[PATCH 00/11] wil6210 patches

[PATCH 00/11] wil6210 patches

[Maya Erez]

The following set of patces include multiple wil6210 bug fixes.

Ahmad Masri (4):
  wil6210: enlarge Tx status ring size
  wil6210: increase the frequency of status ring hw tail update
  wil6210: set WIL_WMI_CALL_GENERAL_TO_MS as wmi_call timeout
  wil6210: drop old event after wmi_call timeout

Alexei Avshalom Lazar (3):
  wil6210: do not reset FW in STA to P2P client interface switch
  wil6210: Add support for setting RBUFCAP configuration
  wil6210: update cid boundary check of wil_find_cid/_by_idx()

Dedy Lansky (1):
  wil6210: fix printout in wil_read_pmccfg

Maya Erez (2):
  wil6210: clear FW and ucode log address
  wil6210: publish max_msdu_size to FW on BCAST ring

Tzahi Sabo (1):
  wil6210: add support for reading multiple RFs temperature via debugfs

 drivers/net/wireless/ath/wil6210/cfg80211.c   |  22 ++++-
 drivers/net/wireless/ath/wil6210/debugfs.c    |  88 +++++++++++++++---
 drivers/net/wireless/ath/wil6210/main.c       |  19 +++-
 drivers/net/wireless/ath/wil6210/pcie_bus.c   |   1 +
 drivers/net/wireless/ath/wil6210/rx_reorder.c |  31 +++----
 drivers/net/wireless/ath/wil6210/txrx.c       |   9 +-
 drivers/net/wireless/ath/wil6210/txrx_edma.c  |  16 +++-
 drivers/net/wireless/ath/wil6210/txrx_edma.h  |   2 +-
 drivers/net/wireless/ath/wil6210/wil6210.h    |   6 ++
 drivers/net/wireless/ath/wil6210/wmi.c        | 127 ++++++++++++++++++++++----
 drivers/net/wireless/ath/wil6210/wmi.h        |  47 ++++++++--
 11 files changed, 297 insertions(+), 71 deletions(-)

-- 
1.9.1

[PATCH 01/11] wil6210: do not reset FW in STA to P2P client interface switch

[Maya Erez]

From: Alexei Avshalom Lazar <ailizaro@codeaurora.org>

Currently the FW is reset on every interface type change, because
of various FW bugs.
FW reset is not required when switching from STA to P2P client, hence
can be skipped.

Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/cfg80211.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index e9780fc..1a4223f 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -643,6 +643,16 @@ static int wil_cfg80211_del_iface(struct wiphy *wiphy,
 	return rc;
 }
 
+static bool wil_is_safe_switch(enum nl80211_iftype from,
+			       enum nl80211_iftype to)
+{
+	if (from == NL80211_IFTYPE_STATION &&
+	    to == NL80211_IFTYPE_P2P_CLIENT)
+		return true;
+
+	return false;
+}
+
 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
 				     struct net_device *ndev,
 				     enum nl80211_iftype type,
@@ -668,7 +678,8 @@ static int wil_cfg80211_change_iface(struct wiphy *wiphy,
 	 * because it can cause significant disruption
 	 */
 	if (!wil_has_other_active_ifaces(wil, ndev, true, false) &&
-	    netif_running(ndev) && !wil_is_recovery_blocked(wil)) {
+	    netif_running(ndev) && !wil_is_recovery_blocked(wil) &&
+	    !wil_is_safe_switch(wdev->iftype, type)) {
 		wil_dbg_misc(wil, "interface is up. resetting...\n");
 		mutex_lock(&wil->mutex);
 		__wil_down(wil);
-- 
1.9.1

Re: [PATCH 01/11] wil6210: do not reset FW in STA to P2P client interface switch

[Kalle Valo]

Maya Erez <merez@codeaurora.org> wrote:

> Currently the FW is reset on every interface type change, because
> of various FW bugs.
> FW reset is not required when switching from STA to P2P client, hence
> can be skipped.
> 
> Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
> Signed-off-by: Maya Erez <merez@codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

11 patches applied to ath-next branch of ath.git, thanks.

b913e33076c8 wil6210: do not reset FW in STA to P2P client interface switch
c903ece596cb wil6210: enlarge Tx status ring size
96b77bb04470 wil6210: increase the frequency of status ring hw tail update
c5b3a6582b1e wil6210: Add support for setting RBUFCAP configuration
dedec35b4019 wil6210: fix printout in wil_read_pmccfg
f2b6b46e483b wil6210: clear FW and ucode log address
c478ac9daae6 wil6210: update cid boundary check of wil_find_cid/_by_idx()
3e7ee09d36a6 wil6210: publish max_msdu_size to FW on BCAST ring
9b586118730e wil6210: add support for reading multiple RFs temperature via debugfs
2a32c20b76af wil6210: set WIL_WMI_CALL_GENERAL_TO_MS as wmi_call timeout
1a276003111c wil6210: drop old event after wmi_call timeout

-- 
https://patchwork.kernel.org/patch/10997287/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

[PATCH 02/11] wil6210: enlarge Tx status ring size

[Maya Erez]

From: Ahmad Masri <amasri@codeaurora.org>

With multiple clients and in high throughput scenarios, Tx status ring
can get full and become a bottleneck in Tx transmission.
Set the default Tx status ring size order to 13, previous value was 12.
This will double the status ring size from 4K entries to 8K entries.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.h b/drivers/net/wireless/ath/wil6210/txrx_edma.h
index bb4ff28..e9e6ea9 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.h
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.h
@@ -24,7 +24,7 @@
 #define WIL_SRING_SIZE_ORDER_MAX	(WIL_RING_SIZE_ORDER_MAX)
 /* RX sring order should be bigger than RX ring order */
 #define WIL_RX_SRING_SIZE_ORDER_DEFAULT	(12)
-#define WIL_TX_SRING_SIZE_ORDER_DEFAULT	(12)
+#define WIL_TX_SRING_SIZE_ORDER_DEFAULT	(14)
 #define WIL_RX_BUFF_ARR_SIZE_DEFAULT (2600)
 
 #define WIL_DEFAULT_RX_STATUS_RING_ID 0
-- 
1.9.1

[PATCH 03/11] wil6210: increase the frequency of status ring hw tail update

[Maya Erez]

From: Ahmad Masri <amasri@codeaurora.org>

The driver updates Tx status ring HW tail only after it finishes
processing the whole status ring, while the HW is still transmitting
from other transmit rings. This can cause back-pressure on HW if
no status entries are available.

Update HW tail of Tx status ring without waiting for the end of the
processing to help feeding back the HW with status entries and to allow
additional packet transmission.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index 6140db5..dc040cd 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -26,6 +26,10 @@
 #include "txrx.h"
 #include "trace.h"
 
+/* Max number of entries (packets to complete) to update the hwtail of tx
+ * status ring. Should be power of 2
+ */
+#define WIL_EDMA_TX_SRING_UPDATE_HW_TAIL 128
 #define WIL_EDMA_MAX_DATA_OFFSET (2)
 /* RX buffer size must be aligned to 4 bytes */
 #define WIL_EDMA_RX_BUF_LEN_DEFAULT (2048)
@@ -1155,7 +1159,7 @@ int wil_tx_sring_handler(struct wil6210_priv *wil,
 	struct wil_net_stats *stats;
 	struct wil_tx_enhanced_desc *_d;
 	unsigned int ring_id;
-	unsigned int num_descs;
+	unsigned int num_descs, num_statuses = 0;
 	int i;
 	u8 dr_bit; /* Descriptor Ready bit */
 	struct wil_ring_tx_status msg;
@@ -1276,6 +1280,11 @@ int wil_tx_sring_handler(struct wil6210_priv *wil,
 		}
 
 again:
+		num_statuses++;
+		if (num_statuses % WIL_EDMA_TX_SRING_UPDATE_HW_TAIL == 0)
+			/* update HW tail to allow HW to push new statuses */
+			wil_w(wil, sring->hwtail, sring->swhead);
+
 		wil_sring_advance_swhead(sring);
 
 		wil_get_next_tx_status_msg(sring, &msg);
@@ -1286,8 +1295,9 @@ int wil_tx_sring_handler(struct wil6210_priv *wil,
 	if (desc_cnt)
 		wil_update_net_queues(wil, vif, NULL, false);
 
-	/* Update the HW tail ptr (RD ptr) */
-	wil_w(wil, sring->hwtail, (sring->swhead - 1) % sring->size);
+	if (num_statuses % WIL_EDMA_TX_SRING_UPDATE_HW_TAIL != 0)
+		/* Update the HW tail ptr (RD ptr) */
+		wil_w(wil, sring->hwtail, (sring->swhead - 1) % sring->size);
 
 	return desc_cnt;
 }
-- 
1.9.1

[PATCH 04/11] wil6210: Add support for setting RBUFCAP configuration

[Maya Erez]

From: Alexei Avshalom Lazar <ailizaro@codeaurora.org>

RBUFCAP support added in FW.
The RBUFCAP feature is amendment to the block ack mechanism to
prevent overloading of the recipient’s memory space, which may
happen in case the link speed is higher than STA’s capability
to process or consume incoming data.
The block ack policy (ba_policy) is now controlled by FW so driver
should ignore this field.
Add new debugfs "rbufcap" to configure RBUFCAP.

Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/debugfs.c    | 39 +++++++++++++++++++++++++++
 drivers/net/wireless/ath/wil6210/rx_reorder.c | 31 ++++++++-------------
 drivers/net/wireless/ath/wil6210/wil6210.h    |  1 +
 drivers/net/wireless/ath/wil6210/wmi.c        | 39 +++++++++++++++++++++++++--
 4 files changed, 88 insertions(+), 22 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 7a2c3fd..14778a1c 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -777,6 +777,44 @@ static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
 	.open  = simple_open,
 };
 
+static ssize_t wil_write_file_rbufcap(struct file *file,
+				      const char __user *buf,
+				      size_t count, loff_t *ppos)
+{
+	struct wil6210_priv *wil = file->private_data;
+	int val;
+	int rc;
+
+	rc = kstrtoint_from_user(buf, count, 0, &val);
+	if (rc) {
+		wil_err(wil, "Invalid argument\n");
+		return rc;
+	}
+	/* input value: negative to disable, 0 to use system default,
+	 * 1..ring size to set descriptor threshold
+	 */
+	wil_info(wil, "%s RBUFCAP, descriptors threshold - %d\n",
+		 val < 0 ? "Disabling" : "Enabling", val);
+
+	if (!wil->ring_rx.va || val > wil->ring_rx.size) {
+		wil_err(wil, "Invalid descriptors threshold, %d\n", val);
+		return -EINVAL;
+	}
+
+	rc = wmi_rbufcap_cfg(wil, val < 0 ? 0 : 1, val < 0 ? 0 : val);
+	if (rc) {
+		wil_err(wil, "RBUFCAP config failed: %d\n", rc);
+		return rc;
+	}
+
+	return count;
+}
+
+static const struct file_operations fops_rbufcap = {
+	.write = wil_write_file_rbufcap,
+	.open  = simple_open,
+};
+
 /* block ack control, write:
  * - "add <ringid> <agg_size> <timeout>" to trigger ADDBA
  * - "del_tx <ringid> <reason>" to trigger DELBA for Tx side
@@ -2364,6 +2402,7 @@ static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil,
 	{"tx_latency",	0644,		&fops_tx_latency},
 	{"link_stats",	0644,		&fops_link_stats},
 	{"link_stats_global",	0644,	&fops_link_stats_global},
+	{"rbufcap",	0244,		&fops_rbufcap},
 };
 
 static void wil6210_debugfs_init_files(struct wil6210_priv *wil,
diff --git a/drivers/net/wireless/ath/wil6210/rx_reorder.c b/drivers/net/wireless/ath/wil6210/rx_reorder.c
index 1c79664..784239b 100644
--- a/drivers/net/wireless/ath/wil6210/rx_reorder.c
+++ b/drivers/net/wireless/ath/wil6210/rx_reorder.c
@@ -316,7 +316,7 @@ int wil_addba_rx_request(struct wil6210_priv *wil, u8 mid, u8 cid, u8 tid,
 	u16 agg_timeout = le16_to_cpu(ba_timeout);
 	u16 seq_ctrl = le16_to_cpu(ba_seq_ctrl);
 	struct wil_sta_info *sta;
-	u16 agg_wsize = 0;
+	u16 agg_wsize;
 	/* bit 0: A-MSDU supported
 	 * bit 1: policy (should be 0 for us)
 	 * bits 2..5: TID
@@ -328,7 +328,6 @@ int wil_addba_rx_request(struct wil6210_priv *wil, u8 mid, u8 cid, u8 tid,
 		test_bit(WMI_FW_CAPABILITY_AMSDU, wil->fw_capabilities) &&
 		wil->amsdu_en && (param_set & BIT(0));
 	int ba_policy = param_set & BIT(1);
-	u16 status = WLAN_STATUS_SUCCESS;
 	u16 ssn = seq_ctrl >> 4;
 	struct wil_tid_ampdu_rx *r;
 	int rc = 0;
@@ -355,27 +354,19 @@ int wil_addba_rx_request(struct wil6210_priv *wil, u8 mid, u8 cid, u8 tid,
 		    agg_amsdu ? "+" : "-", !!ba_policy, dialog_token, ssn);
 
 	/* apply policies */
-	if (ba_policy) {
-		wil_err(wil, "BACK requested unsupported ba_policy == 1\n");
-		status = WLAN_STATUS_INVALID_QOS_PARAM;
-	}
-	if (status == WLAN_STATUS_SUCCESS) {
-		if (req_agg_wsize == 0) {
-			wil_dbg_misc(wil, "Suggest BACK wsize %d\n",
-				     wil->max_agg_wsize);
-			agg_wsize = wil->max_agg_wsize;
-		} else {
-			agg_wsize = min_t(u16,
-					  wil->max_agg_wsize, req_agg_wsize);
-		}
+	if (req_agg_wsize == 0) {
+		wil_dbg_misc(wil, "Suggest BACK wsize %d\n",
+			     wil->max_agg_wsize);
+		agg_wsize = wil->max_agg_wsize;
+	} else {
+		agg_wsize = min_t(u16, wil->max_agg_wsize, req_agg_wsize);
 	}
 
 	rc = wil->txrx_ops.wmi_addba_rx_resp(wil, mid, cid, tid, dialog_token,
-					     status, agg_amsdu, agg_wsize,
-					     agg_timeout);
-	if (rc || (status != WLAN_STATUS_SUCCESS)) {
-		wil_err(wil, "do not apply ba, rc(%d), status(%d)\n", rc,
-			status);
+					     WLAN_STATUS_SUCCESS, agg_amsdu,
+					     agg_wsize, agg_timeout);
+	if (rc) {
+		wil_err(wil, "do not apply ba, rc(%d)\n", rc);
 		goto out;
 	}
 
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 4498403..75abec2 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -1406,6 +1406,7 @@ int wmi_start_sched_scan(struct wil6210_priv *wil,
 int wmi_mgmt_tx(struct wil6210_vif *vif, const u8 *buf, size_t len);
 int wmi_mgmt_tx_ext(struct wil6210_vif *vif, const u8 *buf, size_t len,
 		    u8 channel, u16 duration_ms);
+int wmi_rbufcap_cfg(struct wil6210_priv *wil, bool enable, u16 threshold);
 
 int reverse_memcmp(const void *cs, const void *ct, size_t count);
 
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 0a0818f..298c918 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -484,6 +484,8 @@ static const char *cmdid2name(u16 cmdid)
 		return "WMI_FT_REASSOC_CMD";
 	case WMI_UPDATE_FT_IES_CMDID:
 		return "WMI_UPDATE_FT_IES_CMD";
+	case WMI_RBUFCAP_CFG_CMDID:
+		return "WMI_RBUFCAP_CFG_CMD";
 	default:
 		return "Untracked CMD";
 	}
@@ -628,6 +630,8 @@ static const char *eventid2name(u16 eventid)
 		return "WMI_FT_AUTH_STATUS_EVENT";
 	case WMI_FT_REASSOC_STATUS_EVENTID:
 		return "WMI_FT_REASSOC_STATUS_EVENT";
+	case WMI_RBUFCAP_CFG_EVENTID:
+		return "WMI_RBUFCAP_CFG_EVENT";
 	default:
 		return "Untracked EVENT";
 	}
@@ -2124,6 +2128,37 @@ int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
 	return rc;
 }
 
+int wmi_rbufcap_cfg(struct wil6210_priv *wil, bool enable, u16 threshold)
+{
+	struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
+	int rc;
+
+	struct wmi_rbufcap_cfg_cmd cmd = {
+		.enable = enable,
+		.rx_desc_threshold = cpu_to_le16(threshold),
+	};
+	struct {
+		struct wmi_cmd_hdr wmi;
+		struct wmi_rbufcap_cfg_event evt;
+	} __packed reply = {
+		.evt = {.status = WMI_FW_STATUS_FAILURE},
+	};
+
+	rc = wmi_call(wil, WMI_RBUFCAP_CFG_CMDID, vif->mid, &cmd, sizeof(cmd),
+		      WMI_RBUFCAP_CFG_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
+	if (rc)
+		return rc;
+
+	if (reply.evt.status != WMI_FW_STATUS_SUCCESS) {
+		wil_err(wil, "RBUFCAP_CFG failed. status %d\n",
+			reply.evt.status);
+		rc = -EINVAL;
+	}
+
+	return rc;
+}
+
 int wmi_pcp_start(struct wil6210_vif *vif,
 		  int bi, u8 wmi_nettype, u8 chan, u8 hidden_ssid, u8 is_go)
 {
@@ -2715,7 +2750,7 @@ int wmi_addba_rx_resp(struct wil6210_priv *wil,
 		.dialog_token = token,
 		.status_code = cpu_to_le16(status),
 		/* bit 0: A-MSDU supported
-		 * bit 1: policy (should be 0 for us)
+		 * bit 1: policy (controlled by FW)
 		 * bits 2..5: TID
 		 * bits 6..15: buffer size
 		 */
@@ -2769,7 +2804,7 @@ int wmi_addba_rx_resp_edma(struct wil6210_priv *wil, u8 mid, u8 cid, u8 tid,
 		.dialog_token = token,
 		.status_code = cpu_to_le16(status),
 		/* bit 0: A-MSDU supported
-		 * bit 1: policy (should be 0 for us)
+		 * bit 1: policy (controlled by FW)
 		 * bits 2..5: TID
 		 * bits 6..15: buffer size
 		 */
-- 
1.9.1

[PATCH 05/11] wil6210: fix printout in wil_read_pmccfg

[Maya Erez]

From: Dedy Lansky <dlansky@codeaurora.org>

Replace sprintf with snprintf which checks the destination buffer
size.

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/debugfs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 14778a1c..8eb6d49 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -976,9 +976,8 @@ static ssize_t wil_read_pmccfg(struct file *file, char __user *user_buf,
 	" - \"alloc <num descriptors> <descriptor_size>\" to allocate pmc\n"
 	" - \"free\" to free memory allocated for pmc\n";
 
-	sprintf(text, "Last command status: %d\n\n%s",
-		wil_pmc_last_cmd_status(wil),
-		help);
+	snprintf(text, sizeof(text), "Last command status: %d\n\n%s",
+		 wil_pmc_last_cmd_status(wil), help);
 
 	return simple_read_from_buffer(user_buf, count, ppos, text,
 				       strlen(text) + 1);
-- 
1.9.1

[PATCH 06/11] wil6210: clear FW and ucode log address

[Maya Erez]

Clear the FW and ucode log address on device initialization to allow
user space app identify when the address was set by FW/ucode and it can
start read.

Signed-off-by: Tzahi Sabo <stzahi@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/main.c     | 15 +++++++++++++++
 drivers/net/wireless/ath/wil6210/pcie_bus.c |  1 +
 drivers/net/wireless/ath/wil6210/wil6210.h  |  1 +
 3 files changed, 17 insertions(+)

diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 3c30076..f7b9e6b 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -1522,6 +1522,7 @@ int wil_ps_update(struct wil6210_priv *wil, enum wmi_ps_profile_type ps_profile)
 
 static void wil_pre_fw_config(struct wil6210_priv *wil)
 {
+	wil_clear_fw_log_addr(wil);
 	/* Mark FW as loaded from host */
 	wil_s(wil, RGF_USER_USAGE_6, 1);
 
@@ -1579,6 +1580,20 @@ static int wil_restore_vifs(struct wil6210_priv *wil)
 }
 
 /*
+ * Clear FW and ucode log start addr to indicate FW log is not ready. The host
+ * driver clears the addresses before FW starts and FW initializes the address
+ * when it is ready to send logs.
+ */
+void wil_clear_fw_log_addr(struct wil6210_priv *wil)
+{
+	/* FW log addr */
+	wil_w(wil, RGF_USER_USAGE_1, 0);
+	/* ucode log addr */
+	wil_w(wil, RGF_USER_USAGE_2, 0);
+	wil_dbg_misc(wil, "Cleared FW and ucode log address");
+}
+
+/*
  * We reset all the structures, and we reset the UMAC.
  * After calling this routine, you're expected to reload
  * the firmware.
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 4e2d922..9f5a914 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -420,6 +420,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 	/* rollback to bus_disable */
 
+	wil_clear_fw_log_addr(wil);
 	rc = wil_if_add(wil);
 	if (rc) {
 		wil_err(wil, "wil_if_add failed: %d\n", rc);
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 75abec2..afbc524 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -1425,4 +1425,5 @@ int wmi_addba_rx_resp_edma(struct wil6210_priv *wil, u8 mid, u8 cid,
 
 void update_supported_bands(struct wil6210_priv *wil);
 
+void wil_clear_fw_log_addr(struct wil6210_priv *wil);
 #endif /* __WIL6210_H__ */
-- 
1.9.1

[PATCH 07/11] wil6210: update cid boundary check of wil_find_cid/_by_idx()

[Maya Erez]

From: Alexei Avshalom Lazar <ailizaro@codeaurora.org>

The return value of wil_find_cid()/wil_find_cid_by_idx() is
validated with the lower boundary value.
Check the upper boundary value as well.

Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/cfg80211.c | 6 +++---
 drivers/net/wireless/ath/wil6210/main.c     | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 1a4223f..cd41a0b 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -380,8 +380,8 @@ static int wil_cfg80211_get_station(struct wiphy *wiphy,
 
 	wil_dbg_misc(wil, "get_station: %pM CID %d MID %d\n", mac, cid,
 		     vif->mid);
-	if (cid < 0)
-		return cid;
+	if (!wil_cid_valid(wil, cid))
+		return -ENOENT;
 
 	rc = wil_cid_fill_sinfo(vif, cid, sinfo);
 
@@ -417,7 +417,7 @@ static int wil_cfg80211_dump_station(struct wiphy *wiphy,
 	int rc;
 	int cid = wil_find_cid_by_idx(wil, vif->mid, idx);
 
-	if (cid < 0)
+	if (!wil_cid_valid(wil, cid))
 		return -ENOENT;
 
 	ether_addr_copy(mac, wil->sta[cid].addr);
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index f7b9e6b..173561f 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -340,7 +340,7 @@ static void _wil6210_disconnect_complete(struct wil6210_vif *vif,
 		wil_dbg_misc(wil,
 			     "Disconnect complete %pM, CID=%d, reason=%d\n",
 			     bssid, cid, reason_code);
-		if (cid >= 0) /* disconnect 1 peer */
+		if (wil_cid_valid(wil, cid)) /* disconnect 1 peer */
 			wil_disconnect_cid_complete(vif, cid, reason_code);
 	} else { /* all */
 		wil_dbg_misc(wil, "Disconnect complete all\n");
@@ -452,7 +452,7 @@ static void _wil6210_disconnect(struct wil6210_vif *vif, const u8 *bssid,
 		cid = wil_find_cid(wil, vif->mid, bssid);
 		wil_dbg_misc(wil, "Disconnect %pM, CID=%d, reason=%d\n",
 			     bssid, cid, reason_code);
-		if (cid >= 0) /* disconnect 1 peer */
+		if (wil_cid_valid(wil, cid)) /* disconnect 1 peer */
 			wil_disconnect_cid(vif, cid, reason_code);
 	} else { /* all */
 		wil_dbg_misc(wil, "Disconnect all\n");
-- 
1.9.1

[PATCH 08/11] wil6210: publish max_msdu_size to FW on BCAST ring

[Maya Erez]

Set max_msdu_size in WMI_BCAST_DESC_RING_ADD_CMD to allow FW
to optimize the buffers allocation for bcast packets.

Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/wmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 298c918..cacafab 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -3835,6 +3835,7 @@ int wil_wmi_bcast_desc_ring_add(struct wil6210_vif *vif, int ring_id)
 			.ring_size = cpu_to_le16(ring->size),
 			.ring_id = ring_id,
 		},
+		.max_msdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
 		.status_ring_id = wil->tx_sring_idx,
 		.encap_trans_type = WMI_VRING_ENC_TYPE_802_3,
 	};
-- 
1.9.1

[PATCH 09/11] wil6210: add support for reading multiple RFs temperature via debugfs

[Maya Erez]

From: Tzahi Sabo <stzahi@codeaurora.org>

Base-band chips support multi RFs chips. Add support for reading
multiple RFs temperature via debugfs.

Signed-off-by: Tzahi Sabo <stzahi@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/debugfs.c | 42 ++++++++++++++++++++------
 drivers/net/wireless/ath/wil6210/wil6210.h |  3 ++
 drivers/net/wireless/ath/wil6210/wmi.c     | 42 ++++++++++++++++++++++++++
 drivers/net/wireless/ath/wil6210/wmi.h     | 47 +++++++++++++++++++++++++-----
 4 files changed, 117 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 8eb6d49..bbe274c 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -1372,7 +1372,7 @@ static void print_temp(struct seq_file *s, const char *prefix, s32 t)
 {
 	switch (t) {
 	case 0:
-	case ~(u32)0:
+	case WMI_INVALID_TEMPERATURE:
 		seq_printf(s, "%s N/A\n", prefix);
 	break;
 	default:
@@ -1385,17 +1385,41 @@ static void print_temp(struct seq_file *s, const char *prefix, s32 t)
 static int temp_show(struct seq_file *s, void *data)
 {
 	struct wil6210_priv *wil = s->private;
-	s32 t_m, t_r;
-	int rc = wmi_get_temperature(wil, &t_m, &t_r);
+	int rc, i;
 
-	if (rc) {
-		seq_puts(s, "Failed\n");
-		return 0;
-	}
+	if (test_bit(WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF,
+		     wil->fw_capabilities)) {
+		struct wmi_temp_sense_all_done_event sense_all_evt;
 
-	print_temp(s, "T_mac   =", t_m);
-	print_temp(s, "T_radio =", t_r);
+		wil_dbg_misc(wil,
+			     "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is supported");
+		rc = wmi_get_all_temperatures(wil, &sense_all_evt);
+		if (rc) {
+			seq_puts(s, "Failed\n");
+			return 0;
+		}
+		print_temp(s, "T_mac   =",
+			   le32_to_cpu(sense_all_evt.baseband_t1000));
+		seq_printf(s, "Connected RFs [0x%08x]\n",
+			   sense_all_evt.rf_bitmap);
+		for (i = 0; i < WMI_MAX_XIF_PORTS_NUM; i++) {
+			seq_printf(s, "RF[%d]   = ", i);
+			print_temp(s, "",
+				   le32_to_cpu(sense_all_evt.rf_t1000[i]));
+		}
+	} else {
+		s32 t_m, t_r;
 
+		wil_dbg_misc(wil,
+			     "WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF is not supported");
+		rc = wmi_get_temperature(wil, &t_m, &t_r);
+		if (rc) {
+			seq_puts(s, "Failed\n");
+			return 0;
+		}
+		print_temp(s, "T_mac   =", t_m);
+		print_temp(s, "T_radio =", t_r);
+	}
 	return 0;
 }
 DEFINE_SHOW_ATTRIBUTE(temp);
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index afbc524..038329b 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -1252,6 +1252,9 @@ int wmi_add_cipher_key(struct wil6210_vif *vif, u8 key_index,
 int wmi_update_ft_ies(struct wil6210_vif *vif, u16 ie_len, const void *ie);
 int wmi_rxon(struct wil6210_priv *wil, bool on);
 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r);
+int wmi_get_all_temperatures(struct wil6210_priv *wil,
+			     struct wmi_temp_sense_all_done_event
+			     *sense_all_evt);
 int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac, u16 reason,
 		       bool del_sta);
 int wmi_addba(struct wil6210_priv *wil, u8 mid,
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index cacafab..5d7eb52 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -486,6 +486,8 @@ static const char *cmdid2name(u16 cmdid)
 		return "WMI_UPDATE_FT_IES_CMD";
 	case WMI_RBUFCAP_CFG_CMDID:
 		return "WMI_RBUFCAP_CFG_CMD";
+	case WMI_TEMP_SENSE_ALL_CMDID:
+		return "WMI_TEMP_SENSE_ALL_CMDID";
 	default:
 		return "Untracked CMD";
 	}
@@ -632,6 +634,8 @@ static const char *eventid2name(u16 eventid)
 		return "WMI_FT_REASSOC_STATUS_EVENT";
 	case WMI_RBUFCAP_CFG_EVENTID:
 		return "WMI_RBUFCAP_CFG_EVENT";
+	case WMI_TEMP_SENSE_ALL_DONE_EVENTID:
+		return "WMI_TEMP_SENSE_ALL_DONE_EVENTID";
 	default:
 		return "Untracked EVENT";
 	}
@@ -2648,6 +2652,44 @@ int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
 	return 0;
 }
 
+int wmi_get_all_temperatures(struct wil6210_priv *wil,
+			     struct wmi_temp_sense_all_done_event
+			     *sense_all_evt)
+{
+	struct wil6210_vif *vif = ndev_to_vif(wil->main_ndev);
+	int rc;
+	struct wmi_temp_sense_all_cmd cmd = {
+		.measure_baseband_en = true,
+		.measure_rf_en = true,
+		.measure_mode = TEMPERATURE_MEASURE_NOW,
+	};
+	struct {
+		struct wmi_cmd_hdr wmi;
+		struct wmi_temp_sense_all_done_event evt;
+	} __packed reply;
+
+	if (!sense_all_evt) {
+		wil_err(wil, "Invalid sense_all_evt value\n");
+		return -EINVAL;
+	}
+
+	memset(&reply, 0, sizeof(reply));
+	reply.evt.status = WMI_FW_STATUS_FAILURE;
+	rc = wmi_call(wil, WMI_TEMP_SENSE_ALL_CMDID, vif->mid, &cmd,
+		      sizeof(cmd), WMI_TEMP_SENSE_ALL_DONE_EVENTID,
+		      &reply, sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
+	if (rc)
+		return rc;
+
+	if (reply.evt.status == WMI_FW_STATUS_FAILURE) {
+		wil_err(wil, "Failed geting TEMP_SENSE_ALL\n");
+		return -EINVAL;
+	}
+
+	memcpy(sense_all_evt, &reply.evt, sizeof(reply.evt));
+	return 0;
+}
+
 int wmi_disconnect_sta(struct wil6210_vif *vif, const u8 *mac, u16 reason,
 		       bool del_sta)
 {
diff --git a/drivers/net/wireless/ath/wil6210/wmi.h b/drivers/net/wireless/ath/wil6210/wmi.h
index da46fc8..3e37229 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.h
+++ b/drivers/net/wireless/ath/wil6210/wmi.h
@@ -35,6 +35,7 @@
 #define WMI_PROX_RANGE_NUM		(3)
 #define WMI_MAX_LOSS_DMG_BEACONS	(20)
 #define MAX_NUM_OF_SECTORS		(128)
+#define WMI_INVALID_TEMPERATURE		(0xFFFFFFFF)
 #define WMI_SCHED_MAX_ALLOCS_PER_CMD	(4)
 #define WMI_RF_DTYPE_LENGTH		(3)
 #define WMI_RF_ETYPE_LENGTH		(3)
@@ -64,6 +65,7 @@
 #define WMI_QOS_MAX_WEIGHT		50
 #define WMI_QOS_SET_VIF_PRIORITY	(0xFF)
 #define WMI_QOS_DEFAULT_PRIORITY	(WMI_QOS_NUM_OF_PRIORITY)
+#define WMI_MAX_XIF_PORTS_NUM		(8)
 
 /* Mailbox interface
  * used for commands and events
@@ -105,6 +107,7 @@ enum wmi_fw_capability {
 	WMI_FW_CAPABILITY_TX_REQ_EXT			= 25,
 	WMI_FW_CAPABILITY_CHANNEL_4			= 26,
 	WMI_FW_CAPABILITY_IPA				= 27,
+	WMI_FW_CAPABILITY_TEMPERATURE_ALL_RF		= 30,
 	WMI_FW_CAPABILITY_MAX,
 };
 
@@ -296,6 +299,7 @@ enum wmi_command_id {
 	WMI_SET_VRING_PRIORITY_WEIGHT_CMDID		= 0xA10,
 	WMI_SET_VRING_PRIORITY_CMDID			= 0xA11,
 	WMI_RBUFCAP_CFG_CMDID				= 0xA12,
+	WMI_TEMP_SENSE_ALL_CMDID			= 0xA13,
 	WMI_SET_MAC_ADDRESS_CMDID			= 0xF003,
 	WMI_ABORT_SCAN_CMDID				= 0xF007,
 	WMI_SET_PROMISCUOUS_MODE_CMDID			= 0xF041,
@@ -1411,12 +1415,7 @@ struct wmi_rf_xpm_write_cmd {
 	u8 data_bytes[0];
 } __packed;
 
-/* WMI_TEMP_SENSE_CMDID
- *
- * Measure MAC and radio temperatures
- *
- * Possible modes for temperature measurement
- */
+/* Possible modes for temperature measurement */
 enum wmi_temperature_measure_mode {
 	TEMPERATURE_USE_OLD_VALUE	= 0x01,
 	TEMPERATURE_MEASURE_NOW		= 0x02,
@@ -1942,6 +1941,14 @@ struct wmi_set_ap_slot_size_cmd {
 	__le32 slot_size;
 } __packed;
 
+/* WMI_TEMP_SENSE_ALL_CMDID */
+struct wmi_temp_sense_all_cmd {
+	u8 measure_baseband_en;
+	u8 measure_rf_en;
+	u8 measure_mode;
+	u8 reserved;
+} __packed;
+
 /* WMI Events
  * List of Events (target to host)
  */
@@ -2101,6 +2108,7 @@ enum wmi_event_id {
 	WMI_SET_VRING_PRIORITY_WEIGHT_EVENTID		= 0x1A10,
 	WMI_SET_VRING_PRIORITY_EVENTID			= 0x1A11,
 	WMI_RBUFCAP_CFG_EVENTID				= 0x1A12,
+	WMI_TEMP_SENSE_ALL_DONE_EVENTID			= 0x1A13,
 	WMI_SET_CHANNEL_EVENTID				= 0x9000,
 	WMI_ASSOC_REQ_EVENTID				= 0x9001,
 	WMI_EAPOL_RX_EVENTID				= 0x9002,
@@ -2784,11 +2792,13 @@ struct wmi_fixed_scheduling_ul_config_event {
  */
 struct wmi_temp_sense_done_event {
 	/* Temperature times 1000 (actual temperature will be achieved by
-	 * dividing the value by 1000)
+	 * dividing the value by 1000). When temperature cannot be read from
+	 * device return WMI_INVALID_TEMPERATURE
 	 */
 	__le32 baseband_t1000;
 	/* Temperature times 1000 (actual temperature will be achieved by
-	 * dividing the value by 1000)
+	 * dividing the value by 1000). When temperature cannot be read from
+	 * device return WMI_INVALID_TEMPERATURE
 	 */
 	__le32 rf_t1000;
 } __packed;
@@ -4140,4 +4150,25 @@ struct wmi_rbufcap_cfg_event {
 	u8 reserved[3];
 } __packed;
 
+/* WMI_TEMP_SENSE_ALL_DONE_EVENTID
+ * Measure MAC and all radio temperatures
+ */
+struct wmi_temp_sense_all_done_event {
+	/* enum wmi_fw_status */
+	u8 status;
+	/* Bitmap of connected RFs */
+	u8 rf_bitmap;
+	u8 reserved[2];
+	/* Temperature times 1000 (actual temperature will be achieved by
+	 * dividing the value by 1000). When temperature cannot be read from
+	 * device return WMI_INVALID_TEMPERATURE
+	 */
+	__le32 rf_t1000[WMI_MAX_XIF_PORTS_NUM];
+	/* Temperature times 1000 (actual temperature will be achieved by
+	 * dividing the value by 1000). When temperature cannot be read from
+	 * device return WMI_INVALID_TEMPERATURE
+	 */
+	__le32 baseband_t1000;
+} __packed;
+
 #endif /* __WILOCITY_WMI_H__ */
-- 
1.9.1

[PATCH 10/11] wil6210: set WIL_WMI_CALL_GENERAL_TO_MS as wmi_call timeout

[Maya Erez]

From: Ahmad Masri <amasri@codeaurora.org>

Replace all wmi_call timeouts that are less than 100 msec to use
WIL_WMI_CALL_GENERAL_TO_MS (100 msec) as a default. Some of the
current wmi_call timeouts are too short and fails to receive its
waiting events.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/cfg80211.c |  3 ++-
 drivers/net/wireless/ath/wil6210/debugfs.c  |  2 +-
 drivers/net/wireless/ath/wil6210/txrx.c     |  9 +++++---
 drivers/net/wireless/ath/wil6210/wil6210.h  |  1 +
 drivers/net/wireless/ath/wil6210/wmi.c      | 32 +++++++++++++++++------------
 5 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index cd41a0b..52ae3d9 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -314,7 +314,8 @@ int wil_cid_fill_sinfo(struct wil6210_vif *vif, int cid,
 	memset(&reply, 0, sizeof(reply));
 
 	rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, vif->mid, &cmd, sizeof(cmd),
-		      WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
+		      WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index bbe274c..4d0c867 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -1334,7 +1334,7 @@ static int bf_show(struct seq_file *s, void *data)
 		rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, vif->mid,
 			      &cmd, sizeof(cmd),
 			      WMI_NOTIFY_REQ_DONE_EVENTID, &reply,
-			      sizeof(reply), 20);
+			      sizeof(reply), WIL_WMI_CALL_GENERAL_TO_MS);
 		/* if reply is all-0, ignore this CID */
 		if (rc || is_all_zeros(&reply.evt, sizeof(reply.evt)))
 			continue;
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 8790e5e..eae00aa 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -1037,7 +1037,8 @@ static int wil_vring_init_tx(struct wil6210_vif *vif, int id, int size,
 	if (!vif->privacy)
 		txdata->dot1x_open = true;
 	rc = wmi_call(wil, WMI_VRING_CFG_CMDID, vif->mid, &cmd, sizeof(cmd),
-		      WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply), 100);
+		      WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		goto out_free;
 
@@ -1125,7 +1126,8 @@ static int wil_tx_vring_modify(struct wil6210_vif *vif, int ring_id, int cid,
 	cmd.vring_cfg.tx_sw_ring.ring_mem_base = cpu_to_le64(vring->pa);
 
 	rc = wmi_call(wil, WMI_VRING_CFG_CMDID, vif->mid, &cmd, sizeof(cmd),
-		      WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply), 100);
+		      WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		goto fail;
 
@@ -1205,7 +1207,8 @@ int wil_vring_init_bcast(struct wil6210_vif *vif, int id, int size)
 		txdata->dot1x_open = true;
 	rc = wmi_call(wil, WMI_BCAST_VRING_CFG_CMDID, vif->mid,
 		      &cmd, sizeof(cmd),
-		      WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply), 100);
+		      WMI_VRING_CFG_DONE_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		goto out_free;
 
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 038329b..6f456b3 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -99,6 +99,7 @@ static inline u32 WIL_GET_BITS(u32 x, int b0, int b1)
 #define WIL_MAX_AMPDU_SIZE_128	(128 * 1024) /* FW/HW limit */
 #define WIL_MAX_AGG_WSIZE_64	(64) /* FW/HW limit */
 #define WIL6210_MAX_STATUS_RINGS	(8)
+#define WIL_WMI_CALL_GENERAL_TO_MS 100
 
 /* Hardware offload block adds the following:
  * 26 bytes - 3-address QoS data header
diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 5d7eb52..542ef15 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -40,7 +40,6 @@
 		 " 60G device led enablement. Set the led ID (0-2) to enable");
 
 #define WIL_WAIT_FOR_SUSPEND_RESUME_COMP 200
-#define WIL_WMI_CALL_GENERAL_TO_MS 100
 #define WIL_WMI_PCP_STOP_TO_MS 5000
 
 /**
@@ -2059,7 +2058,8 @@ int wmi_echo(struct wil6210_priv *wil)
 	};
 
 	return wmi_call(wil, WMI_ECHO_CMDID, vif->mid, &cmd, sizeof(cmd),
-			WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
+			WMI_ECHO_RSP_EVENTID, NULL, 0,
+			WIL_WMI_CALL_GENERAL_TO_MS);
 }
 
 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
@@ -2118,7 +2118,7 @@ int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
 
 	rc = wmi_call(wil, WMI_LED_CFG_CMDID, vif->mid, &cmd, sizeof(cmd),
 		      WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply),
-		      100);
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		goto out;
 
@@ -2267,7 +2267,8 @@ int wmi_get_ssid(struct wil6210_vif *vif, u8 *ssid_len, void *ssid)
 	memset(&reply, 0, sizeof(reply));
 
 	rc = wmi_call(wil, WMI_GET_SSID_CMDID, vif->mid, NULL, 0,
-		      WMI_GET_SSID_EVENTID, &reply, sizeof(reply), 20);
+		      WMI_GET_SSID_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
@@ -2304,7 +2305,8 @@ int wmi_get_channel(struct wil6210_priv *wil, int *channel)
 	memset(&reply, 0, sizeof(reply));
 
 	rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, vif->mid, NULL, 0,
-		      WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
+		      WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
@@ -2400,7 +2402,8 @@ int wmi_stop_discovery(struct wil6210_vif *vif)
 	wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
 
 	rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, vif->mid, NULL, 0,
-		      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
+		      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0,
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 
 	if (rc)
 		wil_err(wil, "Failed to stop discovery\n");
@@ -2546,12 +2549,14 @@ int wmi_rxon(struct wil6210_priv *wil, bool on)
 	if (on) {
 		rc = wmi_call(wil, WMI_START_LISTEN_CMDID, vif->mid, NULL, 0,
 			      WMI_LISTEN_STARTED_EVENTID,
-			      &reply, sizeof(reply), 100);
+			      &reply, sizeof(reply),
+			      WIL_WMI_CALL_GENERAL_TO_MS);
 		if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
 			rc = -EINVAL;
 	} else {
 		rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, vif->mid, NULL, 0,
-			      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
+			      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0,
+			      WIL_WMI_CALL_GENERAL_TO_MS);
 	}
 
 	return rc;
@@ -2640,7 +2645,8 @@ int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
 	memset(&reply, 0, sizeof(reply));
 
 	rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, vif->mid, &cmd, sizeof(cmd),
-		      WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
+		      WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply),
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
@@ -2822,7 +2828,7 @@ int wmi_addba_rx_resp(struct wil6210_priv *wil,
 
 	rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, mid, &cmd, sizeof(cmd),
 		      WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
-		      100);
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
@@ -2904,7 +2910,7 @@ int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil,
 	rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, vif->mid,
 		      &cmd, sizeof(cmd),
 		      WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply),
-		      100);
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
@@ -2941,7 +2947,7 @@ int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short)
 	rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, vif->mid,
 		      &cmd, sizeof(cmd),
 		      WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
-		      100);
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
@@ -2971,7 +2977,7 @@ int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short)
 	memset(&reply, 0, sizeof(reply));
 	rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, vif->mid, NULL, 0,
 		      WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
-		      100);
+		      WIL_WMI_CALL_GENERAL_TO_MS);
 	if (rc)
 		return rc;
 
-- 
1.9.1

[PATCH 11/11] wil6210: drop old event after wmi_call timeout

[Maya Erez]

From: Ahmad Masri <amasri@codeaurora.org>

This change fixes a rare race condition of handling WMI events after
wmi_call expires.

wmi_recv_cmd immediately handles an event when reply_buf is defined and
a wmi_call is waiting for the event.
However, in case the wmi_call has already timed-out, there will be no
waiting/running wmi_call and the event will be queued in WMI queue and
will be handled later in wmi_event_handle.
Meanwhile, a new similar wmi_call for the same command and event may
be issued. In this case, when handling the queued event we got WARN_ON
printed.

Fixing this case as a valid timeout and drop the unexpected event.

Signed-off-by: Ahmad Masri <amasri@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/wmi.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c
index 542ef15..475b1a2 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.c
+++ b/drivers/net/wireless/ath/wil6210/wmi.c
@@ -3303,7 +3303,18 @@ static void wmi_event_handle(struct wil6210_priv *wil,
 		/* check if someone waits for this event */
 		if (wil->reply_id && wil->reply_id == id &&
 		    wil->reply_mid == mid) {
-			WARN_ON(wil->reply_buf);
+			if (wil->reply_buf) {
+				/* event received while wmi_call is waiting
+				 * with a buffer. Such event should be handled
+				 * in wmi_recv_cmd function. Handling the event
+				 * here means a previous wmi_call was timeout.
+				 * Drop the event and do not handle it.
+				 */
+				wil_err(wil,
+					"Old event (%d, %s) while wmi_call is waiting. Drop it and Continue waiting\n",
+					id, eventid2name(id));
+				return;
+			}
 
 			wmi_evt_call_handler(vif, id, evt_data,
 					     len - sizeof(*wmi));
-- 
1.9.1