cxgb4: Add debugfs entry to dump CIM PIF logic analyzer contents
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 7c9ad63..eb39564 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -182,6 +182,49 @@
.release = seq_release_private
};
+static int cim_pif_la_show(struct seq_file *seq, void *v, int idx)
+{
+ const u32 *p = v;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq, "Cntl ID DataBE Addr Data\n");
+ } else if (idx < CIM_PIFLA_SIZE) {
+ seq_printf(seq, " %02x %02x %04x %08x %08x%08x%08x%08x\n",
+ (p[5] >> 22) & 0xff, (p[5] >> 16) & 0x3f,
+ p[5] & 0xffff, p[4], p[3], p[2], p[1], p[0]);
+ } else {
+ if (idx == CIM_PIFLA_SIZE)
+ seq_puts(seq, "\nCntl ID Data\n");
+ seq_printf(seq, " %02x %02x %08x%08x%08x%08x\n",
+ (p[4] >> 6) & 0xff, p[4] & 0x3f,
+ p[3], p[2], p[1], p[0]);
+ }
+ return 0;
+}
+
+static int cim_pif_la_open(struct inode *inode, struct file *file)
+{
+ struct seq_tab *p;
+ struct adapter *adap = inode->i_private;
+
+ p = seq_open_tab(file, 2 * CIM_PIFLA_SIZE, 6 * sizeof(u32), 1,
+ cim_pif_la_show);
+ if (!p)
+ return -ENOMEM;
+
+ t4_cim_read_pif_la(adap, (u32 *)p->data,
+ (u32 *)p->data + 6 * CIM_PIFLA_SIZE, NULL, NULL);
+ return 0;
+}
+
+static const struct file_operations cim_pif_la_fops = {
+ .owner = THIS_MODULE,
+ .open = cim_pif_la_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_private
+};
+
static int cim_ma_la_show(struct seq_file *seq, void *v, int idx)
{
const u32 *p = v;
@@ -2174,6 +2217,7 @@
static struct t4_debugfs_entry t4_debugfs_files[] = {
{ "cim_la", &cim_la_fops, S_IRUSR, 0 },
+ { "cim_pif_la", &cim_pif_la_fops, S_IRUSR, 0 },
{ "cim_ma_la", &cim_ma_la_fops, S_IRUSR, 0 },
{ "cim_qcfg", &cim_qcfg_fops, S_IRUSR, 0 },
{ "clk", &clk_debugfs_fops, S_IRUSR, 0 },