| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Sunil Goutham | 9530 | 60.72% | 23 | 51.11% |
| Nithin Dabilpuram | 1963 | 12.51% | 4 | 8.89% |
| Geetha Sowjanya | 1329 | 8.47% | 3 | 6.67% |
| Jerin Jacob | 1070 | 6.82% | 4 | 8.89% |
| Krzysztof Kanas | 595 | 3.79% | 1 | 2.22% |
| Vamsi Attunuru | 399 | 2.54% | 2 | 4.44% |
| Tomasz Duszynski | 395 | 2.52% | 2 | 4.44% |
| Vidhya Raman | 235 | 1.50% | 1 | 2.22% |
| Stanislaw Kardach | 84 | 0.54% | 2 | 4.44% |
| Kiran Kumar | 80 | 0.51% | 1 | 2.22% |
| Linu Cherian | 14 | 0.09% | 1 | 2.22% |
| Dan Carpenter | 1 | 0.01% | 1 | 2.22% |
| Total | 15695 | 45 |
// SPDX-License-Identifier: GPL-2.0 /* Marvell OcteonTx2 RVU Admin Function driver * * Copyright (C) 2018 Marvell International Ltd. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/module.h> #include <linux/pci.h> #include "rvu_struct.h" #include "rvu_reg.h" #include "rvu.h" #include "npc.h" #include "cgx.h" static int nix_update_bcast_mce_list(struct rvu *rvu, u16 pcifunc, bool add); enum mc_tbl_sz { MC_TBL_SZ_256, MC_TBL_SZ_512, MC_TBL_SZ_1K, MC_TBL_SZ_2K, MC_TBL_SZ_4K, MC_TBL_SZ_8K, MC_TBL_SZ_16K, MC_TBL_SZ_32K, MC_TBL_SZ_64K, }; enum mc_buf_cnt { MC_BUF_CNT_8, MC_BUF_CNT_16, MC_BUF_CNT_32, MC_BUF_CNT_64, MC_BUF_CNT_128, MC_BUF_CNT_256, MC_BUF_CNT_512, MC_BUF_CNT_1024, MC_BUF_CNT_2048, }; enum nix_makr_fmt_indexes { NIX_MARK_CFG_IP_DSCP_RED, NIX_MARK_CFG_IP_DSCP_YELLOW, NIX_MARK_CFG_IP_DSCP_YELLOW_RED, NIX_MARK_CFG_IP_ECN_RED, NIX_MARK_CFG_IP_ECN_YELLOW, NIX_MARK_CFG_IP_ECN_YELLOW_RED, NIX_MARK_CFG_VLAN_DEI_RED, NIX_MARK_CFG_VLAN_DEI_YELLOW, NIX_MARK_CFG_VLAN_DEI_YELLOW_RED, NIX_MARK_CFG_MAX, }; /* For now considering MC resources needed for broadcast * pkt replication only. i.e 256 HWVFs + 12 PFs. */ #define MC_TBL_SIZE MC_TBL_SZ_512 #define MC_BUF_CNT MC_BUF_CNT_128 struct mce { struct hlist_node node; u16 idx; u16 pcifunc; }; bool is_nixlf_attached(struct rvu *rvu, u16 pcifunc) { struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); int blkaddr; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return false; return true; } int rvu_get_nixlf_count(struct rvu *rvu) { struct rvu_block *block; int blkaddr; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); if (blkaddr < 0) return 0; block = &rvu->hw->block[blkaddr]; return block->lf.max; } static void nix_mce_list_init(struct nix_mce_list *list, int max) { INIT_HLIST_HEAD(&list->head); list->count = 0; list->max = max; } static u16 nix_alloc_mce_list(struct nix_mcast *mcast, int count) { int idx; if (!mcast) return 0; idx = mcast->next_free_mce; mcast->next_free_mce += count; return idx; } static inline struct nix_hw *get_nix_hw(struct rvu_hwinfo *hw, int blkaddr) { if (blkaddr == BLKADDR_NIX0 && hw->nix0) return hw->nix0; return NULL; } static void nix_rx_sync(struct rvu *rvu, int blkaddr) { int err; /*Sync all in flight RX packets to LLC/DRAM */ rvu_write64(rvu, blkaddr, NIX_AF_RX_SW_SYNC, BIT_ULL(0)); err = rvu_poll_reg(rvu, blkaddr, NIX_AF_RX_SW_SYNC, BIT_ULL(0), true); if (err) dev_err(rvu->dev, "NIX RX software sync failed\n"); /* As per a HW errata in 9xxx A0 silicon, HW may clear SW_SYNC[ENA] * bit too early. Hence wait for 50us more. */ if (is_rvu_9xxx_A0(rvu)) usleep_range(50, 60); } static bool is_valid_txschq(struct rvu *rvu, int blkaddr, int lvl, u16 pcifunc, u16 schq) { struct nix_txsch *txsch; struct nix_hw *nix_hw; u16 map_func; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return false; txsch = &nix_hw->txsch[lvl]; /* Check out of bounds */ if (schq >= txsch->schq.max) return false; mutex_lock(&rvu->rsrc_lock); map_func = TXSCH_MAP_FUNC(txsch->pfvf_map[schq]); mutex_unlock(&rvu->rsrc_lock); /* For TL1 schq, sharing across VF's of same PF is ok */ if (lvl == NIX_TXSCH_LVL_TL1 && rvu_get_pf(map_func) != rvu_get_pf(pcifunc)) return false; if (lvl != NIX_TXSCH_LVL_TL1 && map_func != pcifunc) return false; return true; } static int nix_interface_init(struct rvu *rvu, u16 pcifunc, int type, int nixlf) { struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); u8 cgx_id, lmac_id; int pkind, pf, vf; int err; pf = rvu_get_pf(pcifunc); if (!is_pf_cgxmapped(rvu, pf) && type != NIX_INTF_TYPE_LBK) return 0; switch (type) { case NIX_INTF_TYPE_CGX: pfvf->cgx_lmac = rvu->pf2cgxlmac_map[pf]; rvu_get_cgx_lmac_id(pfvf->cgx_lmac, &cgx_id, &lmac_id); pkind = rvu_npc_get_pkind(rvu, pf); if (pkind < 0) { dev_err(rvu->dev, "PF_Func 0x%x: Invalid pkind\n", pcifunc); return -EINVAL; } pfvf->rx_chan_base = NIX_CHAN_CGX_LMAC_CHX(cgx_id, lmac_id, 0); pfvf->tx_chan_base = pfvf->rx_chan_base; pfvf->rx_chan_cnt = 1; pfvf->tx_chan_cnt = 1; cgx_set_pkind(rvu_cgx_pdata(cgx_id, rvu), lmac_id, pkind); rvu_npc_set_pkind(rvu, pkind, pfvf); break; case NIX_INTF_TYPE_LBK: vf = (pcifunc & RVU_PFVF_FUNC_MASK) - 1; pfvf->rx_chan_base = NIX_CHAN_LBK_CHX(0, vf); pfvf->tx_chan_base = vf & 0x1 ? NIX_CHAN_LBK_CHX(0, vf - 1) : NIX_CHAN_LBK_CHX(0, vf + 1); pfvf->rx_chan_cnt = 1; pfvf->tx_chan_cnt = 1; rvu_npc_install_promisc_entry(rvu, pcifunc, nixlf, pfvf->rx_chan_base, false); break; } /* Add a UCAST forwarding rule in MCAM with this NIXLF attached * RVU PF/VF's MAC address. */ rvu_npc_install_ucast_entry(rvu, pcifunc, nixlf, pfvf->rx_chan_base, pfvf->mac_addr); /* Add this PF_FUNC to bcast pkt replication list */ err = nix_update_bcast_mce_list(rvu, pcifunc, true); if (err) { dev_err(rvu->dev, "Bcast list, failed to enable PF_FUNC 0x%x\n", pcifunc); return err; } rvu_npc_install_bcast_match_entry(rvu, pcifunc, nixlf, pfvf->rx_chan_base); pfvf->maxlen = NIC_HW_MIN_FRS; pfvf->minlen = NIC_HW_MIN_FRS; return 0; } static void nix_interface_deinit(struct rvu *rvu, u16 pcifunc, u8 nixlf) { struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); int err; pfvf->maxlen = 0; pfvf->minlen = 0; pfvf->rxvlan = false; /* Remove this PF_FUNC from bcast pkt replication list */ err = nix_update_bcast_mce_list(rvu, pcifunc, false); if (err) { dev_err(rvu->dev, "Bcast list, failed to disable PF_FUNC 0x%x\n", pcifunc); } /* Free and disable any MCAM entries used by this NIX LF */ rvu_npc_disable_mcam_entries(rvu, pcifunc, nixlf); } static void nix_setup_lso_tso_l3(struct rvu *rvu, int blkaddr, u64 format, bool v4, u64 *fidx) { struct nix_lso_format field = {0}; /* IP's Length field */ field.layer = NIX_TXLAYER_OL3; /* In ipv4, length field is at offset 2 bytes, for ipv6 it's 4 */ field.offset = v4 ? 2 : 4; field.sizem1 = 1; /* i.e 2 bytes */ field.alg = NIX_LSOALG_ADD_PAYLEN; rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), *(u64 *)&field); /* No ID field in IPv6 header */ if (!v4) return; /* IP's ID field */ field.layer = NIX_TXLAYER_OL3; field.offset = 4; field.sizem1 = 1; /* i.e 2 bytes */ field.alg = NIX_LSOALG_ADD_SEGNUM; rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), *(u64 *)&field); } static void nix_setup_lso_tso_l4(struct rvu *rvu, int blkaddr, u64 format, u64 *fidx) { struct nix_lso_format field = {0}; /* TCP's sequence number field */ field.layer = NIX_TXLAYER_OL4; field.offset = 4; field.sizem1 = 3; /* i.e 4 bytes */ field.alg = NIX_LSOALG_ADD_OFFSET; rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), *(u64 *)&field); /* TCP's flags field */ field.layer = NIX_TXLAYER_OL4; field.offset = 12; field.sizem1 = 1; /* 2 bytes */ field.alg = NIX_LSOALG_TCP_FLAGS; rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(format, (*fidx)++), *(u64 *)&field); } static void nix_setup_lso(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) { u64 cfg, idx, fidx = 0; /* Get max HW supported format indices */ cfg = (rvu_read64(rvu, blkaddr, NIX_AF_CONST1) >> 48) & 0xFF; nix_hw->lso.total = cfg; /* Enable LSO */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_LSO_CFG); /* For TSO, set first and middle segment flags to * mask out PSH, RST & FIN flags in TCP packet */ cfg &= ~((0xFFFFULL << 32) | (0xFFFFULL << 16)); cfg |= (0xFFF2ULL << 32) | (0xFFF2ULL << 16); rvu_write64(rvu, blkaddr, NIX_AF_LSO_CFG, cfg | BIT_ULL(63)); /* Setup default static LSO formats * * Configure format fields for TCPv4 segmentation offload */ idx = NIX_LSO_FORMAT_IDX_TSOV4; nix_setup_lso_tso_l3(rvu, blkaddr, idx, true, &fidx); nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx); /* Set rest of the fields to NOP */ for (; fidx < 8; fidx++) { rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL); } nix_hw->lso.in_use++; /* Configure format fields for TCPv6 segmentation offload */ idx = NIX_LSO_FORMAT_IDX_TSOV6; fidx = 0; nix_setup_lso_tso_l3(rvu, blkaddr, idx, false, &fidx); nix_setup_lso_tso_l4(rvu, blkaddr, idx, &fidx); /* Set rest of the fields to NOP */ for (; fidx < 8; fidx++) { rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(idx, fidx), 0x0ULL); } nix_hw->lso.in_use++; } static void nix_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf) { kfree(pfvf->rq_bmap); kfree(pfvf->sq_bmap); kfree(pfvf->cq_bmap); if (pfvf->rq_ctx) qmem_free(rvu->dev, pfvf->rq_ctx); if (pfvf->sq_ctx) qmem_free(rvu->dev, pfvf->sq_ctx); if (pfvf->cq_ctx) qmem_free(rvu->dev, pfvf->cq_ctx); if (pfvf->rss_ctx) qmem_free(rvu->dev, pfvf->rss_ctx); if (pfvf->nix_qints_ctx) qmem_free(rvu->dev, pfvf->nix_qints_ctx); if (pfvf->cq_ints_ctx) qmem_free(rvu->dev, pfvf->cq_ints_ctx); pfvf->rq_bmap = NULL; pfvf->cq_bmap = NULL; pfvf->sq_bmap = NULL; pfvf->rq_ctx = NULL; pfvf->sq_ctx = NULL; pfvf->cq_ctx = NULL; pfvf->rss_ctx = NULL; pfvf->nix_qints_ctx = NULL; pfvf->cq_ints_ctx = NULL; } static int nixlf_rss_ctx_init(struct rvu *rvu, int blkaddr, struct rvu_pfvf *pfvf, int nixlf, int rss_sz, int rss_grps, int hwctx_size) { int err, grp, num_indices; /* RSS is not requested for this NIXLF */ if (!rss_sz) return 0; num_indices = rss_sz * rss_grps; /* Alloc NIX RSS HW context memory and config the base */ err = qmem_alloc(rvu->dev, &pfvf->rss_ctx, num_indices, hwctx_size); if (err) return err; rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_BASE(nixlf), (u64)pfvf->rss_ctx->iova); /* Config full RSS table size, enable RSS and caching */ rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_CFG(nixlf), BIT_ULL(36) | BIT_ULL(4) | ilog2(num_indices / MAX_RSS_INDIR_TBL_SIZE)); /* Config RSS group offset and sizes */ for (grp = 0; grp < rss_grps; grp++) rvu_write64(rvu, blkaddr, NIX_AF_LFX_RSS_GRPX(nixlf, grp), ((ilog2(rss_sz) - 1) << 16) | (rss_sz * grp)); return 0; } static int nix_aq_enqueue_wait(struct rvu *rvu, struct rvu_block *block, struct nix_aq_inst_s *inst) { struct admin_queue *aq = block->aq; struct nix_aq_res_s *result; int timeout = 1000; u64 reg, head; result = (struct nix_aq_res_s *)aq->res->base; /* Get current head pointer where to append this instruction */ reg = rvu_read64(rvu, block->addr, NIX_AF_AQ_STATUS); head = (reg >> 4) & AQ_PTR_MASK; memcpy((void *)(aq->inst->base + (head * aq->inst->entry_sz)), (void *)inst, aq->inst->entry_sz); memset(result, 0, sizeof(*result)); /* sync into memory */ wmb(); /* Ring the doorbell and wait for result */ rvu_write64(rvu, block->addr, NIX_AF_AQ_DOOR, 1); while (result->compcode == NIX_AQ_COMP_NOTDONE) { cpu_relax(); udelay(1); timeout--; if (!timeout) return -EBUSY; } if (result->compcode != NIX_AQ_COMP_GOOD) /* TODO: Replace this with some error code */ return -EBUSY; return 0; } static int rvu_nix_aq_enq_inst(struct rvu *rvu, struct nix_aq_enq_req *req, struct nix_aq_enq_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; int nixlf, blkaddr, rc = 0; struct nix_aq_inst_s inst; struct rvu_block *block; struct admin_queue *aq; struct rvu_pfvf *pfvf; void *ctx, *mask; bool ena; u64 cfg; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; block = &hw->block[blkaddr]; aq = block->aq; if (!aq) { dev_warn(rvu->dev, "%s: NIX AQ not initialized\n", __func__); return NIX_AF_ERR_AQ_ENQUEUE; } pfvf = rvu_get_pfvf(rvu, pcifunc); nixlf = rvu_get_lf(rvu, block, pcifunc, 0); /* Skip NIXLF check for broadcast MCE entry init */ if (!(!rsp && req->ctype == NIX_AQ_CTYPE_MCE)) { if (!pfvf->nixlf || nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; } switch (req->ctype) { case NIX_AQ_CTYPE_RQ: /* Check if index exceeds max no of queues */ if (!pfvf->rq_ctx || req->qidx >= pfvf->rq_ctx->qsize) rc = NIX_AF_ERR_AQ_ENQUEUE; break; case NIX_AQ_CTYPE_SQ: if (!pfvf->sq_ctx || req->qidx >= pfvf->sq_ctx->qsize) rc = NIX_AF_ERR_AQ_ENQUEUE; break; case NIX_AQ_CTYPE_CQ: if (!pfvf->cq_ctx || req->qidx >= pfvf->cq_ctx->qsize) rc = NIX_AF_ERR_AQ_ENQUEUE; break; case NIX_AQ_CTYPE_RSS: /* Check if RSS is enabled and qidx is within range */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_LFX_RSS_CFG(nixlf)); if (!(cfg & BIT_ULL(4)) || !pfvf->rss_ctx || (req->qidx >= (256UL << (cfg & 0xF)))) rc = NIX_AF_ERR_AQ_ENQUEUE; break; case NIX_AQ_CTYPE_MCE: cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_MCAST_CFG); /* Check if index exceeds MCE list length */ if (!hw->nix0->mcast.mce_ctx || (req->qidx >= (256UL << (cfg & 0xF)))) rc = NIX_AF_ERR_AQ_ENQUEUE; /* Adding multicast lists for requests from PF/VFs is not * yet supported, so ignore this. */ if (rsp) rc = NIX_AF_ERR_AQ_ENQUEUE; break; default: rc = NIX_AF_ERR_AQ_ENQUEUE; } if (rc) return rc; /* Check if SQ pointed SMQ belongs to this PF/VF or not */ if (req->ctype == NIX_AQ_CTYPE_SQ && ((req->op == NIX_AQ_INSTOP_INIT && req->sq.ena) || (req->op == NIX_AQ_INSTOP_WRITE && req->sq_mask.ena && req->sq_mask.smq && req->sq.ena))) { if (!is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_SMQ, pcifunc, req->sq.smq)) return NIX_AF_ERR_AQ_ENQUEUE; } memset(&inst, 0, sizeof(struct nix_aq_inst_s)); inst.lf = nixlf; inst.cindex = req->qidx; inst.ctype = req->ctype; inst.op = req->op; /* Currently we are not supporting enqueuing multiple instructions, * so always choose first entry in result memory. */ inst.res_addr = (u64)aq->res->iova; /* Clean result + context memory */ memset(aq->res->base, 0, aq->res->entry_sz); /* Context needs to be written at RES_ADDR + 128 */ ctx = aq->res->base + 128; /* Mask needs to be written at RES_ADDR + 256 */ mask = aq->res->base + 256; switch (req->op) { case NIX_AQ_INSTOP_WRITE: if (req->ctype == NIX_AQ_CTYPE_RQ) memcpy(mask, &req->rq_mask, sizeof(struct nix_rq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_SQ) memcpy(mask, &req->sq_mask, sizeof(struct nix_sq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_CQ) memcpy(mask, &req->cq_mask, sizeof(struct nix_cq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_RSS) memcpy(mask, &req->rss_mask, sizeof(struct nix_rsse_s)); else if (req->ctype == NIX_AQ_CTYPE_MCE) memcpy(mask, &req->mce_mask, sizeof(struct nix_rx_mce_s)); /* Fall through */ case NIX_AQ_INSTOP_INIT: if (req->ctype == NIX_AQ_CTYPE_RQ) memcpy(ctx, &req->rq, sizeof(struct nix_rq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_SQ) memcpy(ctx, &req->sq, sizeof(struct nix_sq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_CQ) memcpy(ctx, &req->cq, sizeof(struct nix_cq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_RSS) memcpy(ctx, &req->rss, sizeof(struct nix_rsse_s)); else if (req->ctype == NIX_AQ_CTYPE_MCE) memcpy(ctx, &req->mce, sizeof(struct nix_rx_mce_s)); break; case NIX_AQ_INSTOP_NOP: case NIX_AQ_INSTOP_READ: case NIX_AQ_INSTOP_LOCK: case NIX_AQ_INSTOP_UNLOCK: break; default: rc = NIX_AF_ERR_AQ_ENQUEUE; return rc; } spin_lock(&aq->lock); /* Submit the instruction to AQ */ rc = nix_aq_enqueue_wait(rvu, block, &inst); if (rc) { spin_unlock(&aq->lock); return rc; } /* Set RQ/SQ/CQ bitmap if respective queue hw context is enabled */ if (req->op == NIX_AQ_INSTOP_INIT) { if (req->ctype == NIX_AQ_CTYPE_RQ && req->rq.ena) __set_bit(req->qidx, pfvf->rq_bmap); if (req->ctype == NIX_AQ_CTYPE_SQ && req->sq.ena) __set_bit(req->qidx, pfvf->sq_bmap); if (req->ctype == NIX_AQ_CTYPE_CQ && req->cq.ena) __set_bit(req->qidx, pfvf->cq_bmap); } if (req->op == NIX_AQ_INSTOP_WRITE) { if (req->ctype == NIX_AQ_CTYPE_RQ) { ena = (req->rq.ena & req->rq_mask.ena) | (test_bit(req->qidx, pfvf->rq_bmap) & ~req->rq_mask.ena); if (ena) __set_bit(req->qidx, pfvf->rq_bmap); else __clear_bit(req->qidx, pfvf->rq_bmap); } if (req->ctype == NIX_AQ_CTYPE_SQ) { ena = (req->rq.ena & req->sq_mask.ena) | (test_bit(req->qidx, pfvf->sq_bmap) & ~req->sq_mask.ena); if (ena) __set_bit(req->qidx, pfvf->sq_bmap); else __clear_bit(req->qidx, pfvf->sq_bmap); } if (req->ctype == NIX_AQ_CTYPE_CQ) { ena = (req->rq.ena & req->cq_mask.ena) | (test_bit(req->qidx, pfvf->cq_bmap) & ~req->cq_mask.ena); if (ena) __set_bit(req->qidx, pfvf->cq_bmap); else __clear_bit(req->qidx, pfvf->cq_bmap); } } if (rsp) { /* Copy read context into mailbox */ if (req->op == NIX_AQ_INSTOP_READ) { if (req->ctype == NIX_AQ_CTYPE_RQ) memcpy(&rsp->rq, ctx, sizeof(struct nix_rq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_SQ) memcpy(&rsp->sq, ctx, sizeof(struct nix_sq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_CQ) memcpy(&rsp->cq, ctx, sizeof(struct nix_cq_ctx_s)); else if (req->ctype == NIX_AQ_CTYPE_RSS) memcpy(&rsp->rss, ctx, sizeof(struct nix_rsse_s)); else if (req->ctype == NIX_AQ_CTYPE_MCE) memcpy(&rsp->mce, ctx, sizeof(struct nix_rx_mce_s)); } } spin_unlock(&aq->lock); return 0; } static int nix_lf_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req) { struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc); struct nix_aq_enq_req aq_req; unsigned long *bmap; int qidx, q_cnt = 0; int err = 0, rc; if (!pfvf->cq_ctx || !pfvf->sq_ctx || !pfvf->rq_ctx) return NIX_AF_ERR_AQ_ENQUEUE; memset(&aq_req, 0, sizeof(struct nix_aq_enq_req)); aq_req.hdr.pcifunc = req->hdr.pcifunc; if (req->ctype == NIX_AQ_CTYPE_CQ) { aq_req.cq.ena = 0; aq_req.cq_mask.ena = 1; q_cnt = pfvf->cq_ctx->qsize; bmap = pfvf->cq_bmap; } if (req->ctype == NIX_AQ_CTYPE_SQ) { aq_req.sq.ena = 0; aq_req.sq_mask.ena = 1; q_cnt = pfvf->sq_ctx->qsize; bmap = pfvf->sq_bmap; } if (req->ctype == NIX_AQ_CTYPE_RQ) { aq_req.rq.ena = 0; aq_req.rq_mask.ena = 1; q_cnt = pfvf->rq_ctx->qsize; bmap = pfvf->rq_bmap; } aq_req.ctype = req->ctype; aq_req.op = NIX_AQ_INSTOP_WRITE; for (qidx = 0; qidx < q_cnt; qidx++) { if (!test_bit(qidx, bmap)) continue; aq_req.qidx = qidx; rc = rvu_nix_aq_enq_inst(rvu, &aq_req, NULL); if (rc) { err = rc; dev_err(rvu->dev, "Failed to disable %s:%d context\n", (req->ctype == NIX_AQ_CTYPE_CQ) ? "CQ" : ((req->ctype == NIX_AQ_CTYPE_RQ) ? "RQ" : "SQ"), qidx); } } return err; } int rvu_mbox_handler_nix_aq_enq(struct rvu *rvu, struct nix_aq_enq_req *req, struct nix_aq_enq_rsp *rsp) { return rvu_nix_aq_enq_inst(rvu, req, rsp); } int rvu_mbox_handler_nix_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req, struct msg_rsp *rsp) { return nix_lf_hwctx_disable(rvu, req); } int rvu_mbox_handler_nix_lf_alloc(struct rvu *rvu, struct nix_lf_alloc_req *req, struct nix_lf_alloc_rsp *rsp) { int nixlf, qints, hwctx_size, intf, err, rc = 0; struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; struct rvu_block *block; struct rvu_pfvf *pfvf; u64 cfg, ctx_cfg; int blkaddr; if (!req->rq_cnt || !req->sq_cnt || !req->cq_cnt) return NIX_AF_ERR_PARAM; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; block = &hw->block[blkaddr]; nixlf = rvu_get_lf(rvu, block, pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; /* Check if requested 'NIXLF <=> NPALF' mapping is valid */ if (req->npa_func) { /* If default, use 'this' NIXLF's PFFUNC */ if (req->npa_func == RVU_DEFAULT_PF_FUNC) req->npa_func = pcifunc; if (!is_pffunc_map_valid(rvu, req->npa_func, BLKTYPE_NPA)) return NIX_AF_INVAL_NPA_PF_FUNC; } /* Check if requested 'NIXLF <=> SSOLF' mapping is valid */ if (req->sso_func) { /* If default, use 'this' NIXLF's PFFUNC */ if (req->sso_func == RVU_DEFAULT_PF_FUNC) req->sso_func = pcifunc; if (!is_pffunc_map_valid(rvu, req->sso_func, BLKTYPE_SSO)) return NIX_AF_INVAL_SSO_PF_FUNC; } /* If RSS is being enabled, check if requested config is valid. * RSS table size should be power of two, otherwise * RSS_GRP::OFFSET + adder might go beyond that group or * won't be able to use entire table. */ if (req->rss_sz && (req->rss_sz > MAX_RSS_INDIR_TBL_SIZE || !is_power_of_2(req->rss_sz))) return NIX_AF_ERR_RSS_SIZE_INVALID; if (req->rss_sz && (!req->rss_grps || req->rss_grps > MAX_RSS_GROUPS)) return NIX_AF_ERR_RSS_GRPS_INVALID; /* Reset this NIX LF */ err = rvu_lf_reset(rvu, block, nixlf); if (err) { dev_err(rvu->dev, "Failed to reset NIX%d LF%d\n", block->addr - BLKADDR_NIX0, nixlf); return NIX_AF_ERR_LF_RESET; } ctx_cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST3); /* Alloc NIX RQ HW context memory and config the base */ hwctx_size = 1UL << ((ctx_cfg >> 4) & 0xF); err = qmem_alloc(rvu->dev, &pfvf->rq_ctx, req->rq_cnt, hwctx_size); if (err) goto free_mem; pfvf->rq_bmap = kcalloc(req->rq_cnt, sizeof(long), GFP_KERNEL); if (!pfvf->rq_bmap) goto free_mem; rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_BASE(nixlf), (u64)pfvf->rq_ctx->iova); /* Set caching and queue count in HW */ cfg = BIT_ULL(36) | (req->rq_cnt - 1); rvu_write64(rvu, blkaddr, NIX_AF_LFX_RQS_CFG(nixlf), cfg); /* Alloc NIX SQ HW context memory and config the base */ hwctx_size = 1UL << (ctx_cfg & 0xF); err = qmem_alloc(rvu->dev, &pfvf->sq_ctx, req->sq_cnt, hwctx_size); if (err) goto free_mem; pfvf->sq_bmap = kcalloc(req->sq_cnt, sizeof(long), GFP_KERNEL); if (!pfvf->sq_bmap) goto free_mem; rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_BASE(nixlf), (u64)pfvf->sq_ctx->iova); cfg = BIT_ULL(36) | (req->sq_cnt - 1); rvu_write64(rvu, blkaddr, NIX_AF_LFX_SQS_CFG(nixlf), cfg); /* Alloc NIX CQ HW context memory and config the base */ hwctx_size = 1UL << ((ctx_cfg >> 8) & 0xF); err = qmem_alloc(rvu->dev, &pfvf->cq_ctx, req->cq_cnt, hwctx_size); if (err) goto free_mem; pfvf->cq_bmap = kcalloc(req->cq_cnt, sizeof(long), GFP_KERNEL); if (!pfvf->cq_bmap) goto free_mem; rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_BASE(nixlf), (u64)pfvf->cq_ctx->iova); cfg = BIT_ULL(36) | (req->cq_cnt - 1); rvu_write64(rvu, blkaddr, NIX_AF_LFX_CQS_CFG(nixlf), cfg); /* Initialize receive side scaling (RSS) */ hwctx_size = 1UL << ((ctx_cfg >> 12) & 0xF); err = nixlf_rss_ctx_init(rvu, blkaddr, pfvf, nixlf, req->rss_sz, req->rss_grps, hwctx_size); if (err) goto free_mem; /* Alloc memory for CQINT's HW contexts */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); qints = (cfg >> 24) & 0xFFF; hwctx_size = 1UL << ((ctx_cfg >> 24) & 0xF); err = qmem_alloc(rvu->dev, &pfvf->cq_ints_ctx, qints, hwctx_size); if (err) goto free_mem; rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_BASE(nixlf), (u64)pfvf->cq_ints_ctx->iova); rvu_write64(rvu, blkaddr, NIX_AF_LFX_CINTS_CFG(nixlf), BIT_ULL(36)); /* Alloc memory for QINT's HW contexts */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); qints = (cfg >> 12) & 0xFFF; hwctx_size = 1UL << ((ctx_cfg >> 20) & 0xF); err = qmem_alloc(rvu->dev, &pfvf->nix_qints_ctx, qints, hwctx_size); if (err) goto free_mem; rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_BASE(nixlf), (u64)pfvf->nix_qints_ctx->iova); rvu_write64(rvu, blkaddr, NIX_AF_LFX_QINTS_CFG(nixlf), BIT_ULL(36)); /* Setup VLANX TPID's. * Use VLAN1 for 802.1Q * and VLAN0 for 802.1AD. */ cfg = (0x8100ULL << 16) | 0x88A8ULL; rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_CFG(nixlf), cfg); /* Enable LMTST for this NIX LF */ rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_CFG2(nixlf), BIT_ULL(0)); /* Set CQE/WQE size, NPA_PF_FUNC for SQBs and also SSO_PF_FUNC */ if (req->npa_func) cfg = req->npa_func; if (req->sso_func) cfg |= (u64)req->sso_func << 16; cfg |= (u64)req->xqe_sz << 33; rvu_write64(rvu, blkaddr, NIX_AF_LFX_CFG(nixlf), cfg); /* Config Rx pkt length, csum checks and apad enable / disable */ rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), req->rx_cfg); intf = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX; err = nix_interface_init(rvu, pcifunc, intf, nixlf); if (err) goto free_mem; /* Disable NPC entries as NIXLF's contexts are not initialized yet */ rvu_npc_disable_default_entries(rvu, pcifunc, nixlf); goto exit; free_mem: nix_ctx_free(rvu, pfvf); rc = -ENOMEM; exit: /* Set macaddr of this PF/VF */ ether_addr_copy(rsp->mac_addr, pfvf->mac_addr); /* set SQB size info */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_SQ_CONST); rsp->sqb_size = (cfg >> 34) & 0xFFFF; rsp->rx_chan_base = pfvf->rx_chan_base; rsp->tx_chan_base = pfvf->tx_chan_base; rsp->rx_chan_cnt = pfvf->rx_chan_cnt; rsp->tx_chan_cnt = pfvf->tx_chan_cnt; rsp->lso_tsov4_idx = NIX_LSO_FORMAT_IDX_TSOV4; rsp->lso_tsov6_idx = NIX_LSO_FORMAT_IDX_TSOV6; /* Get HW supported stat count */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); rsp->lf_rx_stats = ((cfg >> 32) & 0xFF); rsp->lf_tx_stats = ((cfg >> 24) & 0xFF); /* Get count of CQ IRQs and error IRQs supported per LF */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST2); rsp->qints = ((cfg >> 12) & 0xFFF); rsp->cints = ((cfg >> 24) & 0xFFF); return rc; } int rvu_mbox_handler_nix_lf_free(struct rvu *rvu, struct msg_req *req, struct msg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; struct rvu_block *block; int blkaddr, nixlf, err; struct rvu_pfvf *pfvf; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; block = &hw->block[blkaddr]; nixlf = rvu_get_lf(rvu, block, pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_interface_deinit(rvu, pcifunc, nixlf); /* Reset this NIX LF */ err = rvu_lf_reset(rvu, block, nixlf); if (err) { dev_err(rvu->dev, "Failed to reset NIX%d LF%d\n", block->addr - BLKADDR_NIX0, nixlf); return NIX_AF_ERR_LF_RESET; } nix_ctx_free(rvu, pfvf); return 0; } int rvu_mbox_handler_nix_mark_format_cfg(struct rvu *rvu, struct nix_mark_format_cfg *req, struct nix_mark_format_cfg_rsp *rsp) { u16 pcifunc = req->hdr.pcifunc; struct nix_hw *nix_hw; struct rvu_pfvf *pfvf; int blkaddr, rc; u32 cfg; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; cfg = (((u32)req->offset & 0x7) << 16) | (((u32)req->y_mask & 0xF) << 12) | (((u32)req->y_val & 0xF) << 8) | (((u32)req->r_mask & 0xF) << 4) | ((u32)req->r_val & 0xF); rc = rvu_nix_reserve_mark_format(rvu, nix_hw, blkaddr, cfg); if (rc < 0) { dev_err(rvu->dev, "No mark_format_ctl for (pf:%d, vf:%d)", rvu_get_pf(pcifunc), pcifunc & RVU_PFVF_FUNC_MASK); return NIX_AF_ERR_MARK_CFG_FAIL; } rsp->mark_format_idx = rc; return 0; } /* Disable shaping of pkts by a scheduler queue * at a given scheduler level. */ static void nix_reset_tx_shaping(struct rvu *rvu, int blkaddr, int lvl, int schq) { u64 cir_reg = 0, pir_reg = 0; u64 cfg; switch (lvl) { case NIX_TXSCH_LVL_TL1: cir_reg = NIX_AF_TL1X_CIR(schq); pir_reg = 0; /* PIR not available at TL1 */ break; case NIX_TXSCH_LVL_TL2: cir_reg = NIX_AF_TL2X_CIR(schq); pir_reg = NIX_AF_TL2X_PIR(schq); break; case NIX_TXSCH_LVL_TL3: cir_reg = NIX_AF_TL3X_CIR(schq); pir_reg = NIX_AF_TL3X_PIR(schq); break; case NIX_TXSCH_LVL_TL4: cir_reg = NIX_AF_TL4X_CIR(schq); pir_reg = NIX_AF_TL4X_PIR(schq); break; } if (!cir_reg) return; cfg = rvu_read64(rvu, blkaddr, cir_reg); rvu_write64(rvu, blkaddr, cir_reg, cfg & ~BIT_ULL(0)); if (!pir_reg) return; cfg = rvu_read64(rvu, blkaddr, pir_reg); rvu_write64(rvu, blkaddr, pir_reg, cfg & ~BIT_ULL(0)); } static void nix_reset_tx_linkcfg(struct rvu *rvu, int blkaddr, int lvl, int schq) { struct rvu_hwinfo *hw = rvu->hw; int link; /* Reset TL4's SDP link config */ if (lvl == NIX_TXSCH_LVL_TL4) rvu_write64(rvu, blkaddr, NIX_AF_TL4X_SDP_LINK_CFG(schq), 0x00); if (lvl != NIX_TXSCH_LVL_TL2) return; /* Reset TL2's CGX or LBK link config */ for (link = 0; link < (hw->cgx_links + hw->lbk_links); link++) rvu_write64(rvu, blkaddr, NIX_AF_TL3_TL2X_LINKX_CFG(schq, link), 0x00); } static int rvu_get_tl1_schqs(struct rvu *rvu, int blkaddr, u16 pcifunc, u16 *schq_list, u16 *schq_cnt) { struct nix_txsch *txsch; struct nix_hw *nix_hw; struct rvu_pfvf *pfvf; u8 cgx_id, lmac_id; u16 schq_base; u32 *pfvf_map; int pf, intf; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -ENODEV; pfvf = rvu_get_pfvf(rvu, pcifunc); txsch = &nix_hw->txsch[NIX_TXSCH_LVL_TL1]; pfvf_map = txsch->pfvf_map; pf = rvu_get_pf(pcifunc); /* static allocation as two TL1's per link */ intf = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX; switch (intf) { case NIX_INTF_TYPE_CGX: rvu_get_cgx_lmac_id(pfvf->cgx_lmac, &cgx_id, &lmac_id); schq_base = (cgx_id * MAX_LMAC_PER_CGX + lmac_id) * 2; break; case NIX_INTF_TYPE_LBK: schq_base = rvu->cgx_cnt_max * MAX_LMAC_PER_CGX * 2; break; default: return -ENODEV; } if (schq_base + 1 > txsch->schq.max) return -ENODEV; /* init pfvf_map as we store flags */ if (pfvf_map[schq_base] == U32_MAX) { pfvf_map[schq_base] = TXSCH_MAP((pf << RVU_PFVF_PF_SHIFT), 0); pfvf_map[schq_base + 1] = TXSCH_MAP((pf << RVU_PFVF_PF_SHIFT), 0); /* Onetime reset for TL1 */ nix_reset_tx_linkcfg(rvu, blkaddr, NIX_TXSCH_LVL_TL1, schq_base); nix_reset_tx_shaping(rvu, blkaddr, NIX_TXSCH_LVL_TL1, schq_base); nix_reset_tx_linkcfg(rvu, blkaddr, NIX_TXSCH_LVL_TL1, schq_base + 1); nix_reset_tx_shaping(rvu, blkaddr, NIX_TXSCH_LVL_TL1, schq_base + 1); } if (schq_list && schq_cnt) { schq_list[0] = schq_base; schq_list[1] = schq_base + 1; *schq_cnt = 2; } return 0; } int rvu_mbox_handler_nix_txsch_alloc(struct rvu *rvu, struct nix_txsch_alloc_req *req, struct nix_txsch_alloc_rsp *rsp) { u16 pcifunc = req->hdr.pcifunc; struct nix_txsch *txsch; int lvl, idx, req_schq; struct rvu_pfvf *pfvf; struct nix_hw *nix_hw; int blkaddr, rc = 0; u32 *pfvf_map; u16 schq; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; mutex_lock(&rvu->rsrc_lock); for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { txsch = &nix_hw->txsch[lvl]; req_schq = req->schq_contig[lvl] + req->schq[lvl]; pfvf_map = txsch->pfvf_map; if (!req_schq) continue; /* There are only 28 TL1s */ if (lvl == NIX_TXSCH_LVL_TL1) { if (req->schq_contig[lvl] || req->schq[lvl] > 2 || rvu_get_tl1_schqs(rvu, blkaddr, pcifunc, NULL, NULL)) goto err; continue; } /* Check if request is valid */ if (req_schq > MAX_TXSCHQ_PER_FUNC) goto err; /* If contiguous queues are needed, check for availability */ if (req->schq_contig[lvl] && !rvu_rsrc_check_contig(&txsch->schq, req->schq_contig[lvl])) goto err; /* Check if full request can be accommodated */ if (req_schq >= rvu_rsrc_free_count(&txsch->schq)) goto err; } for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { txsch = &nix_hw->txsch[lvl]; rsp->schq_contig[lvl] = req->schq_contig[lvl]; pfvf_map = txsch->pfvf_map; rsp->schq[lvl] = req->schq[lvl]; if (!req->schq[lvl] && !req->schq_contig[lvl]) continue; /* Handle TL1 specially as it is * allocation is restricted to 2 TL1's * per link */ if (lvl == NIX_TXSCH_LVL_TL1) { rsp->schq_contig[lvl] = 0; rvu_get_tl1_schqs(rvu, blkaddr, pcifunc, &rsp->schq_list[lvl][0], &rsp->schq[lvl]); continue; } /* Alloc contiguous queues first */ if (req->schq_contig[lvl]) { schq = rvu_alloc_rsrc_contig(&txsch->schq, req->schq_contig[lvl]); for (idx = 0; idx < req->schq_contig[lvl]; idx++) { pfvf_map[schq] = TXSCH_MAP(pcifunc, 0); nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); nix_reset_tx_shaping(rvu, blkaddr, lvl, schq); rsp->schq_contig_list[lvl][idx] = schq; schq++; } } /* Alloc non-contiguous queues */ for (idx = 0; idx < req->schq[lvl]; idx++) { schq = rvu_alloc_rsrc(&txsch->schq); pfvf_map[schq] = TXSCH_MAP(pcifunc, 0); nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); nix_reset_tx_shaping(rvu, blkaddr, lvl, schq); rsp->schq_list[lvl][idx] = schq; } } goto exit; err: rc = NIX_AF_ERR_TLX_ALLOC_FAIL; exit: mutex_unlock(&rvu->rsrc_lock); return rc; } static int nix_txschq_free(struct rvu *rvu, u16 pcifunc) { int blkaddr, nixlf, lvl, schq, err; struct rvu_hwinfo *hw = rvu->hw; struct nix_txsch *txsch; struct nix_hw *nix_hw; u64 cfg; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; /* Disable TL2/3 queue links before SMQ flush*/ mutex_lock(&rvu->rsrc_lock); for (lvl = NIX_TXSCH_LVL_TL4; lvl < NIX_TXSCH_LVL_CNT; lvl++) { if (lvl != NIX_TXSCH_LVL_TL2 && lvl != NIX_TXSCH_LVL_TL4) continue; txsch = &nix_hw->txsch[lvl]; for (schq = 0; schq < txsch->schq.max; schq++) { if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) continue; nix_reset_tx_linkcfg(rvu, blkaddr, lvl, schq); } } /* Flush SMQs */ txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ]; for (schq = 0; schq < txsch->schq.max; schq++) { if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) continue; cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(schq)); /* Do SMQ flush and set enqueue xoff */ cfg |= BIT_ULL(50) | BIT_ULL(49); rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(schq), cfg); /* Wait for flush to complete */ err = rvu_poll_reg(rvu, blkaddr, NIX_AF_SMQX_CFG(schq), BIT_ULL(49), true); if (err) { dev_err(rvu->dev, "NIXLF%d: SMQ%d flush failed\n", nixlf, schq); } } /* Now free scheduler queues to free pool */ for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { /* Free all SCHQ's except TL1 as * TL1 is shared across all VF's for a RVU PF */ if (lvl == NIX_TXSCH_LVL_TL1) continue; txsch = &nix_hw->txsch[lvl]; for (schq = 0; schq < txsch->schq.max; schq++) { if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) continue; rvu_free_rsrc(&txsch->schq, schq); txsch->pfvf_map[schq] = 0; } } mutex_unlock(&rvu->rsrc_lock); /* Sync cached info for this LF in NDC-TX to LLC/DRAM */ rvu_write64(rvu, blkaddr, NIX_AF_NDC_TX_SYNC, BIT_ULL(12) | nixlf); err = rvu_poll_reg(rvu, blkaddr, NIX_AF_NDC_TX_SYNC, BIT_ULL(12), true); if (err) dev_err(rvu->dev, "NDC-TX sync failed for NIXLF %d\n", nixlf); return 0; } static int nix_txschq_free_one(struct rvu *rvu, struct nix_txsch_free_req *req) { int lvl, schq, nixlf, blkaddr, rc; struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; struct nix_txsch *txsch; struct nix_hw *nix_hw; u32 *pfvf_map; u64 cfg; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; lvl = req->schq_lvl; schq = req->schq; txsch = &nix_hw->txsch[lvl]; /* Don't allow freeing TL1 */ if (lvl > NIX_TXSCH_LVL_TL2 || schq >= txsch->schq.max) goto err; pfvf_map = txsch->pfvf_map; mutex_lock(&rvu->rsrc_lock); if (TXSCH_MAP_FUNC(pfvf_map[schq]) != pcifunc) { mutex_unlock(&rvu->rsrc_lock); goto err; } /* Flush if it is a SMQ. Onus of disabling * TL2/3 queue links before SMQ flush is on user */ if (lvl == NIX_TXSCH_LVL_SMQ) { cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(schq)); /* Do SMQ flush and set enqueue xoff */ cfg |= BIT_ULL(50) | BIT_ULL(49); rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(schq), cfg); /* Wait for flush to complete */ rc = rvu_poll_reg(rvu, blkaddr, NIX_AF_SMQX_CFG(schq), BIT_ULL(49), true); if (rc) { dev_err(rvu->dev, "NIXLF%d: SMQ%d flush failed\n", nixlf, schq); } } /* Free the resource */ rvu_free_rsrc(&txsch->schq, schq); txsch->pfvf_map[schq] = 0; mutex_unlock(&rvu->rsrc_lock); return 0; err: return NIX_AF_ERR_TLX_INVALID; } int rvu_mbox_handler_nix_txsch_free(struct rvu *rvu, struct nix_txsch_free_req *req, struct msg_rsp *rsp) { if (req->flags & TXSCHQ_FREE_ALL) return nix_txschq_free(rvu, req->hdr.pcifunc); else return nix_txschq_free_one(rvu, req); } static bool is_txschq_config_valid(struct rvu *rvu, u16 pcifunc, int blkaddr, int lvl, u64 reg, u64 regval) { u64 regbase = reg & 0xFFFF; u16 schq, parent; if (!rvu_check_valid_reg(TXSCHQ_HWREGMAP, lvl, reg)) return false; schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); /* Check if this schq belongs to this PF/VF or not */ if (!is_valid_txschq(rvu, blkaddr, lvl, pcifunc, schq)) return false; parent = (regval >> 16) & 0x1FF; /* Validate MDQ's TL4 parent */ if (regbase == NIX_AF_MDQX_PARENT(0) && !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL4, pcifunc, parent)) return false; /* Validate TL4's TL3 parent */ if (regbase == NIX_AF_TL4X_PARENT(0) && !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL3, pcifunc, parent)) return false; /* Validate TL3's TL2 parent */ if (regbase == NIX_AF_TL3X_PARENT(0) && !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL2, pcifunc, parent)) return false; /* Validate TL2's TL1 parent */ if (regbase == NIX_AF_TL2X_PARENT(0) && !is_valid_txschq(rvu, blkaddr, NIX_TXSCH_LVL_TL1, pcifunc, parent)) return false; return true; } static int nix_tl1_default_cfg(struct rvu *rvu, u16 pcifunc) { u16 schq_list[2], schq_cnt, schq; int blkaddr, idx, err = 0; u16 map_func, map_flags; struct nix_hw *nix_hw; u64 reg, regval; u32 *pfvf_map; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; pfvf_map = nix_hw->txsch[NIX_TXSCH_LVL_TL1].pfvf_map; mutex_lock(&rvu->rsrc_lock); err = rvu_get_tl1_schqs(rvu, blkaddr, pcifunc, schq_list, &schq_cnt); if (err) goto unlock; for (idx = 0; idx < schq_cnt; idx++) { schq = schq_list[idx]; map_func = TXSCH_MAP_FUNC(pfvf_map[schq]); map_flags = TXSCH_MAP_FLAGS(pfvf_map[schq]); /* check if config is already done or this is pf */ if (map_flags & NIX_TXSCHQ_TL1_CFG_DONE) continue; /* default configuration */ reg = NIX_AF_TL1X_TOPOLOGY(schq); regval = (TXSCH_TL1_DFLT_RR_PRIO << 1); rvu_write64(rvu, blkaddr, reg, regval); reg = NIX_AF_TL1X_SCHEDULE(schq); regval = TXSCH_TL1_DFLT_RR_QTM; rvu_write64(rvu, blkaddr, reg, regval); reg = NIX_AF_TL1X_CIR(schq); regval = 0; rvu_write64(rvu, blkaddr, reg, regval); map_flags |= NIX_TXSCHQ_TL1_CFG_DONE; pfvf_map[schq] = TXSCH_MAP(map_func, map_flags); } unlock: mutex_unlock(&rvu->rsrc_lock); return err; } int rvu_mbox_handler_nix_txschq_cfg(struct rvu *rvu, struct nix_txschq_config *req, struct msg_rsp *rsp) { u16 schq, pcifunc = req->hdr.pcifunc; struct rvu_hwinfo *hw = rvu->hw; u64 reg, regval, schq_regbase; struct nix_txsch *txsch; u16 map_func, map_flags; struct nix_hw *nix_hw; int blkaddr, idx, err; u32 *pfvf_map; int nixlf; if (req->lvl >= NIX_TXSCH_LVL_CNT || req->num_regs > MAX_REGS_PER_MBOX_MSG) return NIX_AF_INVAL_TXSCHQ_CFG; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; txsch = &nix_hw->txsch[req->lvl]; pfvf_map = txsch->pfvf_map; /* VF is only allowed to trigger * setting default cfg on TL1 */ if (pcifunc & RVU_PFVF_FUNC_MASK && req->lvl == NIX_TXSCH_LVL_TL1) { return nix_tl1_default_cfg(rvu, pcifunc); } for (idx = 0; idx < req->num_regs; idx++) { reg = req->reg[idx]; regval = req->regval[idx]; schq_regbase = reg & 0xFFFF; if (!is_txschq_config_valid(rvu, pcifunc, blkaddr, txsch->lvl, reg, regval)) return NIX_AF_INVAL_TXSCHQ_CFG; /* Replace PF/VF visible NIXLF slot with HW NIXLF id */ if (schq_regbase == NIX_AF_SMQX_CFG(0)) { nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); regval &= ~(0x7FULL << 24); regval |= ((u64)nixlf << 24); } /* Mark config as done for TL1 by PF */ if (schq_regbase >= NIX_AF_TL1X_SCHEDULE(0) && schq_regbase <= NIX_AF_TL1X_GREEN_BYTES(0)) { schq = TXSCHQ_IDX(reg, TXSCHQ_IDX_SHIFT); mutex_lock(&rvu->rsrc_lock); map_func = TXSCH_MAP_FUNC(pfvf_map[schq]); map_flags = TXSCH_MAP_FLAGS(pfvf_map[schq]); map_flags |= NIX_TXSCHQ_TL1_CFG_DONE; pfvf_map[schq] = TXSCH_MAP(map_func, map_flags); mutex_unlock(&rvu->rsrc_lock); } rvu_write64(rvu, blkaddr, reg, regval); /* Check for SMQ flush, if so, poll for its completion */ if (schq_regbase == NIX_AF_SMQX_CFG(0) && (regval & BIT_ULL(49))) { err = rvu_poll_reg(rvu, blkaddr, reg, BIT_ULL(49), true); if (err) return NIX_AF_SMQ_FLUSH_FAILED; } } return 0; } static int nix_rx_vtag_cfg(struct rvu *rvu, int nixlf, int blkaddr, struct nix_vtag_config *req) { u64 regval = req->vtag_size; if (req->rx.vtag_type > 7 || req->vtag_size > VTAGSIZE_T8) return -EINVAL; if (req->rx.capture_vtag) regval |= BIT_ULL(5); if (req->rx.strip_vtag) regval |= BIT_ULL(4); rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_VTAG_TYPEX(nixlf, req->rx.vtag_type), regval); return 0; } int rvu_mbox_handler_nix_vtag_cfg(struct rvu *rvu, struct nix_vtag_config *req, struct msg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; int blkaddr, nixlf, err; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; if (req->cfg_type) { err = nix_rx_vtag_cfg(rvu, nixlf, blkaddr, req); if (err) return NIX_AF_ERR_PARAM; } else { /* TODO: handle tx vtag configuration */ return 0; } return 0; } static int nix_setup_mce(struct rvu *rvu, int mce, u8 op, u16 pcifunc, int next, bool eol) { struct nix_aq_enq_req aq_req; int err; aq_req.hdr.pcifunc = 0; aq_req.ctype = NIX_AQ_CTYPE_MCE; aq_req.op = op; aq_req.qidx = mce; /* Forward bcast pkts to RQ0, RSS not needed */ aq_req.mce.op = 0; aq_req.mce.index = 0; aq_req.mce.eol = eol; aq_req.mce.pf_func = pcifunc; aq_req.mce.next = next; /* All fields valid */ *(u64 *)(&aq_req.mce_mask) = ~0ULL; err = rvu_nix_aq_enq_inst(rvu, &aq_req, NULL); if (err) { dev_err(rvu->dev, "Failed to setup Bcast MCE for PF%d:VF%d\n", rvu_get_pf(pcifunc), pcifunc & RVU_PFVF_FUNC_MASK); return err; } return 0; } static int nix_update_mce_list(struct nix_mce_list *mce_list, u16 pcifunc, int idx, bool add) { struct mce *mce, *tail = NULL; bool delete = false; /* Scan through the current list */ hlist_for_each_entry(mce, &mce_list->head, node) { /* If already exists, then delete */ if (mce->pcifunc == pcifunc && !add) { delete = true; break; } tail = mce; } if (delete) { hlist_del(&mce->node); kfree(mce); mce_list->count--; return 0; } if (!add) return 0; /* Add a new one to the list, at the tail */ mce = kzalloc(sizeof(*mce), GFP_KERNEL); if (!mce) return -ENOMEM; mce->idx = idx; mce->pcifunc = pcifunc; if (!tail) hlist_add_head(&mce->node, &mce_list->head); else hlist_add_behind(&mce->node, &tail->node); mce_list->count++; return 0; } static int nix_update_bcast_mce_list(struct rvu *rvu, u16 pcifunc, bool add) { int err = 0, idx, next_idx, count; struct nix_mce_list *mce_list; struct mce *mce, *next_mce; struct nix_mcast *mcast; struct nix_hw *nix_hw; struct rvu_pfvf *pfvf; int blkaddr; /* Broadcast pkt replication is not needed for AF's VFs, hence skip */ if (is_afvf(pcifunc)) return 0; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return 0; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return 0; mcast = &nix_hw->mcast; /* Get this PF/VF func's MCE index */ pfvf = rvu_get_pfvf(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK); idx = pfvf->bcast_mce_idx + (pcifunc & RVU_PFVF_FUNC_MASK); mce_list = &pfvf->bcast_mce_list; if (idx > (pfvf->bcast_mce_idx + mce_list->max)) { dev_err(rvu->dev, "%s: Idx %d > max MCE idx %d, for PF%d bcast list\n", __func__, idx, mce_list->max, pcifunc >> RVU_PFVF_PF_SHIFT); return -EINVAL; } mutex_lock(&mcast->mce_lock); err = nix_update_mce_list(mce_list, pcifunc, idx, add); if (err) goto end; /* Disable MCAM entry in NPC */ if (!mce_list->count) goto end; count = mce_list->count; /* Dump the updated list to HW */ hlist_for_each_entry(mce, &mce_list->head, node) { next_idx = 0; count--; if (count) { next_mce = hlist_entry(mce->node.next, struct mce, node); next_idx = next_mce->idx; } /* EOL should be set in last MCE */ err = nix_setup_mce(rvu, mce->idx, NIX_AQ_INSTOP_WRITE, mce->pcifunc, next_idx, count ? false : true); if (err) goto end; } end: mutex_unlock(&mcast->mce_lock); return err; } static int nix_setup_bcast_tables(struct rvu *rvu, struct nix_hw *nix_hw) { struct nix_mcast *mcast = &nix_hw->mcast; int err, pf, numvfs, idx; struct rvu_pfvf *pfvf; u16 pcifunc; u64 cfg; /* Skip PF0 (i.e AF) */ for (pf = 1; pf < (rvu->cgx_mapped_pfs + 1); pf++) { cfg = rvu_read64(rvu, BLKADDR_RVUM, RVU_PRIV_PFX_CFG(pf)); /* If PF is not enabled, nothing to do */ if (!((cfg >> 20) & 0x01)) continue; /* Get numVFs attached to this PF */ numvfs = (cfg >> 12) & 0xFF; pfvf = &rvu->pf[pf]; /* Save the start MCE */ pfvf->bcast_mce_idx = nix_alloc_mce_list(mcast, numvfs + 1); nix_mce_list_init(&pfvf->bcast_mce_list, numvfs + 1); for (idx = 0; idx < (numvfs + 1); idx++) { /* idx-0 is for PF, followed by VFs */ pcifunc = (pf << RVU_PFVF_PF_SHIFT); pcifunc |= idx; /* Add dummy entries now, so that we don't have to check * for whether AQ_OP should be INIT/WRITE later on. * Will be updated when a NIXLF is attached/detached to * these PF/VFs. */ err = nix_setup_mce(rvu, pfvf->bcast_mce_idx + idx, NIX_AQ_INSTOP_INIT, pcifunc, 0, true); if (err) return err; } } return 0; } static int nix_setup_mcast(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) { struct nix_mcast *mcast = &nix_hw->mcast; struct rvu_hwinfo *hw = rvu->hw; int err, size; size = (rvu_read64(rvu, blkaddr, NIX_AF_CONST3) >> 16) & 0x0F; size = (1ULL << size); /* Alloc memory for multicast/mirror replication entries */ err = qmem_alloc(rvu->dev, &mcast->mce_ctx, (256UL << MC_TBL_SIZE), size); if (err) return -ENOMEM; rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_BASE, (u64)mcast->mce_ctx->iova); /* Set max list length equal to max no of VFs per PF + PF itself */ rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_CFG, BIT_ULL(36) | (hw->max_vfs_per_pf << 4) | MC_TBL_SIZE); /* Alloc memory for multicast replication buffers */ size = rvu_read64(rvu, blkaddr, NIX_AF_MC_MIRROR_CONST) & 0xFFFF; err = qmem_alloc(rvu->dev, &mcast->mcast_buf, (8UL << MC_BUF_CNT), size); if (err) return -ENOMEM; rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_BUF_BASE, (u64)mcast->mcast_buf->iova); /* Alloc pkind for NIX internal RX multicast/mirror replay */ mcast->replay_pkind = rvu_alloc_rsrc(&hw->pkind.rsrc); rvu_write64(rvu, blkaddr, NIX_AF_RX_MCAST_BUF_CFG, BIT_ULL(63) | (mcast->replay_pkind << 24) | BIT_ULL(20) | MC_BUF_CNT); mutex_init(&mcast->mce_lock); return nix_setup_bcast_tables(rvu, nix_hw); } static int nix_setup_txschq(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) { struct nix_txsch *txsch; u64 cfg, reg; int err, lvl; /* Get scheduler queue count of each type and alloc * bitmap for each for alloc/free/attach operations. */ for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { txsch = &nix_hw->txsch[lvl]; txsch->lvl = lvl; switch (lvl) { case NIX_TXSCH_LVL_SMQ: reg = NIX_AF_MDQ_CONST; break; case NIX_TXSCH_LVL_TL4: reg = NIX_AF_TL4_CONST; break; case NIX_TXSCH_LVL_TL3: reg = NIX_AF_TL3_CONST; break; case NIX_TXSCH_LVL_TL2: reg = NIX_AF_TL2_CONST; break; case NIX_TXSCH_LVL_TL1: reg = NIX_AF_TL1_CONST; break; } cfg = rvu_read64(rvu, blkaddr, reg); txsch->schq.max = cfg & 0xFFFF; err = rvu_alloc_bitmap(&txsch->schq); if (err) return err; /* Allocate memory for scheduler queues to * PF/VF pcifunc mapping info. */ txsch->pfvf_map = devm_kcalloc(rvu->dev, txsch->schq.max, sizeof(u32), GFP_KERNEL); if (!txsch->pfvf_map) return -ENOMEM; memset(txsch->pfvf_map, U8_MAX, txsch->schq.max * sizeof(u32)); } return 0; } int rvu_nix_reserve_mark_format(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr, u32 cfg) { int fmt_idx; for (fmt_idx = 0; fmt_idx < nix_hw->mark_format.in_use; fmt_idx++) { if (nix_hw->mark_format.cfg[fmt_idx] == cfg) return fmt_idx; } if (fmt_idx >= nix_hw->mark_format.total) return -ERANGE; rvu_write64(rvu, blkaddr, NIX_AF_MARK_FORMATX_CTL(fmt_idx), cfg); nix_hw->mark_format.cfg[fmt_idx] = cfg; nix_hw->mark_format.in_use++; return fmt_idx; } static int nix_af_mark_format_setup(struct rvu *rvu, struct nix_hw *nix_hw, int blkaddr) { u64 cfgs[] = { [NIX_MARK_CFG_IP_DSCP_RED] = 0x10003, [NIX_MARK_CFG_IP_DSCP_YELLOW] = 0x11200, [NIX_MARK_CFG_IP_DSCP_YELLOW_RED] = 0x11203, [NIX_MARK_CFG_IP_ECN_RED] = 0x6000c, [NIX_MARK_CFG_IP_ECN_YELLOW] = 0x60c00, [NIX_MARK_CFG_IP_ECN_YELLOW_RED] = 0x60c0c, [NIX_MARK_CFG_VLAN_DEI_RED] = 0x30008, [NIX_MARK_CFG_VLAN_DEI_YELLOW] = 0x30800, [NIX_MARK_CFG_VLAN_DEI_YELLOW_RED] = 0x30808, }; int i, rc; u64 total; total = (rvu_read64(rvu, blkaddr, NIX_AF_PSE_CONST) & 0xFF00) >> 8; nix_hw->mark_format.total = (u8)total; nix_hw->mark_format.cfg = devm_kcalloc(rvu->dev, total, sizeof(u32), GFP_KERNEL); if (!nix_hw->mark_format.cfg) return -ENOMEM; for (i = 0; i < NIX_MARK_CFG_MAX; i++) { rc = rvu_nix_reserve_mark_format(rvu, nix_hw, blkaddr, cfgs[i]); if (rc < 0) dev_err(rvu->dev, "Err %d in setup mark format %d\n", i, rc); } return 0; } int rvu_mbox_handler_nix_stats_rst(struct rvu *rvu, struct msg_req *req, struct msg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; int i, nixlf, blkaddr; u64 stats; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; /* Get stats count supported by HW */ stats = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); /* Reset tx stats */ for (i = 0; i < ((stats >> 24) & 0xFF); i++) rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_STATX(nixlf, i), 0); /* Reset rx stats */ for (i = 0; i < ((stats >> 32) & 0xFF); i++) rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_STATX(nixlf, i), 0); return 0; } /* Returns the ALG index to be set into NPC_RX_ACTION */ static int get_flowkey_alg_idx(struct nix_hw *nix_hw, u32 flow_cfg) { int i; /* Scan over exiting algo entries to find a match */ for (i = 0; i < nix_hw->flowkey.in_use; i++) if (nix_hw->flowkey.flowkey[i] == flow_cfg) return i; return -ERANGE; } static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg) { int idx, nr_field, key_off, field_marker, keyoff_marker; int max_key_off, max_bit_pos, group_member; struct nix_rx_flowkey_alg *field; struct nix_rx_flowkey_alg tmp; u32 key_type, valid_key; if (!alg) return -EINVAL; #define FIELDS_PER_ALG 5 #define MAX_KEY_OFF 40 /* Clear all fields */ memset(alg, 0, sizeof(uint64_t) * FIELDS_PER_ALG); /* Each of the 32 possible flow key algorithm definitions should * fall into above incremental config (except ALG0). Otherwise a * single NPC MCAM entry is not sufficient for supporting RSS. * * If a different definition or combination needed then NPC MCAM * has to be programmed to filter such pkts and it's action should * point to this definition to calculate flowtag or hash. * * The `for loop` goes over _all_ protocol field and the following * variables depicts the state machine forward progress logic. * * keyoff_marker - Enabled when hash byte length needs to be accounted * in field->key_offset update. * field_marker - Enabled when a new field needs to be selected. * group_member - Enabled when protocol is part of a group. */ keyoff_marker = 0; max_key_off = 0; group_member = 0; nr_field = 0; key_off = 0; field_marker = 1; field = &tmp; max_bit_pos = fls(flow_cfg); for (idx = 0; idx < max_bit_pos && nr_field < FIELDS_PER_ALG && key_off < MAX_KEY_OFF; idx++) { key_type = BIT(idx); valid_key = flow_cfg & key_type; /* Found a field marker, reset the field values */ if (field_marker) memset(&tmp, 0, sizeof(tmp)); switch (key_type) { case NIX_FLOW_KEY_TYPE_PORT: field->sel_chan = true; /* This should be set to 1, when SEL_CHAN is set */ field->bytesm1 = 1; field_marker = true; keyoff_marker = true; break; case NIX_FLOW_KEY_TYPE_IPV4: field->lid = NPC_LID_LC; field->ltype_match = NPC_LT_LC_IP; field->hdr_offset = 12; /* SIP offset */ field->bytesm1 = 7; /* SIP + DIP, 8 bytes */ field->ltype_mask = 0xF; /* Match only IPv4 */ field_marker = true; keyoff_marker = false; break; case NIX_FLOW_KEY_TYPE_IPV6: field->lid = NPC_LID_LC; field->ltype_match = NPC_LT_LC_IP6; field->hdr_offset = 8; /* SIP offset */ field->bytesm1 = 31; /* SIP + DIP, 32 bytes */ field->ltype_mask = 0xF; /* Match only IPv6 */ field_marker = true; keyoff_marker = true; break; case NIX_FLOW_KEY_TYPE_TCP: case NIX_FLOW_KEY_TYPE_UDP: case NIX_FLOW_KEY_TYPE_SCTP: field->lid = NPC_LID_LD; field->bytesm1 = 3; /* Sport + Dport, 4 bytes */ if (key_type == NIX_FLOW_KEY_TYPE_TCP && valid_key) { field->ltype_match |= NPC_LT_LD_TCP; group_member = true; } else if (key_type == NIX_FLOW_KEY_TYPE_UDP && valid_key) { field->ltype_match |= NPC_LT_LD_UDP; group_member = true; } else if (key_type == NIX_FLOW_KEY_TYPE_SCTP && valid_key) { field->ltype_match |= NPC_LT_LD_SCTP; group_member = true; } field->ltype_mask = ~field->ltype_match; if (key_type == NIX_FLOW_KEY_TYPE_SCTP) { /* Handle the case where any of the group item * is enabled in the group but not the final one */ if (group_member) { valid_key = true; group_member = false; } field_marker = true; keyoff_marker = true; } else { field_marker = false; keyoff_marker = false; } break; } field->ena = 1; /* Found a valid flow key type */ if (valid_key) { field->key_offset = key_off; memcpy(&alg[nr_field], field, sizeof(*field)); max_key_off = max(max_key_off, field->bytesm1 + 1); /* Found a field marker, get the next field */ if (field_marker) nr_field++; } /* Found a keyoff marker, update the new key_off */ if (keyoff_marker) { key_off += max_key_off; max_key_off = 0; } } /* Processed all the flow key types */ if (idx == max_bit_pos && key_off <= MAX_KEY_OFF) return 0; else return NIX_AF_ERR_RSS_NOSPC_FIELD; } static int reserve_flowkey_alg_idx(struct rvu *rvu, int blkaddr, u32 flow_cfg) { u64 field[FIELDS_PER_ALG]; struct nix_hw *hw; int fid, rc; hw = get_nix_hw(rvu->hw, blkaddr); if (!hw) return -EINVAL; /* No room to add new flow hash algoritham */ if (hw->flowkey.in_use >= NIX_FLOW_KEY_ALG_MAX) return NIX_AF_ERR_RSS_NOSPC_ALGO; /* Generate algo fields for the given flow_cfg */ rc = set_flowkey_fields((struct nix_rx_flowkey_alg *)field, flow_cfg); if (rc) return rc; /* Update ALGX_FIELDX register with generated fields */ for (fid = 0; fid < FIELDS_PER_ALG; fid++) rvu_write64(rvu, blkaddr, NIX_AF_RX_FLOW_KEY_ALGX_FIELDX(hw->flowkey.in_use, fid), field[fid]); /* Store the flow_cfg for futher lookup */ rc = hw->flowkey.in_use; hw->flowkey.flowkey[rc] = flow_cfg; hw->flowkey.in_use++; return rc; } int rvu_mbox_handler_nix_rss_flowkey_cfg(struct rvu *rvu, struct nix_rss_flowkey_cfg *req, struct nix_rss_flowkey_cfg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; int alg_idx, nixlf, blkaddr; struct nix_hw *nix_hw; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; alg_idx = get_flowkey_alg_idx(nix_hw, req->flowkey_cfg); /* Failed to get algo index from the exiting list, reserve new */ if (alg_idx < 0) { alg_idx = reserve_flowkey_alg_idx(rvu, blkaddr, req->flowkey_cfg); if (alg_idx < 0) return alg_idx; } rsp->alg_idx = alg_idx; rvu_npc_update_flowkey_alg_idx(rvu, pcifunc, nixlf, req->group, alg_idx, req->mcam_index); return 0; } static int nix_rx_flowkey_alg_cfg(struct rvu *rvu, int blkaddr) { u32 flowkey_cfg, minkey_cfg; int alg, fid, rc; /* Disable all flow key algx fieldx */ for (alg = 0; alg < NIX_FLOW_KEY_ALG_MAX; alg++) { for (fid = 0; fid < FIELDS_PER_ALG; fid++) rvu_write64(rvu, blkaddr, NIX_AF_RX_FLOW_KEY_ALGX_FIELDX(alg, fid), 0); } /* IPv4/IPv6 SIP/DIPs */ flowkey_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* TCPv4/v6 4-tuple, SIP, DIP, Sport, Dport */ minkey_cfg = flowkey_cfg; flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* UDPv4/v6 4-tuple, SIP, DIP, Sport, Dport */ flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_UDP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* SCTPv4/v6 4-tuple, SIP, DIP, Sport, Dport */ flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_SCTP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* TCP/UDP v4/v6 4-tuple, rest IP pkts 2-tuple */ flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP | NIX_FLOW_KEY_TYPE_UDP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* TCP/SCTP v4/v6 4-tuple, rest IP pkts 2-tuple */ flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP | NIX_FLOW_KEY_TYPE_SCTP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* UDP/SCTP v4/v6 4-tuple, rest IP pkts 2-tuple */ flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_UDP | NIX_FLOW_KEY_TYPE_SCTP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; /* TCP/UDP/SCTP v4/v6 4-tuple, rest IP pkts 2-tuple */ flowkey_cfg = minkey_cfg | NIX_FLOW_KEY_TYPE_TCP | NIX_FLOW_KEY_TYPE_UDP | NIX_FLOW_KEY_TYPE_SCTP; rc = reserve_flowkey_alg_idx(rvu, blkaddr, flowkey_cfg); if (rc < 0) return rc; return 0; } int rvu_mbox_handler_nix_set_mac_addr(struct rvu *rvu, struct nix_set_mac_addr *req, struct msg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; struct rvu_pfvf *pfvf; int blkaddr, nixlf; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; ether_addr_copy(pfvf->mac_addr, req->mac_addr); rvu_npc_install_ucast_entry(rvu, pcifunc, nixlf, pfvf->rx_chan_base, req->mac_addr); rvu_npc_update_rxvlan(rvu, pcifunc, nixlf); return 0; } int rvu_mbox_handler_nix_set_rx_mode(struct rvu *rvu, struct nix_rx_mode *req, struct msg_rsp *rsp) { bool allmulti = false, disable_promisc = false; struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; struct rvu_pfvf *pfvf; int blkaddr, nixlf; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; if (req->mode & NIX_RX_MODE_PROMISC) allmulti = false; else if (req->mode & NIX_RX_MODE_ALLMULTI) allmulti = true; else disable_promisc = true; if (disable_promisc) rvu_npc_disable_promisc_entry(rvu, pcifunc, nixlf); else rvu_npc_install_promisc_entry(rvu, pcifunc, nixlf, pfvf->rx_chan_base, allmulti); rvu_npc_update_rxvlan(rvu, pcifunc, nixlf); return 0; } static void nix_find_link_frs(struct rvu *rvu, struct nix_frs_cfg *req, u16 pcifunc) { int pf = rvu_get_pf(pcifunc); struct rvu_pfvf *pfvf; int maxlen, minlen; int numvfs, hwvf; int vf; /* Update with requester's min/max lengths */ pfvf = rvu_get_pfvf(rvu, pcifunc); pfvf->maxlen = req->maxlen; if (req->update_minlen) pfvf->minlen = req->minlen; maxlen = req->maxlen; minlen = req->update_minlen ? req->minlen : 0; /* Get this PF's numVFs and starting hwvf */ rvu_get_pf_numvfs(rvu, pf, &numvfs, &hwvf); /* For each VF, compare requested max/minlen */ for (vf = 0; vf < numvfs; vf++) { pfvf = &rvu->hwvf[hwvf + vf]; if (pfvf->maxlen > maxlen) maxlen = pfvf->maxlen; if (req->update_minlen && pfvf->minlen && pfvf->minlen < minlen) minlen = pfvf->minlen; } /* Compare requested max/minlen with PF's max/minlen */ pfvf = &rvu->pf[pf]; if (pfvf->maxlen > maxlen) maxlen = pfvf->maxlen; if (req->update_minlen && pfvf->minlen && pfvf->minlen < minlen) minlen = pfvf->minlen; /* Update the request with max/min PF's and it's VF's max/min */ req->maxlen = maxlen; if (req->update_minlen) req->minlen = minlen; } int rvu_mbox_handler_nix_set_hw_frs(struct rvu *rvu, struct nix_frs_cfg *req, struct msg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; int pf = rvu_get_pf(pcifunc); int blkaddr, schq, link = -1; struct nix_txsch *txsch; u64 cfg, lmac_fifo_len; struct nix_hw *nix_hw; u8 cgx = 0, lmac = 0; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; if (!req->sdp_link && req->maxlen > NIC_HW_MAX_FRS) return NIX_AF_ERR_FRS_INVALID; if (req->update_minlen && req->minlen < NIC_HW_MIN_FRS) return NIX_AF_ERR_FRS_INVALID; /* Check if requester wants to update SMQ's */ if (!req->update_smq) goto rx_frscfg; /* Update min/maxlen in each of the SMQ attached to this PF/VF */ txsch = &nix_hw->txsch[NIX_TXSCH_LVL_SMQ]; mutex_lock(&rvu->rsrc_lock); for (schq = 0; schq < txsch->schq.max; schq++) { if (TXSCH_MAP_FUNC(txsch->pfvf_map[schq]) != pcifunc) continue; cfg = rvu_read64(rvu, blkaddr, NIX_AF_SMQX_CFG(schq)); cfg = (cfg & ~(0xFFFFULL << 8)) | ((u64)req->maxlen << 8); if (req->update_minlen) cfg = (cfg & ~0x7FULL) | ((u64)req->minlen & 0x7F); rvu_write64(rvu, blkaddr, NIX_AF_SMQX_CFG(schq), cfg); } mutex_unlock(&rvu->rsrc_lock); rx_frscfg: /* Check if config is for SDP link */ if (req->sdp_link) { if (!hw->sdp_links) return NIX_AF_ERR_RX_LINK_INVALID; link = hw->cgx_links + hw->lbk_links; goto linkcfg; } /* Check if the request is from CGX mapped RVU PF */ if (is_pf_cgxmapped(rvu, pf)) { /* Get CGX and LMAC to which this PF is mapped and find link */ rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx, &lmac); link = (cgx * hw->lmac_per_cgx) + lmac; } else if (pf == 0) { /* For VFs of PF0 ingress is LBK port, so config LBK link */ link = hw->cgx_links; } if (link < 0) return NIX_AF_ERR_RX_LINK_INVALID; nix_find_link_frs(rvu, req, pcifunc); linkcfg: cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link)); cfg = (cfg & ~(0xFFFFULL << 16)) | ((u64)req->maxlen << 16); if (req->update_minlen) cfg = (cfg & ~0xFFFFULL) | req->minlen; rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), cfg); if (req->sdp_link || pf == 0) return 0; /* Update transmit credits for CGX links */ lmac_fifo_len = CGX_FIFO_LEN / cgx_get_lmac_cnt(rvu_cgx_pdata(cgx, rvu)); cfg = rvu_read64(rvu, blkaddr, NIX_AF_TX_LINKX_NORM_CREDIT(link)); cfg &= ~(0xFFFFFULL << 12); cfg |= ((lmac_fifo_len - req->maxlen) / 16) << 12; rvu_write64(rvu, blkaddr, NIX_AF_TX_LINKX_NORM_CREDIT(link), cfg); rvu_write64(rvu, blkaddr, NIX_AF_TX_LINKX_EXPR_CREDIT(link), cfg); return 0; } int rvu_mbox_handler_nix_rxvlan_alloc(struct rvu *rvu, struct msg_req *req, struct msg_rsp *rsp) { struct npc_mcam_alloc_entry_req alloc_req = { }; struct npc_mcam_alloc_entry_rsp alloc_rsp = { }; struct npc_mcam_free_entry_req free_req = { }; u16 pcifunc = req->hdr.pcifunc; int blkaddr, nixlf, err; struct rvu_pfvf *pfvf; /* LBK VFs do not have separate MCAM UCAST entry hence * skip allocating rxvlan for them */ if (is_afvf(pcifunc)) return 0; pfvf = rvu_get_pfvf(rvu, pcifunc); if (pfvf->rxvlan) return 0; /* alloc new mcam entry */ alloc_req.hdr.pcifunc = pcifunc; alloc_req.count = 1; err = rvu_mbox_handler_npc_mcam_alloc_entry(rvu, &alloc_req, &alloc_rsp); if (err) return err; /* update entry to enable rxvlan offload */ blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (blkaddr < 0) { err = NIX_AF_ERR_AF_LF_INVALID; goto free_entry; } nixlf = rvu_get_lf(rvu, &rvu->hw->block[blkaddr], pcifunc, 0); if (nixlf < 0) { err = NIX_AF_ERR_AF_LF_INVALID; goto free_entry; } pfvf->rxvlan_index = alloc_rsp.entry_list[0]; /* all it means is that rxvlan_index is valid */ pfvf->rxvlan = true; err = rvu_npc_update_rxvlan(rvu, pcifunc, nixlf); if (err) goto free_entry; return 0; free_entry: free_req.hdr.pcifunc = pcifunc; free_req.entry = alloc_rsp.entry_list[0]; rvu_mbox_handler_npc_mcam_free_entry(rvu, &free_req, rsp); pfvf->rxvlan = false; return err; } int rvu_mbox_handler_nix_set_rx_cfg(struct rvu *rvu, struct nix_rx_cfg *req, struct msg_rsp *rsp) { struct rvu_hwinfo *hw = rvu->hw; u16 pcifunc = req->hdr.pcifunc; struct rvu_block *block; struct rvu_pfvf *pfvf; int nixlf, blkaddr; u64 cfg; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; block = &hw->block[blkaddr]; nixlf = rvu_get_lf(rvu, block, pcifunc, 0); if (nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; cfg = rvu_read64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf)); /* Set the interface configuration */ if (req->len_verify & BIT(0)) cfg |= BIT_ULL(41); else cfg &= ~BIT_ULL(41); if (req->len_verify & BIT(1)) cfg |= BIT_ULL(40); else cfg &= ~BIT_ULL(40); if (req->csum_verify & BIT(0)) cfg |= BIT_ULL(37); else cfg &= ~BIT_ULL(37); rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), cfg); return 0; } static void nix_link_config(struct rvu *rvu, int blkaddr) { struct rvu_hwinfo *hw = rvu->hw; int cgx, lmac_cnt, slink, link; u64 tx_credits; /* Set default min/max packet lengths allowed on NIX Rx links. * * With HW reset minlen value of 60byte, HW will treat ARP pkts * as undersize and report them to SW as error pkts, hence * setting it to 40 bytes. */ for (link = 0; link < (hw->cgx_links + hw->lbk_links); link++) { rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), NIC_HW_MAX_FRS << 16 | NIC_HW_MIN_FRS); } if (hw->sdp_links) { link = hw->cgx_links + hw->lbk_links; rvu_write64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link), SDP_HW_MAX_FRS << 16 | NIC_HW_MIN_FRS); } /* Set credits for Tx links assuming max packet length allowed. * This will be reconfigured based on MTU set for PF/VF. */ for (cgx = 0; cgx < hw->cgx; cgx++) { lmac_cnt = cgx_get_lmac_cnt(rvu_cgx_pdata(cgx, rvu)); tx_credits = ((CGX_FIFO_LEN / lmac_cnt) - NIC_HW_MAX_FRS) / 16; /* Enable credits and set credit pkt count to max allowed */ tx_credits = (tx_credits << 12) | (0x1FF << 2) | BIT_ULL(1); slink = cgx * hw->lmac_per_cgx; for (link = slink; link < (slink + lmac_cnt); link++) { rvu_write64(rvu, blkaddr, NIX_AF_TX_LINKX_NORM_CREDIT(link), tx_credits); rvu_write64(rvu, blkaddr, NIX_AF_TX_LINKX_EXPR_CREDIT(link), tx_credits); } } /* Set Tx credits for LBK link */ slink = hw->cgx_links; for (link = slink; link < (slink + hw->lbk_links); link++) { tx_credits = 1000; /* 10 * max LBK datarate = 10 * 100Gbps */ /* Enable credits and set credit pkt count to max allowed */ tx_credits = (tx_credits << 12) | (0x1FF << 2) | BIT_ULL(1); rvu_write64(rvu, blkaddr, NIX_AF_TX_LINKX_NORM_CREDIT(link), tx_credits); rvu_write64(rvu, blkaddr, NIX_AF_TX_LINKX_EXPR_CREDIT(link), tx_credits); } } static int nix_calibrate_x2p(struct rvu *rvu, int blkaddr) { int idx, err; u64 status; /* Start X2P bus calibration */ rvu_write64(rvu, blkaddr, NIX_AF_CFG, rvu_read64(rvu, blkaddr, NIX_AF_CFG) | BIT_ULL(9)); /* Wait for calibration to complete */ err = rvu_poll_reg(rvu, blkaddr, NIX_AF_STATUS, BIT_ULL(10), false); if (err) { dev_err(rvu->dev, "NIX X2P bus calibration failed\n"); return err; } status = rvu_read64(rvu, blkaddr, NIX_AF_STATUS); /* Check if CGX devices are ready */ for (idx = 0; idx < rvu->cgx_cnt_max; idx++) { /* Skip when cgx port is not available */ if (!rvu_cgx_pdata(idx, rvu) || (status & (BIT_ULL(16 + idx)))) continue; dev_err(rvu->dev, "CGX%d didn't respond to NIX X2P calibration\n", idx); err = -EBUSY; } /* Check if LBK is ready */ if (!(status & BIT_ULL(19))) { dev_err(rvu->dev, "LBK didn't respond to NIX X2P calibration\n"); err = -EBUSY; } /* Clear 'calibrate_x2p' bit */ rvu_write64(rvu, blkaddr, NIX_AF_CFG, rvu_read64(rvu, blkaddr, NIX_AF_CFG) & ~BIT_ULL(9)); if (err || (status & 0x3FFULL)) dev_err(rvu->dev, "NIX X2P calibration failed, status 0x%llx\n", status); if (err) return err; return 0; } static int nix_aq_init(struct rvu *rvu, struct rvu_block *block) { u64 cfg; int err; /* Set admin queue endianness */ cfg = rvu_read64(rvu, block->addr, NIX_AF_CFG); #ifdef __BIG_ENDIAN cfg |= BIT_ULL(8); rvu_write64(rvu, block->addr, NIX_AF_CFG, cfg); #else cfg &= ~BIT_ULL(8); rvu_write64(rvu, block->addr, NIX_AF_CFG, cfg); #endif /* Do not bypass NDC cache */ cfg = rvu_read64(rvu, block->addr, NIX_AF_NDC_CFG); cfg &= ~0x3FFEULL; rvu_write64(rvu, block->addr, NIX_AF_NDC_CFG, cfg); /* Result structure can be followed by RQ/SQ/CQ context at * RES + 128bytes and a write mask at RES + 256 bytes, depending on * operation type. Alloc sufficient result memory for all operations. */ err = rvu_aq_alloc(rvu, &block->aq, Q_COUNT(AQ_SIZE), sizeof(struct nix_aq_inst_s), ALIGN(sizeof(struct nix_aq_res_s), 128) + 256); if (err) return err; rvu_write64(rvu, block->addr, NIX_AF_AQ_CFG, AQ_SIZE); rvu_write64(rvu, block->addr, NIX_AF_AQ_BASE, (u64)block->aq->inst->iova); return 0; } int rvu_nix_init(struct rvu *rvu) { struct rvu_hwinfo *hw = rvu->hw; struct rvu_block *block; int blkaddr, err; u64 cfg; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); if (blkaddr < 0) return 0; block = &hw->block[blkaddr]; /* As per a HW errata in 9xxx A0 silicon, NIX may corrupt * internal state when conditional clocks are turned off. * Hence enable them. */ if (is_rvu_9xxx_A0(rvu)) rvu_write64(rvu, blkaddr, NIX_AF_CFG, rvu_read64(rvu, blkaddr, NIX_AF_CFG) | 0x5EULL); /* Calibrate X2P bus to check if CGX/LBK links are fine */ err = nix_calibrate_x2p(rvu, blkaddr); if (err) return err; /* Set num of links of each type */ cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST); hw->cgx = (cfg >> 12) & 0xF; hw->lmac_per_cgx = (cfg >> 8) & 0xF; hw->cgx_links = hw->cgx * hw->lmac_per_cgx; hw->lbk_links = 1; hw->sdp_links = 1; /* Initialize admin queue */ err = nix_aq_init(rvu, block); if (err) return err; /* Restore CINT timer delay to HW reset values */ rvu_write64(rvu, blkaddr, NIX_AF_CINT_DELAY, 0x0ULL); if (blkaddr == BLKADDR_NIX0) { hw->nix0 = devm_kzalloc(rvu->dev, sizeof(struct nix_hw), GFP_KERNEL); if (!hw->nix0) return -ENOMEM; err = nix_setup_txschq(rvu, hw->nix0, blkaddr); if (err) return err; err = nix_af_mark_format_setup(rvu, hw->nix0, blkaddr); if (err) return err; err = nix_setup_mcast(rvu, hw->nix0, blkaddr); if (err) return err; /* Configure segmentation offload formats */ nix_setup_lso(rvu, hw->nix0, blkaddr); /* Config Outer/Inner L2, IP, TCP, UDP and SCTP NPC layer info. * This helps HW protocol checker to identify headers * and validate length and checksums. */ rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OL2, (NPC_LID_LA << 8) | (NPC_LT_LA_ETHER << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP4, (NPC_LID_LC << 8) | (NPC_LT_LC_IP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IIP4, (NPC_LID_LF << 8) | (NPC_LT_LF_TU_IP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OIP6, (NPC_LID_LC << 8) | (NPC_LT_LC_IP6 << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IIP6, (NPC_LID_LF << 8) | (NPC_LT_LF_TU_IP6 << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OTCP, (NPC_LID_LD << 8) | (NPC_LT_LD_TCP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_ITCP, (NPC_LID_LG << 8) | (NPC_LT_LG_TU_TCP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OUDP, (NPC_LID_LD << 8) | (NPC_LT_LD_UDP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_IUDP, (NPC_LID_LG << 8) | (NPC_LT_LG_TU_UDP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_OSCTP, (NPC_LID_LD << 8) | (NPC_LT_LD_SCTP << 4) | 0x0F); rvu_write64(rvu, blkaddr, NIX_AF_RX_DEF_ISCTP, (NPC_LID_LG << 8) | (NPC_LT_LG_TU_SCTP << 4) | 0x0F); err = nix_rx_flowkey_alg_cfg(rvu, blkaddr); if (err) return err; /* Initialize CGX/LBK/SDP link credits, min/max pkt lengths */ nix_link_config(rvu, blkaddr); } return 0; } void rvu_nix_freemem(struct rvu *rvu) { struct rvu_hwinfo *hw = rvu->hw; struct rvu_block *block; struct nix_txsch *txsch; struct nix_mcast *mcast; struct nix_hw *nix_hw; int blkaddr, lvl; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, 0); if (blkaddr < 0) return; block = &hw->block[blkaddr]; rvu_aq_free(rvu, block->aq); if (blkaddr == BLKADDR_NIX0) { nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return; for (lvl = 0; lvl < NIX_TXSCH_LVL_CNT; lvl++) { txsch = &nix_hw->txsch[lvl]; kfree(txsch->schq.bmap); } mcast = &nix_hw->mcast; qmem_free(rvu->dev, mcast->mce_ctx); qmem_free(rvu->dev, mcast->mcast_buf); mutex_destroy(&mcast->mce_lock); } } static int nix_get_nixlf(struct rvu *rvu, u16 pcifunc, int *nixlf) { struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); struct rvu_hwinfo *hw = rvu->hw; int blkaddr; blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; *nixlf = rvu_get_lf(rvu, &hw->block[blkaddr], pcifunc, 0); if (*nixlf < 0) return NIX_AF_ERR_AF_LF_INVALID; return 0; } int rvu_mbox_handler_nix_lf_start_rx(struct rvu *rvu, struct msg_req *req, struct msg_rsp *rsp) { u16 pcifunc = req->hdr.pcifunc; int nixlf, err; err = nix_get_nixlf(rvu, pcifunc, &nixlf); if (err) return err; rvu_npc_enable_default_entries(rvu, pcifunc, nixlf); return 0; } int rvu_mbox_handler_nix_lf_stop_rx(struct rvu *rvu, struct msg_req *req, struct msg_rsp *rsp) { u16 pcifunc = req->hdr.pcifunc; int nixlf, err; err = nix_get_nixlf(rvu, pcifunc, &nixlf); if (err) return err; rvu_npc_disable_default_entries(rvu, pcifunc, nixlf); return 0; } void rvu_nix_lf_teardown(struct rvu *rvu, u16 pcifunc, int blkaddr, int nixlf) { struct rvu_pfvf *pfvf = rvu_get_pfvf(rvu, pcifunc); struct hwctx_disable_req ctx_req; int err; ctx_req.hdr.pcifunc = pcifunc; /* Cleanup NPC MCAM entries, free Tx scheduler queues being used */ nix_interface_deinit(rvu, pcifunc, nixlf); nix_rx_sync(rvu, blkaddr); nix_txschq_free(rvu, pcifunc); if (pfvf->sq_ctx) { ctx_req.ctype = NIX_AQ_CTYPE_SQ; err = nix_lf_hwctx_disable(rvu, &ctx_req); if (err) dev_err(rvu->dev, "SQ ctx disable failed\n"); } if (pfvf->rq_ctx) { ctx_req.ctype = NIX_AQ_CTYPE_RQ; err = nix_lf_hwctx_disable(rvu, &ctx_req); if (err) dev_err(rvu->dev, "RQ ctx disable failed\n"); } if (pfvf->cq_ctx) { ctx_req.ctype = NIX_AQ_CTYPE_CQ; err = nix_lf_hwctx_disable(rvu, &ctx_req); if (err) dev_err(rvu->dev, "CQ ctx disable failed\n"); } nix_ctx_free(rvu, pfvf); } int rvu_mbox_handler_nix_lso_format_cfg(struct rvu *rvu, struct nix_lso_format_cfg *req, struct nix_lso_format_cfg_rsp *rsp) { u16 pcifunc = req->hdr.pcifunc; struct nix_hw *nix_hw; struct rvu_pfvf *pfvf; int blkaddr, idx, f; u64 reg; pfvf = rvu_get_pfvf(rvu, pcifunc); blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc); if (!pfvf->nixlf || blkaddr < 0) return NIX_AF_ERR_AF_LF_INVALID; nix_hw = get_nix_hw(rvu->hw, blkaddr); if (!nix_hw) return -EINVAL; /* Find existing matching LSO format, if any */ for (idx = 0; idx < nix_hw->lso.in_use; idx++) { for (f = 0; f < NIX_LSO_FIELD_MAX; f++) { reg = rvu_read64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(idx, f)); if (req->fields[f] != (reg & req->field_mask)) break; } if (f == NIX_LSO_FIELD_MAX) break; } if (idx < nix_hw->lso.in_use) { /* Match found */ rsp->lso_format_idx = idx; return 0; } if (nix_hw->lso.in_use == nix_hw->lso.total) return NIX_AF_ERR_LSO_CFG_FAIL; rsp->lso_format_idx = nix_hw->lso.in_use++; for (f = 0; f < NIX_LSO_FIELD_MAX; f++) rvu_write64(rvu, blkaddr, NIX_AF_LSO_FORMATX_FIELDX(rsp->lso_format_idx, f), req->fields[f]); return 0; }
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