octeontx2-af: Debugsfs support for exact match.
There debugfs files created. 1. General information on exact match table 2. Exact match table entries. 3. NPC mcam drop on hit count stats. Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Ratheesh Kannoth
Jakub Kicinski
parent
3571fe07a0
commit
87e4ea29b0
@ -18,6 +18,7 @@
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#include "cgx.h"
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#include "lmac_common.h"
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#include "npc.h"
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#include "rvu_npc_hash.h"
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#define DEBUGFS_DIR_NAME "octeontx2"
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@ -2600,6 +2601,170 @@ static int rvu_dbg_npc_mcam_show_rules(struct seq_file *s, void *unused)
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RVU_DEBUG_SEQ_FOPS(npc_mcam_rules, npc_mcam_show_rules, NULL);
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static int rvu_dbg_npc_exact_show_entries(struct seq_file *s, void *unused)
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{
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struct npc_exact_table_entry *mem_entry[NPC_EXACT_TBL_MAX_WAYS] = { 0 };
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struct npc_exact_table_entry *cam_entry;
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struct npc_exact_table *table;
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struct rvu *rvu = s->private;
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int i, j;
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u8 bitmap = 0;
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table = rvu->hw->table;
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mutex_lock(&table->lock);
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/* Check if there is at least one entry in mem table */
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if (!table->mem_tbl_entry_cnt)
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goto dump_cam_table;
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/* Print table headers */
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seq_puts(s, "\n\tExact Match MEM Table\n");
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seq_puts(s, "Index\t");
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for (i = 0; i < table->mem_table.ways; i++) {
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mem_entry[i] = list_first_entry_or_null(&table->lhead_mem_tbl_entry[i],
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struct npc_exact_table_entry, list);
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seq_printf(s, "Way-%d\t\t\t\t\t", i);
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}
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seq_puts(s, "\n");
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for (i = 0; i < table->mem_table.ways; i++)
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seq_puts(s, "\tChan MAC \t");
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seq_puts(s, "\n\n");
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/* Print mem table entries */
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for (i = 0; i < table->mem_table.depth; i++) {
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bitmap = 0;
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for (j = 0; j < table->mem_table.ways; j++) {
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if (!mem_entry[j])
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continue;
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if (mem_entry[j]->index != i)
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continue;
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bitmap |= BIT(j);
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}
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/* No valid entries */
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if (!bitmap)
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continue;
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seq_printf(s, "%d\t", i);
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for (j = 0; j < table->mem_table.ways; j++) {
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if (!(bitmap & BIT(j))) {
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seq_puts(s, "nil\t\t\t\t\t");
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continue;
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}
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seq_printf(s, "0x%x %pM\t\t\t", mem_entry[j]->chan,
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mem_entry[j]->mac);
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mem_entry[j] = list_next_entry(mem_entry[j], list);
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}
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seq_puts(s, "\n");
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}
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dump_cam_table:
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if (!table->cam_tbl_entry_cnt)
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goto done;
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seq_puts(s, "\n\tExact Match CAM Table\n");
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seq_puts(s, "index\tchan\tMAC\n");
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/* Traverse cam table entries */
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list_for_each_entry(cam_entry, &table->lhead_cam_tbl_entry, list) {
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seq_printf(s, "%d\t0x%x\t%pM\n", cam_entry->index, cam_entry->chan,
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cam_entry->mac);
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}
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done:
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mutex_unlock(&table->lock);
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return 0;
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}
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RVU_DEBUG_SEQ_FOPS(npc_exact_entries, npc_exact_show_entries, NULL);
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static int rvu_dbg_npc_exact_show_info(struct seq_file *s, void *unused)
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{
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struct npc_exact_table *table;
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struct rvu *rvu = s->private;
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int i;
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table = rvu->hw->table;
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seq_puts(s, "\n\tExact Table Info\n");
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seq_printf(s, "Exact Match Feature : %s\n",
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rvu->hw->cap.npc_exact_match_enabled ? "enabled" : "disable");
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if (!rvu->hw->cap.npc_exact_match_enabled)
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return 0;
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seq_puts(s, "\nMCAM Index\tMAC Filter Rules Count\n");
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for (i = 0; i < table->num_drop_rules; i++)
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seq_printf(s, "%d\t\t%d\n", i, table->cnt_cmd_rules[i]);
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seq_puts(s, "\nMcam Index\tPromisc Mode Status\n");
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for (i = 0; i < table->num_drop_rules; i++)
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seq_printf(s, "%d\t\t%s\n", i, table->promisc_mode[i] ? "on" : "off");
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seq_puts(s, "\n\tMEM Table Info\n");
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seq_printf(s, "Ways : %d\n", table->mem_table.ways);
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seq_printf(s, "Depth : %d\n", table->mem_table.depth);
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seq_printf(s, "Mask : 0x%llx\n", table->mem_table.mask);
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seq_printf(s, "Hash Mask : 0x%x\n", table->mem_table.hash_mask);
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seq_printf(s, "Hash Offset : 0x%x\n", table->mem_table.hash_offset);
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seq_puts(s, "\n\tCAM Table Info\n");
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seq_printf(s, "Depth : %d\n", table->cam_table.depth);
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return 0;
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}
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RVU_DEBUG_SEQ_FOPS(npc_exact_info, npc_exact_show_info, NULL);
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static int rvu_dbg_npc_exact_drop_cnt(struct seq_file *s, void *unused)
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{
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struct npc_exact_table *table;
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struct rvu *rvu = s->private;
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struct npc_key_field *field;
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u16 chan, pcifunc;
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int blkaddr, i;
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u64 cfg, cam1;
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char *str;
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blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
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table = rvu->hw->table;
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field = &rvu->hw->mcam.rx_key_fields[NPC_CHAN];
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seq_puts(s, "\n\t Exact Hit on drop status\n");
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seq_puts(s, "\npcifunc\tmcam_idx\tHits\tchan\tstatus\n");
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for (i = 0; i < table->num_drop_rules; i++) {
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pcifunc = rvu_npc_exact_drop_rule_to_pcifunc(rvu, i);
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cfg = rvu_read64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_CFG(i, 0));
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/* channel will be always in keyword 0 */
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cam1 = rvu_read64(rvu, blkaddr,
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NPC_AF_MCAMEX_BANKX_CAMX_W0(i, 0, 1));
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chan = field->kw_mask[0] & cam1;
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str = (cfg & 1) ? "enabled" : "disabled";
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seq_printf(s, "0x%x\t%d\t\t%llu\t0x%x\t%s\n", pcifunc, i,
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rvu_read64(rvu, blkaddr,
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NPC_AF_MATCH_STATX(table->counter_idx[i])),
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chan, str);
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}
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return 0;
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}
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RVU_DEBUG_SEQ_FOPS(npc_exact_drop_cnt, npc_exact_drop_cnt, NULL);
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static void rvu_dbg_npc_init(struct rvu *rvu)
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{
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rvu->rvu_dbg.npc = debugfs_create_dir("npc", rvu->rvu_dbg.root);
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@ -2608,8 +2773,22 @@ static void rvu_dbg_npc_init(struct rvu *rvu)
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&rvu_dbg_npc_mcam_info_fops);
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debugfs_create_file("mcam_rules", 0444, rvu->rvu_dbg.npc, rvu,
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&rvu_dbg_npc_mcam_rules_fops);
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debugfs_create_file("rx_miss_act_stats", 0444, rvu->rvu_dbg.npc, rvu,
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&rvu_dbg_npc_rx_miss_act_fops);
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if (!rvu->hw->cap.npc_exact_match_enabled)
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return;
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debugfs_create_file("exact_entries", 0444, rvu->rvu_dbg.npc, rvu,
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&rvu_dbg_npc_exact_entries_fops);
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debugfs_create_file("exact_info", 0444, rvu->rvu_dbg.npc, rvu,
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&rvu_dbg_npc_exact_info_fops);
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debugfs_create_file("exact_drop_cnt", 0444, rvu->rvu_dbg.npc, rvu,
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&rvu_dbg_npc_exact_drop_cnt_fops);
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}
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static int cpt_eng_sts_display(struct seq_file *filp, u8 eng_type)
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