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path: root/drivers/net/ethernet/mscc/ocelot_ace.c
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Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_ace.c')
-rw-r--r--drivers/net/ethernet/mscc/ocelot_ace.c782
1 files changed, 0 insertions, 782 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_ace.c b/drivers/net/ethernet/mscc/ocelot_ace.c
deleted file mode 100644
index 86fc6e6b46dd..000000000000
--- a/drivers/net/ethernet/mscc/ocelot_ace.c
+++ /dev/null
@@ -1,782 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
-/* Microsemi Ocelot Switch driver
- * Copyright (c) 2019 Microsemi Corporation
- */
-
-#include <linux/iopoll.h>
-#include <linux/proc_fs.h>
-
-#include "ocelot_ace.h"
-#include "ocelot_vcap.h"
-#include "ocelot_s2.h"
-
-#define OCELOT_POLICER_DISCARD 0x17f
-
-static struct ocelot_acl_block *acl_block;
-
-struct vcap_props {
- const char *name; /* Symbolic name */
- u16 tg_width; /* Type-group width (in bits) */
- u16 sw_count; /* Sub word count */
- u16 entry_count; /* Entry count */
- u16 entry_words; /* Number of entry words */
- u16 entry_width; /* Entry width (in bits) */
- u16 action_count; /* Action count */
- u16 action_words; /* Number of action words */
- u16 action_width; /* Action width (in bits) */
- u16 action_type_width; /* Action type width (in bits) */
- struct {
- u16 width; /* Action type width (in bits) */
- u16 count; /* Action type sub word count */
- } action_table[2];
- u16 counter_words; /* Number of counter words */
- u16 counter_width; /* Counter width (in bits) */
-};
-
-#define ENTRY_WIDTH 32
-#define BITS_TO_32BIT(x) (1 + (((x) - 1) / ENTRY_WIDTH))
-
-static const struct vcap_props vcap_is2 = {
- .name = "IS2",
- .tg_width = 2,
- .sw_count = 4,
- .entry_count = VCAP_IS2_CNT,
- .entry_words = BITS_TO_32BIT(VCAP_IS2_ENTRY_WIDTH),
- .entry_width = VCAP_IS2_ENTRY_WIDTH,
- .action_count = (VCAP_IS2_CNT + VCAP_PORT_CNT + 2),
- .action_words = BITS_TO_32BIT(VCAP_IS2_ACTION_WIDTH),
- .action_width = (VCAP_IS2_ACTION_WIDTH),
- .action_type_width = 1,
- .action_table = {
- {
- .width = (IS2_AO_ACL_ID + IS2_AL_ACL_ID),
- .count = 2
- },
- {
- .width = 6,
- .count = 4
- },
- },
- .counter_words = BITS_TO_32BIT(4 * ENTRY_WIDTH),
- .counter_width = ENTRY_WIDTH,
-};
-
-enum vcap_sel {
- VCAP_SEL_ENTRY = 0x1,
- VCAP_SEL_ACTION = 0x2,
- VCAP_SEL_COUNTER = 0x4,
- VCAP_SEL_ALL = 0x7,
-};
-
-enum vcap_cmd {
- VCAP_CMD_WRITE = 0, /* Copy from Cache to TCAM */
- VCAP_CMD_READ = 1, /* Copy from TCAM to Cache */
- VCAP_CMD_MOVE_UP = 2, /* Move <count> up */
- VCAP_CMD_MOVE_DOWN = 3, /* Move <count> down */
- VCAP_CMD_INITIALIZE = 4, /* Write all (from cache) */
-};
-
-#define VCAP_ENTRY_WIDTH 12 /* Max entry width (32bit words) */
-#define VCAP_COUNTER_WIDTH 4 /* Max counter width (32bit words) */
-
-struct vcap_data {
- u32 entry[VCAP_ENTRY_WIDTH]; /* ENTRY_DAT */
- u32 mask[VCAP_ENTRY_WIDTH]; /* MASK_DAT */
- u32 action[VCAP_ENTRY_WIDTH]; /* ACTION_DAT */
- u32 counter[VCAP_COUNTER_WIDTH]; /* CNT_DAT */
- u32 tg; /* TG_DAT */
- u32 type; /* Action type */
- u32 tg_sw; /* Current type-group */
- u32 cnt; /* Current counter */
- u32 key_offset; /* Current entry offset */
- u32 action_offset; /* Current action offset */
- u32 counter_offset; /* Current counter offset */
- u32 tg_value; /* Current type-group value */
- u32 tg_mask; /* Current type-group mask */
-};
-
-static u32 vcap_s2_read_update_ctrl(struct ocelot *oc)
-{
- return ocelot_read(oc, S2_CORE_UPDATE_CTRL);
-}
-
-static void vcap_cmd(struct ocelot *oc, u16 ix, int cmd, int sel)
-{
- u32 value = (S2_CORE_UPDATE_CTRL_UPDATE_CMD(cmd) |
- S2_CORE_UPDATE_CTRL_UPDATE_ADDR(ix) |
- S2_CORE_UPDATE_CTRL_UPDATE_SHOT);
-
- if ((sel & VCAP_SEL_ENTRY) && ix >= vcap_is2.entry_count)
- return;
-
- if (!(sel & VCAP_SEL_ENTRY))
- value |= S2_CORE_UPDATE_CTRL_UPDATE_ENTRY_DIS;
-
- if (!(sel & VCAP_SEL_ACTION))
- value |= S2_CORE_UPDATE_CTRL_UPDATE_ACTION_DIS;
-
- if (!(sel & VCAP_SEL_COUNTER))
- value |= S2_CORE_UPDATE_CTRL_UPDATE_CNT_DIS;
-
- ocelot_write(oc, value, S2_CORE_UPDATE_CTRL);
- readx_poll_timeout(vcap_s2_read_update_ctrl, oc, value,
- (value & S2_CORE_UPDATE_CTRL_UPDATE_SHOT) == 0,
- 10, 100000);
-}
-
-/* Convert from 0-based row to VCAP entry row and run command */
-static void vcap_row_cmd(struct ocelot *oc, u32 row, int cmd, int sel)
-{
- vcap_cmd(oc, vcap_is2.entry_count - row - 1, cmd, sel);
-}
-
-static void vcap_entry2cache(struct ocelot *oc, struct vcap_data *data)
-{
- u32 i;
-
- for (i = 0; i < vcap_is2.entry_words; i++) {
- ocelot_write_rix(oc, data->entry[i], S2_CACHE_ENTRY_DAT, i);
- ocelot_write_rix(oc, ~data->mask[i], S2_CACHE_MASK_DAT, i);
- }
- ocelot_write(oc, data->tg, S2_CACHE_TG_DAT);
-}
-
-static void vcap_cache2entry(struct ocelot *oc, struct vcap_data *data)
-{
- u32 i;
-
- for (i = 0; i < vcap_is2.entry_words; i++) {
- data->entry[i] = ocelot_read_rix(oc, S2_CACHE_ENTRY_DAT, i);
- // Invert mask
- data->mask[i] = ~ocelot_read_rix(oc, S2_CACHE_MASK_DAT, i);
- }
- data->tg = ocelot_read(oc, S2_CACHE_TG_DAT);
-}
-
-static void vcap_action2cache(struct ocelot *oc, struct vcap_data *data)
-{
- u32 i, width, mask;
-
- /* Encode action type */
- width = vcap_is2.action_type_width;
- if (width) {
- mask = GENMASK(width, 0);
- data->action[0] = ((data->action[0] & ~mask) | data->type);
- }
-
- for (i = 0; i < vcap_is2.action_words; i++)
- ocelot_write_rix(oc, data->action[i], S2_CACHE_ACTION_DAT, i);
-
- for (i = 0; i < vcap_is2.counter_words; i++)
- ocelot_write_rix(oc, data->counter[i], S2_CACHE_CNT_DAT, i);
-}
-
-static void vcap_cache2action(struct ocelot *oc, struct vcap_data *data)
-{
- u32 i, width;
-
- for (i = 0; i < vcap_is2.action_words; i++)
- data->action[i] = ocelot_read_rix(oc, S2_CACHE_ACTION_DAT, i);
-
- for (i = 0; i < vcap_is2.counter_words; i++)
- data->counter[i] = ocelot_read_rix(oc, S2_CACHE_CNT_DAT, i);
-
- /* Extract action type */
- width = vcap_is2.action_type_width;
- data->type = (width ? (data->action[0] & GENMASK(width, 0)) : 0);
-}
-
-/* Calculate offsets for entry */
-static void is2_data_get(struct vcap_data *data, int ix)
-{
- u32 i, col, offset, count, cnt, base, width = vcap_is2.tg_width;
-
- count = (data->tg_sw == VCAP_TG_HALF ? 2 : 4);
- col = (ix % 2);
- cnt = (vcap_is2.sw_count / count);
- base = (vcap_is2.sw_count - col * cnt - cnt);
- data->tg_value = 0;
- data->tg_mask = 0;
- for (i = 0; i < cnt; i++) {
- offset = ((base + i) * width);
- data->tg_value |= (data->tg_sw << offset);
- data->tg_mask |= GENMASK(offset + width - 1, offset);
- }
-
- /* Calculate key/action/counter offsets */
- col = (count - col - 1);
- data->key_offset = (base * vcap_is2.entry_width) / vcap_is2.sw_count;
- data->counter_offset = (cnt * col * vcap_is2.counter_width);
- i = data->type;
- width = vcap_is2.action_table[i].width;
- cnt = vcap_is2.action_table[i].count;
- data->action_offset =
- (((cnt * col * width) / count) + vcap_is2.action_type_width);
-}
-
-static void vcap_data_set(u32 *data, u32 offset, u32 len, u32 value)
-{
- u32 i, v, m;
-
- for (i = 0; i < len; i++, offset++) {
- v = data[offset / ENTRY_WIDTH];
- m = (1 << (offset % ENTRY_WIDTH));
- if (value & (1 << i))
- v |= m;
- else
- v &= ~m;
- data[offset / ENTRY_WIDTH] = v;
- }
-}
-
-static u32 vcap_data_get(u32 *data, u32 offset, u32 len)
-{
- u32 i, v, m, value = 0;
-
- for (i = 0; i < len; i++, offset++) {
- v = data[offset / ENTRY_WIDTH];
- m = (1 << (offset % ENTRY_WIDTH));
- if (v & m)
- value |= (1 << i);
- }
- return value;
-}
-
-static void vcap_key_set(struct vcap_data *data, u32 offset, u32 width,
- u32 value, u32 mask)
-{
- vcap_data_set(data->entry, offset + data->key_offset, width, value);
- vcap_data_set(data->mask, offset + data->key_offset, width, mask);
-}
-
-static void vcap_key_bytes_set(struct vcap_data *data, u32 offset, u8 *val,
- u8 *msk, u32 count)
-{
- u32 i, j, n = 0, value = 0, mask = 0;
-
- /* Data wider than 32 bits are split up in chunks of maximum 32 bits.
- * The 32 LSB of the data are written to the 32 MSB of the TCAM.
- */
- offset += (count * 8);
- for (i = 0; i < count; i++) {
- j = (count - i - 1);
- value += (val[j] << n);
- mask += (msk[j] << n);
- n += 8;
- if (n == ENTRY_WIDTH || (i + 1) == count) {
- offset -= n;
- vcap_key_set(data, offset, n, value, mask);
- n = 0;
- value = 0;
- mask = 0;
- }
- }
-}
-
-static void vcap_key_l4_port_set(struct vcap_data *data, u32 offset,
- struct ocelot_vcap_udp_tcp *port)
-{
- vcap_key_set(data, offset, 16, port->value, port->mask);
-}
-
-static void vcap_key_bit_set(struct vcap_data *data, u32 offset,
- enum ocelot_vcap_bit val)
-{
- vcap_key_set(data, offset, 1, val == OCELOT_VCAP_BIT_1 ? 1 : 0,
- val == OCELOT_VCAP_BIT_ANY ? 0 : 1);
-}
-
-#define VCAP_KEY_SET(fld, val, msk) \
- vcap_key_set(&data, IS2_HKO_##fld, IS2_HKL_##fld, val, msk)
-#define VCAP_KEY_ANY_SET(fld) \
- vcap_key_set(&data, IS2_HKO_##fld, IS2_HKL_##fld, 0, 0)
-#define VCAP_KEY_BIT_SET(fld, val) vcap_key_bit_set(&data, IS2_HKO_##fld, val)
-#define VCAP_KEY_BYTES_SET(fld, val, msk) \
- vcap_key_bytes_set(&data, IS2_HKO_##fld, val, msk, IS2_HKL_##fld / 8)
-
-static void vcap_action_set(struct vcap_data *data, u32 offset, u32 width,
- u32 value)
-{
- vcap_data_set(data->action, offset + data->action_offset, width, value);
-}
-
-#define VCAP_ACT_SET(fld, val) \
- vcap_action_set(data, IS2_AO_##fld, IS2_AL_##fld, val)
-
-static void is2_action_set(struct vcap_data *data,
- enum ocelot_ace_action action)
-{
- switch (action) {
- case OCELOT_ACL_ACTION_DROP:
- VCAP_ACT_SET(PORT_MASK, 0x0);
- VCAP_ACT_SET(MASK_MODE, 0x1);
- VCAP_ACT_SET(POLICE_ENA, 0x1);
- VCAP_ACT_SET(POLICE_IDX, OCELOT_POLICER_DISCARD);
- VCAP_ACT_SET(CPU_QU_NUM, 0x0);
- VCAP_ACT_SET(CPU_COPY_ENA, 0x0);
- break;
- case OCELOT_ACL_ACTION_TRAP:
- VCAP_ACT_SET(PORT_MASK, 0x0);
- VCAP_ACT_SET(MASK_MODE, 0x1);
- VCAP_ACT_SET(POLICE_ENA, 0x0);
- VCAP_ACT_SET(POLICE_IDX, 0x0);
- VCAP_ACT_SET(CPU_QU_NUM, 0x0);
- VCAP_ACT_SET(CPU_COPY_ENA, 0x1);
- break;
- }
-}
-
-static void is2_entry_set(struct ocelot *ocelot, int ix,
- struct ocelot_ace_rule *ace)
-{
- u32 val, msk, type, type_mask = 0xf, i, count;
- struct ocelot_ace_vlan *tag = &ace->vlan;
- struct ocelot_vcap_u64 payload;
- struct vcap_data data;
- int row = (ix / 2);
-
- memset(&payload, 0, sizeof(payload));
- memset(&data, 0, sizeof(data));
-
- /* Read row */
- vcap_row_cmd(ocelot, row, VCAP_CMD_READ, VCAP_SEL_ALL);
- vcap_cache2entry(ocelot, &data);
- vcap_cache2action(ocelot, &data);
-
- data.tg_sw = VCAP_TG_HALF;
- is2_data_get(&data, ix);
- data.tg = (data.tg & ~data.tg_mask);
- if (ace->prio != 0)
- data.tg |= data.tg_value;
-
- data.type = IS2_ACTION_TYPE_NORMAL;
-
- VCAP_KEY_ANY_SET(PAG);
- VCAP_KEY_SET(IGR_PORT_MASK, 0, ~BIT(ace->chip_port));
- VCAP_KEY_BIT_SET(FIRST, OCELOT_VCAP_BIT_1);
- VCAP_KEY_BIT_SET(HOST_MATCH, OCELOT_VCAP_BIT_ANY);
- VCAP_KEY_BIT_SET(L2_MC, ace->dmac_mc);
- VCAP_KEY_BIT_SET(L2_BC, ace->dmac_bc);
- VCAP_KEY_BIT_SET(VLAN_TAGGED, tag->tagged);
- VCAP_KEY_SET(VID, tag->vid.value, tag->vid.mask);
- VCAP_KEY_SET(PCP, tag->pcp.value[0], tag->pcp.mask[0]);
- VCAP_KEY_BIT_SET(DEI, tag->dei);
-
- switch (ace->type) {
- case OCELOT_ACE_TYPE_ETYPE: {
- struct ocelot_ace_frame_etype *etype = &ace->frame.etype;
-
- type = IS2_TYPE_ETYPE;
- VCAP_KEY_BYTES_SET(L2_DMAC, etype->dmac.value,
- etype->dmac.mask);
- VCAP_KEY_BYTES_SET(L2_SMAC, etype->smac.value,
- etype->smac.mask);
- VCAP_KEY_BYTES_SET(MAC_ETYPE_ETYPE, etype->etype.value,
- etype->etype.mask);
- VCAP_KEY_ANY_SET(MAC_ETYPE_L2_PAYLOAD); // Clear unused bits
- vcap_key_bytes_set(&data, IS2_HKO_MAC_ETYPE_L2_PAYLOAD,
- etype->data.value, etype->data.mask, 2);
- break;
- }
- case OCELOT_ACE_TYPE_LLC: {
- struct ocelot_ace_frame_llc *llc = &ace->frame.llc;
-
- type = IS2_TYPE_LLC;
- VCAP_KEY_BYTES_SET(L2_DMAC, llc->dmac.value, llc->dmac.mask);
- VCAP_KEY_BYTES_SET(L2_SMAC, llc->smac.value, llc->smac.mask);
- for (i = 0; i < 4; i++) {
- payload.value[i] = llc->llc.value[i];
- payload.mask[i] = llc->llc.mask[i];
- }
- VCAP_KEY_BYTES_SET(MAC_LLC_L2_LLC, payload.value, payload.mask);
- break;
- }
- case OCELOT_ACE_TYPE_SNAP: {
- struct ocelot_ace_frame_snap *snap = &ace->frame.snap;
-
- type = IS2_TYPE_SNAP;
- VCAP_KEY_BYTES_SET(L2_DMAC, snap->dmac.value, snap->dmac.mask);
- VCAP_KEY_BYTES_SET(L2_SMAC, snap->smac.value, snap->smac.mask);
- VCAP_KEY_BYTES_SET(MAC_SNAP_L2_SNAP,
- ace->frame.snap.snap.value,
- ace->frame.snap.snap.mask);
- break;
- }
- case OCELOT_ACE_TYPE_ARP: {
- struct ocelot_ace_frame_arp *arp = &ace->frame.arp;
-
- type = IS2_TYPE_ARP;
- VCAP_KEY_BYTES_SET(MAC_ARP_L2_SMAC, arp->smac.value,
- arp->smac.mask);
- VCAP_KEY_BIT_SET(MAC_ARP_ARP_ADDR_SPACE_OK, arp->ethernet);
- VCAP_KEY_BIT_SET(MAC_ARP_ARP_PROTO_SPACE_OK, arp->ip);
- VCAP_KEY_BIT_SET(MAC_ARP_ARP_LEN_OK, arp->length);
- VCAP_KEY_BIT_SET(MAC_ARP_ARP_TGT_MATCH, arp->dmac_match);
- VCAP_KEY_BIT_SET(MAC_ARP_ARP_SENDER_MATCH, arp->smac_match);
- VCAP_KEY_BIT_SET(MAC_ARP_ARP_OPCODE_UNKNOWN, arp->unknown);
-
- /* OPCODE is inverse, bit 0 is reply flag, bit 1 is RARP flag */
- val = ((arp->req == OCELOT_VCAP_BIT_0 ? 1 : 0) |
- (arp->arp == OCELOT_VCAP_BIT_0 ? 2 : 0));
- msk = ((arp->req == OCELOT_VCAP_BIT_ANY ? 0 : 1) |
- (arp->arp == OCELOT_VCAP_BIT_ANY ? 0 : 2));
- VCAP_KEY_SET(MAC_ARP_ARP_OPCODE, val, msk);
- vcap_key_bytes_set(&data, IS2_HKO_MAC_ARP_L3_IP4_DIP,
- arp->dip.value.addr, arp->dip.mask.addr, 4);
- vcap_key_bytes_set(&data, IS2_HKO_MAC_ARP_L3_IP4_SIP,
- arp->sip.value.addr, arp->sip.mask.addr, 4);
- VCAP_KEY_ANY_SET(MAC_ARP_DIP_EQ_SIP);
- break;
- }
- case OCELOT_ACE_TYPE_IPV4:
- case OCELOT_ACE_TYPE_IPV6: {
- enum ocelot_vcap_bit sip_eq_dip, sport_eq_dport, seq_zero, tcp;
- enum ocelot_vcap_bit ttl, fragment, options, tcp_ack, tcp_urg;
- enum ocelot_vcap_bit tcp_fin, tcp_syn, tcp_rst, tcp_psh;
- struct ocelot_ace_frame_ipv4 *ipv4 = NULL;
- struct ocelot_ace_frame_ipv6 *ipv6 = NULL;
- struct ocelot_vcap_udp_tcp *sport, *dport;
- struct ocelot_vcap_ipv4 sip, dip;
- struct ocelot_vcap_u8 proto, ds;
- struct ocelot_vcap_u48 *ip_data;
-
- if (ace->type == OCELOT_ACE_TYPE_IPV4) {
- ipv4 = &ace->frame.ipv4;
- ttl = ipv4->ttl;
- fragment = ipv4->fragment;
- options = ipv4->options;
- proto = ipv4->proto;
- ds = ipv4->ds;
- ip_data = &ipv4->data;
- sip = ipv4->sip;
- dip = ipv4->dip;
- sport = &ipv4->sport;
- dport = &ipv4->dport;
- tcp_fin = ipv4->tcp_fin;
- tcp_syn = ipv4->tcp_syn;
- tcp_rst = ipv4->tcp_rst;
- tcp_psh = ipv4->tcp_psh;
- tcp_ack = ipv4->tcp_ack;
- tcp_urg = ipv4->tcp_urg;
- sip_eq_dip = ipv4->sip_eq_dip;
- sport_eq_dport = ipv4->sport_eq_dport;
- seq_zero = ipv4->seq_zero;
- } else {
- ipv6 = &ace->frame.ipv6;
- ttl = ipv6->ttl;
- fragment = OCELOT_VCAP_BIT_ANY;
- options = OCELOT_VCAP_BIT_ANY;
- proto = ipv6->proto;
- ds = ipv6->ds;
- ip_data = &ipv6->data;
- for (i = 0; i < 8; i++) {
- val = ipv6->sip.value[i + 8];
- msk = ipv6->sip.mask[i + 8];
- if (i < 4) {
- dip.value.addr[i] = val;
- dip.mask.addr[i] = msk;
- } else {
- sip.value.addr[i - 4] = val;
- sip.mask.addr[i - 4] = msk;
- }
- }
- sport = &ipv6->sport;
- dport = &ipv6->dport;
- tcp_fin = ipv6->tcp_fin;
- tcp_syn = ipv6->tcp_syn;
- tcp_rst = ipv6->tcp_rst;
- tcp_psh = ipv6->tcp_psh;
- tcp_ack = ipv6->tcp_ack;
- tcp_urg = ipv6->tcp_urg;
- sip_eq_dip = ipv6->sip_eq_dip;
- sport_eq_dport = ipv6->sport_eq_dport;
- seq_zero = ipv6->seq_zero;
- }
-
- VCAP_KEY_BIT_SET(IP4,
- ipv4 ? OCELOT_VCAP_BIT_1 : OCELOT_VCAP_BIT_0);
- VCAP_KEY_BIT_SET(L3_FRAGMENT, fragment);
- VCAP_KEY_ANY_SET(L3_FRAG_OFS_GT0);
- VCAP_KEY_BIT_SET(L3_OPTIONS, options);
- VCAP_KEY_BIT_SET(L3_TTL_GT0, ttl);
- VCAP_KEY_BYTES_SET(L3_TOS, ds.value, ds.mask);
- vcap_key_bytes_set(&data, IS2_HKO_L3_IP4_DIP, dip.value.addr,
- dip.mask.addr, 4);
- vcap_key_bytes_set(&data, IS2_HKO_L3_IP4_SIP, sip.value.addr,
- sip.mask.addr, 4);
- VCAP_KEY_BIT_SET(DIP_EQ_SIP, sip_eq_dip);
- val = proto.value[0];
- msk = proto.mask[0];
- type = IS2_TYPE_IP_UDP_TCP;
- if (msk == 0xff && (val == 6 || val == 17)) {
- /* UDP/TCP protocol match */
- tcp = (val == 6 ?
- OCELOT_VCAP_BIT_1 : OCELOT_VCAP_BIT_0);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_TCP, tcp);
- vcap_key_l4_port_set(&data,
- IS2_HKO_IP4_TCP_UDP_L4_DPORT,
- dport);
- vcap_key_l4_port_set(&data,
- IS2_HKO_IP4_TCP_UDP_L4_SPORT,
- sport);
- VCAP_KEY_ANY_SET(IP4_TCP_UDP_L4_RNG);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_SPORT_EQ_DPORT,
- sport_eq_dport);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_SEQUENCE_EQ0, seq_zero);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_FIN, tcp_fin);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_SYN, tcp_syn);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_RST, tcp_rst);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_PSH, tcp_psh);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_ACK, tcp_ack);
- VCAP_KEY_BIT_SET(IP4_TCP_UDP_L4_URG, tcp_urg);
- VCAP_KEY_ANY_SET(IP4_TCP_UDP_L4_1588_DOM);
- VCAP_KEY_ANY_SET(IP4_TCP_UDP_L4_1588_VER);
- } else {
- if (msk == 0) {
- /* Any IP protocol match */
- type_mask = IS2_TYPE_MASK_IP_ANY;
- } else {
- /* Non-UDP/TCP protocol match */
- type = IS2_TYPE_IP_OTHER;
- for (i = 0; i < 6; i++) {
- payload.value[i] = ip_data->value[i];
- payload.mask[i] = ip_data->mask[i];
- }
- }
- VCAP_KEY_BYTES_SET(IP4_OTHER_L3_PROTO, proto.value,
- proto.mask);
- VCAP_KEY_BYTES_SET(IP4_OTHER_L3_PAYLOAD, payload.value,
- payload.mask);
- }
- break;
- }
- case OCELOT_ACE_TYPE_ANY:
- default:
- type = 0;
- type_mask = 0;
- count = (vcap_is2.entry_width / 2);
- for (i = (IS2_HKO_PCP + IS2_HKL_PCP); i < count;
- i += ENTRY_WIDTH) {
- /* Clear entry data */
- vcap_key_set(&data, i, min(32u, count - i), 0, 0);
- }
- break;
- }
-
- VCAP_KEY_SET(TYPE, type, type_mask);
- is2_action_set(&data, ace->action);
- vcap_data_set(data.counter, data.counter_offset, vcap_is2.counter_width,
- ace->stats.pkts);
-
- /* Write row */
- vcap_entry2cache(ocelot, &data);
- vcap_action2cache(ocelot, &data);
- vcap_row_cmd(ocelot, row, VCAP_CMD_WRITE, VCAP_SEL_ALL);
-}
-
-static void is2_entry_get(struct ocelot_ace_rule *rule, int ix)
-{
- struct ocelot *op = rule->port->ocelot;
- struct vcap_data data;
- int row = (ix / 2);
- u32 cnt;
-
- vcap_row_cmd(op, row, VCAP_CMD_READ, VCAP_SEL_COUNTER);
- vcap_cache2action(op, &data);
- data.tg_sw = VCAP_TG_HALF;
- is2_data_get(&data, ix);
- cnt = vcap_data_get(data.counter, data.counter_offset,
- vcap_is2.counter_width);
-
- rule->stats.pkts = cnt;
-}
-
-static void ocelot_ace_rule_add(struct ocelot_acl_block *block,
- struct ocelot_ace_rule *rule)
-{
- struct ocelot_ace_rule *tmp;
- struct list_head *pos, *n;
-
- block->count++;
-
- if (list_empty(&block->rules)) {
- list_add(&rule->list, &block->rules);
- return;
- }
-
- list_for_each_safe(pos, n, &block->rules) {
- tmp = list_entry(pos, struct ocelot_ace_rule, list);
- if (rule->prio < tmp->prio)
- break;
- }
- list_add(&rule->list, pos->prev);
-}
-
-static int ocelot_ace_rule_get_index_id(struct ocelot_acl_block *block,
- struct ocelot_ace_rule *rule)
-{
- struct ocelot_ace_rule *tmp;
- int index = -1;
-
- list_for_each_entry(tmp, &block->rules, list) {
- ++index;
- if (rule->id == tmp->id)
- break;
- }
- return index;
-}
-
-static struct ocelot_ace_rule*
-ocelot_ace_rule_get_rule_index(struct ocelot_acl_block *block, int index)
-{
- struct ocelot_ace_rule *tmp;
- int i = 0;
-
- list_for_each_entry(tmp, &block->rules, list) {
- if (i == index)
- return tmp;
- ++i;
- }
-
- return NULL;
-}
-
-int ocelot_ace_rule_offload_add(struct ocelot_ace_rule *rule)
-{
- struct ocelot_ace_rule *ace;
- int i, index;
-
- /* Add rule to the linked list */
- ocelot_ace_rule_add(acl_block, rule);
-
- /* Get the index of the inserted rule */
- index = ocelot_ace_rule_get_index_id(acl_block, rule);
-
- /* Move down the rules to make place for the new rule */
- for (i = acl_block->count - 1; i > index; i--) {
- ace = ocelot_ace_rule_get_rule_index(acl_block, i);
- is2_entry_set(rule->port->ocelot, i, ace);
- }
-
- /* Now insert the new rule */
- is2_entry_set(rule->port->ocelot, index, rule);
- return 0;
-}
-
-static void ocelot_ace_rule_del(struct ocelot_acl_block *block,
- struct ocelot_ace_rule *rule)
-{
- struct ocelot_ace_rule *tmp;
- struct list_head *pos, *q;
-
- list_for_each_safe(pos, q, &block->rules) {
- tmp = list_entry(pos, struct ocelot_ace_rule, list);
- if (tmp->id == rule->id) {
- list_del(pos);
- kfree(tmp);
- }
- }
-
- block->count--;
-}
-
-int ocelot_ace_rule_offload_del(struct ocelot_ace_rule *rule)
-{
- struct ocelot_ace_rule del_ace;
- struct ocelot_ace_rule *ace;
- int i, index;
-
- memset(&del_ace, 0, sizeof(del_ace));
-
- /* Gets index of the rule */
- index = ocelot_ace_rule_get_index_id(acl_block, rule);
-
- /* Delete rule */
- ocelot_ace_rule_del(acl_block, rule);
-
- /* Move up all the blocks over the deleted rule */
- for (i = index; i < acl_block->count; i++) {
- ace = ocelot_ace_rule_get_rule_index(acl_block, i);
- is2_entry_set(rule->port->ocelot, i, ace);
- }
-
- /* Now delete the last rule, because it is duplicated */
- is2_entry_set(rule->port->ocelot, acl_block->count, &del_ace);
-
- return 0;
-}
-
-int ocelot_ace_rule_stats_update(struct ocelot_ace_rule *rule)
-{
- struct ocelot_ace_rule *tmp;
- int index;
-
- index = ocelot_ace_rule_get_index_id(acl_block, rule);
- is2_entry_get(rule, index);
-
- /* After we get the result we need to clear the counters */
- tmp = ocelot_ace_rule_get_rule_index(acl_block, index);
- tmp->stats.pkts = 0;
- is2_entry_set(rule->port->ocelot, index, tmp);
-
- return 0;
-}
-
-static struct ocelot_acl_block *ocelot_acl_block_create(struct ocelot *ocelot)
-{
- struct ocelot_acl_block *block;
-
- block = kzalloc(sizeof(*block), GFP_KERNEL);
- if (!block)
- return NULL;
-
- INIT_LIST_HEAD(&block->rules);
- block->count = 0;
- block->ocelot = ocelot;
-
- return block;
-}
-
-static void ocelot_acl_block_destroy(struct ocelot_acl_block *block)
-{
- kfree(block);
-}
-
-int ocelot_ace_init(struct ocelot *ocelot)
-{
- struct vcap_data data;
-
- memset(&data, 0, sizeof(data));
- vcap_entry2cache(ocelot, &data);
- ocelot_write(ocelot, vcap_is2.entry_count, S2_CORE_MV_CFG);
- vcap_cmd(ocelot, 0, VCAP_CMD_INITIALIZE, VCAP_SEL_ENTRY);
-
- vcap_action2cache(ocelot, &data);
- ocelot_write(ocelot, vcap_is2.action_count, S2_CORE_MV_CFG);
- vcap_cmd(ocelot, 0, VCAP_CMD_INITIALIZE,
- VCAP_SEL_ACTION | VCAP_SEL_COUNTER);
-
- /* Create a policer that will drop the frames for the cpu.
- * This policer will be used as action in the acl rules to drop
- * frames.
- */
- ocelot_write_gix(ocelot, 0x299, ANA_POL_MODE_CFG,
- OCELOT_POLICER_DISCARD);
- ocelot_write_gix(ocelot, 0x1, ANA_POL_PIR_CFG,
- OCELOT_POLICER_DISCARD);
- ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_PIR_STATE,
- OCELOT_POLICER_DISCARD);
- ocelot_write_gix(ocelot, 0x0, ANA_POL_CIR_CFG,
- OCELOT_POLICER_DISCARD);
- ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_CIR_STATE,
- OCELOT_POLICER_DISCARD);
-
- acl_block = ocelot_acl_block_create(ocelot);
-
- return 0;
-}
-
-void ocelot_ace_deinit(void)
-{
- ocelot_acl_block_destroy(acl_block);
-}