@@ -245,9 +245,9 @@ M(NPC_MCAM_READ_BASE_RULE, 0x6011, npc_read_base_steer_rule, \
M(NPC_MCAM_GET_STATS, 0x6012, npc_mcam_entry_stats, \
npc_mcam_get_stats_req, \
npc_mcam_get_stats_rsp) \
-M(NPC_GET_SECRET_KEY, 0x6013, npc_get_secret_key, \
- npc_get_secret_key_req, \
- npc_get_secret_key_rsp) \
+M(NPC_GET_FIELD_HASH_INFO, 0x6013, npc_get_field_hash_info, \
+ npc_get_field_hash_info_req, \
+ npc_get_field_hash_info_rsp) \
M(NPC_GET_FIELD_STATUS, 0x6014, npc_get_field_status, \
npc_get_field_status_req, \
npc_get_field_status_rsp) \
@@ -1524,14 +1524,20 @@ struct npc_mcam_get_stats_rsp {
u8 stat_ena; /* enabled */
};
-struct npc_get_secret_key_req {
+struct npc_get_field_hash_info_req {
struct mbox_msghdr hdr;
u8 intf;
};
-struct npc_get_secret_key_rsp {
+struct npc_get_field_hash_info_rsp {
struct mbox_msghdr hdr;
u64 secret_key[3];
+#define NPC_MAX_HASH 2
+#define NPC_MAX_HASH_MASK 2
+ /* NPC_AF_INTF(0..1)_HASH(0..1)_MASK(0..1) */
+ u64 hash_mask[NPC_MAX_INTF][NPC_MAX_HASH][NPC_MAX_HASH_MASK];
+ /* NPC_AF_INTF(0..1)_HASH(0..1)_RESULT_CTRL */
+ u64 hash_ctrl[NPC_MAX_INTF][NPC_MAX_HASH];
};
enum ptp_op {
@@ -13,11 +13,6 @@
#include "rvu_npc_fs.h"
#include "rvu_npc_hash.h"
-#define NPC_BYTESM GENMASK_ULL(19, 16)
-#define NPC_HDR_OFFSET GENMASK_ULL(15, 8)
-#define NPC_KEY_OFFSET GENMASK_ULL(5, 0)
-#define NPC_LDATA_EN BIT_ULL(7)
-
static const char * const npc_flow_names[] = {
[NPC_DMAC] = "dmac",
[NPC_SMAC] = "smac",
@@ -442,6 +437,7 @@ static void npc_handle_multi_layer_fields(struct rvu *rvu, int blkaddr, u8 intf)
static void npc_scan_ldata(struct rvu *rvu, int blkaddr, u8 lid,
u8 lt, u64 cfg, u8 intf)
{
+ struct npc_mcam_kex_hash *mkex_hash = rvu->kpu.mkex_hash;
struct npc_mcam *mcam = &rvu->hw->mcam;
u8 hdr, key, nr_bytes, bit_offset;
u8 la_ltype, la_start;
@@ -490,8 +486,21 @@ do { \
NPC_SCAN_HDR(NPC_SIP_IPV4, NPC_LID_LC, NPC_LT_LC_IP, 12, 4);
NPC_SCAN_HDR(NPC_DIP_IPV4, NPC_LID_LC, NPC_LT_LC_IP, 16, 4);
NPC_SCAN_HDR(NPC_IPFRAG_IPV6, NPC_LID_LC, NPC_LT_LC_IP6_EXT, 6, 1);
- NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 16);
- NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 16);
+ if (rvu->hw->cap.npc_hash_extract) {
+ if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][0])
+ NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 4);
+ else
+ NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 16);
+
+ if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][1])
+ NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 4);
+ else
+ NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 16);
+ } else {
+ NPC_SCAN_HDR(NPC_SIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 8, 16);
+ NPC_SCAN_HDR(NPC_DIP_IPV6, NPC_LID_LC, NPC_LT_LC_IP6, 24, 16);
+ }
+
NPC_SCAN_HDR(NPC_SPORT_UDP, NPC_LID_LD, NPC_LT_LD_UDP, 0, 2);
NPC_SCAN_HDR(NPC_DPORT_UDP, NPC_LID_LD, NPC_LT_LD_UDP, 2, 2);
NPC_SCAN_HDR(NPC_SPORT_TCP, NPC_LID_LD, NPC_LT_LD_TCP, 0, 2);
@@ -9,6 +9,10 @@
#define __RVU_NPC_FS_H
#define IPV6_WORDS 4
+#define NPC_BYTESM GENMASK_ULL(19, 16)
+#define NPC_HDR_OFFSET GENMASK_ULL(15, 8)
+#define NPC_KEY_OFFSET GENMASK_ULL(5, 0)
+#define NPC_LDATA_EN BIT_ULL(7)
void npc_update_entry(struct rvu *rvu, enum key_fields type,
struct mcam_entry *entry, u64 val_lo,
@@ -78,42 +78,43 @@ static u32 rvu_npc_toeplitz_hash(const u64 *data, u64 *key, size_t data_bit_len,
return hash_out;
}
-u32 npc_field_hash_calc(u64 *ldata, struct npc_mcam_kex_hash *mkex_hash,
- u64 *secret_key, u8 intf, u8 hash_idx)
+u32 npc_field_hash_calc(u64 *ldata, struct npc_get_field_hash_info_rsp rsp,
+ u8 intf, u8 hash_idx)
{
u64 hash_key[3];
u64 data_padded[2];
u32 field_hash;
- hash_key[0] = secret_key[1] << 31;
- hash_key[0] |= secret_key[2];
- hash_key[1] = secret_key[1] >> 33;
- hash_key[1] |= secret_key[0] << 31;
- hash_key[2] = secret_key[0] >> 33;
+ hash_key[0] = rsp.secret_key[1] << 31;
+ hash_key[0] |= rsp.secret_key[2];
+ hash_key[1] = rsp.secret_key[1] >> 33;
+ hash_key[1] |= rsp.secret_key[0] << 31;
+ hash_key[2] = rsp.secret_key[0] >> 33;
- data_padded[0] = mkex_hash->hash_mask[intf][hash_idx][0] & ldata[0];
- data_padded[1] = mkex_hash->hash_mask[intf][hash_idx][1] & ldata[1];
+ data_padded[0] = rsp.hash_mask[intf][hash_idx][0] & ldata[0];
+ data_padded[1] = rsp.hash_mask[intf][hash_idx][1] & ldata[1];
field_hash = rvu_npc_toeplitz_hash(data_padded, hash_key, 128, 159);
- field_hash &= mkex_hash->hash_ctrl[intf][hash_idx] >> 32;
- field_hash |= mkex_hash->hash_ctrl[intf][hash_idx];
+ field_hash &= FIELD_GET(GENMASK(63, 32), rsp.hash_ctrl[intf][hash_idx]);
+ field_hash += FIELD_GET(GENMASK(31, 0), rsp.hash_ctrl[intf][hash_idx]);
return field_hash;
}
-static u64 npc_update_use_hash(int lt, int ld)
+static u64 npc_update_use_hash(struct rvu *rvu, int blkaddr,
+ u8 intf, int lid, int lt, int ld)
{
- u64 cfg = 0;
-
- switch (lt) {
- case NPC_LT_LC_IP6:
- /* Update use_hash(bit-20) and bytesm1 (bit-16:19)
- * in KEX_LD_CFG
- */
- cfg = KEX_LD_CFG_USE_HASH(0x1, 0x03,
- ld ? 0x8 : 0x18,
- 0x1, 0x0, 0x10);
- break;
- }
+ u8 hdr, key;
+ u64 cfg;
+
+ cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_LIDX_LTX_LDX_CFG(intf, lid, lt, ld));
+ hdr = FIELD_GET(NPC_HDR_OFFSET, cfg);
+ key = FIELD_GET(NPC_KEY_OFFSET, cfg);
+
+ /* Update use_hash(bit-20) to 'true' and
+ * bytesm1(bit-16:19) to '0x3' in KEX_LD_CFG
+ */
+ cfg = KEX_LD_CFG_USE_HASH(0x1, 0x03,
+ hdr, 0x1, 0x0, key);
return cfg;
}
@@ -132,12 +133,13 @@ static void npc_program_mkex_hash_rx(struct rvu *rvu, int blkaddr,
for (lt = 0; lt < NPC_MAX_LT; lt++) {
for (ld = 0; ld < NPC_MAX_LD; ld++) {
if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][ld]) {
- u64 cfg = npc_update_use_hash(lt, ld);
+ u64 cfg;
- hash_cnt++;
if (hash_cnt == NPC_MAX_HASH)
return;
+ cfg = npc_update_use_hash(rvu, blkaddr,
+ intf, lid, lt, ld);
/* Set updated KEX configuration */
SET_KEX_LD(intf, lid, lt, ld, cfg);
/* Set HASH configuration */
@@ -149,6 +151,8 @@ static void npc_program_mkex_hash_rx(struct rvu *rvu, int blkaddr,
mkex_hash->hash_mask[intf][ld][1]);
SET_KEX_LD_HASH_CTRL(intf, ld,
mkex_hash->hash_ctrl[intf][ld]);
+
+ hash_cnt++;
}
}
}
@@ -169,12 +173,13 @@ static void npc_program_mkex_hash_tx(struct rvu *rvu, int blkaddr,
for (lt = 0; lt < NPC_MAX_LT; lt++) {
for (ld = 0; ld < NPC_MAX_LD; ld++)
if (mkex_hash->lid_lt_ld_hash_en[intf][lid][lt][ld]) {
- u64 cfg = npc_update_use_hash(lt, ld);
+ u64 cfg;
- hash_cnt++;
if (hash_cnt == NPC_MAX_HASH)
return;
+ cfg = npc_update_use_hash(rvu, blkaddr,
+ intf, lid, lt, ld);
/* Set updated KEX configuration */
SET_KEX_LD(intf, lid, lt, ld, cfg);
/* Set HASH configuration */
@@ -187,8 +192,6 @@ static void npc_program_mkex_hash_tx(struct rvu *rvu, int blkaddr,
SET_KEX_LD_HASH_CTRL(intf, ld,
mkex_hash->hash_ctrl[intf][ld]);
hash_cnt++;
- if (hash_cnt == NPC_MAX_HASH)
- return;
}
}
}
@@ -238,8 +241,8 @@ void npc_update_field_hash(struct rvu *rvu, u8 intf,
struct flow_msg *omask)
{
struct npc_mcam_kex_hash *mkex_hash = rvu->kpu.mkex_hash;
- struct npc_get_secret_key_req req;
- struct npc_get_secret_key_rsp rsp;
+ struct npc_get_field_hash_info_req req;
+ struct npc_get_field_hash_info_rsp rsp;
u64 ldata[2], cfg;
u32 field_hash;
u8 hash_idx;
@@ -250,7 +253,7 @@ void npc_update_field_hash(struct rvu *rvu, u8 intf,
}
req.intf = intf;
- rvu_mbox_handler_npc_get_secret_key(rvu, &req, &rsp);
+ rvu_mbox_handler_npc_get_field_hash_info(rvu, &req, &rsp);
for (hash_idx = 0; hash_idx < NPC_MAX_HASH; hash_idx++) {
cfg = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_CFG(intf, hash_idx));
@@ -266,44 +269,45 @@ void npc_update_field_hash(struct rvu *rvu, u8 intf,
* is hashed to 32 bit value.
*/
case NPC_LT_LC_IP6:
- if (features & BIT_ULL(NPC_SIP_IPV6)) {
+ /* ld[0] == hash_idx[0] == Source IPv6
+ * ld[1] == hash_idx[1] == Destination IPv6
+ */
+ if ((features & BIT_ULL(NPC_SIP_IPV6)) && !hash_idx) {
u32 src_ip[IPV6_WORDS];
be32_to_cpu_array(src_ip, pkt->ip6src, IPV6_WORDS);
- ldata[0] = (u64)src_ip[0] << 32 | src_ip[1];
- ldata[1] = (u64)src_ip[2] << 32 | src_ip[3];
+ ldata[1] = (u64)src_ip[0] << 32 | src_ip[1];
+ ldata[0] = (u64)src_ip[2] << 32 | src_ip[3];
field_hash = npc_field_hash_calc(ldata,
- mkex_hash,
- rsp.secret_key,
+ rsp,
intf,
hash_idx);
npc_update_entry(rvu, NPC_SIP_IPV6, entry,
- field_hash, 0, 32, 0, intf);
+ field_hash, 0,
+ GENMASK(31, 0), 0, intf);
memcpy(&opkt->ip6src, &pkt->ip6src,
sizeof(pkt->ip6src));
memcpy(&omask->ip6src, &mask->ip6src,
sizeof(mask->ip6src));
- break;
- }
-
- if (features & BIT_ULL(NPC_DIP_IPV6)) {
+ } else if ((features & BIT_ULL(NPC_DIP_IPV6)) && hash_idx) {
u32 dst_ip[IPV6_WORDS];
be32_to_cpu_array(dst_ip, pkt->ip6dst, IPV6_WORDS);
- ldata[0] = (u64)dst_ip[0] << 32 | dst_ip[1];
- ldata[1] = (u64)dst_ip[2] << 32 | dst_ip[3];
+ ldata[1] = (u64)dst_ip[0] << 32 | dst_ip[1];
+ ldata[0] = (u64)dst_ip[2] << 32 | dst_ip[3];
field_hash = npc_field_hash_calc(ldata,
- mkex_hash,
- rsp.secret_key,
+ rsp,
intf,
hash_idx);
npc_update_entry(rvu, NPC_DIP_IPV6, entry,
- field_hash, 0, 32, 0, intf);
+ field_hash, 0,
+ GENMASK(31, 0), 0, intf);
memcpy(&opkt->ip6dst, &pkt->ip6dst,
sizeof(pkt->ip6dst));
memcpy(&omask->ip6dst, &mask->ip6dst,
sizeof(mask->ip6dst));
}
+
break;
}
}
@@ -311,13 +315,13 @@ void npc_update_field_hash(struct rvu *rvu, u8 intf,
}
}
-int rvu_mbox_handler_npc_get_secret_key(struct rvu *rvu,
- struct npc_get_secret_key_req *req,
- struct npc_get_secret_key_rsp *rsp)
+int rvu_mbox_handler_npc_get_field_hash_info(struct rvu *rvu,
+ struct npc_get_field_hash_info_req *req,
+ struct npc_get_field_hash_info_rsp *rsp)
{
u64 *secret_key = rsp->secret_key;
u8 intf = req->intf;
- int blkaddr;
+ int i, j, blkaddr;
blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
if (blkaddr < 0) {
@@ -329,6 +333,19 @@ int rvu_mbox_handler_npc_get_secret_key(struct rvu *rvu,
secret_key[1] = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY1(intf));
secret_key[2] = rvu_read64(rvu, blkaddr, NPC_AF_INTFX_SECRET_KEY2(intf));
+ for (i = 0; i < NPC_MAX_HASH; i++) {
+ for (j = 0; j < NPC_MAX_HASH_MASK; j++) {
+ rsp->hash_mask[NIX_INTF_RX][i][j] =
+ GET_KEX_LD_HASH_MASK(NIX_INTF_RX, i, j);
+ rsp->hash_mask[NIX_INTF_TX][i][j] =
+ GET_KEX_LD_HASH_MASK(NIX_INTF_TX, i, j);
+ }
+ }
+
+ for (i = 0; i < NPC_MAX_INTF; i++)
+ for (j = 0; j < NPC_MAX_HASH; j++)
+ rsp->hash_ctrl[i][j] = GET_KEX_LD_HASH_CTRL(i, j);
+
return 0;
}
@@ -31,6 +31,12 @@
rvu_write64(rvu, blkaddr, \
NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx), cfg)
+#define GET_KEX_LD_HASH_CTRL(intf, ld) \
+ rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld))
+
+#define GET_KEX_LD_HASH_MASK(intf, ld, mask_idx) \
+ rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx))
+
#define SET_KEX_LD_HASH_CTRL(intf, ld, cfg) \
rvu_write64(rvu, blkaddr, \
NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld), cfg)
@@ -56,8 +62,8 @@ void npc_update_field_hash(struct rvu *rvu, u8 intf,
struct flow_msg *omask);
void npc_config_secret_key(struct rvu *rvu, int blkaddr);
void npc_program_mkex_hash(struct rvu *rvu, int blkaddr);
-u32 npc_field_hash_calc(u64 *ldata, struct npc_mcam_kex_hash *mkex_hash,
- u64 *secret_key, u8 intf, u8 hash_idx);
+u32 npc_field_hash_calc(u64 *ldata, struct npc_get_field_hash_info_rsp rsp,
+ u8 intf, u8 hash_idx);
static struct npc_mcam_kex_hash npc_mkex_hash_default __maybe_unused = {
.lid_lt_ld_hash_en = {