[net-next v4 PATCH 7/7] net: prp: enhance debugfs to display PRP info
From: Murali Karicheri <hidden>
Date: 2020-07-20 16:58:19
Also in:
linux-api, lkml
Subsystem:
hsr network protocol, networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Print PRP specific information from node table as part of debugfs node table display. Also display the node as DAN-H or DAN-P depending on the info from node table. Signed-off-by: Murali Karicheri <redacted> --- net/hsr/hsr_debugfs.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-)
diff --git a/net/hsr/hsr_debugfs.c b/net/hsr/hsr_debugfs.c
index c1932c0a15be..3b6f675bd55a 100644
--- a/net/hsr/hsr_debugfs.c
+++ b/net/hsr/hsr_debugfs.c@@ -24,7 +24,7 @@ static struct dentry *hsr_debugfs_root_dir; static void print_mac_address(struct seq_file *sfp, unsigned char *mac) { - seq_printf(sfp, "%02x:%02x:%02x:%02x:%02x:%02x:", + seq_printf(sfp, "%02x:%02x:%02x:%02x:%02x:%02x ", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); }
@@ -35,20 +35,32 @@ hsr_node_table_show(struct seq_file *sfp, void *data) struct hsr_priv *priv = (struct hsr_priv *)sfp->private; struct hsr_node *node; - seq_puts(sfp, "Node Table entries\n"); - seq_puts(sfp, "MAC-Address-A, MAC-Address-B, time_in[A], "); - seq_puts(sfp, "time_in[B], Address-B port\n"); + seq_printf(sfp, "Node Table entries for (%s) device\n", + (priv->prot_version == PRP_V1 ? "PRP" : "HSR")); + seq_puts(sfp, "MAC-Address-A, MAC-Address-B, time_in[A], "); + seq_puts(sfp, "time_in[B], Address-B port, "); + if (priv->prot_version == PRP_V1) + seq_puts(sfp, "SAN-A, SAN-B, DAN-P\n"); + else + seq_puts(sfp, "DAN-H\n"); + rcu_read_lock(); list_for_each_entry_rcu(node, &priv->node_db, mac_list) { /* skip self node */ if (hsr_addr_is_self(priv, node->macaddress_A)) continue; print_mac_address(sfp, &node->macaddress_A[0]); - seq_puts(sfp, " "); print_mac_address(sfp, &node->macaddress_B[0]); - seq_printf(sfp, "0x%lx, ", node->time_in[HSR_PT_SLAVE_A]); - seq_printf(sfp, "0x%lx ", node->time_in[HSR_PT_SLAVE_B]); - seq_printf(sfp, "0x%x\n", node->addr_B_port); + seq_printf(sfp, "%10lx, ", node->time_in[HSR_PT_SLAVE_A]); + seq_printf(sfp, "%10lx, ", node->time_in[HSR_PT_SLAVE_B]); + seq_printf(sfp, "%14x, ", node->addr_B_port); + + if (priv->prot_version == PRP_V1) + seq_printf(sfp, "%5x, %5x, %5x\n", + node->san_a, node->san_b, + (node->san_a == 0 && node->san_b == 0)); + else + seq_printf(sfp, "%5x\n", 1); } rcu_read_unlock(); return 0;
@@ -57,7 +69,8 @@ hsr_node_table_show(struct seq_file *sfp, void *data) /* hsr_node_table_open - Open the node_table file * * Description: - * This routine opens a debugfs file node_table of specific hsr device + * This routine opens a debugfs file node_table of specific hsr + * or prp device */ static int hsr_node_table_open(struct inode *inode, struct file *filp)
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2.17.1