diff options
author | David S. Miller | 2017-11-01 22:06:04 +0900 |
---|---|---|
committer | David S. Miller | 2017-11-01 22:06:04 +0900 |
commit | 4bfbe53f41f26de7877da4565e9a0a3a870c92f8 (patch) | |
tree | 34e7457bd0d02482779407d5088d9e2fce1fb9c2 | |
parent | 1f2c897cb1ceb97cd6060eac353754fe926cb3be (diff) | |
parent | 3eb8b62d5a260fcd9683b0ce89beb3b28b12a304 (diff) |
Merge branch 'cxgb4-add-hash-filter-support-to-tc-flower-offload'
Rahul Lakkireddy says:
====================
cxgb4: add hash-filter support to tc-flower offload
This series of patches add support to create hash-filters; a.k.a
exact-match filters, to tc-flower offload. T6 supports creating
~500K hash-filters in hw and can theoretically be expanded up to
~1 million.
Patch 1 fetches and saves the configured hw filter tuple field shifts
and filter mask.
Patch 2 initializes the driver to use hash-filter configuration.
Patch 3 adds support to create hash filters in hw.
Patch 4 adds support to delete hash filters in hw.
Patch 5 adds support to retrieve filter stats for hash filters.
Patch 6 converts the flower table to use rhashtable instead of
static hlist.
Patch 7 finally adds support to create hash filters via tc-flower
offload.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 32 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 928 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.h | 8 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 26 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 126 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h | 4 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c | 4 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 6 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 18 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 5 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 17 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h | 22 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 1 |
13 files changed, 1082 insertions, 115 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index a57761b28edc..0c83ceb5a1a6 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -287,10 +287,18 @@ struct tp_params { * places we store their offsets here, or a -1 if the field isn't * present. */ - int vlan_shift; - int vnic_shift; + int fcoe_shift; int port_shift; + int vnic_shift; + int vlan_shift; + int tos_shift; int protocol_shift; + int ethertype_shift; + int macmatch_shift; + int matchtype_shift; + int frag_shift; + + u64 hash_filter_mask; }; struct vpd_params { @@ -358,6 +366,7 @@ struct adapter_params { unsigned char crypto; /* HW capability for crypto */ unsigned char bypass; + unsigned char hash_filter; unsigned int ofldq_wr_cred; bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */ @@ -909,8 +918,10 @@ struct adapter { struct chcr_stats_debug chcr_stats; /* TC flower offload */ - DECLARE_HASHTABLE(flower_anymatch_tbl, 9); + struct rhashtable flower_tbl; + struct rhashtable_params flower_ht_params; struct timer_list flower_stats_timer; + struct work_struct flower_stats_work; /* Ethtool Dump */ struct ethtool_dump eth_dump; @@ -1041,6 +1052,7 @@ struct ch_filter_specification { * matching that doesn't exist as a (value, mask) tuple. */ uint32_t type:1; /* 0 => IPv4, 1 => IPv6 */ + u32 hash:1; /* 0 => wild-card, 1 => exact-match */ /* Packet dispatch information. Ingress packets which match the * filter rules will be dropped, passed to the host or switched back @@ -1098,7 +1110,14 @@ enum { }; enum { - NAT_MODE_ALL = 7, /* NAT on entire 4-tuple */ + NAT_MODE_NONE = 0, /* No NAT performed */ + NAT_MODE_DIP, /* NAT on Dst IP */ + NAT_MODE_DIP_DP, /* NAT on Dst IP, Dst Port */ + NAT_MODE_DIP_DP_SIP, /* NAT on Dst IP, Dst Port and Src IP */ + NAT_MODE_DIP_DP_SP, /* NAT on Dst IP, Dst Port and Src Port */ + NAT_MODE_SIP_SP, /* NAT on Src IP and Src Port */ + NAT_MODE_DIP_SIP_SP, /* NAT on Dst IP, Src IP and Src Port */ + NAT_MODE_ALL /* NAT on entire 4-tuple */ }; /* Host shadow copy of ingress filter entry. This is in host native format @@ -1132,6 +1151,11 @@ static inline int is_offload(const struct adapter *adap) return adap->params.offload; } +static inline int is_hashfilter(const struct adapter *adap) +{ + return adap->params.hash_filter; +} + static inline int is_pci_uld(const struct adapter *adap) { return adap->params.crypto; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c index 89272f29f807..abab67d52edb 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c @@ -31,10 +31,13 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ +#include <net/ipv6.h> #include "cxgb4.h" #include "t4_regs.h" #include "t4_tcb.h" +#include "t4_values.h" +#include "clip_tbl.h" #include "l2t.h" #include "smt.h" #include "t4fw_api.h" @@ -50,6 +53,194 @@ static inline bool unsupported(u32 conf, u32 conf_mask, u32 val, u32 mask) return !(conf & conf_mask) && is_field_set(val, mask); } +static int set_tcb_field(struct adapter *adap, struct filter_entry *f, + unsigned int ftid, u16 word, u64 mask, u64 val, + int no_reply) +{ + struct cpl_set_tcb_field *req; + struct sk_buff *skb; + + skb = alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_ATOMIC); + if (!skb) + return -ENOMEM; + + req = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*req)); + memset(req, 0, sizeof(*req)); + INIT_TP_WR_CPL(req, CPL_SET_TCB_FIELD, ftid); + req->reply_ctrl = htons(REPLY_CHAN_V(0) | + QUEUENO_V(adap->sge.fw_evtq.abs_id) | + NO_REPLY_V(no_reply)); + req->word_cookie = htons(TCB_WORD_V(word) | TCB_COOKIE_V(ftid)); + req->mask = cpu_to_be64(mask); + req->val = cpu_to_be64(val); + set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3); + t4_ofld_send(adap, skb); + return 0; +} + +/* Set one of the t_flags bits in the TCB. + */ +static int set_tcb_tflag(struct adapter *adap, struct filter_entry *f, + unsigned int ftid, unsigned int bit_pos, + unsigned int val, int no_reply) +{ + return set_tcb_field(adap, f, ftid, TCB_T_FLAGS_W, 1ULL << bit_pos, + (unsigned long long)val << bit_pos, no_reply); +} + +static void mk_abort_req_ulp(struct cpl_abort_req *abort_req, unsigned int tid) +{ + struct ulp_txpkt *txpkt = (struct ulp_txpkt *)abort_req; + struct ulptx_idata *sc = (struct ulptx_idata *)(txpkt + 1); + + txpkt->cmd_dest = htonl(ULPTX_CMD_V(ULP_TX_PKT) | ULP_TXPKT_DEST_V(0)); + txpkt->len = htonl(DIV_ROUND_UP(sizeof(*abort_req), 16)); + sc->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM)); + sc->len = htonl(sizeof(*abort_req) - sizeof(struct work_request_hdr)); + OPCODE_TID(abort_req) = htonl(MK_OPCODE_TID(CPL_ABORT_REQ, tid)); + abort_req->rsvd0 = htonl(0); + abort_req->rsvd1 = 0; + abort_req->cmd = CPL_ABORT_NO_RST; +} + +static void mk_abort_rpl_ulp(struct cpl_abort_rpl *abort_rpl, unsigned int tid) +{ + struct ulp_txpkt *txpkt = (struct ulp_txpkt *)abort_rpl; + struct ulptx_idata *sc = (struct ulptx_idata *)(txpkt + 1); + + txpkt->cmd_dest = htonl(ULPTX_CMD_V(ULP_TX_PKT) | ULP_TXPKT_DEST_V(0)); + txpkt->len = htonl(DIV_ROUND_UP(sizeof(*abort_rpl), 16)); + sc->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM)); + sc->len = htonl(sizeof(*abort_rpl) - sizeof(struct work_request_hdr)); + OPCODE_TID(abort_rpl) = htonl(MK_OPCODE_TID(CPL_ABORT_RPL, tid)); + abort_rpl->rsvd0 = htonl(0); + abort_rpl->rsvd1 = 0; + abort_rpl->cmd = CPL_ABORT_NO_RST; +} + +static void mk_set_tcb_ulp(struct filter_entry *f, + struct cpl_set_tcb_field *req, + unsigned int word, u64 mask, u64 val, + u8 cookie, int no_reply) +{ + struct ulp_txpkt *txpkt = (struct ulp_txpkt *)req; + struct ulptx_idata *sc = (struct ulptx_idata *)(txpkt + 1); + + txpkt->cmd_dest = htonl(ULPTX_CMD_V(ULP_TX_PKT) | ULP_TXPKT_DEST_V(0)); + txpkt->len = htonl(DIV_ROUND_UP(sizeof(*req), 16)); + sc->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_IMM)); + sc->len = htonl(sizeof(*req) - sizeof(struct work_request_hdr)); + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, f->tid)); + req->reply_ctrl = htons(NO_REPLY_V(no_reply) | REPLY_CHAN_V(0) | + QUEUENO_V(0)); + req->word_cookie = htons(TCB_WORD_V(word) | TCB_COOKIE_V(cookie)); + req->mask = cpu_to_be64(mask); + req->val = cpu_to_be64(val); + sc = (struct ulptx_idata *)(req + 1); + sc->cmd_more = htonl(ULPTX_CMD_V(ULP_TX_SC_NOOP)); + sc->len = htonl(0); +} + +static int configure_filter_smac(struct adapter *adap, struct filter_entry *f) +{ + int err; + + /* do a set-tcb for smac-sel and CWR bit.. */ + err = set_tcb_tflag(adap, f, f->tid, TF_CCTRL_CWR_S, 1, 1); + if (err) + goto smac_err; + + err = set_tcb_field(adap, f, f->tid, TCB_SMAC_SEL_W, + TCB_SMAC_SEL_V(TCB_SMAC_SEL_M), + TCB_SMAC_SEL_V(f->smt->idx), 1); + if (!err) + return 0; + +smac_err: + dev_err(adap->pdev_dev, "filter %u smac config failed with error %u\n", + f->tid, err); + return err; +} + +static void set_nat_params(struct adapter *adap, struct filter_entry *f, + unsigned int tid, bool dip, bool sip, bool dp, + bool sp) +{ + if (dip) { + if (f->fs.type) { + set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W, + WORD_MASK, f->fs.nat_lip[15] | + f->fs.nat_lip[14] << 8 | + f->fs.nat_lip[13] << 16 | + f->fs.nat_lip[12] << 24, 1); + + set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W + 1, + WORD_MASK, f->fs.nat_lip[11] | + f->fs.nat_lip[10] << 8 | + f->fs.nat_lip[9] << 16 | + f->fs.nat_lip[8] << 24, 1); + + set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W + 2, + WORD_MASK, f->fs.nat_lip[7] | + f->fs.nat_lip[6] << 8 | + f->fs.nat_lip[5] << 16 | + f->fs.nat_lip[4] << 24, 1); + + set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W + 3, + WORD_MASK, f->fs.nat_lip[3] | + f->fs.nat_lip[2] << 8 | + f->fs.nat_lip[1] << 16 | + f->fs.nat_lip[0] << 24, 1); + } else { + set_tcb_field(adap, f, tid, TCB_RX_FRAG3_LEN_RAW_W, + WORD_MASK, f->fs.nat_lip[3] | + f->fs.nat_lip[2] << 8 | + f->fs.nat_lip[1] << 16 | + f->fs.nat_lip[0] << 24, 1); + } + } + + if (sip) { + if (f->fs.type) { + set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W, + WORD_MASK, f->fs.nat_fip[15] | + f->fs.nat_fip[14] << 8 | + f->fs.nat_fip[13] << 16 | + f->fs.nat_fip[12] << 24, 1); + + set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W + 1, + WORD_MASK, f->fs.nat_fip[11] | + f->fs.nat_fip[10] << 8 | + f->fs.nat_fip[9] << 16 | + f->fs.nat_fip[8] << 24, 1); + + set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W + 2, + WORD_MASK, f->fs.nat_fip[7] | + f->fs.nat_fip[6] << 8 | + f->fs.nat_fip[5] << 16 | + f->fs.nat_fip[4] << 24, 1); + + set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W + 3, + WORD_MASK, f->fs.nat_fip[3] | + f->fs.nat_fip[2] << 8 | + f->fs.nat_fip[1] << 16 | + f->fs.nat_fip[0] << 24, 1); + + } else { + set_tcb_field(adap, f, tid, + TCB_RX_FRAG3_START_IDX_OFFSET_RAW_W, + WORD_MASK, f->fs.nat_fip[3] | + f->fs.nat_fip[2] << 8 | + f->fs.nat_fip[1] << 16 | + f->fs.nat_fip[0] << 24, 1); + } + } + + set_tcb_field(adap, f, tid, TCB_PDU_HDR_LEN_W, WORD_MASK, + (dp ? f->fs.nat_lport : 0) | + (sp ? f->fs.nat_fport << 16 : 0), 1); +} + /* Validate filter spec against configuration done on the card. */ static int validate_filter(struct net_device *dev, struct ch_filter_specification *fs) @@ -151,7 +342,7 @@ static int get_filter_steerq(struct net_device *dev, } static int get_filter_count(struct adapter *adapter, unsigned int fidx, - u64 *pkts, u64 *bytes) + u64 *pkts, u64 *bytes, bool hash) { unsigned int tcb_base, tcbaddr; unsigned int word_offset; @@ -160,14 +351,24 @@ static int get_filter_count(struct adapter *adapter, unsigned int fidx, int ret; tcb_base = t4_read_reg(adapter, TP_CMM_TCB_BASE_A); - if ((fidx != (adapter->tids.nftids + adapter->tids.nsftids - 1)) && - fidx >= adapter->tids.nftids) - return -E2BIG; - - f = &adapter->tids.ftid_tab[fidx]; - if (!f->valid) - return -EINVAL; + if (is_hashfilter(adapter) && hash) { + if (fidx < adapter->tids.ntids) { + f = adapter->tids.tid_tab[fidx]; + if (!f) + return -EINVAL; + } else { + return -E2BIG; + } + } else { + if ((fidx != (adapter->tids.nftids + + adapter->tids.nsftids - 1)) && + fidx >= adapter->tids.nftids) + return -E2BIG; + f = &adapter->tids.ftid_tab[fidx]; + if (!f->valid) + return -EINVAL; + } tcbaddr = tcb_base + f->tid * TCB_SIZE; spin_lock(&adapter->win0_lock); @@ -219,11 +420,11 @@ out: } int cxgb4_get_filter_counters(struct net_device *dev, unsigned int fidx, - u64 *hitcnt, u64 *bytecnt) + u64 *hitcnt, u64 *bytecnt, bool hash) { struct adapter *adapter = netdev2adap(dev); - return get_filter_count(adapter, fidx, hitcnt, bytecnt); + return get_filter_count(adapter, fidx, hitcnt, bytecnt, hash); } int cxgb4_get_free_ftid(struct net_device *dev, int family) @@ -484,10 +685,8 @@ int delete_filter(struct adapter *adapter, unsigned int fidx) void clear_filter(struct adapter *adap, struct filter_entry *f) { /* If the new or old filter have loopback rewriteing rules then we'll - * need to free any existing Layer Two Table (L2T) entries of the old - * filter rule. The firmware will handle freeing up any Source MAC - * Table (SMT) entries used for rewriting Source MAC Addresses in - * loopback rules. + * need to free any existing L2T, SMT, CLIP entries of filter + * rule. */ if (f->l2t) cxgb4_l2t_release(f->l2t); @@ -495,6 +694,9 @@ void clear_filter(struct adapter *adap, struct filter_entry *f) if (f->smt) cxgb4_smt_release(f->smt); + if (f->fs.hash && f->fs.type) + cxgb4_clip_release(f->dev, (const u32 *)&f->fs.val.lip, 1); + /* The zeroing of the filter rule below clears the filter valid, * pending, locked flags, l2t pointer, etc. so it's all we need for * this operation. @@ -564,6 +766,416 @@ static void fill_default_mask(struct ch_filter_specification *fs) fs->mask.fport = ~0; } +static bool is_addr_all_mask(u8 *ipmask, int family) +{ + if (family == AF_INET) { + struct in_addr *addr; + + addr = (struct in_addr *)ipmask; + if (addr->s_addr == 0xffffffff) + return true; + } else if (family == AF_INET6) { + struct in6_addr *addr6; + + addr6 = (struct in6_addr *)ipmask; + if (addr6->s6_addr32[0] == 0xffffffff && + addr6->s6_addr32[1] == 0xffffffff && + addr6->s6_addr32[2] == 0xffffffff && + addr6->s6_addr32[3] == 0xffffffff) + return true; + } + return false; +} + +static bool is_inaddr_any(u8 *ip, int family) +{ + int addr_type; + + if (family == AF_INET) { + struct in_addr *addr; + + addr = (struct in_addr *)ip; + if (addr->s_addr == htonl(INADDR_ANY)) + return true; + } else if (family == AF_INET6) { + struct in6_addr *addr6; + + addr6 = (struct in6_addr *)ip; + addr_type = ipv6_addr_type((const struct in6_addr *) + &addr6); + if (addr_type == IPV6_ADDR_ANY) + return true; + } + return false; +} + +bool is_filter_exact_match(struct adapter *adap, + struct ch_filter_specification *fs) +{ + struct tp_params *tp = &adap->params.tp; + u64 hash_filter_mask = tp->hash_filter_mask; + u32 mask; + + if (!is_hashfilter(adap)) + return false; + + if (fs->type) { + if (is_inaddr_any(fs->val.fip, AF_INET6) || + !is_addr_all_mask(fs->mask.fip, AF_INET6)) + return false; + + if (is_inaddr_any(fs->val.lip, AF_INET6) || + !is_addr_all_mask(fs->mask.lip, AF_INET6)) + return false; + } else { + if (is_inaddr_any(fs->val.fip, AF_INET) || + !is_addr_all_mask(fs->mask.fip, AF_INET)) + return false; + + if (is_inaddr_any(fs->val.lip, AF_INET) || + !is_addr_all_mask(fs->mask.lip, AF_INET)) + return false; + } + + if (!fs->val.lport || fs->mask.lport != 0xffff) + return false; + + if (!fs->val.fport || fs->mask.fport != 0xffff) + return false; + + if (tp->fcoe_shift >= 0) { + mask = (hash_filter_mask >> tp->fcoe_shift) & FT_FCOE_W; + if (mask && !fs->mask.fcoe) + return false; + } + + if (tp->port_shift >= 0) { + mask = (hash_filter_mask >> tp->port_shift) & FT_PORT_W; + if (mask && !fs->mask.iport) + return false; + } + + if (tp->vnic_shift >= 0) { + mask = (hash_filter_mask >> tp->vnic_shift) & FT_VNIC_ID_W; + + if ((adap->params.tp.ingress_config & VNIC_F)) { + if (mask && !fs->mask.pfvf_vld) + return false; + } else { + if (mask && !fs->mask.ovlan_vld) + return false; + } + } + + if (tp->vlan_shift >= 0) { + mask = (hash_filter_mask >> tp->vlan_shift) & FT_VLAN_W; + if (mask && !fs->mask.ivlan) + return false; + } + + if (tp->tos_shift >= 0) { + mask = (hash_filter_mask >> tp->tos_shift) & FT_TOS_W; + if (mask && !fs->mask.tos) + return false; + } + + if (tp->protocol_shift >= 0) { + mask = (hash_filter_mask >> tp->protocol_shift) & FT_PROTOCOL_W; + if (mask && !fs->mask.proto) + return false; + } + + if (tp->ethertype_shift >= 0) { + mask = (hash_filter_mask >> tp->ethertype_shift) & + FT_ETHERTYPE_W; + if (mask && !fs->mask.ethtype) + return false; + } + + if (tp->macmatch_shift >= 0) { + mask = (hash_filter_mask >> tp->macmatch_shift) & FT_MACMATCH_W; + if (mask && !fs->mask.macidx) + return false; + } + + if (tp->matchtype_shift >= 0) { + mask = (hash_filter_mask >> tp->matchtype_shift) & + FT_MPSHITTYPE_W; + if (mask && !fs->mask.matchtype) + return false; + } + if (tp->frag_shift >= 0) { + mask = (hash_filter_mask >> tp->frag_shift) & + FT_FRAGMENTATION_W; + if (mask && !fs->mask.frag) + return false; + } + return true; +} + +static u64 hash_filter_ntuple(struct ch_filter_specification *fs, + struct net_device *dev) +{ + struct adapter *adap = netdev2adap(dev); + struct tp_params *tp = &adap->params.tp; + u64 ntuple = 0; + + /* Initialize each of the fields which we care about which are present + * in the Compressed Filter Tuple. + */ + if (tp->vlan_shift >= 0 && fs->mask.ivlan) + ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift; + + if (tp->port_shift >= 0 && fs->mask.iport) + ntuple |= (u64)fs->val.iport << tp->port_shift; + + if (tp->protocol_shift >= 0) { + if (!fs->val.proto) + ntuple |= (u64)IPPROTO_TCP << tp->protocol_shift; + else + ntuple |= (u64)fs->val.proto << tp->protocol_shift; + } + + if (tp->tos_shift >= 0 && fs->mask.tos) + ntuple |= (u64)(fs->val.tos) << tp->tos_shift; + + if (tp->vnic_shift >= 0) { + if ((adap->params.tp.ingress_config & VNIC_F) && + fs->mask.pfvf_vld) + ntuple |= (u64)((fs->val.pfvf_vld << 16) | + (fs->val.pf << 13) | + (fs->val.vf)) << tp->vnic_shift; + else + ntuple |= (u64)((fs->val.ovlan_vld << 16) | + (fs->val.ovlan)) << tp->vnic_shift; + } + + if (tp->macmatch_shift >= 0 && fs->mask.macidx) + ntuple |= (u64)(fs->val.macidx) << tp->macmatch_shift; + + if (tp->ethertype_shift >= 0 && fs->mask.ethtype) + ntuple |= (u64)(fs->val.ethtype) << tp->ethertype_shift; + + if (tp->matchtype_shift >= 0 && fs->mask.matchtype) + ntuple |= (u64)(fs->val.matchtype) << tp->matchtype_shift; + + if (tp->frag_shift >= 0 && fs->mask.frag) + ntuple |= (u64)(fs->val.frag) << tp->frag_shift; + + if (tp->fcoe_shift >= 0 && fs->mask.fcoe) + ntuple |= (u64)(fs->val.fcoe) << tp->fcoe_shift; + return ntuple; +} + +static void mk_act_open_req6(struct filter_entry *f, struct sk_buff *skb, + unsigned int qid_filterid, struct adapter *adap) +{ + struct cpl_t6_act_open_req6 *t6req = NULL; + struct cpl_act_open_req6 *req = NULL; + + t6req = (struct cpl_t6_act_open_req6 *)__skb_put(skb, sizeof(*t6req)); + INIT_TP_WR(t6req, 0); + req = (struct cpl_act_open_req6 *)t6req; + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, qid_filterid)); + req->local_port = cpu_to_be16(f->fs.val.lport); + req->peer_port = cpu_to_be16(f->fs.val.fport); + req->local_ip_hi = *(__be64 *)(&f->fs.val.lip); + req->local_ip_lo = *(((__be64 *)&f->fs.val.lip) + 1); + req->peer_ip_hi = *(__be64 *)(&f->fs.val.fip); + req->peer_ip_lo = *(((__be64 *)&f->fs.val.fip) + 1); + req->opt0 = cpu_to_be64(NAGLE_V(f->fs.newvlan == VLAN_REMOVE || + f->fs.newvlan == VLAN_REWRITE) | + DELACK_V(f->fs.hitcnts) | + L2T_IDX_V(f->l2t ? f->l2t->idx : 0) | + SMAC_SEL_V((cxgb4_port_viid(f->dev) & + 0x7F) << 1) | + TX_CHAN_V(f->fs.eport) | + NO_CONG_V(f->fs.rpttid) | + ULP_MODE_V(f->fs.nat_mode ? + ULP_MODE_TCPDDP : ULP_MODE_NONE) | + TCAM_BYPASS_F | NON_OFFLOAD_F); + t6req->params = cpu_to_be64(FILTER_TUPLE_V(hash_filter_ntuple(&f->fs, + f->dev))); + t6req->opt2 = htonl(RSS_QUEUE_VALID_F | + RSS_QUEUE_V(f->fs.iq) | + TX_QUEUE_V(f->fs.nat_mode) | + T5_OPT_2_VALID_F | + RX_CHANNEL_F | + CONG_CNTRL_V((f->fs.action == FILTER_DROP) | + (f->fs.dirsteer << 1)) | + PACE_V((f->fs.maskhash) | + ((f->fs.dirsteerhash) << 1)) | + CCTRL_ECN_V(f->fs.action == FILTER_SWITCH)); +} + +static void mk_act_open_req(struct filter_entry *f, struct sk_buff *skb, + unsigned int qid_filterid, struct adapter *adap) +{ + struct cpl_t6_act_open_req *t6req = NULL; + struct cpl_act_open_req *req = NULL; + + t6req = (struct cpl_t6_act_open_req *)__skb_put(skb, sizeof(*t6req)); + INIT_TP_WR(t6req, 0); + req = (struct cpl_act_open_req *)t6req; + OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, qid_filterid)); + req->local_port = cpu_to_be16(f->fs.val.lport); + req->peer_port = cpu_to_be16(f->fs.val.fport); + req->local_ip = f->fs.val.lip[0] | f->fs.val.lip[1] << 8 | + f->fs.val.lip[2] << 16 | f->fs.val.lip[3] << 24; + req->peer_ip = f->fs.val.fip[0] | f->fs.val.fip[1] << 8 | + f->fs.val.fip[2] << 16 | f->fs.val.fip[3] << 24; + req->opt0 = cpu_to_be64(NAGLE_V(f->fs.newvlan == VLAN_REMOVE || + f->fs.newvlan == VLAN_REWRITE) | + DELACK_V(f->fs.hitcnts) | + L2T_IDX_V(f->l2t ? f->l2t->idx : 0) | + SMAC_SEL_V((cxgb4_port_viid(f->dev) & + 0x7F) << 1) | + TX_CHAN_V(f->fs.eport) | + NO_CONG_V(f->fs.rpttid) | + ULP_MODE_V(f->fs.nat_mode ? + ULP_MODE_TCPDDP : ULP_MODE_NONE) | + TCAM_BYPASS_F | NON_OFFLOAD_F); + + t6req->params = cpu_to_be64(FILTER_TUPLE_V(hash_filter_ntuple(&f->fs, + f->dev))); + t6req->opt2 = htonl(RSS_QUEUE_VALID_F | + RSS_QUEUE_V(f->fs.iq) | + TX_QUEUE_V(f->fs.nat_mode) | + T5_OPT_2_VALID_F | + RX_CHANNEL_F | + CONG_CNTRL_V((f->fs.action == FILTER_DROP) | + (f->fs.dirsteer << 1)) | + PACE_V((f->fs.maskhash) | + ((f->fs.dirsteerhash) << 1)) | + CCTRL_ECN_V(f->fs.action == FILTER_SWITCH)); +} + +static int cxgb4_set_hash_filter(struct net_device *dev, + struct ch_filter_specification *fs, + struct filter_ctx *ctx) +{ + struct adapter *adapter = netdev2adap(dev); + struct tid_info *t = &adapter->tids; + struct filter_entry *f; + struct sk_buff *skb; + int iq, atid, size; + int ret = 0; + u32 iconf; + + fill_default_mask(fs); + ret = validate_filter(dev, fs); + if (ret) + return ret; + + iq = get_filter_steerq(dev, fs); + if (iq < 0) + return iq; + + f = kzalloc(sizeof(*f), GFP_KERNEL); + if (!f) + return -ENOMEM; + + f->fs = *fs; + f->ctx = ctx; + f->dev = dev; + f->fs.iq = iq; + + /* If the new filter requires loopback Destination MAC and/or VLAN + * rewriting then we need to allocate a Layer 2 Table (L2T) entry for + * the filter. + */ + if (f->fs.newdmac || f->fs.newvlan) { + /* allocate L2T entry for new filter */ + f->l2t = t4_l2t_alloc_switching(adapter, f->fs.vlan, + f->fs.eport, f->fs.dmac); + if (!f->l2t) { + ret = -ENOMEM; + goto out_err; + } + } + + /* If the new filter requires loopback Source MAC rewriting then + * we need to allocate a SMT entry for the filter. + */ + if (f->fs.newsmac) { + f->smt = cxgb4_smt_alloc_switching(f->dev, f->fs.smac); + if (!f->smt) { + if (f->l2t) { + cxgb4_l2t_release(f->l2t); + f->l2t = NULL; + } + ret = -ENOMEM; + goto free_l2t; + } + } + + atid = cxgb4_alloc_atid(t, f); + if (atid < 0) + goto free_smt; + + iconf = adapter->params.tp.ingress_config; + if (iconf & VNIC_F) { + f->fs.val.ovlan = (fs->val.pf << 13) | fs->val.vf; + f->fs.mask.ovlan = (fs->mask.pf << 13) | fs->mask.vf; + f->fs.val.ovlan_vld = fs->val.pfvf_vld; + f->fs.mask.ovlan_vld = fs->mask.pfvf_vld; + } + + size = sizeof(struct cpl_t6_act_open_req); + if (f->fs.type) { + ret = cxgb4_clip_get(f->dev, (const u32 *)&f->fs.val.lip, 1); + if (ret) + goto free_atid; + + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) { + ret = -ENOMEM; + goto free_clip; + } + + mk_act_open_req6(f, skb, + ((adapter->sge.fw_evtq.abs_id << 14) | atid), + adapter); + } else { + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) { + ret = -ENOMEM; + goto free_atid; + } + + mk_act_open_req(f, skb, + ((adapter->sge.fw_evtq.abs_id << 14) | atid), + adapter); + } + + f->pending = 1; + set_wr_txq(skb, CPL_PRIORITY_SETUP, f->fs.val.iport & 0x3); + t4_ofld_send(adapter, skb); + return 0; + +free_clip: + cxgb4_clip_release(f->dev, (const u32 *)&f->fs.val.lip, 1); + +free_atid: + cxgb4_free_atid(t, atid); + +free_smt: + if (f->smt) { + cxgb4_smt_release(f->smt); + f->smt = NULL; + } + +free_l2t: + if (f->l2t) { + cxgb4_l2t_release(f->l2t); + f->l2t = NULL; + } + +out_err: + kfree(f); + return ret; +} + /* Check a Chelsio Filter Request for validity, convert it into our internal * format and send it to the hardware. Return 0 on success, an error number * otherwise. We attach any provided filter operation context to the internal @@ -580,6 +1192,14 @@ int __cxgb4_set_filter(struct net_device *dev, int filter_id, u32 iconf; int iq, ret; + if (fs->hash) { + if (is_hashfilter(adapter)) + return cxgb4_set_hash_filter(dev, fs, ctx); + netdev_err(dev, "%s: Exact-match filters only supported with Hash Filter configuration\n", + __func__); + return -EINVAL; + } + max_fidx = adapter->tids.nftids; if (filter_id != (max_fidx + adapter->tids.nsftids - 1) && filter_id >= max_fidx) @@ -701,12 +1321,74 @@ int __cxgb4_set_filter(struct net_device *dev, int filter_id, return ret; } +static int cxgb4_del_hash_filter(struct net_device *dev, int filter_id, + struct filter_ctx *ctx) +{ + struct adapter *adapter = netdev2adap(dev); + struct tid_info *t = &adapter->tids; + struct cpl_abort_req *abort_req; + struct cpl_abort_rpl *abort_rpl; + struct cpl_set_tcb_field *req; + struct ulptx_idata *aligner; + struct work_request_hdr *wr; + struct filter_entry *f; + struct sk_buff *skb; + unsigned int wrlen; + int ret; + + netdev_dbg(dev, "%s: filter_id = %d ; nftids = %d\n", + __func__, filter_id, adapter->tids.nftids); + + if (filter_id > adapter->tids.ntids) + return -E2BIG; + + f = lookup_tid(t, filter_id); + if (!f) { + netdev_err(dev, "%s: no filter entry for filter_id = %d", + __func__, filter_id); + return -EINVAL; + } + + ret = writable_filter(f); + if (ret) + return ret; + + if (!f->valid) + return -EINVAL; + + f->ctx = ctx; + f->pending = 1; + wrlen = roundup(sizeof(*wr) + (sizeof(*req) + sizeof(*aligner)) + + sizeof(*abort_req) + sizeof(*abort_rpl), 16); + skb = alloc_skb(wrlen, GFP_KERNEL); + if (!skb) { + netdev_err(dev, "%s: could not allocate skb ..\n", __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3); + req = (struct cpl_set_tcb_field *)__skb_put(skb, wrlen); + INIT_ULPTX_WR(req, wrlen, 0, 0); + wr = (struct work_request_hdr *)req; + wr++; + req = (struct cpl_set_tcb_field *)wr; + mk_set_tcb_ulp(f, req, TCB_RSS_INFO_W, TCB_RSS_INFO_V(TCB_RSS_INFO_M), + TCB_RSS_INFO_V(adapter->sge.fw_evtq.abs_id), 0, 1); + aligner = (struct ulptx_idata *)(req + 1); + abort_req = (struct cpl_abort_req *)(aligner + 1); + mk_abort_req_ulp(abort_req, f->tid); + abort_rpl = (struct cpl_abort_rpl *)(abort_req + 1); + mk_abort_rpl_ulp(abort_rpl, f->tid); + t4_ofld_send(adapter, skb); + return 0; +} + /* Check a delete filter request for validity and send it to the hardware. * Return 0 on success, an error number otherwise. We attach any provided * filter operation context to the internal filter specification in order to * facilitate signaling completion of the operation. */ int __cxgb4_del_filter(struct net_device *dev, int filter_id, + struct ch_filter_specification *fs, struct filter_ctx *ctx) { struct adapter *adapter = netdev2adap(dev); @@ -714,6 +1396,14 @@ int __cxgb4_del_filter(struct net_device *dev, int filter_id, unsigned int max_fidx; int ret; + if (fs && fs->hash) { + if (is_hashfilter(adapter)) + return cxgb4_del_hash_filter(dev, filter_id, ctx); + netdev_err(dev, "%s: Exact-match filters only supported with Hash Filter configuration\n", + __func__); + return -EINVAL; + } + max_fidx = adapter->tids.nftids; if (filter_id != (max_fidx + adapter->tids.nsftids - 1) && filter_id >= max_fidx) @@ -764,18 +1454,19 @@ out: return ret; } -int cxgb4_del_filter(struct net_device *dev, int filter_id) +int cxgb4_del_filter(struct net_device *dev, int filter_id, + struct ch_filter_specification *fs) { struct filter_ctx ctx; int ret; /* If we are shutting down the adapter do not wait for completion */ if (netdev2adap(dev)->flags & SHUTTING_DOWN) - return __cxgb4_del_filter(dev, filter_id, NULL); + return __cxgb4_del_filter(dev, filter_id, fs, NULL); init_completion(&ctx.completion); - ret = __cxgb4_del_filter(dev, filter_id, &ctx); + ret = __cxgb4_del_filter(dev, filter_id, fs, &ctx); if (ret) goto out; @@ -789,60 +1480,155 @@ out: return ret; } -static int set_tcb_field(struct adapter *adap, struct filter_entry *f, - unsigned int ftid, u16 word, u64 mask, u64 val, - int no_reply) +static int configure_filter_tcb(struct adapter *adap, unsigned int tid, + struct filter_entry *f) { - struct cpl_set_tcb_field *req; - struct sk_buff *skb; - - skb = alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_ATOMIC); - if (!skb) - return -ENOMEM; - - req = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*req)); - memset(req, 0, sizeof(*req)); - INIT_TP_WR_CPL(req, CPL_SET_TCB_FIELD, ftid); - req->reply_ctrl = htons(REPLY_CHAN_V(0) | - QUEUENO_V(adap->sge.fw_evtq.abs_id) | - NO_REPLY_V(no_reply)); - req->word_cookie = htons(TCB_WORD_V(word) | TCB_COOKIE_V(ftid)); - req->mask = cpu_to_be64(mask); - req->val = cpu_to_be64(val); - set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3); - t4_ofld_send(adap, skb); + if (f->fs.hitcnts) + set_tcb_field(adap, f, tid, TCB_TIMESTAMP_W, + TCB_TIMESTAMP_V(TCB_TIMESTAMP_M) | + TCB_RTT_TS_RECENT_AGE_V(TCB_RTT_TS_RECENT_AGE_M), + TCB_TIMESTAMP_V(0ULL) | + TCB_RTT_TS_RECENT_AGE_V(0ULL), + 1); + + if (f->fs.newdmac) + set_tcb_tflag(adap, f, tid, TF_CCTRL_ECE_S, 1, + 1); + + if (f->fs.newvlan == VLAN_INSERT || + f->fs.newvlan == VLAN_REWRITE) + set_tcb_tflag(adap, f, tid, TF_CCTRL_RFR_S, 1, + 1); + if (f->fs.newsmac) + configure_filter_smac(adap, f); + + if (f->fs.nat_mode) { + switch (f->fs.nat_mode) { + case NAT_MODE_DIP: + set_nat_params(adap, f, tid, true, false, false, false); + break; + + case NAT_MODE_DIP_DP: + set_nat_params(adap, f, tid, true, false, true, false); + break; + + case NAT_MODE_DIP_DP_SIP: + set_nat_params(adap, f, tid, true, true, true, false); + break; + case NAT_MODE_DIP_DP_SP: + set_nat_params(adap, f, tid, true, false, true, true); + break; + + case NAT_MODE_SIP_SP: + set_nat_params(adap, f, tid, false, true, false, true); + break; + + case NAT_MODE_DIP_SIP_SP: + set_nat_params(adap, f, tid, true, true, false, true); + break; + + case NAT_MODE_ALL: + set_nat_params(adap, f, tid, true, true, true, true); + break; + + default: + pr_err("%s: Invalid NAT mode: %d\n", + __func__, f->fs.nat_mode); + return -EINVAL; + } + } return 0; } -/* Set one of the t_flags bits in the TCB. - */ -static int set_tcb_tflag(struct adapter *adap, struct filter_entry *f, - unsigned int ftid, unsigned int bit_pos, - unsigned int val, int no_reply) +void hash_del_filter_rpl(struct adapter *adap, + const struct cpl_abort_rpl_rss *rpl) { - return set_tcb_field(adap, f, ftid, TCB_T_FLAGS_W, 1ULL << bit_pos, - (unsigned long long)val << bit_pos, no_reply); + unsigned int status = rpl->status; + struct tid_info *t = &adap->tids; + unsigned int tid = GET_TID(rpl); + struct filter_ctx *ctx = NULL; + struct filter_entry *f; + + dev_dbg(adap->pdev_dev, "%s: status = %u; tid = %u\n", + __func__, status, tid); + + f = lookup_tid(t, tid); + if (!f) { + dev_err(adap->pdev_dev, "%s:could not find filter entry", + __func__); + return; + } + ctx = f->ctx; + f->ctx = NULL; + clear_filter(adap, f); + cxgb4_remove_tid(t, 0, tid, 0); + kfree(f); + if (ctx) { + ctx->result = 0; + complete(&ctx->completion); + } } -static int configure_filter_smac(struct adapter *adap, struct filter_entry *f) +void hash_filter_rpl(struct adapter *adap, const struct cpl_act_open_rpl *rpl) { - int err; + unsigned int ftid = TID_TID_G(AOPEN_ATID_G(ntohl(rpl->atid_status))); + unsigned int status = AOPEN_STATUS_G(ntohl(rpl->atid_status)); + struct tid_info *t = &adap->tids; + unsigned int tid = GET_TID(rpl); + struct filter_ctx *ctx = NULL; + struct filter_entry *f; - /* do a set-tcb for smac-sel and CWR bit.. */ - err = set_tcb_tflag(adap, f, f->tid, TF_CCTRL_CWR_S, 1, 1); - if (err) - goto smac_err; + dev_dbg(adap->pdev_dev, "%s: tid = %u; atid = %u; status = %u\n", + __func__, tid, ftid, status); - err = set_tcb_field(adap, f, f->tid, TCB_SMAC_SEL_W, - TCB_SMAC_SEL_V(TCB_SMAC_SEL_M), - TCB_SMAC_SEL_V(f->smt->idx), 1); - if (!err) - return 0; + f = lookup_atid(t, ftid); + if (!f) { + dev_err(adap->pdev_dev, "%s:could not find filter entry", + __func__); + return; + } + ctx = f->ctx; + f->ctx = NULL; + + switch (status) { + case CPL_ERR_NONE: + f->tid = tid; + f->pending = 0; + f->valid = 1; + cxgb4_insert_tid(t, f, f->tid, 0); + cxgb4_free_atid(t, ftid); + if (ctx) { + ctx->tid = f->tid; + ctx->result = 0; + } + if (configure_filter_tcb(adap, tid, f)) { + clear_filter(adap, f); + cxgb4_remove_tid(t, 0, tid, 0); + kfree(f); + if (ctx) { + ctx->result = -EINVAL; + complete(&ctx->completion); + } + return; + } + break; -smac_err: - dev_err(adap->pdev_dev, "filter %u smac config failed with error %u\n", - f->tid, err); - return err; + default: + dev_err(adap->pdev_dev, "%s: filter creation PROBLEM; status = %u\n", + __func__, status); + + if (ctx) { + if (status == CPL_ERR_TCAM_FULL) + ctx->result = -EAGAIN; + else + ctx->result = -EINVAL; + } + clear_filter(adap, f); + cxgb4_free_atid(t, ftid); + kfree(f); + } + if (ctx) + complete(&ctx->completion); } /* Handle a filter write/deletion reply. */ @@ -915,3 +1701,25 @@ void filter_rpl(struct adapter *adap, const struct cpl_set_tcb_rpl *rpl) complete(&ctx->completion); } } + +int init_hash_filter(struct adapter *adap) +{ + /* On T6, verify the necessary register configs and warn the user in + * case of improper config + */ + if (is_t6(adap->params.chip)) { + if (TCAM_ACTV_HIT_G(t4_read_reg(adap, LE_DB_RSP_CODE_0_A)) != 4) + goto err; + + if (HASH_ACTV_HIT_G(t4_read_reg(adap, LE_DB_RSP_CODE_1_A)) != 4) + goto err; + } else { + dev_err(adap->pdev_dev, "Hash filter supported only on T6\n"); + return -EINVAL; + } + adap->params.hash_filter = 1; + return 0; +err: + dev_warn(adap->pdev_dev, "Invalid hash filter config!\n"); + return -EINVAL; +} diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.h index 23742cb1c69f..8db5fca6dcc9 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.h @@ -37,7 +37,12 @@ #include "t4_msg.h" +#define WORD_MASK 0xffffffff + void filter_rpl(struct adapter *adap, const struct cpl_set_tcb_rpl *rpl); +void hash_filter_rpl(struct adapter *adap, const struct cpl_act_open_rpl *rpl); +void hash_del_filter_rpl(struct adapter *adap, + const struct cpl_abort_rpl_rss *rpl); void clear_filter(struct adapter *adap, struct filter_entry *f); int set_filter_wr(struct adapter *adapter, int fidx); @@ -45,4 +50,7 @@ int delete_filter(struct adapter *adapter, unsigned int fidx); int writable_filter(struct filter_entry *f); void clear_all_filters(struct adapter *adapter); +int init_hash_filter(struct adapter *adap); +bool is_filter_exact_match(struct adapter *adap, + struct ch_filter_specification *fs); #endif /* __CXGB4_FILTER_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index e16078ddb39f..8fd41917c07a 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -572,6 +572,14 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, const struct cpl_set_tcb_rpl *p = (void *)rsp; filter_rpl(q->adap, p); + } else if (opcode == CPL_ACT_OPEN_RPL) { + const struct cpl_act_open_rpl *p = (void *)rsp; + + hash_filter_rpl(q->adap, p); + } else if (opcode == CPL_ABORT_RPL_RSS) { + const struct cpl_abort_rpl_rss *p = (void *)rsp; + + hash_del_filter_rpl(q->adap, p); } else dev_err(q->adap->pdev_dev, "unexpected CPL %#x on FW event queue\n", opcode); @@ -3963,7 +3971,8 @@ static int adap_init0(struct adapter *adap) if (ret < 0) goto bye; - if (caps_cmd.ofldcaps) { + if (caps_cmd.ofldcaps || + (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_HASHFILTER))) { /* query offload-related parameters */ params[0] = FW_PARAM_DEV(NTID); params[1] = FW_PARAM_PFVF(SERVER_START); @@ -4000,8 +4009,13 @@ static int adap_init0(struct adapter *adap) adap->vres.ddp.size = val[4] - val[3] + 1; adap->params.ofldq_wr_cred = val[5]; - adap->params.offload = 1; - adap->num_ofld_uld += 1; + if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_HASHFILTER)) { + if (init_hash_filter(adap) < 0) + goto bye; + } else { + adap->params.offload = 1; + adap->num_ofld_uld += 1; + } } if (caps_cmd.rdmacaps) { params[0] = FW_PARAM_PFVF(STAG_START); @@ -5168,10 +5182,12 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) dev_warn(&pdev->dev, "could not offload tc u32, continuing\n"); - cxgb4_init_tc_flower(adapter); + if (cxgb4_init_tc_flower(adapter)) + dev_warn(&pdev->dev, + "could not offload tc flower, continuing\n"); } - if (is_offload(adapter)) { + if (is_offload(adapter) || is_hashfilter(adapter)) { if (t4_read_reg(adapter, LE_DB_CONFIG_A) & HASHEN_F) { u32 hash_base, hash_reg; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c index 614db014ef18..d4a548a6a55c 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c @@ -38,6 +38,7 @@ #include <net/tc_act/tc_vlan.h> #include "cxgb4.h" +#include "cxgb4_filter.h" #include "cxgb4_tc_flower.h" #define STATS_CHECK_PERIOD (HZ / 2) @@ -74,13 +75,8 @@ static struct ch_tc_flower_entry *allocate_flower_entry(void) static struct ch_tc_flower_entry *ch_flower_lookup(struct adapter *adap, unsigned long flower_cookie) { - struct ch_tc_flower_entry *flower_entry; - - hash_for_each_possible_rcu(adap->flower_anymatch_tbl, flower_entry, - link, flower_cookie) - if (flower_entry->tc_flower_cookie == flower_cookie) - return flower_entry; - return NULL; + return rhashtable_lookup_fast(&adap->flower_tbl, &flower_cookie, + adap->flower_ht_params); } static void cxgb4_process_flow_match(struct net_device *dev, @@ -677,11 +673,16 @@ int cxgb4_tc_flower_replace(struct net_device *dev, cxgb4_process_flow_match(dev, cls, fs); cxgb4_process_flow_actions(dev, cls, fs); - fidx = cxgb4_get_free_ftid(dev, fs->type ? PF_INET6 : PF_INET); - if (fidx < 0) { - netdev_err(dev, "%s: No fidx for offload.\n", __func__); - ret = -ENOMEM; - goto free_entry; + fs->hash = is_filter_exact_match(adap, fs); + if (fs->hash) { + fidx = 0; + } else { + fidx = cxgb4_get_free_ftid(dev, fs->type ? PF_INET6 : PF_INET); + if (fidx < 0) { + netdev_err(dev, "%s: No fidx for offload.\n", __func__); + ret = -ENOMEM; + goto free_entry; + } } init_completion(&ctx.completion); @@ -707,12 +708,17 @@ int cxgb4_tc_flower_replace(struct net_device *dev, goto free_entry; } - INIT_HLIST_NODE(&ch_flower->link); ch_flower->tc_flower_cookie = cls->cookie; ch_flower->filter_id = ctx.tid; - hash_add_rcu(adap->flower_anymatch_tbl, &ch_flower->link, cls->cookie); + ret = rhashtable_insert_fast(&adap->flower_tbl, &ch_flower->node, + adap->flower_ht_params); + if (ret) + goto del_filter; - return ret; + return 0; + +del_filter: + cxgb4_del_filter(dev, ch_flower->filter_id, &ch_flower->fs); free_entry: kfree(ch_flower); @@ -730,47 +736,70 @@ int cxgb4_tc_flower_destroy(struct net_device *dev, if (!ch_flower) return -ENOENT; - ret = cxgb4_del_filter(dev, ch_flower->filter_id); + ret = cxgb4_del_filter(dev, ch_flower->filter_id, &ch_flower->fs); if (ret) goto err; - hash_del_rcu(&ch_flower->link); + ret = rhashtable_remove_fast(&adap->flower_tbl, &ch_flower->node, + adap->flower_ht_params); + if (ret) { + netdev_err(dev, "Flow remove from rhashtable failed"); + goto err; + } kfree_rcu(ch_flower, rcu); err: return ret; } -static void ch_flower_stats_cb(struct timer_list *t) +static void ch_flower_stats_handler(struct work_struct *work) { - struct adapter *adap = from_timer(adap, t, flower_stats_timer); + struct adapter *adap = container_of(work, struct adapter, + flower_stats_work); struct ch_tc_flower_entry *flower_entry; struct ch_tc_flower_stats *ofld_stats; - unsigned int i; + struct rhashtable_iter iter; u64 packets; u64 bytes; int ret; - rcu_read_lock(); - hash_for_each_rcu(adap->flower_anymatch_tbl, i, flower_entry, link) { - ret = cxgb4_get_filter_counters(adap->port[0], - flower_entry->filter_id, - &packets, &bytes); - if (!ret) { - spin_lock(&flower_entry->lock); - ofld_stats = &flower_entry->stats; - - if (ofld_stats->prev_packet_count != packets) { - ofld_stats->prev_packet_count = packets; - ofld_stats->last_used = jiffies; + rhashtable_walk_enter(&adap->flower_tbl, &iter); + do { + flower_entry = ERR_PTR(rhashtable_walk_start(&iter)); + if (IS_ERR(flower_entry)) + goto walk_stop; + + while ((flower_entry = rhashtable_walk_next(&iter)) && + !IS_ERR(flower_entry)) { + ret = cxgb4_get_filter_counters(adap->port[0], + flower_entry->filter_id, + &packets, &bytes, + flower_entry->fs.hash); + if (!ret) { + spin_lock(&flower_entry->lock); + ofld_stats = &flower_entry->stats; + + if (ofld_stats->prev_packet_count != packets) { + ofld_stats->prev_packet_count = packets; + ofld_stats->last_used = jiffies; + } + spin_unlock(&flower_entry->lock); } - spin_unlock(&flower_entry->lock); } - } - rcu_read_unlock(); +walk_stop: + rhashtable_walk_stop(&iter); + } while (flower_entry == ERR_PTR(-EAGAIN)); + rhashtable_walk_exit(&iter); mod_timer(&adap->flower_stats_timer, jiffies + STATS_CHECK_PERIOD); } +static void ch_flower_stats_cb(struct timer_list *t) +{ + struct adapter *adap = from_timer(adap, t, flower_stats_timer); + + schedule_work(&adap->flower_stats_work); +} + int cxgb4_tc_flower_stats(struct net_device *dev, struct tc_cls_flower_offload *cls) { @@ -788,7 +817,8 @@ int cxgb4_tc_flower_stats(struct net_device *dev, } ret = cxgb4_get_filter_counters(dev, ch_flower->filter_id, - &packets, &bytes); + &packets, &bytes, + ch_flower->fs.hash); if (ret < 0) goto err; @@ -812,15 +842,35 @@ err: return ret; } -void cxgb4_init_tc_flower(struct adapter *adap) +static const struct rhashtable_params cxgb4_tc_flower_ht_params = { + .nelem_hint = 384, + .head_offset = offsetof(struct ch_tc_flower_entry, node), + .key_offset = offsetof(struct ch_tc_flower_entry, tc_flower_cookie), + .key_len = sizeof(((struct ch_tc_flower_entry *)0)->tc_flower_cookie), + .max_size = 524288, + .min_size = 512, + .automatic_shrinking = true +}; + +int cxgb4_init_tc_flower(struct adapter *adap) { - hash_init(adap->flower_anymatch_tbl); + int ret; + + adap->flower_ht_params = cxgb4_tc_flower_ht_params; + ret = rhashtable_init(&adap->flower_tbl, &adap->flower_ht_params); + if (ret) + return ret; + + INIT_WORK(&adap->flower_stats_work, ch_flower_stats_handler); timer_setup(&adap->flower_stats_timer, ch_flower_stats_cb, 0); mod_timer(&adap->flower_stats_timer, jiffies + STATS_CHECK_PERIOD); + return 0; } void cxgb4_cleanup_tc_flower(struct adapter *adap) { if (adap->flower_stats_timer.function) del_timer_sync(&adap->flower_stats_timer); + cancel_work_sync(&adap->flower_stats_work); + rhashtable_destroy(&adap->flower_tbl); } diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h index 202d5c9ec303..050c8a50ae41 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.h @@ -48,7 +48,7 @@ struct ch_tc_flower_entry { struct ch_filter_specification fs; struct ch_tc_flower_stats stats; unsigned long tc_flower_cookie; - struct hlist_node link; + struct rhash_head node; struct rcu_head rcu; spinlock_t lock; /* lock for stats */ u32 filter_id; @@ -115,6 +115,6 @@ int cxgb4_tc_flower_destroy(struct net_device *dev, int cxgb4_tc_flower_stats(struct net_device *dev, struct tc_cls_flower_offload *cls); -void cxgb4_init_tc_flower(struct adapter *adap); +int cxgb4_init_tc_flower(struct adapter *adap); void cxgb4_cleanup_tc_flower(struct adapter *adap); #endif /* __CXGB4_TC_FLOWER_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c index 48970ba08bdc..cd0cd13a964d 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_u32.c @@ -380,7 +380,7 @@ int cxgb4_delete_knode(struct net_device *dev, struct tc_cls_u32_offload *cls) return -EINVAL; } - ret = cxgb4_del_filter(dev, filter_id); + ret = cxgb4_del_filter(dev, filter_id, NULL); if (ret) goto out; @@ -399,7 +399,7 @@ int cxgb4_delete_knode(struct net_device *dev, struct tc_cls_u32_offload *cls) if (!test_bit(j, link->tid_map)) continue; - ret = __cxgb4_del_filter(dev, j, NULL); + ret = __cxgb4_del_filter(dev, j, NULL, NULL); if (ret) goto out; diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h index 52324c77a4fe..08e709ab6dd4 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h @@ -217,12 +217,14 @@ int __cxgb4_set_filter(struct net_device *dev, int filter_id, struct ch_filter_specification *fs, struct filter_ctx *ctx); int __cxgb4_del_filter(struct net_device *dev, int filter_id, + struct ch_filter_specification *fs, struct filter_ctx *ctx); int cxgb4_set_filter(struct net_device *dev, int filter_id, struct ch_filter_specification *fs); -int cxgb4_del_filter(struct net_device *dev, int filter_id); +int cxgb4_del_filter(struct net_device *dev, int filter_id, + struct ch_filter_specification *fs); int cxgb4_get_filter_counters(struct net_device *dev, unsigned int fidx, - u64 *hitcnt, u64 *bytecnt); + u64 *hitcnt, u64 *bytecnt, bool hash); static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue) { diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index c289ca1efc1b..efe9d3a20135 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -8816,11 +8816,21 @@ int t4_init_tp_params(struct adapter *adap, bool sleep_ok) * shift positions of several elements of the Compressed Filter Tuple * for this adapter which we need frequently ... */ - adap->params.tp.vlan_shift = t4_filter_field_shift(adap, VLAN_F); - adap->params.tp.vnic_shift = t4_filter_field_shift(adap, VNIC_ID_F); + adap->params.tp.fcoe_shift = t4_filter_field_shift(adap, FCOE_F); adap->params.tp.port_shift = t4_filter_field_shift(adap, PORT_F); + adap->params.tp.vnic_shift = t4_filter_field_shift(adap, VNIC_ID_F); + adap->params.tp.vlan_shift = t4_filter_field_shift(adap, VLAN_F); + adap->params.tp.tos_shift = t4_filter_field_shift(adap, TOS_F); adap->params.tp.protocol_shift = t4_filter_field_shift(adap, PROTOCOL_F); + adap->params.tp.ethertype_shift = t4_filter_field_shift(adap, + ETHERTYPE_F); + adap->params.tp.macmatch_shift = t4_filter_field_shift(adap, + MACMATCH_F); + adap->params.tp.matchtype_shift = t4_filter_field_shift(adap, + MPSHITTYPE_F); + adap->params.tp.frag_shift = t4_filter_field_shift(adap, + FRAGMENTATION_F); /* If TP_INGRESS_CONFIG.VNID == 0, then TP_VLAN_PRI_MAP.VNIC_ID * represents the presence of an Outer VLAN instead of a VNIC ID. @@ -8828,6 +8838,10 @@ int t4_init_tp_params(struct adapter *adap, bool sleep_ok) if ((adap->params.tp.ingress_config & VNIC_F) == 0) adap->params.tp.vnic_shift = -1; + v = t4_read_reg(adap, LE_3_DB_HASH_MASK_GEN_IPV4_T6_A); + adap->params.tp.hash_filter_mask = v; + v = t4_read_reg(adap, LE_4_DB_HASH_MASK_GEN_IPV4_T6_A); + adap->params.tp.hash_filter_mask |= ((u64)v << 32); return 0; } diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h index ce4838d907da..7e12f241145b 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h @@ -286,6 +286,7 @@ struct work_request_hdr { #define RX_CHANNEL_S 26 #define RX_CHANNEL_V(x) ((x) << RX_CHANNEL_S) +#define RX_CHANNEL_F RX_CHANNEL_V(1U) #define WND_SCALE_EN_S 28 #define WND_SCALE_EN_V(x) ((x) << WND_SCALE_EN_S) @@ -315,6 +316,10 @@ struct cpl_pass_open_req { #define DELACK_V(x) ((x) << DELACK_S) #define DELACK_F DELACK_V(1U) +#define NON_OFFLOAD_S 7 +#define NON_OFFLOAD_V(x) ((x) << NON_OFFLOAD_S) +#define NON_OFFLOAD_F NON_OFFLOAD_V(1U) + #define DSCP_S 22 #define DSCP_M 0x3F #define DSCP_V(x) ((x) << DSCP_S) diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index 483fb7644355..623f453bd327 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -2933,6 +2933,23 @@ #define SSRAMINTPERR_V(x) ((x) << SSRAMINTPERR_S) #define SSRAMINTPERR_F SSRAMINTPERR_V(1U) +#define LE_DB_RSP_CODE_0_A 0x19c74 + +#define TCAM_ACTV_HIT_S 0 +#define TCAM_ACTV_HIT_M 0x1fU +#define TCAM_ACTV_HIT_V(x) ((x) << TCAM_ACTV_HIT_S) +#define TCAM_ACTV_HIT_G(x) (((x) >> TCAM_ACTV_HIT_S) & TCAM_ACTV_HIT_M) + +#define LE_DB_RSP_CODE_1_A 0x19c78 + +#define HASH_ACTV_HIT_S 25 +#define HASH_ACTV_HIT_M 0x1fU +#define HASH_ACTV_HIT_V(x) ((x) << HASH_ACTV_HIT_S) +#define HASH_ACTV_HIT_G(x) (((x) >> HASH_ACTV_HIT_S) & HASH_ACTV_HIT_M) + +#define LE_3_DB_HASH_MASK_GEN_IPV4_T6_A 0x19eac +#define LE_4_DB_HASH_MASK_GEN_IPV4_T6_A 0x19eb0 + #define NCSI_INT_CAUSE_A 0x1a0d8 #define CIM_DM_PRTY_ERR_S 8 diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h b/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h index c1c76663034d..3297ce025e8b 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_tcb.h @@ -42,6 +42,28 @@ #define TCB_T_FLAGS_W 1 +#define TF_CCTRL_ECE_S 60 #define TF_CCTRL_CWR_S 61 +#define TF_CCTRL_RFR_S 62 +#define TCB_RSS_INFO_W 3 +#define TCB_RSS_INFO_S 0 +#define TCB_RSS_INFO_M 0x3ffULL +#define TCB_RSS_INFO_V(x) ((x) << TCB_RSS_INFO_S) + +#define TCB_TIMESTAMP_W 5 +#define TCB_TIMESTAMP_S 0 +#define TCB_TIMESTAMP_M 0xffffffffULL +#define TCB_TIMESTAMP_V(x) ((x) << TCB_TIMESTAMP_S) + +#define TCB_RTT_TS_RECENT_AGE_W 6 +#define TCB_RTT_TS_RECENT_AGE_S 0 +#define TCB_RTT_TS_RECENT_AGE_M 0xffffffffULL +#define TCB_RTT_TS_RECENT_AGE_V(x) ((x) << TCB_RTT_TS_RECENT_AGE_S) + +#define TCB_SND_UNA_RAW_W 10 +#define TCB_RX_FRAG2_PTR_RAW_W 27 +#define TCB_RX_FRAG3_LEN_RAW_W 29 +#define TCB_RX_FRAG3_START_IDX_OFFSET_RAW_W 30 +#define TCB_PDU_HDR_LEN_W 31 #endif /* __T4_TCB_H */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h index 2ba890926c73..57eb4ad3485d 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h @@ -1092,6 +1092,7 @@ enum fw_caps_config_switch { enum fw_caps_config_nic { FW_CAPS_CONFIG_NIC = 0x00000001, FW_CAPS_CONFIG_NIC_VM = 0x00000002, + FW_CAPS_CONFIG_NIC_HASHFILTER = 0x00000020, }; enum fw_caps_config_ofld { |