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Message-Id: <1574007266-17123-15-git-send-email-sunil.kovvuri@gmail.com>
Date: Sun, 17 Nov 2019 21:44:25 +0530
From: sunil.kovvuri@...il.com
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, Kiran Kumar K <kirankumark@...vell.com>,
Subbaraya Sundeep <sbhatta@...vell.com>,
Sunil Goutham <sgoutham@...vell.com>
Subject: [PATCH 14/15] octeontx2-af: NPC Tx parsed data key extraction profile
From: Kiran Kumar K <kirankumark@...vell.com>
This patch enables Tx side parsing by configuring the pkind 63 in
tx_parse_cfg and add default ldata profile for tx.
Unlike Ingress parsing where CHAN field represents the port where the
pkt is received, for a transmitted pkt, NIX HW adds a header which will
have PF_FUNC, SQ idx information, which if extracted to NPC parse key
can be used to do egress side filtering/forwarding.
This patch configures HW to extract this header info into parse key.
Signed-off-by: Kiran Kumar K <kirankumark@...vell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@...vell.com>
Signed-off-by: Sunil Goutham <sgoutham@...vell.com>
---
.../net/ethernet/marvell/octeontx2/af/rvu_nix.c | 6 +
.../net/ethernet/marvell/octeontx2/af/rvu_npc.c | 235 ++++++++++++++++-----
2 files changed, 191 insertions(+), 50 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index f1201e0..07f0f4b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -58,6 +58,8 @@ enum nix_makr_fmt_indexes {
NIX_MARK_CFG_MAX,
};
+#define NIX_TX_PKIND 63ULL
+
/* For now considering MC resources needed for broadcast
* pkt replication only. i.e 256 HWVFs + 12 PFs.
*/
@@ -1110,6 +1112,10 @@ int rvu_mbox_handler_nix_lf_alloc(struct rvu *rvu,
/* Config Rx pkt length, csum checks and apad enable / disable */
rvu_write64(rvu, blkaddr, NIX_AF_LFX_RX_CFG(nixlf), req->rx_cfg);
+ /* Configure pkind for TX parse config, 63 from npc_profile */
+ cfg = NIX_TX_PKIND;
+ rvu_write64(rvu, blkaddr, NIX_AF_LFX_TX_PARSE_CFG(nixlf), cfg);
+
intf = is_afvf(pcifunc) ? NIX_INTF_TYPE_LBK : NIX_INTF_TYPE_CGX;
err = nix_interface_init(rvu, pcifunc, intf, nixlf);
if (err)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
index cf61796..d1aab99 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
@@ -29,12 +29,33 @@
#define NPC_PARSE_RESULT_DMAC_OFFSET 8
#define NPC_KEX_CHAN_MASK 0xFFFULL
+#define NPC_KEX_PF_FUNC_MASK 0xFFFFULL
static void npc_mcam_free_all_entries(struct rvu *rvu, struct npc_mcam *mcam,
int blkaddr, u16 pcifunc);
static void npc_mcam_free_all_counters(struct rvu *rvu, struct npc_mcam *mcam,
u16 pcifunc);
+static int npc_mcam_verify_pf_func(struct rvu *rvu,
+ struct mcam_entry *entry_data,
+ u8 intf, u16 pcifunc)
+{
+ u16 pf_func, pf_func_mask;
+
+ if (intf == NIX_INTF_RX)
+ return 0;
+
+ pf_func_mask = (entry_data->kw_mask[0] >> 32) &
+ NPC_KEX_PF_FUNC_MASK;
+ pf_func = (entry_data->kw[0] >> 32) & NPC_KEX_PF_FUNC_MASK;
+
+ pf_func = htons(pf_func);
+ if (pf_func_mask != NPC_KEX_PF_FUNC_MASK || pf_func != pcifunc)
+ return -EINVAL;
+
+ return 0;
+}
+
static int npc_mcam_verify_channel(struct rvu *rvu, u16 pcifunc,
u8 intf, u16 channel)
{
@@ -720,37 +741,78 @@ void rvu_npc_disable_mcam_entries(struct rvu *rvu, u16 pcifunc, int nixlf)
(((bytesm1) << 16) | ((hdr_ofs) << 8) | ((ena) << 7) | \
((flags_ena) << 6) | ((key_ofs) & 0x3F))
-static void npc_config_ldata_extract(struct rvu *rvu, int blkaddr)
+static void npc_config_tx_ldata_extract(struct rvu *rvu, int blkaddr)
{
- struct npc_mcam *mcam = &rvu->hw->mcam;
- int lid, ltype;
- int lid_count;
u64 cfg;
- cfg = rvu_read64(rvu, blkaddr, NPC_AF_CONST);
- lid_count = (cfg >> 4) & 0xF;
+ /* Default TX MCAM KEX profile */
+ /* Layer A: Ethernet: */
- /* First clear any existing config i.e
- * disable LDATA and FLAGS extraction.
- */
- for (lid = 0; lid < lid_count; lid++) {
- for (ltype = 0; ltype < 16; ltype++) {
- SET_KEX_LD(NIX_INTF_RX, lid, ltype, 0, 0ULL);
- SET_KEX_LD(NIX_INTF_RX, lid, ltype, 1, 0ULL);
- SET_KEX_LD(NIX_INTF_TX, lid, ltype, 0, 0ULL);
- SET_KEX_LD(NIX_INTF_TX, lid, ltype, 1, 0ULL);
+ /* PF_FUNC: 2B , KW0 [47:32] */
+ cfg = KEX_LD_CFG(0x01, 0x0, 0x1, 0x0, 0x4);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, 0, cfg);
- SET_KEX_LDFLAGS(NIX_INTF_RX, 0, ltype, 0ULL);
- SET_KEX_LDFLAGS(NIX_INTF_RX, 1, ltype, 0ULL);
- SET_KEX_LDFLAGS(NIX_INTF_TX, 0, ltype, 0ULL);
- SET_KEX_LDFLAGS(NIX_INTF_TX, 1, ltype, 0ULL);
- }
- }
+ /* PF_FUNC incase of higig2 */
+ cfg = KEX_LD_CFG(0x01, 0x0, 0x1, 0x0, 0x4);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, 0,
+ cfg);
- if (mcam->keysize != NPC_MCAM_KEY_X2)
- return;
+ /* Layer B: Single VLAN (CTAG) */
+ /* CTAG VLAN[2..3] KW0[63:48] */
+ cfg = KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x6);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LB, NPC_LT_LB_CTAG, 0, cfg);
+
+ /* CTAG VLAN[2..3] KW1[15:0] */
+ cfg = KEX_LD_CFG(0x01, 0x4, 0x1, 0x0, 0x8);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LB, NPC_LT_LB_CTAG, 1, cfg);
+
+ /* Layer B: Stacked VLAN (STAG|QinQ) */
+ /* Outer VLAN: 2 bytes, KW0[63:48] */
+ cfg = KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x6);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 0, cfg);
+
+ /* Outer VLAN: 2 Bytes, KW1[15:0] */
+ cfg = KEX_LD_CFG(0x01, 0x8, 0x1, 0x0, 0x8);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 1, cfg);
+
+ /* DMAC: 6 bytes, KW1[63:16] */
+ cfg = KEX_LD_CFG(0x05, 0x8, 0x1, 0x0, 0xa);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LA, NPC_LT_LA_IH_NIX_ETHER, 1, cfg);
+
+ /* clasification in higig2 header */
+ cfg = KEX_LD_CFG(0x01, 0x10, 0x1, 0x0, 0xa);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LA, NPC_LT_LA_IH_NIX_HIGIG2_ETHER, 1,
+ cfg);
+
+ /* Layer C: IPv4 */
+ /* SIP+DIP: 8 bytes, KW2[63:0] */
+ cfg = KEX_LD_CFG(0x07, 0xc, 0x1, 0x0, 0x10);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LC, NPC_LT_LC_IP, 0, cfg);
+
+ /* Layer D:UDP */
+ /* SPORT: 2 bytes, KW3[15:0] */
+ cfg = KEX_LD_CFG(0x1, 0x0, 0x1, 0x0, 0x18);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LD, NPC_LT_LD_UDP, 0, cfg);
+
+ /* DPORT: 2 bytes, KW3[31:16] */
+ cfg = KEX_LD_CFG(0x1, 0x2, 0x1, 0x0, 0x1a);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LD, NPC_LT_LD_UDP, 1, cfg);
+
+ /* Layer D:TCP */
+ /* SPORT: 2 bytes, KW3[15:0] */
+ cfg = KEX_LD_CFG(0x1, 0x0, 0x1, 0x0, 0x18);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LD, NPC_LT_LD_TCP, 0, cfg);
+
+ /* DPORT: 2 bytes, KW3[31:16] */
+ cfg = KEX_LD_CFG(0x1, 0x2, 0x1, 0x0, 0x1a);
+ SET_KEX_LD(NIX_INTF_TX, NPC_LID_LD, NPC_LT_LD_TCP, 1, cfg);
+}
+
+static void npc_config_rx_ldata_extract(struct rvu *rvu, int blkaddr)
+{
+ u64 cfg;
- /* Default MCAM KEX profile */
+ /* Default RX MCAM KEX profile */
/* Layer A: Ethernet: */
/* DMAC: 6 bytes, KW1[47:0] */
@@ -761,21 +823,34 @@ static void npc_config_ldata_extract(struct rvu *rvu, int blkaddr)
cfg = KEX_LD_CFG(0x01, 0xc, 0x1, 0x0, 0x4);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LA, NPC_LT_LA_ETHER, 1, cfg);
+ /* Classification in higig2 header */
+ cfg = KEX_LD_CFG(0x01, 0x8, 0x1, 0x0, NPC_PARSE_RESULT_DMAC_OFFSET);
+ SET_KEX_LD(NIX_INTF_RX, NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, 0, cfg);
+
+ /* Vid in higig2 header */
+ cfg = KEX_LD_CFG(0x01, 0xc, 0x1, 0x0, NPC_PARSE_RESULT_DMAC_OFFSET + 2);
+ SET_KEX_LD(NIX_INTF_RX, NPC_LID_LA, NPC_LT_LA_HIGIG2_ETHER, 1, cfg);
+
/* Layer B: Single VLAN (CTAG) */
/* CTAG VLAN[2..3] + Ethertype, 4 bytes, KW0[63:32] */
- cfg = KEX_LD_CFG(0x03, 0x0, 0x1, 0x0, 0x4);
+ cfg = KEX_LD_CFG(0x03, 0x2, 0x1, 0x0, 0x4);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LB, NPC_LT_LB_CTAG, 0, cfg);
/* Layer B: Stacked VLAN (STAG|QinQ) */
- /* CTAG VLAN[2..3] + Ethertype, 4 bytes, KW0[63:32] */
- cfg = KEX_LD_CFG(0x03, 0x4, 0x1, 0x0, 0x4);
+ /* Outer VLAN: 2 bytes, KW0[63:48] */
+ cfg = KEX_LD_CFG(0x01, 0x2, 0x1, 0x0, 0x6);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 0, cfg);
+ /* Ethertype: 2 bytes, KW0[47:32] */
+ cfg = KEX_LD_CFG(0x01, 0x8, 0x1, 0x0, 0x4);
+ SET_KEX_LD(NIX_INTF_RX, NPC_LID_LB, NPC_LT_LB_STAG_QINQ, 1, cfg);
+
/* Layer C: IPv4 */
/* SIP+DIP: 8 bytes, KW2[63:0] */
cfg = KEX_LD_CFG(0x07, 0xc, 0x1, 0x0, 0x10);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LC, NPC_LT_LC_IP, 0, cfg);
/* TOS: 1 byte, KW1[63:56] */
+
cfg = KEX_LD_CFG(0x0, 0x1, 0x1, 0x0, 0xf);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LC, NPC_LT_LC_IP, 1, cfg);
@@ -783,6 +858,7 @@ static void npc_config_ldata_extract(struct rvu *rvu, int blkaddr)
/* SPORT: 2 bytes, KW3[15:0] */
cfg = KEX_LD_CFG(0x1, 0x0, 0x1, 0x0, 0x18);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LD, NPC_LT_LD_UDP, 0, cfg);
+
/* DPORT: 2 bytes, KW3[31:16] */
cfg = KEX_LD_CFG(0x1, 0x2, 0x1, 0x0, 0x1a);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LD, NPC_LT_LD_UDP, 1, cfg);
@@ -791,11 +867,49 @@ static void npc_config_ldata_extract(struct rvu *rvu, int blkaddr)
/* SPORT: 2 bytes, KW3[15:0] */
cfg = KEX_LD_CFG(0x1, 0x0, 0x1, 0x0, 0x18);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LD, NPC_LT_LD_TCP, 0, cfg);
+
/* DPORT: 2 bytes, KW3[31:16] */
cfg = KEX_LD_CFG(0x1, 0x2, 0x1, 0x0, 0x1a);
SET_KEX_LD(NIX_INTF_RX, NPC_LID_LD, NPC_LT_LD_TCP, 1, cfg);
}
+static void npc_config_ldata_extract(struct rvu *rvu, int blkaddr)
+{
+ int lid, ltype;
+ int lid_count;
+ u64 cfg;
+
+ cfg = rvu_read64(rvu, blkaddr, NPC_AF_CONST);
+ lid_count = (cfg >> 4) & 0xF;
+
+ /* First clear any existing config i.e
+ * disable LDATA and FLAGS extraction.
+ */
+ for (lid = 0; lid < lid_count; lid++) {
+ for (ltype = 0; ltype < 16; ltype++) {
+ SET_KEX_LD(NIX_INTF_RX, lid, ltype, 0, 0ULL);
+ SET_KEX_LD(NIX_INTF_RX, lid, ltype, 1, 0ULL);
+ SET_KEX_LD(NIX_INTF_TX, lid, ltype, 0, 0ULL);
+ SET_KEX_LD(NIX_INTF_TX, lid, ltype, 1, 0ULL);
+
+ SET_KEX_LDFLAGS(NIX_INTF_RX, 0, ltype, 0ULL);
+ SET_KEX_LDFLAGS(NIX_INTF_RX, 1, ltype, 0ULL);
+ SET_KEX_LDFLAGS(NIX_INTF_TX, 0, ltype, 0ULL);
+ SET_KEX_LDFLAGS(NIX_INTF_TX, 1, ltype, 0ULL);
+ }
+ }
+
+ cfg = (rvu_read64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(0)) >> 32) & 0x07;
+ /* Default profile works with key size NPC_MCAM_KEY_X2 */
+ if (cfg != NPC_MCAM_KEY_X2)
+ return;
+
+ /* Config RX ldata extract */
+ npc_config_rx_ldata_extract(rvu, blkaddr);
+ /* Config TX ldata extract */
+ npc_config_tx_ldata_extract(rvu, blkaddr);
+}
+
static void npc_program_mkex_profile(struct rvu *rvu, int blkaddr,
struct npc_mcam_kex *mkex)
{
@@ -837,6 +951,20 @@ static void npc_program_mkex_profile(struct rvu *rvu, int blkaddr,
}
}
+static bool is_parse_nibble_config_valid(struct rvu *rvu,
+ struct npc_mcam_kex *mcam_kex)
+{
+ if (!is_rvu_96xx_B0(rvu))
+ return true;
+
+ /* Due to a HW issue in above silicon versions, parse nibble enable
+ * configuration has to be identical for both Rx and Tx interfaces.
+ */
+ if (mcam_kex->keyx_cfg[NIX_INTF_RX] != mcam_kex->keyx_cfg[NIX_INTF_TX])
+ return false;
+ return true;
+}
+
/* strtoull of "mkexprof" with base:36 */
#define MKEX_SIGN 0x19bbfdbd15f
#define MKEX_END_SIGN 0xdeadbeef
@@ -854,8 +982,10 @@ static void npc_load_mkex_profile(struct rvu *rvu, int blkaddr)
if (!strncmp(mkex_profile, "default", MKEX_NAME_LEN))
goto load_default;
- if (cgx_get_mkex_prfl_info(&prfl_addr, &prfl_sz))
+ if (!rvu->fwdata)
goto load_default;
+ prfl_addr = rvu->fwdata->mcam_addr;
+ prfl_sz = rvu->fwdata->mcam_sz;
if (!prfl_addr || !prfl_sz)
goto load_default;
@@ -870,13 +1000,7 @@ static void npc_load_mkex_profile(struct rvu *rvu, int blkaddr)
/* Compare with mkex mod_param name string */
if (mcam_kex->mkex_sign == MKEX_SIGN &&
!strncmp(mcam_kex->name, mkex_profile, MKEX_NAME_LEN)) {
- /* Due to an errata (35786) in A0/B0 pass silicon,
- * parse nibble enable configuration has to be
- * identical for both Rx and Tx interfaces.
- */
- if (is_rvu_96xx_B0(rvu) &&
- mcam_kex->keyx_cfg[NIX_INTF_RX] !=
- mcam_kex->keyx_cfg[NIX_INTF_TX])
+ if (!is_parse_nibble_config_valid(rvu, mcam_kex))
goto load_default;
/* Program selected mkex profile */
@@ -1219,36 +1343,36 @@ int rvu_npc_init(struct rvu *rvu)
/* Enable below for Rx pkts.
* - Outer IPv4 header checksum validation.
- * - Detect outer L2 broadcast address and set NPC_RESULT_S[L2M].
+ * - Detect outer L2 broadcast address and set NPC_RESULT_S[L2B].
+ * - Detect outer L2 multicast address and set NPC_RESULT_S[L2M].
* - Inner IPv4 header checksum validation.
* - Set non zero checksum error code value
*/
rvu_write64(rvu, blkaddr, NPC_AF_PCK_CFG,
rvu_read64(rvu, blkaddr, NPC_AF_PCK_CFG) |
- BIT_ULL(32) | BIT_ULL(24) | BIT_ULL(6) |
- BIT_ULL(2) | BIT_ULL(1));
+ ((u64)NPC_EC_OIP4_CSUM << 32) | (NPC_EC_IIP4_CSUM << 24) |
+ BIT_ULL(7) | BIT_ULL(6) | BIT_ULL(2) | BIT_ULL(1));
/* Set RX and TX side MCAM search key size.
- * LA..LD (ltype only) + Channel
+ * LA..LE (ltype only) + Channel
*/
- nibble_ena = 0x49247;
+ nibble_ena = 0x249207;
rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(NIX_INTF_RX),
((keyz & 0x3) << 32) | nibble_ena);
- /* Due to an errata (35786) in A0 pass silicon, parse nibble enable
- * configuration has to be identical for both Rx and Tx interfaces.
- */
+
+ /* Extract Ltypes LID_LA to LID_LE */
if (!is_rvu_96xx_B0(rvu))
- nibble_ena = (1ULL << 19) - 1;
+ nibble_ena = 0x249200;
rvu_write64(rvu, blkaddr, NPC_AF_INTFX_KEX_CFG(NIX_INTF_TX),
((keyz & 0x3) << 32) | nibble_ena);
+ /* Configure MKEX profile */
+ npc_load_mkex_profile(rvu, blkaddr);
+
err = npc_mcam_rsrcs_init(rvu, blkaddr);
if (err)
return err;
- /* Configure MKEX profile */
- npc_load_mkex_profile(rvu, blkaddr);
-
/* Set TX miss action to UCAST_DEFAULT i.e
* transmit the packet on NIX LF SQ's default channel.
*/
@@ -1262,7 +1386,6 @@ int rvu_npc_init(struct rvu *rvu)
NIX_RX_ACTIONOP_DROP);
rvu_write64(rvu, blkaddr, NPC_AF_INTFX_MISS_STAT_ACT(NIX_INTF_RX),
BIT_ULL(9) | mcam->rx_miss_act_cntr);
-
return 0;
}
@@ -1869,6 +1992,12 @@ int rvu_mbox_handler_npc_mcam_write_entry(struct rvu *rvu,
goto exit;
}
+ if (npc_mcam_verify_pf_func(rvu, &req->entry_data, req->intf,
+ pcifunc)) {
+ rc = NPC_MCAM_INVALID_REQ;
+ goto exit;
+ }
+
npc_config_mcam_entry(rvu, mcam, blkaddr, req->entry, req->intf,
&req->entry_data, req->enable_entry);
@@ -2091,10 +2220,11 @@ int rvu_mbox_handler_npc_mcam_free_counter(struct rvu *rvu,
index = find_next_bit(mcam->bmap, mcam->bmap_entries, entry);
if (index >= mcam->bmap_entries)
break;
+ entry = index + 1;
+
if (mcam->entry2cntr_map[index] != req->cntr)
continue;
- entry = index + 1;
npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr,
index, req->cntr);
}
@@ -2137,10 +2267,11 @@ int rvu_mbox_handler_npc_mcam_unmap_counter(struct rvu *rvu,
index = find_next_bit(mcam->bmap, mcam->bmap_entries, entry);
if (index >= mcam->bmap_entries)
break;
+ entry = index + 1;
+
if (mcam->entry2cntr_map[index] != req->cntr)
continue;
- entry = index + 1;
npc_unmap_mcam_entry_and_cntr(rvu, mcam, blkaddr,
index, req->cntr);
}
@@ -2221,6 +2352,10 @@ int rvu_mbox_handler_npc_mcam_alloc_and_write_entry(struct rvu *rvu,
if (npc_mcam_verify_channel(rvu, req->hdr.pcifunc, req->intf, channel))
return NPC_MCAM_INVALID_REQ;
+ if (npc_mcam_verify_pf_func(rvu, &req->entry_data, req->intf,
+ req->hdr.pcifunc))
+ return NPC_MCAM_INVALID_REQ;
+
/* Try to allocate a MCAM entry */
entry_req.hdr.pcifunc = req->hdr.pcifunc;
entry_req.contig = true;
--
2.7.4
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