netdev - [PATCH net-next] cxgb4: Report tid start range correctly for T6

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Date:   Mon, 18 Dec 2017 19:45:22 +0530
From:   Ganesh Goudar <ganeshgr@...lsio.com>
To:     netdev@...r.kernel.org, davem@...emloft.net
Cc:     nirranjan@...lsio.com, indranil@...lsio.com, venkatesh@...lsio.com,
        Ganesh Goudar <ganeshgr@...lsio.com>,
        Arjun Vynipadath <arjun@...lsio.com>
Subject: [PATCH net-next] cxgb4: Report tid start range correctly for T6

For T6, tid start range should be read from
LE_DB_ACTIVE_TABLE_START_INDEX_A register.

Signed-off-by: Arjun Vynipadath <arjun@...lsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@...lsio.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 4956e42..d8efcd9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2668,10 +2668,14 @@ static const struct file_operations mem_debugfs_fops = {
 
 static int tid_info_show(struct seq_file *seq, void *v)
 {
+	unsigned int tid_start = 0;
 	struct adapter *adap = seq->private;
 	const struct tid_info *t = &adap->tids;
 	enum chip_type chip = CHELSIO_CHIP_VERSION(adap->params.chip);
 
+	if (chip > CHELSIO_T5)
+		tid_start = t4_read_reg(adap, LE_DB_ACTIVE_TABLE_START_INDEX_A);
+
 	if (t4_read_reg(adap, LE_DB_CONFIG_A) & HASHEN_F) {
 		unsigned int sb;
 		seq_printf(seq, "Connections in use: %u\n",
@@ -2683,8 +2687,8 @@ static int tid_info_show(struct seq_file *seq, void *v)
 			sb = t4_read_reg(adap, LE_DB_SRVR_START_INDEX_A);
 
 		if (sb) {
-			seq_printf(seq, "TID range: 0..%u/%u..%u", sb - 1,
-				   adap->tids.hash_base,
+			seq_printf(seq, "TID range: %u..%u/%u..%u", tid_start,
+				   sb - 1, adap->tids.hash_base,
 				   t->ntids - 1);
 			seq_printf(seq, ", in use: %u/%u\n",
 				   atomic_read(&t->tids_in_use),
@@ -2709,7 +2713,8 @@ static int tid_info_show(struct seq_file *seq, void *v)
 		seq_printf(seq, "Connections in use: %u\n",
 			   atomic_read(&t->conns_in_use));
 
-		seq_printf(seq, "TID range: 0..%u", t->ntids - 1);
+		seq_printf(seq, "TID range: %u..%u", tid_start,
+			   tid_start + t->ntids - 1);
 		seq_printf(seq, ", in use: %u\n",
 			   atomic_read(&t->tids_in_use));
 	}
-- 
2.1.0