@ -1143,7 +1186,7 @@ int rvu_npc_init(struct rvu *rvu) /* Config Inner IPV4 NPC layer info */ rvu_write64(rvu, blkaddr, NPC_AF_PCK_DEF_IIP4, - (NPC_LID_LF << 8) | (NPC_LT_LF_TU_IP << 4) | 0x0F); + (NPC_LID_LG << 8) | (NPC_LT_LG_TU_IP << 4) | 0x0F); /* Enable below for Rx pkts. * - Outer IPv4 header checksum validation. @@ -1165,7 +1208,7 @@ int rvu_npc_init(struct rvu *rvu) /* Due to an errata (35786) in A0 pass silicon, parse nibble enable * configuration has to be identical for both Rx and Tx interfaces. */ - if (!is_rvu_9xxx_A0(rvu)) + if (!is_rvu_96xx_B0(rvu)) nibble_ena = (1ULL << 19) - 1; rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(NIX_INTF_TX), ((keyz & 0x3) << 32) | nibble_ena); @@ -1183,9 +1226,13 @@ int rvu_npc_init(struct rvu *rvu) rvu_write64(rvu, blkaddr, NPC_AF_INTFX_MISS_ACT(NIX_INTF_TX), NIX_TX_ACTIONOP_UCAST_DEFAULT); - /* If MCAM lookup doesn't result in a match, drop the received packet */ + /* If MCAM lookup doesn't result in a match, drop the received packet. + * And map this action to a counter to count dropped pkts. + */ rvu_write64(rvu, blkaddr, NPC_AF_INTFX_MISS_ACT(NIX_INTF_RX), NIX_RX_ACTIONOP_DROP); + rvu_write64(rvu, blkaddr, NPC_AF_INTFX_MISS_STAT_ACT(NIX_INTF_RX), + BIT_ULL(9) | mcam->rx_miss_act_cntr); return 0; } @@ -1200,6 +1247,44 @@ void rvu_npc_freemem(struct rvu *rvu) mutex_destroy(&mcam->lock); } +void rvu_npc_get_mcam_entry_alloc_info(struct rvu *rvu, u16 pcifunc, + int blkaddr, int *alloc_cnt, + int *enable_cnt) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int entry; + + *alloc_cnt = 0; + *enable_cnt = 0; + + for (entry = 0; entry < mcam->bmap_entries; entry++) { + if (mcam->entry2pfvf_map[entry] == pcifunc) { + (*alloc_cnt)++; + if (is_mcam_entry_enabled(rvu, mcam, blkaddr, entry)) + (*enable_cnt)++; + } + } +} + +void rvu_npc_get_mcam_counter_alloc_info(struct rvu *rvu, u16 pcifunc, + int blkaddr, int *alloc_cnt, + int *enable_cnt) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int cntr; + + *alloc_cnt = 0; + *enable_cnt = 0; + + for (cntr = 0; cntr < mcam->counters.max; cntr++) { + if (mcam->cntr2pfvf_map[cntr] == pcifunc) { + (*alloc_cnt)++; + if (mcam->cntr_refcnt[cntr]) + (*enable_cnt)++; + } + } +} + static int npc_mcam_verify_entry(struct npc_mcam *mcam, u16 pcifunc, int entry) { |