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path: root/drivers/net/wireless/ath/wil6210/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/ath/wil6210/debugfs.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/debugfs.c181
1 files changed, 148 insertions, 33 deletions
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 1caa31992a7e..ecdabe4adec3 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -26,9 +26,11 @@
/* Nasty hack. Better have per device instances */
static u32 mem_addr;
static u32 dbg_txdesc_index;
+static u32 dbg_vring_index; /* 24+ for Rx, 0..23 for Tx */
static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
- const char *name, struct vring *vring)
+ const char *name, struct vring *vring,
+ char _s, char _h)
{
void __iomem *x = wmi_addr(wil, vring->hwtail);
@@ -50,8 +52,8 @@ static void wil_print_vring(struct seq_file *s, struct wil6210_priv *wil,
volatile struct vring_tx_desc *d = &vring->va[i].tx;
if ((i % 64) == 0 && (i != 0))
seq_printf(s, "\n");
- seq_printf(s, "%s", (d->dma.status & BIT(0)) ?
- "S" : (vring->ctx[i].skb ? "H" : "h"));
+ seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
+ _s : (vring->ctx[i].skb ? _h : 'h'));
}
seq_printf(s, "\n");
}
@@ -63,14 +65,19 @@ static int wil_vring_debugfs_show(struct seq_file *s, void *data)
uint i;
struct wil6210_priv *wil = s->private;
- wil_print_vring(s, wil, "rx", &wil->vring_rx);
+ wil_print_vring(s, wil, "rx", &wil->vring_rx, 'S', '_');
for (i = 0; i < ARRAY_SIZE(wil->vring_tx); i++) {
struct vring *vring = &(wil->vring_tx[i]);
if (vring->va) {
+ int cid = wil->vring2cid_tid[i][0];
+ int tid = wil->vring2cid_tid[i][1];
char name[10];
snprintf(name, sizeof(name), "tx_%2d", i);
- wil_print_vring(s, wil, name, vring);
+
+ seq_printf(s, "\n%pM CID %d TID %d\n",
+ wil->sta[cid].addr, cid, tid);
+ wil_print_vring(s, wil, name, vring, '_', 'H');
}
}
@@ -390,25 +397,78 @@ static const struct file_operations fops_reset = {
.write = wil_write_file_reset,
.open = simple_open,
};
-/*---------Tx descriptor------------*/
+static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
+ const char *prefix)
+{
+ char printbuf[16 * 3 + 2];
+ int i = 0;
+ while (i < len) {
+ int l = min(len - i, 16);
+ hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
+ sizeof(printbuf), false);
+ seq_printf(s, "%s%s\n", prefix, printbuf);
+ i += l;
+ }
+}
+
+static void wil_seq_print_skb(struct seq_file *s, struct sk_buff *skb)
+{
+ int i = 0;
+ int len = skb_headlen(skb);
+ void *p = skb->data;
+ int nr_frags = skb_shinfo(skb)->nr_frags;
+
+ seq_printf(s, " len = %d\n", len);
+ wil_seq_hexdump(s, p, len, " : ");
+
+ if (nr_frags) {
+ seq_printf(s, " nr_frags = %d\n", nr_frags);
+ for (i = 0; i < nr_frags; i++) {
+ const struct skb_frag_struct *frag =
+ &skb_shinfo(skb)->frags[i];
+
+ len = skb_frag_size(frag);
+ p = skb_frag_address_safe(frag);
+ seq_printf(s, " [%2d] : len = %d\n", i, len);
+ wil_seq_hexdump(s, p, len, " : ");
+ }
+ }
+}
+
+/*---------Tx/Rx descriptor------------*/
static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
{
struct wil6210_priv *wil = s->private;
- struct vring *vring = &(wil->vring_tx[0]);
+ struct vring *vring;
+ bool tx = (dbg_vring_index < WIL6210_MAX_TX_RINGS);
+ if (tx)
+ vring = &(wil->vring_tx[dbg_vring_index]);
+ else
+ vring = &wil->vring_rx;
if (!vring->va) {
- seq_printf(s, "No Tx VRING\n");
+ if (tx)
+ seq_printf(s, "No Tx[%2d] VRING\n", dbg_vring_index);
+ else
+ seq_puts(s, "No Rx VRING\n");
return 0;
}
if (dbg_txdesc_index < vring->size) {
+ /* use struct vring_tx_desc for Rx as well,
+ * only field used, .dma.length, is the same
+ */
volatile struct vring_tx_desc *d =
&(vring->va[dbg_txdesc_index].tx);
volatile u32 *u = (volatile u32 *)d;
struct sk_buff *skb = vring->ctx[dbg_txdesc_index].skb;
- seq_printf(s, "Tx[%3d] = {\n", dbg_txdesc_index);
+ if (tx)
+ seq_printf(s, "Tx[%2d][%3d] = {\n", dbg_vring_index,
+ dbg_txdesc_index);
+ else
+ seq_printf(s, "Rx[%3d] = {\n", dbg_txdesc_index);
seq_printf(s, " MAC = 0x%08x 0x%08x 0x%08x 0x%08x\n",
u[0], u[1], u[2], u[3]);
seq_printf(s, " DMA = 0x%08x 0x%08x 0x%08x 0x%08x\n",
@@ -416,31 +476,19 @@ static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
seq_printf(s, " SKB = %p\n", skb);
if (skb) {
- char printbuf[16 * 3 + 2];
- int i = 0;
- int len = le16_to_cpu(d->dma.length);
- void *p = skb->data;
-
- if (len != skb_headlen(skb)) {
- seq_printf(s, "!!! len: desc = %d skb = %d\n",
- len, skb_headlen(skb));
- len = min_t(int, len, skb_headlen(skb));
- }
-
- seq_printf(s, " len = %d\n", len);
-
- while (i < len) {
- int l = min(len - i, 16);
- hex_dump_to_buffer(p + i, l, 16, 1, printbuf,
- sizeof(printbuf), false);
- seq_printf(s, " : %s\n", printbuf);
- i += l;
- }
+ skb_get(skb);
+ wil_seq_print_skb(s, skb);
+ kfree_skb(skb);
}
seq_printf(s, "}\n");
} else {
- seq_printf(s, "TxDesc index (%d) >= size (%d)\n",
- dbg_txdesc_index, vring->size);
+ if (tx)
+ seq_printf(s, "[%2d] TxDesc index (%d) >= size (%d)\n",
+ dbg_vring_index, dbg_txdesc_index,
+ vring->size);
+ else
+ seq_printf(s, "RxDesc index (%d) >= size (%d)\n",
+ dbg_txdesc_index, vring->size);
}
return 0;
@@ -570,6 +618,69 @@ static const struct file_operations fops_temp = {
.llseek = seq_lseek,
};
+/*---------Station matrix------------*/
+static void wil_print_rxtid(struct seq_file *s, struct wil_tid_ampdu_rx *r)
+{
+ int i;
+ u16 index = ((r->head_seq_num - r->ssn) & 0xfff) % r->buf_size;
+ seq_printf(s, "0x%03x [", r->head_seq_num);
+ for (i = 0; i < r->buf_size; i++) {
+ if (i == index)
+ seq_printf(s, "%c", r->reorder_buf[i] ? 'O' : '|');
+ else
+ seq_printf(s, "%c", r->reorder_buf[i] ? '*' : '_');
+ }
+ seq_puts(s, "]\n");
+}
+
+static int wil_sta_debugfs_show(struct seq_file *s, void *data)
+{
+ struct wil6210_priv *wil = s->private;
+ int i, tid;
+
+ for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
+ struct wil_sta_info *p = &wil->sta[i];
+ char *status = "unknown";
+ switch (p->status) {
+ case wil_sta_unused:
+ status = "unused ";
+ break;
+ case wil_sta_conn_pending:
+ status = "pending ";
+ break;
+ case wil_sta_connected:
+ status = "connected";
+ break;
+ }
+ seq_printf(s, "[%d] %pM %s%s\n", i, p->addr, status,
+ (p->data_port_open ? " data_port_open" : ""));
+
+ if (p->status == wil_sta_connected) {
+ for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
+ struct wil_tid_ampdu_rx *r = p->tid_rx[tid];
+ if (r) {
+ seq_printf(s, "[%2d] ", tid);
+ wil_print_rxtid(s, r);
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int wil_sta_seq_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, wil_sta_debugfs_show, inode->i_private);
+}
+
+static const struct file_operations fops_sta = {
+ .open = wil_sta_seq_open,
+ .release = single_release,
+ .read = seq_read,
+ .llseek = seq_lseek,
+};
+
/*----------------*/
int wil6210_debugfs_init(struct wil6210_priv *wil)
{
@@ -581,9 +692,13 @@ int wil6210_debugfs_init(struct wil6210_priv *wil)
debugfs_create_file("mbox", S_IRUGO, dbg, wil, &fops_mbox);
debugfs_create_file("vrings", S_IRUGO, dbg, wil, &fops_vring);
- debugfs_create_file("txdesc", S_IRUGO, dbg, wil, &fops_txdesc);
- debugfs_create_u32("txdesc_index", S_IRUGO | S_IWUSR, dbg,
+ debugfs_create_file("stations", S_IRUGO, dbg, wil, &fops_sta);
+ debugfs_create_file("desc", S_IRUGO, dbg, wil, &fops_txdesc);
+ debugfs_create_u32("desc_index", S_IRUGO | S_IWUSR, dbg,
&dbg_txdesc_index);
+ debugfs_create_u32("vring_index", S_IRUGO | S_IWUSR, dbg,
+ &dbg_vring_index);
+
debugfs_create_file("bf", S_IRUGO, dbg, wil, &fops_bf);
debugfs_create_file("ssid", S_IRUGO | S_IWUSR, dbg, wil, &fops_ssid);
debugfs_create_u32("secure_pcp", S_IRUGO | S_IWUSR, dbg,
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 21:35:17 +0300