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Commit 4158e38

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author
Paolo Abeni
committed
Revert "Merge branch 'octeontx2-minor-tc-fixes'"
This reverts commit 35d099d, reversing changes made to 58d8bcd. I wrongly applied that to the net-next tree instead of the intended target tree (net). Reverting it on net-next. Signed-off-by: Paolo Abeni <[email protected]>
1 parent cc1049c commit 4158e38

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1 file changed

+33
-73
lines changed
  • drivers/net/ethernet/marvell/octeontx2/nic

1 file changed

+33
-73
lines changed

‎drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c

Lines changed: 33 additions & 73 deletions
Original file line numberDiff line numberDiff line change
@@ -28,19 +28,13 @@
2828
#define MAX_RATE_EXPONENT 0x0FULL
2929
#define MAX_RATE_MANTISSA 0xFFULL
3030

31-
#define CN10K_MAX_BURST_MANTISSA 0x7FFFULL
32-
#define CN10K_MAX_BURST_SIZE 8453888ULL
33-
3431
/* Bitfields in NIX_TLX_PIR register */
3532
#define TLX_RATE_MANTISSA GENMASK_ULL(8, 1)
3633
#define TLX_RATE_EXPONENT GENMASK_ULL(12, 9)
3734
#define TLX_RATE_DIVIDER_EXPONENT GENMASK_ULL(16, 13)
3835
#define TLX_BURST_MANTISSA GENMASK_ULL(36, 29)
3936
#define TLX_BURST_EXPONENT GENMASK_ULL(40, 37)
4037

41-
#define CN10K_TLX_BURST_MANTISSA GENMASK_ULL(43, 29)
42-
#define CN10K_TLX_BURST_EXPONENT GENMASK_ULL(47, 44)
43-
4438
struct otx2_tc_flow_stats {
4539
u64 bytes;
4640
u64 pkts;
@@ -83,42 +77,33 @@ int otx2_tc_alloc_ent_bitmap(struct otx2_nic *nic)
8377
}
8478
EXPORT_SYMBOL(otx2_tc_alloc_ent_bitmap);
8579

86-
static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst,
87-
u32 *burst_exp, u32 *burst_mantissa)
80+
static void otx2_get_egress_burst_cfg(u32 burst, u32 *burst_exp,
81+
u32 *burst_mantissa)
8882
{
89-
int max_burst, max_mantissa;
9083
unsigned int tmp;
9184

92-
if (is_dev_otx2(nic->pdev)) {
93-
max_burst = MAX_BURST_SIZE;
94-
max_mantissa = MAX_BURST_MANTISSA;
95-
} else {
96-
max_burst = CN10K_MAX_BURST_SIZE;
97-
max_mantissa = CN10K_MAX_BURST_MANTISSA;
98-
}
99-
10085
/* Burst is calculated as
10186
* ((256 + BURST_MANTISSA) << (1 + BURST_EXPONENT)) / 256
10287
* Max supported burst size is 130,816 bytes.
10388
*/
104-
burst = min_t(u32, burst, max_burst);
89+
burst = min_t(u32, burst, MAX_BURST_SIZE);
10590
if (burst) {
10691
*burst_exp = ilog2(burst) ? ilog2(burst) - 1 : 0;
10792
tmp = burst - rounddown_pow_of_two(burst);
108-
if (burst < max_mantissa)
93+
if (burst < MAX_BURST_MANTISSA)
10994
*burst_mantissa = tmp * 2;
11095
else
11196
*burst_mantissa = tmp / (1ULL << (*burst_exp - 7));
11297
} else {
11398
*burst_exp = MAX_BURST_EXPONENT;
114-
*burst_mantissa = max_mantissa;
99+
*burst_mantissa = MAX_BURST_MANTISSA;
115100
}
116101
}
117102

118-
static void otx2_get_egress_rate_cfg(u64 maxrate, u32 *exp,
103+
static void otx2_get_egress_rate_cfg(u32 maxrate, u32 *exp,
119104
u32 *mantissa, u32 *div_exp)
120105
{
121-
u64 tmp;
106+
unsigned int tmp;
122107

123108
/* Rate calculation by hardware
124109
*
@@ -147,44 +132,21 @@ static void otx2_get_egress_rate_cfg(u64 maxrate, u32 *exp,
147132
}
148133
}
149134

150-
static u64 otx2_get_txschq_rate_regval(struct otx2_nic *nic,
151-
u64 maxrate, u32 burst)
152-
{
153-
u32 burst_exp, burst_mantissa;
154-
u32 exp, mantissa, div_exp;
155-
u64 regval = 0;
156-
157-
/* Get exponent and mantissa values from the desired rate */
158-
otx2_get_egress_burst_cfg(nic, burst, &burst_exp, &burst_mantissa);
159-
otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp);
160-
161-
if (is_dev_otx2(nic->pdev)) {
162-
regval = FIELD_PREP(TLX_BURST_EXPONENT, (u64)burst_exp) |
163-
FIELD_PREP(TLX_BURST_MANTISSA, (u64)burst_mantissa) |
164-
FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) |
165-
FIELD_PREP(TLX_RATE_EXPONENT, exp) |
166-
FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0);
167-
} else {
168-
regval = FIELD_PREP(CN10K_TLX_BURST_EXPONENT, (u64)burst_exp) |
169-
FIELD_PREP(CN10K_TLX_BURST_MANTISSA, (u64)burst_mantissa) |
170-
FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) |
171-
FIELD_PREP(TLX_RATE_EXPONENT, exp) |
172-
FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0);
173-
}
174-
175-
return regval;
176-
}
177-
178-
static int otx2_set_matchall_egress_rate(struct otx2_nic *nic,
179-
u32 burst, u64 maxrate)
135+
static int otx2_set_matchall_egress_rate(struct otx2_nic *nic, u32 burst, u32 maxrate)
180136
{
181137
struct otx2_hw *hw = &nic->hw;
182138
struct nix_txschq_config *req;
139+
u32 burst_exp, burst_mantissa;
140+
u32 exp, mantissa, div_exp;
183141
int txschq, err;
184142

185143
/* All SQs share the same TL4, so pick the first scheduler */
186144
txschq = hw->txschq_list[NIX_TXSCH_LVL_TL4][0];
187145

146+
/* Get exponent and mantissa values from the desired rate */
147+
otx2_get_egress_burst_cfg(burst, &burst_exp, &burst_mantissa);
148+
otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp);
149+
188150
mutex_lock(&nic->mbox.lock);
189151
req = otx2_mbox_alloc_msg_nix_txschq_cfg(&nic->mbox);
190152
if (!req) {
@@ -195,7 +157,11 @@ static int otx2_set_matchall_egress_rate(struct otx2_nic *nic,
195157
req->lvl = NIX_TXSCH_LVL_TL4;
196158
req->num_regs = 1;
197159
req->reg[0] = NIX_AF_TL4X_PIR(txschq);
198-
req->regval[0] = otx2_get_txschq_rate_regval(nic, maxrate, burst);
160+
req->regval[0] = FIELD_PREP(TLX_BURST_EXPONENT, burst_exp) |
161+
FIELD_PREP(TLX_BURST_MANTISSA, burst_mantissa) |
162+
FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) |
163+
FIELD_PREP(TLX_RATE_EXPONENT, exp) |
164+
FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0);
199165

200166
err = otx2_sync_mbox_msg(&nic->mbox);
201167
mutex_unlock(&nic->mbox.lock);
@@ -264,7 +230,7 @@ static int otx2_tc_egress_matchall_install(struct otx2_nic *nic,
264230
struct netlink_ext_ack *extack = cls->common.extack;
265231
struct flow_action *actions = &cls->rule->action;
266232
struct flow_action_entry *entry;
267-
u64 rate;
233+
u32 rate;
268234
int err;
269235

270236
err = otx2_tc_validate_flow(nic, actions, extack);
@@ -290,7 +256,7 @@ static int otx2_tc_egress_matchall_install(struct otx2_nic *nic,
290256
}
291257
/* Convert bytes per second to Mbps */
292258
rate = entry->police.rate_bytes_ps * 8;
293-
rate = max_t(u64, rate / 1000000, 1);
259+
rate = max_t(u32, rate / 1000000, 1);
294260
err = otx2_set_matchall_egress_rate(nic, entry->police.burst, rate);
295261
if (err)
296262
return err;
@@ -648,27 +614,21 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node,
648614

649615
flow_spec->dport = match.key->dst;
650616
flow_mask->dport = match.mask->dst;
651-
652-
if (flow_mask->dport) {
653-
if (ip_proto == IPPROTO_UDP)
654-
req->features |= BIT_ULL(NPC_DPORT_UDP);
655-
else if (ip_proto == IPPROTO_TCP)
656-
req->features |= BIT_ULL(NPC_DPORT_TCP);
657-
else if (ip_proto == IPPROTO_SCTP)
658-
req->features |= BIT_ULL(NPC_DPORT_SCTP);
659-
}
617+
if (ip_proto == IPPROTO_UDP)
618+
req->features |= BIT_ULL(NPC_DPORT_UDP);
619+
else if (ip_proto == IPPROTO_TCP)
620+
req->features |= BIT_ULL(NPC_DPORT_TCP);
621+
else if (ip_proto == IPPROTO_SCTP)
622+
req->features |= BIT_ULL(NPC_DPORT_SCTP);
660623

661624
flow_spec->sport = match.key->src;
662625
flow_mask->sport = match.mask->src;
663-
664-
if (flow_mask->sport) {
665-
if (ip_proto == IPPROTO_UDP)
666-
req->features |= BIT_ULL(NPC_SPORT_UDP);
667-
else if (ip_proto == IPPROTO_TCP)
668-
req->features |= BIT_ULL(NPC_SPORT_TCP);
669-
else if (ip_proto == IPPROTO_SCTP)
670-
req->features |= BIT_ULL(NPC_SPORT_SCTP);
671-
}
626+
if (ip_proto == IPPROTO_UDP)
627+
req->features |= BIT_ULL(NPC_SPORT_UDP);
628+
else if (ip_proto == IPPROTO_TCP)
629+
req->features |= BIT_ULL(NPC_SPORT_TCP);
630+
else if (ip_proto == IPPROTO_SCTP)
631+
req->features |= BIT_ULL(NPC_SPORT_SCTP);
672632
}
673633

674634
return otx2_tc_parse_actions(nic, &rule->action, req, f, node);

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