cxgb4: Added support in debugfs to dump cim ingress bound queue 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 eb420e1..3f4b07e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -239,6 +239,42 @@
.release = single_release,
};
+static int cimq_show(struct seq_file *seq, void *v, int idx)
+{
+ const u32 *p = v;
+
+ seq_printf(seq, "%#06x: %08x %08x %08x %08x\n", idx * 16, p[0], p[1],
+ p[2], p[3]);
+ return 0;
+}
+
+static int cim_ibq_open(struct inode *inode, struct file *file)
+{
+ int ret;
+ struct seq_tab *p;
+ unsigned int qid = (uintptr_t)inode->i_private & 7;
+ struct adapter *adap = inode->i_private - qid;
+
+ p = seq_open_tab(file, CIM_IBQ_SIZE, 4 * sizeof(u32), 0, cimq_show);
+ if (!p)
+ return -ENOMEM;
+
+ ret = t4_read_cim_ibq(adap, qid, (u32 *)p->data, CIM_IBQ_SIZE * 4);
+ if (ret < 0)
+ seq_release_private(inode, file);
+ else
+ ret = 0;
+ return ret;
+}
+
+static const struct file_operations cim_ibq_fops = {
+ .owner = THIS_MODULE,
+ .open = cim_ibq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release_private
+};
+
/* Firmware Device Log dump. */
static const char * const devlog_level_strings[] = {
[FW_DEVLOG_LEVEL_EMERG] = "EMERG",
@@ -1346,6 +1382,12 @@
{ "rss_pf_config", &rss_pf_config_debugfs_fops, S_IRUSR, 0 },
{ "rss_vf_config", &rss_vf_config_debugfs_fops, S_IRUSR, 0 },
{ "sge_qinfo", &sge_qinfo_debugfs_fops, S_IRUSR, 0 },
+ { "ibq_tp0", &cim_ibq_fops, S_IRUSR, 0 },
+ { "ibq_tp1", &cim_ibq_fops, S_IRUSR, 1 },
+ { "ibq_ulp", &cim_ibq_fops, S_IRUSR, 2 },
+ { "ibq_sge0", &cim_ibq_fops, S_IRUSR, 3 },
+ { "ibq_sge1", &cim_ibq_fops, S_IRUSR, 4 },
+ { "ibq_ncsi", &cim_ibq_fops, S_IRUSR, 5 },
#if IS_ENABLED(CONFIG_IPV6)
{ "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },
#endif