diff options
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_ace.c')
-rw-r--r-- | drivers/net/ethernet/mscc/ocelot_ace.c | 782 |
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); -} |