13c83654fSVladimir Oltean // SPDX-License-Identifier: (GPL-2.0 OR MIT) 23c83654fSVladimir Oltean /* Microsemi Ocelot Switch driver 33c83654fSVladimir Oltean * Copyright (c) 2019 Microsemi Corporation 43c83654fSVladimir Oltean */ 53c83654fSVladimir Oltean 63c83654fSVladimir Oltean #include <linux/iopoll.h> 73c83654fSVladimir Oltean #include <linux/proc_fs.h> 83c83654fSVladimir Oltean 93c83654fSVladimir Oltean #include <soc/mscc/ocelot_vcap.h> 103c83654fSVladimir Oltean #include "ocelot_police.h" 113c83654fSVladimir Oltean #include "ocelot_vcap.h" 123c83654fSVladimir Oltean 133c83654fSVladimir Oltean #define ENTRY_WIDTH 32 143c83654fSVladimir Oltean 153c83654fSVladimir Oltean enum vcap_sel { 163c83654fSVladimir Oltean VCAP_SEL_ENTRY = 0x1, 173c83654fSVladimir Oltean VCAP_SEL_ACTION = 0x2, 183c83654fSVladimir Oltean VCAP_SEL_COUNTER = 0x4, 193c83654fSVladimir Oltean VCAP_SEL_ALL = 0x7, 203c83654fSVladimir Oltean }; 213c83654fSVladimir Oltean 223c83654fSVladimir Oltean enum vcap_cmd { 233c83654fSVladimir Oltean VCAP_CMD_WRITE = 0, /* Copy from Cache to TCAM */ 243c83654fSVladimir Oltean VCAP_CMD_READ = 1, /* Copy from TCAM to Cache */ 253c83654fSVladimir Oltean VCAP_CMD_MOVE_UP = 2, /* Move <count> up */ 263c83654fSVladimir Oltean VCAP_CMD_MOVE_DOWN = 3, /* Move <count> down */ 273c83654fSVladimir Oltean VCAP_CMD_INITIALIZE = 4, /* Write all (from cache) */ 283c83654fSVladimir Oltean }; 293c83654fSVladimir Oltean 303c83654fSVladimir Oltean #define VCAP_ENTRY_WIDTH 12 /* Max entry width (32bit words) */ 313c83654fSVladimir Oltean #define VCAP_COUNTER_WIDTH 4 /* Max counter width (32bit words) */ 323c83654fSVladimir Oltean 333c83654fSVladimir Oltean struct vcap_data { 343c83654fSVladimir Oltean u32 entry[VCAP_ENTRY_WIDTH]; /* ENTRY_DAT */ 353c83654fSVladimir Oltean u32 mask[VCAP_ENTRY_WIDTH]; /* MASK_DAT */ 363c83654fSVladimir Oltean u32 action[VCAP_ENTRY_WIDTH]; /* ACTION_DAT */ 373c83654fSVladimir Oltean u32 counter[VCAP_COUNTER_WIDTH]; /* CNT_DAT */ 383c83654fSVladimir Oltean u32 tg; /* TG_DAT */ 393c83654fSVladimir Oltean u32 type; /* Action type */ 403c83654fSVladimir Oltean u32 tg_sw; /* Current type-group */ 413c83654fSVladimir Oltean u32 cnt; /* Current counter */ 423c83654fSVladimir Oltean u32 key_offset; /* Current entry offset */ 433c83654fSVladimir Oltean u32 action_offset; /* Current action offset */ 443c83654fSVladimir Oltean u32 counter_offset; /* Current counter offset */ 453c83654fSVladimir Oltean u32 tg_value; /* Current type-group value */ 463c83654fSVladimir Oltean u32 tg_mask; /* Current type-group mask */ 473c83654fSVladimir Oltean }; 483c83654fSVladimir Oltean 49c1c3993eSVladimir Oltean static u32 vcap_read_update_ctrl(struct ocelot *ocelot, 50c1c3993eSVladimir Oltean const struct vcap_props *vcap) 513c83654fSVladimir Oltean { 52c1c3993eSVladimir Oltean return ocelot_target_read(ocelot, vcap->target, VCAP_CORE_UPDATE_CTRL); 533c83654fSVladimir Oltean } 543c83654fSVladimir Oltean 55c1c3993eSVladimir Oltean static void vcap_cmd(struct ocelot *ocelot, const struct vcap_props *vcap, 56c1c3993eSVladimir Oltean u16 ix, int cmd, int sel) 573c83654fSVladimir Oltean { 58c1c3993eSVladimir Oltean u32 value = (VCAP_CORE_UPDATE_CTRL_UPDATE_CMD(cmd) | 59c1c3993eSVladimir Oltean VCAP_CORE_UPDATE_CTRL_UPDATE_ADDR(ix) | 60c1c3993eSVladimir Oltean VCAP_CORE_UPDATE_CTRL_UPDATE_SHOT); 613c83654fSVladimir Oltean 62c1c3993eSVladimir Oltean if ((sel & VCAP_SEL_ENTRY) && ix >= vcap->entry_count) 633c83654fSVladimir Oltean return; 643c83654fSVladimir Oltean 653c83654fSVladimir Oltean if (!(sel & VCAP_SEL_ENTRY)) 66c1c3993eSVladimir Oltean value |= VCAP_CORE_UPDATE_CTRL_UPDATE_ENTRY_DIS; 673c83654fSVladimir Oltean 683c83654fSVladimir Oltean if (!(sel & VCAP_SEL_ACTION)) 69c1c3993eSVladimir Oltean value |= VCAP_CORE_UPDATE_CTRL_UPDATE_ACTION_DIS; 703c83654fSVladimir Oltean 713c83654fSVladimir Oltean if (!(sel & VCAP_SEL_COUNTER)) 72c1c3993eSVladimir Oltean value |= VCAP_CORE_UPDATE_CTRL_UPDATE_CNT_DIS; 733c83654fSVladimir Oltean 74c1c3993eSVladimir Oltean ocelot_target_write(ocelot, vcap->target, value, VCAP_CORE_UPDATE_CTRL); 75c1c3993eSVladimir Oltean 76c1c3993eSVladimir Oltean read_poll_timeout(vcap_read_update_ctrl, value, 77c1c3993eSVladimir Oltean (value & VCAP_CORE_UPDATE_CTRL_UPDATE_SHOT) == 0, 78c1c3993eSVladimir Oltean 10, 100000, false, ocelot, vcap); 793c83654fSVladimir Oltean } 803c83654fSVladimir Oltean 813c83654fSVladimir Oltean /* Convert from 0-based row to VCAP entry row and run command */ 82c1c3993eSVladimir Oltean static void vcap_row_cmd(struct ocelot *ocelot, const struct vcap_props *vcap, 83c1c3993eSVladimir Oltean u32 row, int cmd, int sel) 843c83654fSVladimir Oltean { 85c1c3993eSVladimir Oltean vcap_cmd(ocelot, vcap, vcap->entry_count - row - 1, cmd, sel); 863c83654fSVladimir Oltean } 873c83654fSVladimir Oltean 88c1c3993eSVladimir Oltean static void vcap_entry2cache(struct ocelot *ocelot, 89c1c3993eSVladimir Oltean const struct vcap_props *vcap, 90c1c3993eSVladimir Oltean struct vcap_data *data) 913c83654fSVladimir Oltean { 923c83654fSVladimir Oltean u32 entry_words, i; 933c83654fSVladimir Oltean 94c1c3993eSVladimir Oltean entry_words = DIV_ROUND_UP(vcap->entry_width, ENTRY_WIDTH); 953c83654fSVladimir Oltean 963c83654fSVladimir Oltean for (i = 0; i < entry_words; i++) { 97c1c3993eSVladimir Oltean ocelot_target_write_rix(ocelot, vcap->target, data->entry[i], 98c1c3993eSVladimir Oltean VCAP_CACHE_ENTRY_DAT, i); 99c1c3993eSVladimir Oltean ocelot_target_write_rix(ocelot, vcap->target, ~data->mask[i], 100c1c3993eSVladimir Oltean VCAP_CACHE_MASK_DAT, i); 1013c83654fSVladimir Oltean } 102c1c3993eSVladimir Oltean ocelot_target_write(ocelot, vcap->target, data->tg, VCAP_CACHE_TG_DAT); 1033c83654fSVladimir Oltean } 1043c83654fSVladimir Oltean 105c1c3993eSVladimir Oltean static void vcap_cache2entry(struct ocelot *ocelot, 106c1c3993eSVladimir Oltean const struct vcap_props *vcap, 107c1c3993eSVladimir Oltean struct vcap_data *data) 1083c83654fSVladimir Oltean { 1093c83654fSVladimir Oltean u32 entry_words, i; 1103c83654fSVladimir Oltean 111c1c3993eSVladimir Oltean entry_words = DIV_ROUND_UP(vcap->entry_width, ENTRY_WIDTH); 1123c83654fSVladimir Oltean 1133c83654fSVladimir Oltean for (i = 0; i < entry_words; i++) { 114c1c3993eSVladimir Oltean data->entry[i] = ocelot_target_read_rix(ocelot, vcap->target, 115c1c3993eSVladimir Oltean VCAP_CACHE_ENTRY_DAT, i); 1163c83654fSVladimir Oltean // Invert mask 117c1c3993eSVladimir Oltean data->mask[i] = ~ocelot_target_read_rix(ocelot, vcap->target, 118c1c3993eSVladimir Oltean VCAP_CACHE_MASK_DAT, i); 1193c83654fSVladimir Oltean } 120c1c3993eSVladimir Oltean data->tg = ocelot_target_read(ocelot, vcap->target, VCAP_CACHE_TG_DAT); 1213c83654fSVladimir Oltean } 1223c83654fSVladimir Oltean 123c1c3993eSVladimir Oltean static void vcap_action2cache(struct ocelot *ocelot, 124c1c3993eSVladimir Oltean const struct vcap_props *vcap, 125c1c3993eSVladimir Oltean struct vcap_data *data) 1263c83654fSVladimir Oltean { 1273c83654fSVladimir Oltean u32 action_words, mask; 1283c83654fSVladimir Oltean int i, width; 1293c83654fSVladimir Oltean 1303c83654fSVladimir Oltean /* Encode action type */ 131c1c3993eSVladimir Oltean width = vcap->action_type_width; 1323c83654fSVladimir Oltean if (width) { 1333c83654fSVladimir Oltean mask = GENMASK(width, 0); 1343c83654fSVladimir Oltean data->action[0] = ((data->action[0] & ~mask) | data->type); 1353c83654fSVladimir Oltean } 1363c83654fSVladimir Oltean 137c1c3993eSVladimir Oltean action_words = DIV_ROUND_UP(vcap->action_width, ENTRY_WIDTH); 1383c83654fSVladimir Oltean 1393c83654fSVladimir Oltean for (i = 0; i < action_words; i++) 140c1c3993eSVladimir Oltean ocelot_target_write_rix(ocelot, vcap->target, data->action[i], 141c1c3993eSVladimir Oltean VCAP_CACHE_ACTION_DAT, i); 1423c83654fSVladimir Oltean 143c1c3993eSVladimir Oltean for (i = 0; i < vcap->counter_words; i++) 144c1c3993eSVladimir Oltean ocelot_target_write_rix(ocelot, vcap->target, data->counter[i], 145c1c3993eSVladimir Oltean VCAP_CACHE_CNT_DAT, i); 1463c83654fSVladimir Oltean } 1473c83654fSVladimir Oltean 148c1c3993eSVladimir Oltean static void vcap_cache2action(struct ocelot *ocelot, 149c1c3993eSVladimir Oltean const struct vcap_props *vcap, 150c1c3993eSVladimir Oltean struct vcap_data *data) 1513c83654fSVladimir Oltean { 1523c83654fSVladimir Oltean u32 action_words; 1533c83654fSVladimir Oltean int i, width; 1543c83654fSVladimir Oltean 155c1c3993eSVladimir Oltean action_words = DIV_ROUND_UP(vcap->action_width, ENTRY_WIDTH); 1563c83654fSVladimir Oltean 1573c83654fSVladimir Oltean for (i = 0; i < action_words; i++) 158c1c3993eSVladimir Oltean data->action[i] = ocelot_target_read_rix(ocelot, vcap->target, 159c1c3993eSVladimir Oltean VCAP_CACHE_ACTION_DAT, 1603c83654fSVladimir Oltean i); 1613c83654fSVladimir Oltean 162c1c3993eSVladimir Oltean for (i = 0; i < vcap->counter_words; i++) 163c1c3993eSVladimir Oltean data->counter[i] = ocelot_target_read_rix(ocelot, vcap->target, 164c1c3993eSVladimir Oltean VCAP_CACHE_CNT_DAT, 165c1c3993eSVladimir Oltean i); 1663c83654fSVladimir Oltean 1673c83654fSVladimir Oltean /* Extract action type */ 168c1c3993eSVladimir Oltean width = vcap->action_type_width; 1693c83654fSVladimir Oltean data->type = (width ? (data->action[0] & GENMASK(width, 0)) : 0); 1703c83654fSVladimir Oltean } 1713c83654fSVladimir Oltean 1723c83654fSVladimir Oltean /* Calculate offsets for entry */ 173c1c3993eSVladimir Oltean static void vcap_data_offset_get(const struct vcap_props *vcap, 174c1c3993eSVladimir Oltean struct vcap_data *data, int ix) 1753c83654fSVladimir Oltean { 17664294263SVladimir Oltean int num_subwords_per_entry, num_subwords_per_action; 17764294263SVladimir Oltean int i, col, offset, num_entries_per_row, base; 178c1c3993eSVladimir Oltean u32 width = vcap->tg_width; 1793c83654fSVladimir Oltean 180e6ae7c50SXiaoliang Yang switch (data->tg_sw) { 181e6ae7c50SXiaoliang Yang case VCAP_TG_FULL: 1825963083aSVladimir Oltean num_entries_per_row = 1; 183e6ae7c50SXiaoliang Yang break; 184e6ae7c50SXiaoliang Yang case VCAP_TG_HALF: 1855963083aSVladimir Oltean num_entries_per_row = 2; 186e6ae7c50SXiaoliang Yang break; 187e6ae7c50SXiaoliang Yang case VCAP_TG_QUARTER: 1885963083aSVladimir Oltean num_entries_per_row = 4; 189e6ae7c50SXiaoliang Yang break; 190e6ae7c50SXiaoliang Yang default: 191e6ae7c50SXiaoliang Yang return; 192e6ae7c50SXiaoliang Yang } 193e6ae7c50SXiaoliang Yang 1945963083aSVladimir Oltean col = (ix % num_entries_per_row); 19564294263SVladimir Oltean num_subwords_per_entry = (vcap->sw_count / num_entries_per_row); 19664294263SVladimir Oltean base = (vcap->sw_count - col * num_subwords_per_entry - 19764294263SVladimir Oltean num_subwords_per_entry); 1983c83654fSVladimir Oltean data->tg_value = 0; 1993c83654fSVladimir Oltean data->tg_mask = 0; 20064294263SVladimir Oltean for (i = 0; i < num_subwords_per_entry; i++) { 2013c83654fSVladimir Oltean offset = ((base + i) * width); 2023c83654fSVladimir Oltean data->tg_value |= (data->tg_sw << offset); 2033c83654fSVladimir Oltean data->tg_mask |= GENMASK(offset + width - 1, offset); 2043c83654fSVladimir Oltean } 2053c83654fSVladimir Oltean 2063c83654fSVladimir Oltean /* Calculate key/action/counter offsets */ 2075963083aSVladimir Oltean col = (num_entries_per_row - col - 1); 208c1c3993eSVladimir Oltean data->key_offset = (base * vcap->entry_width) / vcap->sw_count; 20964294263SVladimir Oltean data->counter_offset = (num_subwords_per_entry * col * 21064294263SVladimir Oltean vcap->counter_width); 2113c83654fSVladimir Oltean i = data->type; 212c1c3993eSVladimir Oltean width = vcap->action_table[i].width; 21364294263SVladimir Oltean num_subwords_per_action = vcap->action_table[i].count; 21464294263SVladimir Oltean data->action_offset = ((num_subwords_per_action * col * width) / 21564294263SVladimir Oltean num_entries_per_row); 21664294263SVladimir Oltean data->action_offset += vcap->action_type_width; 2173c83654fSVladimir Oltean } 2183c83654fSVladimir Oltean 2193c83654fSVladimir Oltean static void vcap_data_set(u32 *data, u32 offset, u32 len, u32 value) 2203c83654fSVladimir Oltean { 2213c83654fSVladimir Oltean u32 i, v, m; 2223c83654fSVladimir Oltean 2233c83654fSVladimir Oltean for (i = 0; i < len; i++, offset++) { 2243c83654fSVladimir Oltean v = data[offset / ENTRY_WIDTH]; 2253c83654fSVladimir Oltean m = (1 << (offset % ENTRY_WIDTH)); 2263c83654fSVladimir Oltean if (value & (1 << i)) 2273c83654fSVladimir Oltean v |= m; 2283c83654fSVladimir Oltean else 2293c83654fSVladimir Oltean v &= ~m; 2303c83654fSVladimir Oltean data[offset / ENTRY_WIDTH] = v; 2313c83654fSVladimir Oltean } 2323c83654fSVladimir Oltean } 2333c83654fSVladimir Oltean 2343c83654fSVladimir Oltean static u32 vcap_data_get(u32 *data, u32 offset, u32 len) 2353c83654fSVladimir Oltean { 2363c83654fSVladimir Oltean u32 i, v, m, value = 0; 2373c83654fSVladimir Oltean 2383c83654fSVladimir Oltean for (i = 0; i < len; i++, offset++) { 2393c83654fSVladimir Oltean v = data[offset / ENTRY_WIDTH]; 2403c83654fSVladimir Oltean m = (1 << (offset % ENTRY_WIDTH)); 2413c83654fSVladimir Oltean if (v & m) 2423c83654fSVladimir Oltean value |= (1 << i); 2433c83654fSVladimir Oltean } 2443c83654fSVladimir Oltean return value; 2453c83654fSVladimir Oltean } 2463c83654fSVladimir Oltean 2473c83654fSVladimir Oltean static void vcap_key_field_set(struct vcap_data *data, u32 offset, u32 width, 2483c83654fSVladimir Oltean u32 value, u32 mask) 2493c83654fSVladimir Oltean { 2503c83654fSVladimir Oltean vcap_data_set(data->entry, offset + data->key_offset, width, value); 2513c83654fSVladimir Oltean vcap_data_set(data->mask, offset + data->key_offset, width, mask); 2523c83654fSVladimir Oltean } 2533c83654fSVladimir Oltean 254c1c3993eSVladimir Oltean static void vcap_key_set(const struct vcap_props *vcap, struct vcap_data *data, 255c1c3993eSVladimir Oltean int field, u32 value, u32 mask) 2563c83654fSVladimir Oltean { 257c1c3993eSVladimir Oltean u32 offset = vcap->keys[field].offset; 258c1c3993eSVladimir Oltean u32 length = vcap->keys[field].length; 2593c83654fSVladimir Oltean 2603c83654fSVladimir Oltean vcap_key_field_set(data, offset, length, value, mask); 2613c83654fSVladimir Oltean } 2623c83654fSVladimir Oltean 263c1c3993eSVladimir Oltean static void vcap_key_bytes_set(const struct vcap_props *vcap, 264c1c3993eSVladimir Oltean struct vcap_data *data, int field, 2653c83654fSVladimir Oltean u8 *val, u8 *msk) 2663c83654fSVladimir Oltean { 267c1c3993eSVladimir Oltean u32 offset = vcap->keys[field].offset; 268c1c3993eSVladimir Oltean u32 count = vcap->keys[field].length; 2693c83654fSVladimir Oltean u32 i, j, n = 0, value = 0, mask = 0; 2703c83654fSVladimir Oltean 2713c83654fSVladimir Oltean WARN_ON(count % 8); 2723c83654fSVladimir Oltean 2733c83654fSVladimir Oltean /* Data wider than 32 bits are split up in chunks of maximum 32 bits. 2743c83654fSVladimir Oltean * The 32 LSB of the data are written to the 32 MSB of the TCAM. 2753c83654fSVladimir Oltean */ 2763c83654fSVladimir Oltean offset += count; 2773c83654fSVladimir Oltean count /= 8; 2783c83654fSVladimir Oltean 2793c83654fSVladimir Oltean for (i = 0; i < count; i++) { 2803c83654fSVladimir Oltean j = (count - i - 1); 2813c83654fSVladimir Oltean value += (val[j] << n); 2823c83654fSVladimir Oltean mask += (msk[j] << n); 2833c83654fSVladimir Oltean n += 8; 2843c83654fSVladimir Oltean if (n == ENTRY_WIDTH || (i + 1) == count) { 2853c83654fSVladimir Oltean offset -= n; 2863c83654fSVladimir Oltean vcap_key_field_set(data, offset, n, value, mask); 2873c83654fSVladimir Oltean n = 0; 2883c83654fSVladimir Oltean value = 0; 2893c83654fSVladimir Oltean mask = 0; 2903c83654fSVladimir Oltean } 2913c83654fSVladimir Oltean } 2923c83654fSVladimir Oltean } 2933c83654fSVladimir Oltean 294c1c3993eSVladimir Oltean static void vcap_key_l4_port_set(const struct vcap_props *vcap, 295c1c3993eSVladimir Oltean struct vcap_data *data, int field, 2963c83654fSVladimir Oltean struct ocelot_vcap_udp_tcp *port) 2973c83654fSVladimir Oltean { 298c1c3993eSVladimir Oltean u32 offset = vcap->keys[field].offset; 299c1c3993eSVladimir Oltean u32 length = vcap->keys[field].length; 3003c83654fSVladimir Oltean 3013c83654fSVladimir Oltean WARN_ON(length != 16); 3023c83654fSVladimir Oltean 3033c83654fSVladimir Oltean vcap_key_field_set(data, offset, length, port->value, port->mask); 3043c83654fSVladimir Oltean } 3053c83654fSVladimir Oltean 306c1c3993eSVladimir Oltean static void vcap_key_bit_set(const struct vcap_props *vcap, 307c1c3993eSVladimir Oltean struct vcap_data *data, int field, 3083c83654fSVladimir Oltean enum ocelot_vcap_bit val) 3093c83654fSVladimir Oltean { 3103c83654fSVladimir Oltean u32 value = (val == OCELOT_VCAP_BIT_1 ? 1 : 0); 3113c83654fSVladimir Oltean u32 msk = (val == OCELOT_VCAP_BIT_ANY ? 0 : 1); 312c1c3993eSVladimir Oltean u32 offset = vcap->keys[field].offset; 313c1c3993eSVladimir Oltean u32 length = vcap->keys[field].length; 3143c83654fSVladimir Oltean 3153c83654fSVladimir Oltean WARN_ON(length != 1); 3163c83654fSVladimir Oltean 3173c83654fSVladimir Oltean vcap_key_field_set(data, offset, length, value, msk); 3183c83654fSVladimir Oltean } 3193c83654fSVladimir Oltean 320c1c3993eSVladimir Oltean static void vcap_action_set(const struct vcap_props *vcap, 321c1c3993eSVladimir Oltean struct vcap_data *data, int field, u32 value) 3223c83654fSVladimir Oltean { 323c1c3993eSVladimir Oltean int offset = vcap->actions[field].offset; 324c1c3993eSVladimir Oltean int length = vcap->actions[field].length; 3253c83654fSVladimir Oltean 3263c83654fSVladimir Oltean vcap_data_set(data->action, offset + data->action_offset, length, 3273c83654fSVladimir Oltean value); 3283c83654fSVladimir Oltean } 3293c83654fSVladimir Oltean 3303c83654fSVladimir Oltean static void is2_action_set(struct ocelot *ocelot, struct vcap_data *data, 331aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 3323c83654fSVladimir Oltean { 333c1c3993eSVladimir Oltean const struct vcap_props *vcap = &ocelot->vcap[VCAP_IS2]; 334ea9d1f30SVladimir Oltean struct ocelot_vcap_action *a = &filter->action; 335c1c3993eSVladimir Oltean 336ea9d1f30SVladimir Oltean vcap_action_set(vcap, data, VCAP_IS2_ACT_MASK_MODE, a->mask_mode); 337ea9d1f30SVladimir Oltean vcap_action_set(vcap, data, VCAP_IS2_ACT_PORT_MASK, a->port_mask); 338ea9d1f30SVladimir Oltean vcap_action_set(vcap, data, VCAP_IS2_ACT_POLICE_ENA, a->police_ena); 339ea9d1f30SVladimir Oltean vcap_action_set(vcap, data, VCAP_IS2_ACT_POLICE_IDX, a->pol_ix); 340ea9d1f30SVladimir Oltean vcap_action_set(vcap, data, VCAP_IS2_ACT_CPU_QU_NUM, a->cpu_qu_num); 341ea9d1f30SVladimir Oltean vcap_action_set(vcap, data, VCAP_IS2_ACT_CPU_COPY_ENA, a->cpu_copy_ena); 3423c83654fSVladimir Oltean } 3433c83654fSVladimir Oltean 3443c83654fSVladimir Oltean static void is2_entry_set(struct ocelot *ocelot, int ix, 345aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 3463c83654fSVladimir Oltean { 347c1c3993eSVladimir Oltean const struct vcap_props *vcap = &ocelot->vcap[VCAP_IS2]; 348aae4e500SVladimir Oltean struct ocelot_vcap_key_vlan *tag = &filter->vlan; 3493c83654fSVladimir Oltean u32 val, msk, type, type_mask = 0xf, i, count; 3503c83654fSVladimir Oltean struct ocelot_vcap_u64 payload; 3513c83654fSVladimir Oltean struct vcap_data data; 3523c83654fSVladimir Oltean int row = (ix / 2); 3533c83654fSVladimir Oltean 3543c83654fSVladimir Oltean memset(&payload, 0, sizeof(payload)); 3553c83654fSVladimir Oltean memset(&data, 0, sizeof(data)); 3563c83654fSVladimir Oltean 3573c83654fSVladimir Oltean /* Read row */ 358c1c3993eSVladimir Oltean vcap_row_cmd(ocelot, vcap, row, VCAP_CMD_READ, VCAP_SEL_ALL); 359c1c3993eSVladimir Oltean vcap_cache2entry(ocelot, vcap, &data); 360c1c3993eSVladimir Oltean vcap_cache2action(ocelot, vcap, &data); 3613c83654fSVladimir Oltean 3623c83654fSVladimir Oltean data.tg_sw = VCAP_TG_HALF; 363c1c3993eSVladimir Oltean vcap_data_offset_get(vcap, &data, ix); 3643c83654fSVladimir Oltean data.tg = (data.tg & ~data.tg_mask); 365aae4e500SVladimir Oltean if (filter->prio != 0) 3663c83654fSVladimir Oltean data.tg |= data.tg_value; 3673c83654fSVladimir Oltean 3683c83654fSVladimir Oltean data.type = IS2_ACTION_TYPE_NORMAL; 3693c83654fSVladimir Oltean 370c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_PAG, 0, 0); 371c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_IGR_PORT_MASK, 0, 372aae4e500SVladimir Oltean ~filter->ingress_port_mask); 373c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_FIRST, OCELOT_VCAP_BIT_ANY); 374c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_HOST_MATCH, 3753c83654fSVladimir Oltean OCELOT_VCAP_BIT_ANY); 376c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L2_MC, filter->dmac_mc); 377c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L2_BC, filter->dmac_bc); 378c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_VLAN_TAGGED, tag->tagged); 379c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_VID, 3803c83654fSVladimir Oltean tag->vid.value, tag->vid.mask); 381c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_PCP, 3823c83654fSVladimir Oltean tag->pcp.value[0], tag->pcp.mask[0]); 383c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_DEI, tag->dei); 3843c83654fSVladimir Oltean 385aae4e500SVladimir Oltean switch (filter->key_type) { 386aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_ETYPE: { 387aae4e500SVladimir Oltean struct ocelot_vcap_key_etype *etype = &filter->key.etype; 3883c83654fSVladimir Oltean 3893c83654fSVladimir Oltean type = IS2_TYPE_ETYPE; 390c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L2_DMAC, 3913c83654fSVladimir Oltean etype->dmac.value, etype->dmac.mask); 392c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L2_SMAC, 3933c83654fSVladimir Oltean etype->smac.value, etype->smac.mask); 394c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_MAC_ETYPE_ETYPE, 3953c83654fSVladimir Oltean etype->etype.value, etype->etype.mask); 3963c83654fSVladimir Oltean /* Clear unused bits */ 397c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD0, 3983c83654fSVladimir Oltean 0, 0); 399c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD1, 4003c83654fSVladimir Oltean 0, 0); 401c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD2, 4023c83654fSVladimir Oltean 0, 0); 403c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, 4043c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ETYPE_L2_PAYLOAD0, 4053c83654fSVladimir Oltean etype->data.value, etype->data.mask); 4063c83654fSVladimir Oltean break; 4073c83654fSVladimir Oltean } 408aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_LLC: { 409aae4e500SVladimir Oltean struct ocelot_vcap_key_llc *llc = &filter->key.llc; 4103c83654fSVladimir Oltean 4113c83654fSVladimir Oltean type = IS2_TYPE_LLC; 412c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L2_DMAC, 4133c83654fSVladimir Oltean llc->dmac.value, llc->dmac.mask); 414c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L2_SMAC, 4153c83654fSVladimir Oltean llc->smac.value, llc->smac.mask); 4163c83654fSVladimir Oltean for (i = 0; i < 4; i++) { 4173c83654fSVladimir Oltean payload.value[i] = llc->llc.value[i]; 4183c83654fSVladimir Oltean payload.mask[i] = llc->llc.mask[i]; 4193c83654fSVladimir Oltean } 420c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_MAC_LLC_L2_LLC, 4213c83654fSVladimir Oltean payload.value, payload.mask); 4223c83654fSVladimir Oltean break; 4233c83654fSVladimir Oltean } 424aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_SNAP: { 425aae4e500SVladimir Oltean struct ocelot_vcap_key_snap *snap = &filter->key.snap; 4263c83654fSVladimir Oltean 4273c83654fSVladimir Oltean type = IS2_TYPE_SNAP; 428c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L2_DMAC, 4293c83654fSVladimir Oltean snap->dmac.value, snap->dmac.mask); 430c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L2_SMAC, 4313c83654fSVladimir Oltean snap->smac.value, snap->smac.mask); 432c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_MAC_SNAP_L2_SNAP, 433aae4e500SVladimir Oltean filter->key.snap.snap.value, 434aae4e500SVladimir Oltean filter->key.snap.snap.mask); 4353c83654fSVladimir Oltean break; 4363c83654fSVladimir Oltean } 437aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_ARP: { 438aae4e500SVladimir Oltean struct ocelot_vcap_key_arp *arp = &filter->key.arp; 4393c83654fSVladimir Oltean 4403c83654fSVladimir Oltean type = IS2_TYPE_ARP; 441c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_MAC_ARP_SMAC, 4423c83654fSVladimir Oltean arp->smac.value, arp->smac.mask); 443c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 4443c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_ADDR_SPACE_OK, 4453c83654fSVladimir Oltean arp->ethernet); 446c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 4473c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_PROTO_SPACE_OK, 4483c83654fSVladimir Oltean arp->ip); 449c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 4503c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_LEN_OK, 4513c83654fSVladimir Oltean arp->length); 452c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 4533c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_TARGET_MATCH, 4543c83654fSVladimir Oltean arp->dmac_match); 455c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 4563c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_SENDER_MATCH, 4573c83654fSVladimir Oltean arp->smac_match); 458c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 4593c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_OPCODE_UNKNOWN, 4603c83654fSVladimir Oltean arp->unknown); 4613c83654fSVladimir Oltean 4623c83654fSVladimir Oltean /* OPCODE is inverse, bit 0 is reply flag, bit 1 is RARP flag */ 4633c83654fSVladimir Oltean val = ((arp->req == OCELOT_VCAP_BIT_0 ? 1 : 0) | 4643c83654fSVladimir Oltean (arp->arp == OCELOT_VCAP_BIT_0 ? 2 : 0)); 4653c83654fSVladimir Oltean msk = ((arp->req == OCELOT_VCAP_BIT_ANY ? 0 : 1) | 4663c83654fSVladimir Oltean (arp->arp == OCELOT_VCAP_BIT_ANY ? 0 : 2)); 467c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_MAC_ARP_OPCODE, 4683c83654fSVladimir Oltean val, msk); 469c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, 4703c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_L3_IP4_DIP, 4713c83654fSVladimir Oltean arp->dip.value.addr, arp->dip.mask.addr); 472c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, 4733c83654fSVladimir Oltean VCAP_IS2_HK_MAC_ARP_L3_IP4_SIP, 4743c83654fSVladimir Oltean arp->sip.value.addr, arp->sip.mask.addr); 475c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_MAC_ARP_DIP_EQ_SIP, 4763c83654fSVladimir Oltean 0, 0); 4773c83654fSVladimir Oltean break; 4783c83654fSVladimir Oltean } 479aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_IPV4: 480aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_IPV6: { 4813c83654fSVladimir Oltean enum ocelot_vcap_bit sip_eq_dip, sport_eq_dport, seq_zero, tcp; 4823c83654fSVladimir Oltean enum ocelot_vcap_bit ttl, fragment, options, tcp_ack, tcp_urg; 4833c83654fSVladimir Oltean enum ocelot_vcap_bit tcp_fin, tcp_syn, tcp_rst, tcp_psh; 484aae4e500SVladimir Oltean struct ocelot_vcap_key_ipv4 *ipv4 = NULL; 485aae4e500SVladimir Oltean struct ocelot_vcap_key_ipv6 *ipv6 = NULL; 4863c83654fSVladimir Oltean struct ocelot_vcap_udp_tcp *sport, *dport; 4873c83654fSVladimir Oltean struct ocelot_vcap_ipv4 sip, dip; 4883c83654fSVladimir Oltean struct ocelot_vcap_u8 proto, ds; 4893c83654fSVladimir Oltean struct ocelot_vcap_u48 *ip_data; 4903c83654fSVladimir Oltean 491aae4e500SVladimir Oltean if (filter->key_type == OCELOT_VCAP_KEY_IPV4) { 492aae4e500SVladimir Oltean ipv4 = &filter->key.ipv4; 4933c83654fSVladimir Oltean ttl = ipv4->ttl; 4943c83654fSVladimir Oltean fragment = ipv4->fragment; 4953c83654fSVladimir Oltean options = ipv4->options; 4963c83654fSVladimir Oltean proto = ipv4->proto; 4973c83654fSVladimir Oltean ds = ipv4->ds; 4983c83654fSVladimir Oltean ip_data = &ipv4->data; 4993c83654fSVladimir Oltean sip = ipv4->sip; 5003c83654fSVladimir Oltean dip = ipv4->dip; 5013c83654fSVladimir Oltean sport = &ipv4->sport; 5023c83654fSVladimir Oltean dport = &ipv4->dport; 5033c83654fSVladimir Oltean tcp_fin = ipv4->tcp_fin; 5043c83654fSVladimir Oltean tcp_syn = ipv4->tcp_syn; 5053c83654fSVladimir Oltean tcp_rst = ipv4->tcp_rst; 5063c83654fSVladimir Oltean tcp_psh = ipv4->tcp_psh; 5073c83654fSVladimir Oltean tcp_ack = ipv4->tcp_ack; 5083c83654fSVladimir Oltean tcp_urg = ipv4->tcp_urg; 5093c83654fSVladimir Oltean sip_eq_dip = ipv4->sip_eq_dip; 5103c83654fSVladimir Oltean sport_eq_dport = ipv4->sport_eq_dport; 5113c83654fSVladimir Oltean seq_zero = ipv4->seq_zero; 5123c83654fSVladimir Oltean } else { 513aae4e500SVladimir Oltean ipv6 = &filter->key.ipv6; 5143c83654fSVladimir Oltean ttl = ipv6->ttl; 5153c83654fSVladimir Oltean fragment = OCELOT_VCAP_BIT_ANY; 5163c83654fSVladimir Oltean options = OCELOT_VCAP_BIT_ANY; 5173c83654fSVladimir Oltean proto = ipv6->proto; 5183c83654fSVladimir Oltean ds = ipv6->ds; 5193c83654fSVladimir Oltean ip_data = &ipv6->data; 5203c83654fSVladimir Oltean for (i = 0; i < 8; i++) { 5213c83654fSVladimir Oltean val = ipv6->sip.value[i + 8]; 5223c83654fSVladimir Oltean msk = ipv6->sip.mask[i + 8]; 5233c83654fSVladimir Oltean if (i < 4) { 5243c83654fSVladimir Oltean dip.value.addr[i] = val; 5253c83654fSVladimir Oltean dip.mask.addr[i] = msk; 5263c83654fSVladimir Oltean } else { 5273c83654fSVladimir Oltean sip.value.addr[i - 4] = val; 5283c83654fSVladimir Oltean sip.mask.addr[i - 4] = msk; 5293c83654fSVladimir Oltean } 5303c83654fSVladimir Oltean } 5313c83654fSVladimir Oltean sport = &ipv6->sport; 5323c83654fSVladimir Oltean dport = &ipv6->dport; 5333c83654fSVladimir Oltean tcp_fin = ipv6->tcp_fin; 5343c83654fSVladimir Oltean tcp_syn = ipv6->tcp_syn; 5353c83654fSVladimir Oltean tcp_rst = ipv6->tcp_rst; 5363c83654fSVladimir Oltean tcp_psh = ipv6->tcp_psh; 5373c83654fSVladimir Oltean tcp_ack = ipv6->tcp_ack; 5383c83654fSVladimir Oltean tcp_urg = ipv6->tcp_urg; 5393c83654fSVladimir Oltean sip_eq_dip = ipv6->sip_eq_dip; 5403c83654fSVladimir Oltean sport_eq_dport = ipv6->sport_eq_dport; 5413c83654fSVladimir Oltean seq_zero = ipv6->seq_zero; 5423c83654fSVladimir Oltean } 5433c83654fSVladimir Oltean 544c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_IP4, 5453c83654fSVladimir Oltean ipv4 ? OCELOT_VCAP_BIT_1 : OCELOT_VCAP_BIT_0); 546c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L3_FRAGMENT, 5473c83654fSVladimir Oltean fragment); 548c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_L3_FRAG_OFS_GT0, 0, 0); 549c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L3_OPTIONS, 5503c83654fSVladimir Oltean options); 551c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_IP4_L3_TTL_GT0, 5523c83654fSVladimir Oltean ttl); 553c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L3_TOS, 5543c83654fSVladimir Oltean ds.value, ds.mask); 555c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L3_IP4_DIP, 5563c83654fSVladimir Oltean dip.value.addr, dip.mask.addr); 557c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, VCAP_IS2_HK_L3_IP4_SIP, 5583c83654fSVladimir Oltean sip.value.addr, sip.mask.addr); 559c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_DIP_EQ_SIP, 5603c83654fSVladimir Oltean sip_eq_dip); 5613c83654fSVladimir Oltean val = proto.value[0]; 5623c83654fSVladimir Oltean msk = proto.mask[0]; 5633c83654fSVladimir Oltean type = IS2_TYPE_IP_UDP_TCP; 5643c83654fSVladimir Oltean if (msk == 0xff && (val == 6 || val == 17)) { 5653c83654fSVladimir Oltean /* UDP/TCP protocol match */ 5663c83654fSVladimir Oltean tcp = (val == 6 ? 5673c83654fSVladimir Oltean OCELOT_VCAP_BIT_1 : OCELOT_VCAP_BIT_0); 568c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_TCP, tcp); 569c1c3993eSVladimir Oltean vcap_key_l4_port_set(vcap, &data, 5703c83654fSVladimir Oltean VCAP_IS2_HK_L4_DPORT, dport); 571c1c3993eSVladimir Oltean vcap_key_l4_port_set(vcap, &data, 5723c83654fSVladimir Oltean VCAP_IS2_HK_L4_SPORT, sport); 573c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_L4_RNG, 0, 0); 574c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 5753c83654fSVladimir Oltean VCAP_IS2_HK_L4_SPORT_EQ_DPORT, 5763c83654fSVladimir Oltean sport_eq_dport); 577c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, 5783c83654fSVladimir Oltean VCAP_IS2_HK_L4_SEQUENCE_EQ0, 5793c83654fSVladimir Oltean seq_zero); 580c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L4_FIN, 5813c83654fSVladimir Oltean tcp_fin); 582c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L4_SYN, 5833c83654fSVladimir Oltean tcp_syn); 584c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L4_RST, 5853c83654fSVladimir Oltean tcp_rst); 586c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L4_PSH, 5873c83654fSVladimir Oltean tcp_psh); 588c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L4_ACK, 5893c83654fSVladimir Oltean tcp_ack); 590c1c3993eSVladimir Oltean vcap_key_bit_set(vcap, &data, VCAP_IS2_HK_L4_URG, 5913c83654fSVladimir Oltean tcp_urg); 592c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_L4_1588_DOM, 5933c83654fSVladimir Oltean 0, 0); 594c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_HK_L4_1588_VER, 5953c83654fSVladimir Oltean 0, 0); 5963c83654fSVladimir Oltean } else { 5973c83654fSVladimir Oltean if (msk == 0) { 5983c83654fSVladimir Oltean /* Any IP protocol match */ 5993c83654fSVladimir Oltean type_mask = IS2_TYPE_MASK_IP_ANY; 6003c83654fSVladimir Oltean } else { 6013c83654fSVladimir Oltean /* Non-UDP/TCP protocol match */ 6023c83654fSVladimir Oltean type = IS2_TYPE_IP_OTHER; 6033c83654fSVladimir Oltean for (i = 0; i < 6; i++) { 6043c83654fSVladimir Oltean payload.value[i] = ip_data->value[i]; 6053c83654fSVladimir Oltean payload.mask[i] = ip_data->mask[i]; 6063c83654fSVladimir Oltean } 6073c83654fSVladimir Oltean } 608c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, 6093c83654fSVladimir Oltean VCAP_IS2_HK_IP4_L3_PROTO, 6103c83654fSVladimir Oltean proto.value, proto.mask); 611c1c3993eSVladimir Oltean vcap_key_bytes_set(vcap, &data, 6123c83654fSVladimir Oltean VCAP_IS2_HK_L3_PAYLOAD, 6133c83654fSVladimir Oltean payload.value, payload.mask); 6143c83654fSVladimir Oltean } 6153c83654fSVladimir Oltean break; 6163c83654fSVladimir Oltean } 617aae4e500SVladimir Oltean case OCELOT_VCAP_KEY_ANY: 6183c83654fSVladimir Oltean default: 6193c83654fSVladimir Oltean type = 0; 6203c83654fSVladimir Oltean type_mask = 0; 621c1c3993eSVladimir Oltean count = vcap->entry_width / 2; 6223c83654fSVladimir Oltean /* Iterate over the non-common part of the key and 6233c83654fSVladimir Oltean * clear entry data 6243c83654fSVladimir Oltean */ 625c1c3993eSVladimir Oltean for (i = vcap->keys[VCAP_IS2_HK_L2_DMAC].offset; 6263c83654fSVladimir Oltean i < count; i += ENTRY_WIDTH) { 6273c83654fSVladimir Oltean vcap_key_field_set(&data, i, min(32u, count - i), 0, 0); 6283c83654fSVladimir Oltean } 6293c83654fSVladimir Oltean break; 6303c83654fSVladimir Oltean } 6313c83654fSVladimir Oltean 632c1c3993eSVladimir Oltean vcap_key_set(vcap, &data, VCAP_IS2_TYPE, type, type_mask); 633aae4e500SVladimir Oltean is2_action_set(ocelot, &data, filter); 6343c83654fSVladimir Oltean vcap_data_set(data.counter, data.counter_offset, 635c1c3993eSVladimir Oltean vcap->counter_width, filter->stats.pkts); 6363c83654fSVladimir Oltean 6373c83654fSVladimir Oltean /* Write row */ 638c1c3993eSVladimir Oltean vcap_entry2cache(ocelot, vcap, &data); 639c1c3993eSVladimir Oltean vcap_action2cache(ocelot, vcap, &data); 640c1c3993eSVladimir Oltean vcap_row_cmd(ocelot, vcap, row, VCAP_CMD_WRITE, VCAP_SEL_ALL); 6413c83654fSVladimir Oltean } 6423c83654fSVladimir Oltean 643c1c3993eSVladimir Oltean static void 644c1c3993eSVladimir Oltean vcap_entry_get(struct ocelot *ocelot, struct ocelot_vcap_filter *filter, int ix) 6453c83654fSVladimir Oltean { 646c1c3993eSVladimir Oltean const struct vcap_props *vcap = &ocelot->vcap[VCAP_IS2]; 6473c83654fSVladimir Oltean struct vcap_data data; 648c1c3993eSVladimir Oltean int row, count; 6493c83654fSVladimir Oltean u32 cnt; 6503c83654fSVladimir Oltean 6513c83654fSVladimir Oltean data.tg_sw = VCAP_TG_HALF; 652c1c3993eSVladimir Oltean count = (1 << (data.tg_sw - 1)); 653c1c3993eSVladimir Oltean row = (ix / count); 654c1c3993eSVladimir Oltean vcap_row_cmd(ocelot, vcap, row, VCAP_CMD_READ, VCAP_SEL_COUNTER); 655c1c3993eSVladimir Oltean vcap_cache2action(ocelot, vcap, &data); 656c1c3993eSVladimir Oltean vcap_data_offset_get(vcap, &data, ix); 6573c83654fSVladimir Oltean cnt = vcap_data_get(data.counter, data.counter_offset, 658c1c3993eSVladimir Oltean vcap->counter_width); 6593c83654fSVladimir Oltean 660aae4e500SVladimir Oltean filter->stats.pkts = cnt; 6613c83654fSVladimir Oltean } 6623c83654fSVladimir Oltean 663c73b0ad3SVladimir Oltean static int ocelot_vcap_policer_add(struct ocelot *ocelot, u32 pol_ix, 664c73b0ad3SVladimir Oltean struct ocelot_policer *pol) 665c73b0ad3SVladimir Oltean { 666c73b0ad3SVladimir Oltean struct qos_policer_conf pp = { 0 }; 667c73b0ad3SVladimir Oltean 668c73b0ad3SVladimir Oltean if (!pol) 669c73b0ad3SVladimir Oltean return -EINVAL; 670c73b0ad3SVladimir Oltean 671c73b0ad3SVladimir Oltean pp.mode = MSCC_QOS_RATE_MODE_DATA; 672c73b0ad3SVladimir Oltean pp.pir = pol->rate; 673c73b0ad3SVladimir Oltean pp.pbs = pol->burst; 674c73b0ad3SVladimir Oltean 675c73b0ad3SVladimir Oltean return qos_policer_conf_set(ocelot, 0, pol_ix, &pp); 676c73b0ad3SVladimir Oltean } 677c73b0ad3SVladimir Oltean 678c73b0ad3SVladimir Oltean static void ocelot_vcap_policer_del(struct ocelot *ocelot, 679c73b0ad3SVladimir Oltean struct ocelot_vcap_block *block, 680c73b0ad3SVladimir Oltean u32 pol_ix) 681c73b0ad3SVladimir Oltean { 682c73b0ad3SVladimir Oltean struct ocelot_vcap_filter *filter; 683c73b0ad3SVladimir Oltean struct qos_policer_conf pp = {0}; 684c73b0ad3SVladimir Oltean int index = -1; 685c73b0ad3SVladimir Oltean 686c73b0ad3SVladimir Oltean if (pol_ix < block->pol_lpr) 687c73b0ad3SVladimir Oltean return; 688c73b0ad3SVladimir Oltean 689c73b0ad3SVladimir Oltean list_for_each_entry(filter, &block->rules, list) { 690c73b0ad3SVladimir Oltean index++; 691ea9d1f30SVladimir Oltean if (filter->action.police_ena && 692ea9d1f30SVladimir Oltean filter->action.pol_ix < pol_ix) { 693ea9d1f30SVladimir Oltean filter->action.pol_ix += 1; 694ea9d1f30SVladimir Oltean ocelot_vcap_policer_add(ocelot, filter->action.pol_ix, 695ea9d1f30SVladimir Oltean &filter->action.pol); 696c73b0ad3SVladimir Oltean is2_entry_set(ocelot, index, filter); 697c73b0ad3SVladimir Oltean } 698c73b0ad3SVladimir Oltean } 699c73b0ad3SVladimir Oltean 700c73b0ad3SVladimir Oltean pp.mode = MSCC_QOS_RATE_MODE_DISABLED; 701c73b0ad3SVladimir Oltean qos_policer_conf_set(ocelot, 0, pol_ix, &pp); 702c73b0ad3SVladimir Oltean 703c73b0ad3SVladimir Oltean block->pol_lpr++; 704c73b0ad3SVladimir Oltean } 705c73b0ad3SVladimir Oltean 706aae4e500SVladimir Oltean static void ocelot_vcap_filter_add_to_block(struct ocelot *ocelot, 707aae4e500SVladimir Oltean struct ocelot_vcap_block *block, 708aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 7093c83654fSVladimir Oltean { 710aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 7113c83654fSVladimir Oltean struct list_head *pos, *n; 7123c83654fSVladimir Oltean 713ea9d1f30SVladimir Oltean if (filter->action.police_ena) { 7143c83654fSVladimir Oltean block->pol_lpr--; 715ea9d1f30SVladimir Oltean filter->action.pol_ix = block->pol_lpr; 716ea9d1f30SVladimir Oltean ocelot_vcap_policer_add(ocelot, filter->action.pol_ix, 717ea9d1f30SVladimir Oltean &filter->action.pol); 7183c83654fSVladimir Oltean } 7193c83654fSVladimir Oltean 7203c83654fSVladimir Oltean block->count++; 7213c83654fSVladimir Oltean 7223c83654fSVladimir Oltean if (list_empty(&block->rules)) { 723aae4e500SVladimir Oltean list_add(&filter->list, &block->rules); 7243c83654fSVladimir Oltean return; 7253c83654fSVladimir Oltean } 7263c83654fSVladimir Oltean 7273c83654fSVladimir Oltean list_for_each_safe(pos, n, &block->rules) { 728aae4e500SVladimir Oltean tmp = list_entry(pos, struct ocelot_vcap_filter, list); 729aae4e500SVladimir Oltean if (filter->prio < tmp->prio) 7303c83654fSVladimir Oltean break; 7313c83654fSVladimir Oltean } 732aae4e500SVladimir Oltean list_add(&filter->list, pos->prev); 7333c83654fSVladimir Oltean } 7343c83654fSVladimir Oltean 735aae4e500SVladimir Oltean static int ocelot_vcap_block_get_filter_index(struct ocelot_vcap_block *block, 736aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 7373c83654fSVladimir Oltean { 738aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 739ed5672d8SXiaoliang Yang int index = 0; 7403c83654fSVladimir Oltean 7413c83654fSVladimir Oltean list_for_each_entry(tmp, &block->rules, list) { 742aae4e500SVladimir Oltean if (filter->id == tmp->id) 7433c83654fSVladimir Oltean return index; 744ed5672d8SXiaoliang Yang index++; 745ed5672d8SXiaoliang Yang } 746ed5672d8SXiaoliang Yang 747ed5672d8SXiaoliang Yang return -ENOENT; 7483c83654fSVladimir Oltean } 7493c83654fSVladimir Oltean 750aae4e500SVladimir Oltean static struct ocelot_vcap_filter* 751085f5b91SVladimir Oltean ocelot_vcap_block_find_filter_by_index(struct ocelot_vcap_block *block, 752aae4e500SVladimir Oltean int index) 7533c83654fSVladimir Oltean { 754aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 7553c83654fSVladimir Oltean int i = 0; 7563c83654fSVladimir Oltean 7573c83654fSVladimir Oltean list_for_each_entry(tmp, &block->rules, list) { 7583c83654fSVladimir Oltean if (i == index) 7593c83654fSVladimir Oltean return tmp; 7603c83654fSVladimir Oltean ++i; 7613c83654fSVladimir Oltean } 7623c83654fSVladimir Oltean 7633c83654fSVladimir Oltean return NULL; 7643c83654fSVladimir Oltean } 7653c83654fSVladimir Oltean 766085f5b91SVladimir Oltean struct ocelot_vcap_filter * 767085f5b91SVladimir Oltean ocelot_vcap_block_find_filter_by_id(struct ocelot_vcap_block *block, int id) 768085f5b91SVladimir Oltean { 769085f5b91SVladimir Oltean struct ocelot_vcap_filter *filter; 770085f5b91SVladimir Oltean 771085f5b91SVladimir Oltean list_for_each_entry(filter, &block->rules, list) 772085f5b91SVladimir Oltean if (filter->id == id) 773085f5b91SVladimir Oltean return filter; 774085f5b91SVladimir Oltean 775085f5b91SVladimir Oltean return NULL; 776085f5b91SVladimir Oltean } 777085f5b91SVladimir Oltean 7783c83654fSVladimir Oltean /* If @on=false, then SNAP, ARP, IP and OAM frames will not match on keys based 7793c83654fSVladimir Oltean * on destination and source MAC addresses, but only on higher-level protocol 7803c83654fSVladimir Oltean * information. The only frame types to match on keys containing MAC addresses 7813c83654fSVladimir Oltean * in this case are non-SNAP, non-ARP, non-IP and non-OAM frames. 7823c83654fSVladimir Oltean * 7833c83654fSVladimir Oltean * If @on=true, then the above frame types (SNAP, ARP, IP and OAM) will match 7843c83654fSVladimir Oltean * on MAC_ETYPE keys such as destination and source MAC on this ingress port. 7853c83654fSVladimir Oltean * However the setting has the side effect of making these frames not matching 7863c83654fSVladimir Oltean * on any _other_ keys than MAC_ETYPE ones. 7873c83654fSVladimir Oltean */ 7883c83654fSVladimir Oltean static void ocelot_match_all_as_mac_etype(struct ocelot *ocelot, int port, 7893c83654fSVladimir Oltean bool on) 7903c83654fSVladimir Oltean { 7913c83654fSVladimir Oltean u32 val = 0; 7923c83654fSVladimir Oltean 7933c83654fSVladimir Oltean if (on) 7943c83654fSVladimir Oltean val = ANA_PORT_VCAP_S2_CFG_S2_SNAP_DIS(3) | 7953c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_ARP_DIS(3) | 7963c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_IP_TCPUDP_DIS(3) | 7973c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_IP_OTHER_DIS(3) | 7983c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_OAM_DIS(3); 7993c83654fSVladimir Oltean 8003c83654fSVladimir Oltean ocelot_rmw_gix(ocelot, val, 8013c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_SNAP_DIS_M | 8023c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_ARP_DIS_M | 8033c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_IP_TCPUDP_DIS_M | 8043c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_IP_OTHER_DIS_M | 8053c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG_S2_OAM_DIS_M, 8063c83654fSVladimir Oltean ANA_PORT_VCAP_S2_CFG, port); 8073c83654fSVladimir Oltean } 8083c83654fSVladimir Oltean 809aae4e500SVladimir Oltean static bool 810aae4e500SVladimir Oltean ocelot_vcap_is_problematic_mac_etype(struct ocelot_vcap_filter *filter) 8113c83654fSVladimir Oltean { 8123c83654fSVladimir Oltean u16 proto, mask; 8133c83654fSVladimir Oltean 814aae4e500SVladimir Oltean if (filter->key_type != OCELOT_VCAP_KEY_ETYPE) 8153c83654fSVladimir Oltean return false; 8163c83654fSVladimir Oltean 817aae4e500SVladimir Oltean proto = ntohs(*(__be16 *)filter->key.etype.etype.value); 818aae4e500SVladimir Oltean mask = ntohs(*(__be16 *)filter->key.etype.etype.mask); 8193c83654fSVladimir Oltean 8203c83654fSVladimir Oltean /* ETH_P_ALL match, so all protocols below are included */ 8213c83654fSVladimir Oltean if (mask == 0) 8223c83654fSVladimir Oltean return true; 8233c83654fSVladimir Oltean if (proto == ETH_P_ARP) 8243c83654fSVladimir Oltean return true; 8253c83654fSVladimir Oltean if (proto == ETH_P_IP) 8263c83654fSVladimir Oltean return true; 8273c83654fSVladimir Oltean if (proto == ETH_P_IPV6) 8283c83654fSVladimir Oltean return true; 8293c83654fSVladimir Oltean 8303c83654fSVladimir Oltean return false; 8313c83654fSVladimir Oltean } 8323c83654fSVladimir Oltean 833aae4e500SVladimir Oltean static bool 834aae4e500SVladimir Oltean ocelot_vcap_is_problematic_non_mac_etype(struct ocelot_vcap_filter *filter) 8353c83654fSVladimir Oltean { 836aae4e500SVladimir Oltean if (filter->key_type == OCELOT_VCAP_KEY_SNAP) 8373c83654fSVladimir Oltean return true; 838aae4e500SVladimir Oltean if (filter->key_type == OCELOT_VCAP_KEY_ARP) 8393c83654fSVladimir Oltean return true; 840aae4e500SVladimir Oltean if (filter->key_type == OCELOT_VCAP_KEY_IPV4) 8413c83654fSVladimir Oltean return true; 842aae4e500SVladimir Oltean if (filter->key_type == OCELOT_VCAP_KEY_IPV6) 8433c83654fSVladimir Oltean return true; 8443c83654fSVladimir Oltean return false; 8453c83654fSVladimir Oltean } 8463c83654fSVladimir Oltean 847aae4e500SVladimir Oltean static bool 848aae4e500SVladimir Oltean ocelot_exclusive_mac_etype_filter_rules(struct ocelot *ocelot, 849aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 8503c83654fSVladimir Oltean { 851aae4e500SVladimir Oltean struct ocelot_vcap_block *block = &ocelot->block; 852aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 8533c83654fSVladimir Oltean unsigned long port; 8543c83654fSVladimir Oltean int i; 8553c83654fSVladimir Oltean 856aae4e500SVladimir Oltean if (ocelot_vcap_is_problematic_mac_etype(filter)) { 8573c83654fSVladimir Oltean /* Search for any non-MAC_ETYPE rules on the port */ 8583c83654fSVladimir Oltean for (i = 0; i < block->count; i++) { 859085f5b91SVladimir Oltean tmp = ocelot_vcap_block_find_filter_by_index(block, i); 860aae4e500SVladimir Oltean if (tmp->ingress_port_mask & filter->ingress_port_mask && 861aae4e500SVladimir Oltean ocelot_vcap_is_problematic_non_mac_etype(tmp)) 8623c83654fSVladimir Oltean return false; 8633c83654fSVladimir Oltean } 8643c83654fSVladimir Oltean 865aae4e500SVladimir Oltean for_each_set_bit(port, &filter->ingress_port_mask, 8663c83654fSVladimir Oltean ocelot->num_phys_ports) 8673c83654fSVladimir Oltean ocelot_match_all_as_mac_etype(ocelot, port, true); 868aae4e500SVladimir Oltean } else if (ocelot_vcap_is_problematic_non_mac_etype(filter)) { 8693c83654fSVladimir Oltean /* Search for any MAC_ETYPE rules on the port */ 8703c83654fSVladimir Oltean for (i = 0; i < block->count; i++) { 871085f5b91SVladimir Oltean tmp = ocelot_vcap_block_find_filter_by_index(block, i); 872aae4e500SVladimir Oltean if (tmp->ingress_port_mask & filter->ingress_port_mask && 873aae4e500SVladimir Oltean ocelot_vcap_is_problematic_mac_etype(tmp)) 8743c83654fSVladimir Oltean return false; 8753c83654fSVladimir Oltean } 8763c83654fSVladimir Oltean 877aae4e500SVladimir Oltean for_each_set_bit(port, &filter->ingress_port_mask, 8783c83654fSVladimir Oltean ocelot->num_phys_ports) 8793c83654fSVladimir Oltean ocelot_match_all_as_mac_etype(ocelot, port, false); 8803c83654fSVladimir Oltean } 8813c83654fSVladimir Oltean 8823c83654fSVladimir Oltean return true; 8833c83654fSVladimir Oltean } 8843c83654fSVladimir Oltean 885aae4e500SVladimir Oltean int ocelot_vcap_filter_add(struct ocelot *ocelot, 886aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter, 8873c83654fSVladimir Oltean struct netlink_ext_ack *extack) 8883c83654fSVladimir Oltean { 889aae4e500SVladimir Oltean struct ocelot_vcap_block *block = &ocelot->block; 8903c83654fSVladimir Oltean int i, index; 8913c83654fSVladimir Oltean 892aae4e500SVladimir Oltean if (!ocelot_exclusive_mac_etype_filter_rules(ocelot, filter)) { 8933c83654fSVladimir Oltean NL_SET_ERR_MSG_MOD(extack, 8943c83654fSVladimir Oltean "Cannot mix MAC_ETYPE with non-MAC_ETYPE rules"); 8953c83654fSVladimir Oltean return -EBUSY; 8963c83654fSVladimir Oltean } 8973c83654fSVladimir Oltean 898aae4e500SVladimir Oltean /* Add filter to the linked list */ 899aae4e500SVladimir Oltean ocelot_vcap_filter_add_to_block(ocelot, block, filter); 9003c83654fSVladimir Oltean 901aae4e500SVladimir Oltean /* Get the index of the inserted filter */ 902aae4e500SVladimir Oltean index = ocelot_vcap_block_get_filter_index(block, filter); 903ed5672d8SXiaoliang Yang if (index < 0) 904ed5672d8SXiaoliang Yang return index; 9053c83654fSVladimir Oltean 906aae4e500SVladimir Oltean /* Move down the rules to make place for the new filter */ 9073c83654fSVladimir Oltean for (i = block->count - 1; i > index; i--) { 908aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 909aae4e500SVladimir Oltean 910085f5b91SVladimir Oltean tmp = ocelot_vcap_block_find_filter_by_index(block, i); 911aae4e500SVladimir Oltean is2_entry_set(ocelot, i, tmp); 9123c83654fSVladimir Oltean } 9133c83654fSVladimir Oltean 914aae4e500SVladimir Oltean /* Now insert the new filter */ 915aae4e500SVladimir Oltean is2_entry_set(ocelot, index, filter); 9163c83654fSVladimir Oltean return 0; 9173c83654fSVladimir Oltean } 9183c83654fSVladimir Oltean 919aae4e500SVladimir Oltean static void ocelot_vcap_block_remove_filter(struct ocelot *ocelot, 920aae4e500SVladimir Oltean struct ocelot_vcap_block *block, 921aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 9223c83654fSVladimir Oltean { 923aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 9243c83654fSVladimir Oltean struct list_head *pos, *q; 9253c83654fSVladimir Oltean 9263c83654fSVladimir Oltean list_for_each_safe(pos, q, &block->rules) { 927aae4e500SVladimir Oltean tmp = list_entry(pos, struct ocelot_vcap_filter, list); 928aae4e500SVladimir Oltean if (tmp->id == filter->id) { 929ea9d1f30SVladimir Oltean if (tmp->action.police_ena) 930c73b0ad3SVladimir Oltean ocelot_vcap_policer_del(ocelot, block, 931ea9d1f30SVladimir Oltean tmp->action.pol_ix); 9323c83654fSVladimir Oltean 9333c83654fSVladimir Oltean list_del(pos); 9343c83654fSVladimir Oltean kfree(tmp); 9353c83654fSVladimir Oltean } 9363c83654fSVladimir Oltean } 9373c83654fSVladimir Oltean 9383c83654fSVladimir Oltean block->count--; 9393c83654fSVladimir Oltean } 9403c83654fSVladimir Oltean 941aae4e500SVladimir Oltean int ocelot_vcap_filter_del(struct ocelot *ocelot, 942aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 9433c83654fSVladimir Oltean { 944aae4e500SVladimir Oltean struct ocelot_vcap_block *block = &ocelot->block; 945aae4e500SVladimir Oltean struct ocelot_vcap_filter del_filter; 9463c83654fSVladimir Oltean int i, index; 9473c83654fSVladimir Oltean 948aae4e500SVladimir Oltean memset(&del_filter, 0, sizeof(del_filter)); 9493c83654fSVladimir Oltean 950aae4e500SVladimir Oltean /* Gets index of the filter */ 951aae4e500SVladimir Oltean index = ocelot_vcap_block_get_filter_index(block, filter); 952ed5672d8SXiaoliang Yang if (index < 0) 953ed5672d8SXiaoliang Yang return index; 9543c83654fSVladimir Oltean 955aae4e500SVladimir Oltean /* Delete filter */ 956aae4e500SVladimir Oltean ocelot_vcap_block_remove_filter(ocelot, block, filter); 9573c83654fSVladimir Oltean 958aae4e500SVladimir Oltean /* Move up all the blocks over the deleted filter */ 9593c83654fSVladimir Oltean for (i = index; i < block->count; i++) { 960aae4e500SVladimir Oltean struct ocelot_vcap_filter *tmp; 961aae4e500SVladimir Oltean 962085f5b91SVladimir Oltean tmp = ocelot_vcap_block_find_filter_by_index(block, i); 963aae4e500SVladimir Oltean is2_entry_set(ocelot, i, tmp); 9643c83654fSVladimir Oltean } 9653c83654fSVladimir Oltean 966aae4e500SVladimir Oltean /* Now delete the last filter, because it is duplicated */ 967aae4e500SVladimir Oltean is2_entry_set(ocelot, block->count, &del_filter); 9683c83654fSVladimir Oltean 9693c83654fSVladimir Oltean return 0; 9703c83654fSVladimir Oltean } 9713c83654fSVladimir Oltean 972aae4e500SVladimir Oltean int ocelot_vcap_filter_stats_update(struct ocelot *ocelot, 973aae4e500SVladimir Oltean struct ocelot_vcap_filter *filter) 9743c83654fSVladimir Oltean { 975aae4e500SVladimir Oltean struct ocelot_vcap_block *block = &ocelot->block; 97698642d1aSVladimir Oltean struct ocelot_vcap_filter tmp; 9773c83654fSVladimir Oltean int index; 9783c83654fSVladimir Oltean 979aae4e500SVladimir Oltean index = ocelot_vcap_block_get_filter_index(block, filter); 980ed5672d8SXiaoliang Yang if (index < 0) 981ed5672d8SXiaoliang Yang return index; 982ed5672d8SXiaoliang Yang 983c1c3993eSVladimir Oltean vcap_entry_get(ocelot, filter, index); 9843c83654fSVladimir Oltean 9853c83654fSVladimir Oltean /* After we get the result we need to clear the counters */ 98698642d1aSVladimir Oltean tmp = *filter; 98798642d1aSVladimir Oltean tmp.stats.pkts = 0; 98898642d1aSVladimir Oltean is2_entry_set(ocelot, index, &tmp); 9893c83654fSVladimir Oltean 9903c83654fSVladimir Oltean return 0; 9913c83654fSVladimir Oltean } 9923c83654fSVladimir Oltean 993c1c3993eSVladimir Oltean static void ocelot_vcap_init_one(struct ocelot *ocelot, 994c1c3993eSVladimir Oltean const struct vcap_props *vcap) 9953c83654fSVladimir Oltean { 9963c83654fSVladimir Oltean struct vcap_data data; 9973c83654fSVladimir Oltean 9983c83654fSVladimir Oltean memset(&data, 0, sizeof(data)); 9993c83654fSVladimir Oltean 1000c1c3993eSVladimir Oltean vcap_entry2cache(ocelot, vcap, &data); 1001c1c3993eSVladimir Oltean ocelot_target_write(ocelot, vcap->target, vcap->entry_count, 1002c1c3993eSVladimir Oltean VCAP_CORE_MV_CFG); 1003c1c3993eSVladimir Oltean vcap_cmd(ocelot, vcap, 0, VCAP_CMD_INITIALIZE, VCAP_SEL_ENTRY); 10043c83654fSVladimir Oltean 1005c1c3993eSVladimir Oltean vcap_action2cache(ocelot, vcap, &data); 1006c1c3993eSVladimir Oltean ocelot_target_write(ocelot, vcap->target, vcap->action_count, 1007c1c3993eSVladimir Oltean VCAP_CORE_MV_CFG); 1008c1c3993eSVladimir Oltean vcap_cmd(ocelot, vcap, 0, VCAP_CMD_INITIALIZE, 10093c83654fSVladimir Oltean VCAP_SEL_ACTION | VCAP_SEL_COUNTER); 1010c1c3993eSVladimir Oltean } 1011c1c3993eSVladimir Oltean 101220968054SVladimir Oltean static void ocelot_vcap_detect_constants(struct ocelot *ocelot, 101320968054SVladimir Oltean struct vcap_props *vcap) 101420968054SVladimir Oltean { 101520968054SVladimir Oltean int counter_memory_width; 101620968054SVladimir Oltean int num_default_actions; 101720968054SVladimir Oltean int version; 101820968054SVladimir Oltean 101920968054SVladimir Oltean version = ocelot_target_read(ocelot, vcap->target, 102020968054SVladimir Oltean VCAP_CONST_VCAP_VER); 102120968054SVladimir Oltean /* Only version 0 VCAP supported for now */ 102220968054SVladimir Oltean if (WARN_ON(version != 0)) 102320968054SVladimir Oltean return; 102420968054SVladimir Oltean 102520968054SVladimir Oltean /* Width in bits of type-group field */ 102620968054SVladimir Oltean vcap->tg_width = ocelot_target_read(ocelot, vcap->target, 102720968054SVladimir Oltean VCAP_CONST_ENTRY_TG_WIDTH); 102820968054SVladimir Oltean /* Number of subwords per TCAM row */ 102920968054SVladimir Oltean vcap->sw_count = ocelot_target_read(ocelot, vcap->target, 103020968054SVladimir Oltean VCAP_CONST_ENTRY_SWCNT); 103120968054SVladimir Oltean /* Number of rows in TCAM. There can be this many full keys, or double 103220968054SVladimir Oltean * this number half keys, or 4 times this number quarter keys. 103320968054SVladimir Oltean */ 103420968054SVladimir Oltean vcap->entry_count = ocelot_target_read(ocelot, vcap->target, 103520968054SVladimir Oltean VCAP_CONST_ENTRY_CNT); 103620968054SVladimir Oltean /* Assuming there are 4 subwords per TCAM row, their layout in the 103720968054SVladimir Oltean * actual TCAM (not in the cache) would be: 103820968054SVladimir Oltean * 103920968054SVladimir Oltean * | SW 3 | TG 3 | SW 2 | TG 2 | SW 1 | TG 1 | SW 0 | TG 0 | 104020968054SVladimir Oltean * 104120968054SVladimir Oltean * (where SW=subword and TG=Type-Group). 104220968054SVladimir Oltean * 104320968054SVladimir Oltean * What VCAP_CONST_ENTRY_CNT is giving us is the width of one full TCAM 104420968054SVladimir Oltean * row. But when software accesses the TCAM through the cache 104520968054SVladimir Oltean * registers, the Type-Group values are written through another set of 104620968054SVladimir Oltean * registers VCAP_TG_DAT, and therefore, it appears as though the 4 104720968054SVladimir Oltean * subwords are contiguous in the cache memory. 104820968054SVladimir Oltean * Important mention: regardless of the number of key entries per row 104920968054SVladimir Oltean * (and therefore of key size: 1 full key or 2 half keys or 4 quarter 105020968054SVladimir Oltean * keys), software always has to configure 4 Type-Group values. For 105120968054SVladimir Oltean * example, in the case of 1 full key, the driver needs to set all 4 105220968054SVladimir Oltean * Type-Group to be full key. 105320968054SVladimir Oltean * 105420968054SVladimir Oltean * For this reason, we need to fix up the value that the hardware is 105520968054SVladimir Oltean * giving us. We don't actually care about the width of the entry in 105620968054SVladimir Oltean * the TCAM. What we care about is the width of the entry in the cache 105720968054SVladimir Oltean * registers, which is how we get to interact with it. And since the 105820968054SVladimir Oltean * VCAP_ENTRY_DAT cache registers access only the subwords and not the 105920968054SVladimir Oltean * Type-Groups, this means we need to subtract the width of the 106020968054SVladimir Oltean * Type-Groups when packing and unpacking key entry data in a TCAM row. 106120968054SVladimir Oltean */ 106220968054SVladimir Oltean vcap->entry_width = ocelot_target_read(ocelot, vcap->target, 106320968054SVladimir Oltean VCAP_CONST_ENTRY_WIDTH); 106420968054SVladimir Oltean vcap->entry_width -= vcap->tg_width * vcap->sw_count; 106520968054SVladimir Oltean num_default_actions = ocelot_target_read(ocelot, vcap->target, 106620968054SVladimir Oltean VCAP_CONST_ACTION_DEF_CNT); 106720968054SVladimir Oltean vcap->action_count = vcap->entry_count + num_default_actions; 106820968054SVladimir Oltean vcap->action_width = ocelot_target_read(ocelot, vcap->target, 106920968054SVladimir Oltean VCAP_CONST_ACTION_WIDTH); 107020968054SVladimir Oltean /* The width of the counter memory, this is the complete width of all 107120968054SVladimir Oltean * counter-fields associated with one full-word entry. There is one 107220968054SVladimir Oltean * counter per entry sub-word (see CAP_CORE::ENTRY_SWCNT for number of 107320968054SVladimir Oltean * subwords.) 107420968054SVladimir Oltean */ 107520968054SVladimir Oltean vcap->counter_words = vcap->sw_count; 107620968054SVladimir Oltean counter_memory_width = ocelot_target_read(ocelot, vcap->target, 107720968054SVladimir Oltean VCAP_CONST_CNT_WIDTH); 107820968054SVladimir Oltean vcap->counter_width = counter_memory_width / vcap->counter_words; 107920968054SVladimir Oltean } 108020968054SVladimir Oltean 1081c1c3993eSVladimir Oltean int ocelot_vcap_init(struct ocelot *ocelot) 1082c1c3993eSVladimir Oltean { 1083c1c3993eSVladimir Oltean struct ocelot_vcap_block *block = &ocelot->block; 108420968054SVladimir Oltean int i; 10853c83654fSVladimir Oltean 10863c83654fSVladimir Oltean /* Create a policer that will drop the frames for the cpu. 10873c83654fSVladimir Oltean * This policer will be used as action in the acl rules to drop 10883c83654fSVladimir Oltean * frames. 10893c83654fSVladimir Oltean */ 10903c83654fSVladimir Oltean ocelot_write_gix(ocelot, 0x299, ANA_POL_MODE_CFG, 10913c83654fSVladimir Oltean OCELOT_POLICER_DISCARD); 10923c83654fSVladimir Oltean ocelot_write_gix(ocelot, 0x1, ANA_POL_PIR_CFG, 10933c83654fSVladimir Oltean OCELOT_POLICER_DISCARD); 10943c83654fSVladimir Oltean ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_PIR_STATE, 10953c83654fSVladimir Oltean OCELOT_POLICER_DISCARD); 10963c83654fSVladimir Oltean ocelot_write_gix(ocelot, 0x0, ANA_POL_CIR_CFG, 10973c83654fSVladimir Oltean OCELOT_POLICER_DISCARD); 10983c83654fSVladimir Oltean ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_CIR_STATE, 10993c83654fSVladimir Oltean OCELOT_POLICER_DISCARD); 11003c83654fSVladimir Oltean 110120968054SVladimir Oltean for (i = 0; i < OCELOT_NUM_VCAP_BLOCKS; i++) { 110220968054SVladimir Oltean struct vcap_props *vcap = &ocelot->vcap[i]; 110320968054SVladimir Oltean 110420968054SVladimir Oltean ocelot_vcap_detect_constants(ocelot, vcap); 110520968054SVladimir Oltean ocelot_vcap_init_one(ocelot, vcap); 110620968054SVladimir Oltean } 110720968054SVladimir Oltean 11083c83654fSVladimir Oltean block->pol_lpr = OCELOT_POLICER_DISCARD - 1; 11093c83654fSVladimir Oltean 1110c1c3993eSVladimir Oltean INIT_LIST_HEAD(&block->rules); 11113c83654fSVladimir Oltean 11123c83654fSVladimir Oltean return 0; 11133c83654fSVladimir Oltean } 1114