 af31cb5a57
			
		
	
	
	af31cb5a57
	
	
	
		
			
			Wrong index comparison logic, found by smatch: drivers/net/wireless/ath/wil6210/debugfs.c:402 wil_txdesc_debugfs_show() warn: buffer overflow 'wil->vring_tx' 24 <= 24 Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
		
			
				
	
	
		
			738 lines
		
	
	
	
		
			20 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			738 lines
		
	
	
	
		
			20 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2012 Qualcomm Atheros, Inc.
 | |
|  *
 | |
|  * Permission to use, copy, modify, and/or distribute this software for any
 | |
|  * purpose with or without fee is hereby granted, provided that the above
 | |
|  * copyright notice and this permission notice appear in all copies.
 | |
|  *
 | |
|  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 | |
|  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 | |
|  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 | |
|  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 | |
|  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 | |
|  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 | |
|  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 | |
|  */
 | |
| 
 | |
| #include <linux/module.h>
 | |
| #include <linux/debugfs.h>
 | |
| #include <linux/seq_file.h>
 | |
| #include <linux/pci.h>
 | |
| #include <linux/rtnetlink.h>
 | |
| 
 | |
| #include "wil6210.h"
 | |
| #include "txrx.h"
 | |
| 
 | |
| /* 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,
 | |
| 			    char _s, char _h)
 | |
| {
 | |
| 	void __iomem *x = wmi_addr(wil, vring->hwtail);
 | |
| 
 | |
| 	seq_printf(s, "VRING %s = {\n", name);
 | |
| 	seq_printf(s, "  pa     = 0x%016llx\n", (unsigned long long)vring->pa);
 | |
| 	seq_printf(s, "  va     = 0x%p\n", vring->va);
 | |
| 	seq_printf(s, "  size   = %d\n", vring->size);
 | |
| 	seq_printf(s, "  swtail = %d\n", vring->swtail);
 | |
| 	seq_printf(s, "  swhead = %d\n", vring->swhead);
 | |
| 	seq_printf(s, "  hwtail = [0x%08x] -> ", vring->hwtail);
 | |
| 	if (x)
 | |
| 		seq_printf(s, "0x%08x\n", ioread32(x));
 | |
| 	else
 | |
| 		seq_printf(s, "???\n");
 | |
| 
 | |
| 	if (vring->va && (vring->size < 1025)) {
 | |
| 		uint i;
 | |
| 		for (i = 0; i < vring->size; i++) {
 | |
| 			volatile struct vring_tx_desc *d = &vring->va[i].tx;
 | |
| 			if ((i % 64) == 0 && (i != 0))
 | |
| 				seq_printf(s, "\n");
 | |
| 			seq_printf(s, "%c", (d->dma.status & BIT(0)) ?
 | |
| 					_s : (vring->ctx[i].skb ? _h : 'h'));
 | |
| 		}
 | |
| 		seq_printf(s, "\n");
 | |
| 	}
 | |
| 	seq_printf(s, "}\n");
 | |
| }
 | |
| 
 | |
| 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, '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);
 | |
| 
 | |
| 			seq_printf(s, "\n%pM CID %d TID %d\n",
 | |
| 				   wil->sta[cid].addr, cid, tid);
 | |
| 			wil_print_vring(s, wil, name, vring, '_', 'H');
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_vring_seq_open(struct inode *inode, struct file *file)
 | |
| {
 | |
| 	return single_open(file, wil_vring_debugfs_show, inode->i_private);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_vring = {
 | |
| 	.open		= wil_vring_seq_open,
 | |
| 	.release	= single_release,
 | |
| 	.read		= seq_read,
 | |
| 	.llseek		= seq_lseek,
 | |
| };
 | |
| 
 | |
| static void wil_print_ring(struct seq_file *s, const char *prefix,
 | |
| 			   void __iomem *off)
 | |
| {
 | |
| 	struct wil6210_priv *wil = s->private;
 | |
| 	struct wil6210_mbox_ring r;
 | |
| 	int rsize;
 | |
| 	uint i;
 | |
| 
 | |
| 	wil_memcpy_fromio_32(&r, off, sizeof(r));
 | |
| 	wil_mbox_ring_le2cpus(&r);
 | |
| 	/*
 | |
| 	 * we just read memory block from NIC. This memory may be
 | |
| 	 * garbage. Check validity before using it.
 | |
| 	 */
 | |
| 	rsize = r.size / sizeof(struct wil6210_mbox_ring_desc);
 | |
| 
 | |
| 	seq_printf(s, "ring %s = {\n", prefix);
 | |
| 	seq_printf(s, "  base = 0x%08x\n", r.base);
 | |
| 	seq_printf(s, "  size = 0x%04x bytes -> %d entries\n", r.size, rsize);
 | |
| 	seq_printf(s, "  tail = 0x%08x\n", r.tail);
 | |
| 	seq_printf(s, "  head = 0x%08x\n", r.head);
 | |
| 	seq_printf(s, "  entry size = %d\n", r.entry_size);
 | |
| 
 | |
| 	if (r.size % sizeof(struct wil6210_mbox_ring_desc)) {
 | |
| 		seq_printf(s, "  ??? size is not multiple of %zd, garbage?\n",
 | |
| 			   sizeof(struct wil6210_mbox_ring_desc));
 | |
| 		goto out;
 | |
| 	}
 | |
| 
 | |
| 	if (!wmi_addr(wil, r.base) ||
 | |
| 	    !wmi_addr(wil, r.tail) ||
 | |
| 	    !wmi_addr(wil, r.head)) {
 | |
| 		seq_printf(s, "  ??? pointers are garbage?\n");
 | |
| 		goto out;
 | |
| 	}
 | |
| 
 | |
| 	for (i = 0; i < rsize; i++) {
 | |
| 		struct wil6210_mbox_ring_desc d;
 | |
| 		struct wil6210_mbox_hdr hdr;
 | |
| 		size_t delta = i * sizeof(d);
 | |
| 		void __iomem *x = wil->csr + HOSTADDR(r.base) + delta;
 | |
| 
 | |
| 		wil_memcpy_fromio_32(&d, x, sizeof(d));
 | |
| 
 | |
| 		seq_printf(s, "  [%2x] %s %s%s 0x%08x", i,
 | |
| 			   d.sync ? "F" : "E",
 | |
| 			   (r.tail - r.base == delta) ? "t" : " ",
 | |
| 			   (r.head - r.base == delta) ? "h" : " ",
 | |
| 			   le32_to_cpu(d.addr));
 | |
| 		if (0 == wmi_read_hdr(wil, d.addr, &hdr)) {
 | |
| 			u16 len = le16_to_cpu(hdr.len);
 | |
| 			seq_printf(s, " -> %04x %04x %04x %02x\n",
 | |
| 				   le16_to_cpu(hdr.seq), len,
 | |
| 				   le16_to_cpu(hdr.type), hdr.flags);
 | |
| 			if (len <= MAX_MBOXITEM_SIZE) {
 | |
| 				int n = 0;
 | |
| 				char printbuf[16 * 3 + 2];
 | |
| 				unsigned char databuf[MAX_MBOXITEM_SIZE];
 | |
| 				void __iomem *src = wmi_buffer(wil, d.addr) +
 | |
| 					sizeof(struct wil6210_mbox_hdr);
 | |
| 				/*
 | |
| 				 * No need to check @src for validity -
 | |
| 				 * we already validated @d.addr while
 | |
| 				 * reading header
 | |
| 				 */
 | |
| 				wil_memcpy_fromio_32(databuf, src, len);
 | |
| 				while (n < len) {
 | |
| 					int l = min(len - n, 16);
 | |
| 					hex_dump_to_buffer(databuf + n, l,
 | |
| 							   16, 1, printbuf,
 | |
| 							   sizeof(printbuf),
 | |
| 							   false);
 | |
| 					seq_printf(s, "      : %s\n", printbuf);
 | |
| 					n += l;
 | |
| 				}
 | |
| 			}
 | |
| 		} else {
 | |
| 			seq_printf(s, "\n");
 | |
| 		}
 | |
| 	}
 | |
|  out:
 | |
| 	seq_printf(s, "}\n");
 | |
| }
 | |
| 
 | |
| static int wil_mbox_debugfs_show(struct seq_file *s, void *data)
 | |
| {
 | |
| 	struct wil6210_priv *wil = s->private;
 | |
| 
 | |
| 	wil_print_ring(s, "tx", wil->csr + HOST_MBOX +
 | |
| 		       offsetof(struct wil6210_mbox_ctl, tx));
 | |
| 	wil_print_ring(s, "rx", wil->csr + HOST_MBOX +
 | |
| 		       offsetof(struct wil6210_mbox_ctl, rx));
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_mbox_seq_open(struct inode *inode, struct file *file)
 | |
| {
 | |
| 	return single_open(file, wil_mbox_debugfs_show, inode->i_private);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_mbox = {
 | |
| 	.open		= wil_mbox_seq_open,
 | |
| 	.release	= single_release,
 | |
| 	.read		= seq_read,
 | |
| 	.llseek		= seq_lseek,
 | |
| };
 | |
| 
 | |
| static int wil_debugfs_iomem_x32_set(void *data, u64 val)
 | |
| {
 | |
| 	iowrite32(val, (void __iomem *)data);
 | |
| 	wmb(); /* make sure write propagated to HW */
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_debugfs_iomem_x32_get(void *data, u64 *val)
 | |
| {
 | |
| 	*val = ioread32((void __iomem *)data);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| DEFINE_SIMPLE_ATTRIBUTE(fops_iomem_x32, wil_debugfs_iomem_x32_get,
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| 			wil_debugfs_iomem_x32_set, "0x%08llx\n");
 | |
| 
 | |
| static struct dentry *wil_debugfs_create_iomem_x32(const char *name,
 | |
| 						   umode_t mode,
 | |
| 						   struct dentry *parent,
 | |
| 						   void __iomem *value)
 | |
| {
 | |
| 	return debugfs_create_file(name, mode, parent, (void * __force)value,
 | |
| 				   &fops_iomem_x32);
 | |
| }
 | |
| 
 | |
| static int wil6210_debugfs_create_ISR(struct wil6210_priv *wil,
 | |
| 				      const char *name,
 | |
| 				      struct dentry *parent, u32 off)
 | |
| {
 | |
| 	struct dentry *d = debugfs_create_dir(name, parent);
 | |
| 
 | |
| 	if (IS_ERR_OR_NULL(d))
 | |
| 		return -ENODEV;
 | |
| 
 | |
| 	wil_debugfs_create_iomem_x32("ICC", S_IRUGO | S_IWUSR, d,
 | |
| 				     wil->csr + off);
 | |
| 	wil_debugfs_create_iomem_x32("ICR", S_IRUGO | S_IWUSR, d,
 | |
| 				     wil->csr + off + 4);
 | |
| 	wil_debugfs_create_iomem_x32("ICM", S_IRUGO | S_IWUSR, d,
 | |
| 				     wil->csr + off + 8);
 | |
| 	wil_debugfs_create_iomem_x32("ICS", S_IWUSR, d,
 | |
| 				     wil->csr + off + 12);
 | |
| 	wil_debugfs_create_iomem_x32("IMV", S_IRUGO | S_IWUSR, d,
 | |
| 				     wil->csr + off + 16);
 | |
| 	wil_debugfs_create_iomem_x32("IMS", S_IWUSR, d,
 | |
| 				     wil->csr + off + 20);
 | |
| 	wil_debugfs_create_iomem_x32("IMC", S_IWUSR, d,
 | |
| 				     wil->csr + off + 24);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil6210_debugfs_create_pseudo_ISR(struct wil6210_priv *wil,
 | |
| 					     struct dentry *parent)
 | |
| {
 | |
| 	struct dentry *d = debugfs_create_dir("PSEUDO_ISR", parent);
 | |
| 
 | |
| 	if (IS_ERR_OR_NULL(d))
 | |
| 		return -ENODEV;
 | |
| 
 | |
| 	wil_debugfs_create_iomem_x32("CAUSE", S_IRUGO, d, wil->csr +
 | |
| 				     HOSTADDR(RGF_DMA_PSEUDO_CAUSE));
 | |
| 	wil_debugfs_create_iomem_x32("MASK_SW", S_IRUGO, d, wil->csr +
 | |
| 				     HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_SW));
 | |
| 	wil_debugfs_create_iomem_x32("MASK_FW", S_IRUGO, d, wil->csr +
 | |
| 				     HOSTADDR(RGF_DMA_PSEUDO_CAUSE_MASK_FW));
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil6210_debugfs_create_ITR_CNT(struct wil6210_priv *wil,
 | |
| 					  struct dentry *parent)
 | |
| {
 | |
| 	struct dentry *d = debugfs_create_dir("ITR_CNT", parent);
 | |
| 
 | |
| 	if (IS_ERR_OR_NULL(d))
 | |
| 		return -ENODEV;
 | |
| 
 | |
| 	wil_debugfs_create_iomem_x32("TRSH", S_IRUGO, d, wil->csr +
 | |
| 				     HOSTADDR(RGF_DMA_ITR_CNT_TRSH));
 | |
| 	wil_debugfs_create_iomem_x32("DATA", S_IRUGO, d, wil->csr +
 | |
| 				     HOSTADDR(RGF_DMA_ITR_CNT_DATA));
 | |
| 	wil_debugfs_create_iomem_x32("CTL", S_IRUGO, d, wil->csr +
 | |
| 				     HOSTADDR(RGF_DMA_ITR_CNT_CRL));
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_memread_debugfs_show(struct seq_file *s, void *data)
 | |
| {
 | |
| 	struct wil6210_priv *wil = s->private;
 | |
| 	void __iomem *a = wmi_buffer(wil, cpu_to_le32(mem_addr));
 | |
| 
 | |
| 	if (a)
 | |
| 		seq_printf(s, "[0x%08x] = 0x%08x\n", mem_addr, ioread32(a));
 | |
| 	else
 | |
| 		seq_printf(s, "[0x%08x] = INVALID\n", mem_addr);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_memread_seq_open(struct inode *inode, struct file *file)
 | |
| {
 | |
| 	return single_open(file, wil_memread_debugfs_show, inode->i_private);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_memread = {
 | |
| 	.open		= wil_memread_seq_open,
 | |
| 	.release	= single_release,
 | |
| 	.read		= seq_read,
 | |
| 	.llseek		= seq_lseek,
 | |
| };
 | |
| 
 | |
| static ssize_t wil_read_file_ioblob(struct file *file, char __user *user_buf,
 | |
| 				size_t count, loff_t *ppos)
 | |
| {
 | |
| 	enum { max_count = 4096 };
 | |
| 	struct debugfs_blob_wrapper *blob = file->private_data;
 | |
| 	loff_t pos = *ppos;
 | |
| 	size_t available = blob->size;
 | |
| 	void *buf;
 | |
| 	size_t ret;
 | |
| 
 | |
| 	if (pos < 0)
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	if (pos >= available || !count)
 | |
| 		return 0;
 | |
| 
 | |
| 	if (count > available - pos)
 | |
| 		count = available - pos;
 | |
| 	if (count > max_count)
 | |
| 		count = max_count;
 | |
| 
 | |
| 	buf = kmalloc(count, GFP_KERNEL);
 | |
| 	if (!buf)
 | |
| 		return -ENOMEM;
 | |
| 
 | |
| 	wil_memcpy_fromio_32(buf, (const volatile void __iomem *)blob->data +
 | |
| 			     pos, count);
 | |
| 
 | |
| 	ret = copy_to_user(user_buf, buf, count);
 | |
| 	kfree(buf);
 | |
| 	if (ret == count)
 | |
| 		return -EFAULT;
 | |
| 
 | |
| 	count -= ret;
 | |
| 	*ppos = pos + count;
 | |
| 
 | |
| 	return count;
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_ioblob = {
 | |
| 	.read =		wil_read_file_ioblob,
 | |
| 	.open =		simple_open,
 | |
| 	.llseek =	default_llseek,
 | |
| };
 | |
| 
 | |
| static
 | |
| struct dentry *wil_debugfs_create_ioblob(const char *name,
 | |
| 					 umode_t mode,
 | |
| 					 struct dentry *parent,
 | |
| 					 struct debugfs_blob_wrapper *blob)
 | |
| {
 | |
| 	return debugfs_create_file(name, mode, parent, blob, &fops_ioblob);
 | |
| }
 | |
| /*---reset---*/
 | |
| static ssize_t wil_write_file_reset(struct file *file, const char __user *buf,
 | |
| 				    size_t len, loff_t *ppos)
 | |
| {
 | |
| 	struct wil6210_priv *wil = file->private_data;
 | |
| 	struct net_device *ndev = wil_to_ndev(wil);
 | |
| 
 | |
| 	/**
 | |
| 	 * BUG:
 | |
| 	 * this code does NOT sync device state with the rest of system
 | |
| 	 * use with care, debug only!!!
 | |
| 	 */
 | |
| 	rtnl_lock();
 | |
| 	dev_close(ndev);
 | |
| 	ndev->flags &= ~IFF_UP;
 | |
| 	rtnl_unlock();
 | |
| 	wil_reset(wil);
 | |
| 
 | |
| 	return len;
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_reset = {
 | |
| 	.write = wil_write_file_reset,
 | |
| 	.open  = simple_open,
 | |
| };
 | |
| 
 | |
| /*---------Tx/Rx descriptor------------*/
 | |
| static int wil_txdesc_debugfs_show(struct seq_file *s, void *data)
 | |
| {
 | |
| 	struct wil6210_priv *wil = s->private;
 | |
| 	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) {
 | |
| 		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;
 | |
| 
 | |
| 		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",
 | |
| 			   u[4], u[5], u[6], u[7]);
 | |
| 		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;
 | |
| 			}
 | |
| 		}
 | |
| 		seq_printf(s, "}\n");
 | |
| 	} else {
 | |
| 		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;
 | |
| }
 | |
| 
 | |
| static int wil_txdesc_seq_open(struct inode *inode, struct file *file)
 | |
| {
 | |
| 	return single_open(file, wil_txdesc_debugfs_show, inode->i_private);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_txdesc = {
 | |
| 	.open		= wil_txdesc_seq_open,
 | |
| 	.release	= single_release,
 | |
| 	.read		= seq_read,
 | |
| 	.llseek		= seq_lseek,
 | |
| };
 | |
| 
 | |
| /*---------beamforming------------*/
 | |
| static int wil_bf_debugfs_show(struct seq_file *s, void *data)
 | |
| {
 | |
| 	struct wil6210_priv *wil = s->private;
 | |
| 	seq_printf(s,
 | |
| 		   "TSF : 0x%016llx\n"
 | |
| 		   "TxMCS : %d\n"
 | |
| 		   "Sectors(rx:tx) my %2d:%2d peer %2d:%2d\n",
 | |
| 		   wil->stats.tsf, wil->stats.bf_mcs,
 | |
| 		   wil->stats.my_rx_sector, wil->stats.my_tx_sector,
 | |
| 		   wil->stats.peer_rx_sector, wil->stats.peer_tx_sector);
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_bf_seq_open(struct inode *inode, struct file *file)
 | |
| {
 | |
| 	return single_open(file, wil_bf_debugfs_show, inode->i_private);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_bf = {
 | |
| 	.open		= wil_bf_seq_open,
 | |
| 	.release	= single_release,
 | |
| 	.read		= seq_read,
 | |
| 	.llseek		= seq_lseek,
 | |
| };
 | |
| /*---------SSID------------*/
 | |
| static ssize_t wil_read_file_ssid(struct file *file, char __user *user_buf,
 | |
| 				  size_t count, loff_t *ppos)
 | |
| {
 | |
| 	struct wil6210_priv *wil = file->private_data;
 | |
| 	struct wireless_dev *wdev = wil_to_wdev(wil);
 | |
| 
 | |
| 	return simple_read_from_buffer(user_buf, count, ppos,
 | |
| 				       wdev->ssid, wdev->ssid_len);
 | |
| }
 | |
| 
 | |
| static ssize_t wil_write_file_ssid(struct file *file, const char __user *buf,
 | |
| 				   size_t count, loff_t *ppos)
 | |
| {
 | |
| 	struct wil6210_priv *wil = file->private_data;
 | |
| 	struct wireless_dev *wdev = wil_to_wdev(wil);
 | |
| 	struct net_device *ndev = wil_to_ndev(wil);
 | |
| 
 | |
| 	if (*ppos != 0) {
 | |
| 		wil_err(wil, "Unable to set SSID substring from [%d]\n",
 | |
| 			(int)*ppos);
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 
 | |
| 	if (count > sizeof(wdev->ssid)) {
 | |
| 		wil_err(wil, "SSID too long, len = %d\n", (int)count);
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 	if (netif_running(ndev)) {
 | |
| 		wil_err(wil, "Unable to change SSID on running interface\n");
 | |
| 		return -EINVAL;
 | |
| 	}
 | |
| 
 | |
| 	wdev->ssid_len = count;
 | |
| 	return simple_write_to_buffer(wdev->ssid, wdev->ssid_len, ppos,
 | |
| 				      buf, count);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_ssid = {
 | |
| 	.read = wil_read_file_ssid,
 | |
| 	.write = wil_write_file_ssid,
 | |
| 	.open  = simple_open,
 | |
| };
 | |
| 
 | |
| /*---------temp------------*/
 | |
| static void print_temp(struct seq_file *s, const char *prefix, u32 t)
 | |
| {
 | |
| 	switch (t) {
 | |
| 	case 0:
 | |
| 	case ~(u32)0:
 | |
| 		seq_printf(s, "%s N/A\n", prefix);
 | |
| 	break;
 | |
| 	default:
 | |
| 		seq_printf(s, "%s %d.%03d\n", prefix, t / 1000, t % 1000);
 | |
| 		break;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| static int wil_temp_debugfs_show(struct seq_file *s, void *data)
 | |
| {
 | |
| 	struct wil6210_priv *wil = s->private;
 | |
| 	u32 t_m, t_r;
 | |
| 
 | |
| 	int rc = wmi_get_temperature(wil, &t_m, &t_r);
 | |
| 	if (rc) {
 | |
| 		seq_printf(s, "Failed\n");
 | |
| 		return 0;
 | |
| 	}
 | |
| 
 | |
| 	print_temp(s, "MAC temperature   :", t_m);
 | |
| 	print_temp(s, "Radio temperature :", t_r);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int wil_temp_seq_open(struct inode *inode, struct file *file)
 | |
| {
 | |
| 	return single_open(file, wil_temp_debugfs_show, inode->i_private);
 | |
| }
 | |
| 
 | |
| static const struct file_operations fops_temp = {
 | |
| 	.open		= wil_temp_seq_open,
 | |
| 	.release	= single_release,
 | |
| 	.read		= seq_read,
 | |
| 	.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\n", i, p->addr, status);
 | |
| 
 | |
| 		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)
 | |
| {
 | |
| 	struct dentry *dbg = wil->debug = debugfs_create_dir(WIL_NAME,
 | |
| 			wil_to_wiphy(wil)->debugfsdir);
 | |
| 
 | |
| 	if (IS_ERR_OR_NULL(dbg))
 | |
| 		return -ENODEV;
 | |
| 
 | |
| 	debugfs_create_file("mbox", S_IRUGO, dbg, wil, &fops_mbox);
 | |
| 	debugfs_create_file("vrings", S_IRUGO, dbg, wil, &fops_vring);
 | |
| 	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,
 | |
| 			   &wil->secure_pcp);
 | |
| 
 | |
| 	wil6210_debugfs_create_ISR(wil, "USER_ICR", dbg,
 | |
| 				   HOSTADDR(RGF_USER_USER_ICR));
 | |
| 	wil6210_debugfs_create_ISR(wil, "DMA_EP_TX_ICR", dbg,
 | |
| 				   HOSTADDR(RGF_DMA_EP_TX_ICR));
 | |
| 	wil6210_debugfs_create_ISR(wil, "DMA_EP_RX_ICR", dbg,
 | |
| 				   HOSTADDR(RGF_DMA_EP_RX_ICR));
 | |
| 	wil6210_debugfs_create_ISR(wil, "DMA_EP_MISC_ICR", dbg,
 | |
| 				   HOSTADDR(RGF_DMA_EP_MISC_ICR));
 | |
| 	wil6210_debugfs_create_pseudo_ISR(wil, dbg);
 | |
| 	wil6210_debugfs_create_ITR_CNT(wil, dbg);
 | |
| 
 | |
| 	debugfs_create_u32("mem_addr", S_IRUGO | S_IWUSR, dbg, &mem_addr);
 | |
| 	debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread);
 | |
| 
 | |
| 	debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset);
 | |
| 	debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp);
 | |
| 
 | |
| 	wil->rgf_blob.data = (void * __force)wil->csr + 0;
 | |
| 	wil->rgf_blob.size = 0xa000;
 | |
| 	wil_debugfs_create_ioblob("blob_rgf", S_IRUGO, dbg, &wil->rgf_blob);
 | |
| 
 | |
| 	wil->fw_code_blob.data = (void * __force)wil->csr + 0x40000;
 | |
| 	wil->fw_code_blob.size = 0x40000;
 | |
| 	wil_debugfs_create_ioblob("blob_fw_code", S_IRUGO, dbg,
 | |
| 				  &wil->fw_code_blob);
 | |
| 
 | |
| 	wil->fw_data_blob.data = (void * __force)wil->csr + 0x80000;
 | |
| 	wil->fw_data_blob.size = 0x8000;
 | |
| 	wil_debugfs_create_ioblob("blob_fw_data", S_IRUGO, dbg,
 | |
| 				  &wil->fw_data_blob);
 | |
| 
 | |
| 	wil->fw_peri_blob.data = (void * __force)wil->csr + 0x88000;
 | |
| 	wil->fw_peri_blob.size = 0x18000;
 | |
| 	wil_debugfs_create_ioblob("blob_fw_peri", S_IRUGO, dbg,
 | |
| 				  &wil->fw_peri_blob);
 | |
| 
 | |
| 	wil->uc_code_blob.data = (void * __force)wil->csr + 0xa0000;
 | |
| 	wil->uc_code_blob.size = 0x10000;
 | |
| 	wil_debugfs_create_ioblob("blob_uc_code", S_IRUGO, dbg,
 | |
| 				  &wil->uc_code_blob);
 | |
| 
 | |
| 	wil->uc_data_blob.data = (void * __force)wil->csr + 0xb0000;
 | |
| 	wil->uc_data_blob.size = 0x4000;
 | |
| 	wil_debugfs_create_ioblob("blob_uc_data", S_IRUGO, dbg,
 | |
| 				  &wil->uc_data_blob);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| void wil6210_debugfs_remove(struct wil6210_priv *wil)
 | |
| {
 | |
| 	debugfs_remove_recursive(wil->debug);
 | |
| 	wil->debug = NULL;
 | |
| }
 |