Commit 87e4ea29 authored by Ratheesh Kannoth's avatar Ratheesh Kannoth Committed by Jakub Kicinski

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: default avatarRatheesh Kannoth <rkannoth@marvell.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 3571fe07
...@@ -18,6 +18,7 @@ ...@@ -18,6 +18,7 @@
#include "cgx.h" #include "cgx.h"
#include "lmac_common.h" #include "lmac_common.h"
#include "npc.h" #include "npc.h"
#include "rvu_npc_hash.h"
#define DEBUGFS_DIR_NAME "octeontx2" #define DEBUGFS_DIR_NAME "octeontx2"
...@@ -2600,6 +2601,170 @@ static int rvu_dbg_npc_mcam_show_rules(struct seq_file *s, void *unused) ...@@ -2600,6 +2601,170 @@ static int rvu_dbg_npc_mcam_show_rules(struct seq_file *s, void *unused)
RVU_DEBUG_SEQ_FOPS(npc_mcam_rules, npc_mcam_show_rules, NULL); RVU_DEBUG_SEQ_FOPS(npc_mcam_rules, npc_mcam_show_rules, NULL);
static int rvu_dbg_npc_exact_show_entries(struct seq_file *s, void *unused)
{
struct npc_exact_table_entry *mem_entry[NPC_EXACT_TBL_MAX_WAYS] = { 0 };
struct npc_exact_table_entry *cam_entry;
struct npc_exact_table *table;
struct rvu *rvu = s->private;
int i, j;
u8 bitmap = 0;
table = rvu->hw->table;
mutex_lock(&table->lock);
/* Check if there is at least one entry in mem table */
if (!table->mem_tbl_entry_cnt)
goto dump_cam_table;
/* Print table headers */
seq_puts(s, "\n\tExact Match MEM Table\n");
seq_puts(s, "Index\t");
for (i = 0; i < table->mem_table.ways; i++) {
mem_entry[i] = list_first_entry_or_null(&table->lhead_mem_tbl_entry[i],
struct npc_exact_table_entry, list);
seq_printf(s, "Way-%d\t\t\t\t\t", i);
}
seq_puts(s, "\n");
for (i = 0; i < table->mem_table.ways; i++)
seq_puts(s, "\tChan MAC \t");
seq_puts(s, "\n\n");
/* Print mem table entries */
for (i = 0; i < table->mem_table.depth; i++) {
bitmap = 0;
for (j = 0; j < table->mem_table.ways; j++) {
if (!mem_entry[j])
continue;
if (mem_entry[j]->index != i)
continue;
bitmap |= BIT(j);
}
/* No valid entries */
if (!bitmap)
continue;
seq_printf(s, "%d\t", i);
for (j = 0; j < table->mem_table.ways; j++) {
if (!(bitmap & BIT(j))) {
seq_puts(s, "nil\t\t\t\t\t");
continue;
}
seq_printf(s, "0x%x %pM\t\t\t", mem_entry[j]->chan,
mem_entry[j]->mac);
mem_entry[j] = list_next_entry(mem_entry[j], list);
}
seq_puts(s, "\n");
}
dump_cam_table:
if (!table->cam_tbl_entry_cnt)
goto done;
seq_puts(s, "\n\tExact Match CAM Table\n");
seq_puts(s, "index\tchan\tMAC\n");
/* Traverse cam table entries */
list_for_each_entry(cam_entry, &table->lhead_cam_tbl_entry, list) {
seq_printf(s, "%d\t0x%x\t%pM\n", cam_entry->index, cam_entry->chan,
cam_entry->mac);
}
done:
mutex_unlock(&table->lock);
return 0;
}
RVU_DEBUG_SEQ_FOPS(npc_exact_entries, npc_exact_show_entries, NULL);
static int rvu_dbg_npc_exact_show_info(struct seq_file *s, void *unused)
{
struct npc_exact_table *table;
struct rvu *rvu = s->private;
int i;
table = rvu->hw->table;
seq_puts(s, "\n\tExact Table Info\n");
seq_printf(s, "Exact Match Feature : %s\n",
rvu->hw->cap.npc_exact_match_enabled ? "enabled" : "disable");
if (!rvu->hw->cap.npc_exact_match_enabled)
return 0;
seq_puts(s, "\nMCAM Index\tMAC Filter Rules Count\n");
for (i = 0; i < table->num_drop_rules; i++)
seq_printf(s, "%d\t\t%d\n", i, table->cnt_cmd_rules[i]);
seq_puts(s, "\nMcam Index\tPromisc Mode Status\n");
for (i = 0; i < table->num_drop_rules; i++)
seq_printf(s, "%d\t\t%s\n", i, table->promisc_mode[i] ? "on" : "off");
seq_puts(s, "\n\tMEM Table Info\n");
seq_printf(s, "Ways : %d\n", table->mem_table.ways);
seq_printf(s, "Depth : %d\n", table->mem_table.depth);
seq_printf(s, "Mask : 0x%llx\n", table->mem_table.mask);
seq_printf(s, "Hash Mask : 0x%x\n", table->mem_table.hash_mask);
seq_printf(s, "Hash Offset : 0x%x\n", table->mem_table.hash_offset);
seq_puts(s, "\n\tCAM Table Info\n");
seq_printf(s, "Depth : %d\n", table->cam_table.depth);
return 0;
}
RVU_DEBUG_SEQ_FOPS(npc_exact_info, npc_exact_show_info, NULL);
static int rvu_dbg_npc_exact_drop_cnt(struct seq_file *s, void *unused)
{
struct npc_exact_table *table;
struct rvu *rvu = s->private;
struct npc_key_field *field;
u16 chan, pcifunc;
int blkaddr, i;
u64 cfg, cam1;
char *str;
blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0);
table = rvu->hw->table;
field = &rvu->hw->mcam.rx_key_fields[NPC_CHAN];
seq_puts(s, "\n\t Exact Hit on drop status\n");
seq_puts(s, "\npcifunc\tmcam_idx\tHits\tchan\tstatus\n");
for (i = 0; i < table->num_drop_rules; i++) {
pcifunc = rvu_npc_exact_drop_rule_to_pcifunc(rvu, i);
cfg = rvu_read64(rvu, blkaddr, NPC_AF_MCAMEX_BANKX_CFG(i, 0));
/* channel will be always in keyword 0 */
cam1 = rvu_read64(rvu, blkaddr,
NPC_AF_MCAMEX_BANKX_CAMX_W0(i, 0, 1));
chan = field->kw_mask[0] & cam1;
str = (cfg & 1) ? "enabled" : "disabled";
seq_printf(s, "0x%x\t%d\t\t%llu\t0x%x\t%s\n", pcifunc, i,
rvu_read64(rvu, blkaddr,
NPC_AF_MATCH_STATX(table->counter_idx[i])),
chan, str);
}
return 0;
}
RVU_DEBUG_SEQ_FOPS(npc_exact_drop_cnt, npc_exact_drop_cnt, NULL);
static void rvu_dbg_npc_init(struct rvu *rvu) static void rvu_dbg_npc_init(struct rvu *rvu)
{ {
rvu->rvu_dbg.npc = debugfs_create_dir("npc", rvu->rvu_dbg.root); rvu->rvu_dbg.npc = debugfs_create_dir("npc", rvu->rvu_dbg.root);
...@@ -2608,8 +2773,22 @@ static void rvu_dbg_npc_init(struct rvu *rvu) ...@@ -2608,8 +2773,22 @@ static void rvu_dbg_npc_init(struct rvu *rvu)
&rvu_dbg_npc_mcam_info_fops); &rvu_dbg_npc_mcam_info_fops);
debugfs_create_file("mcam_rules", 0444, rvu->rvu_dbg.npc, rvu, debugfs_create_file("mcam_rules", 0444, rvu->rvu_dbg.npc, rvu,
&rvu_dbg_npc_mcam_rules_fops); &rvu_dbg_npc_mcam_rules_fops);
debugfs_create_file("rx_miss_act_stats", 0444, rvu->rvu_dbg.npc, rvu, debugfs_create_file("rx_miss_act_stats", 0444, rvu->rvu_dbg.npc, rvu,
&rvu_dbg_npc_rx_miss_act_fops); &rvu_dbg_npc_rx_miss_act_fops);
if (!rvu->hw->cap.npc_exact_match_enabled)
return;
debugfs_create_file("exact_entries", 0444, rvu->rvu_dbg.npc, rvu,
&rvu_dbg_npc_exact_entries_fops);
debugfs_create_file("exact_info", 0444, rvu->rvu_dbg.npc, rvu,
&rvu_dbg_npc_exact_info_fops);
debugfs_create_file("exact_drop_cnt", 0444, rvu->rvu_dbg.npc, rvu,
&rvu_dbg_npc_exact_drop_cnt_fops);
} }
static int cpt_eng_sts_display(struct seq_file *filp, u8 eng_type) static int cpt_eng_sts_display(struct seq_file *filp, u8 eng_type)
......
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