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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/net/wireless/ath/wil6210/ethtool.c
..
..
@@ -1,18 +1,7 @@
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+// SPDX-License-Identifier: ISC
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 /*
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  * Copyright (c) 2014,2017 Qualcomm Atheros, Inc.
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  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
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- *
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- * Permission to use, copy, modify, and/or distribute this software for any
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- * purpose with or without fee is hereby granted, provided that the above
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- * copyright notice and this permission notice appear in all copies.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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5
  */
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6
 
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 #include <linux/etherdevice.h>
..
..
@@ -22,26 +11,6 @@
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11
 
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 #include "wil6210.h"
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13
 
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-static int wil_ethtoolops_begin(struct net_device *ndev)
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-{
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-	struct wil6210_priv *wil = ndev_to_wil(ndev);
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-
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-	mutex_lock(&wil->mutex);
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-
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-	wil_dbg_misc(wil, "ethtoolops_begin\n");
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-
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-	return 0;
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-}
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-
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-static void wil_ethtoolops_complete(struct net_device *ndev)
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-{
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-	struct wil6210_priv *wil = ndev_to_wil(ndev);
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-
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-	wil_dbg_misc(wil, "ethtoolops_complete\n");
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-
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-	mutex_unlock(&wil->mutex);
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-}
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-
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 static int wil_ethtoolops_get_coalesce(struct net_device *ndev,
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 				       struct ethtool_coalesce *cp)
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16
 {
..
..
@@ -50,11 +19,12 @@
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19
 	u32 rx_itr_en, rx_itr_val = 0;
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 	int ret;
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21
 
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+	mutex_lock(&wil->mutex);
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 	wil_dbg_misc(wil, "ethtoolops_get_coalesce\n");
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24
 
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 	ret = wil_pm_runtime_get(wil);
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 	if (ret < 0)
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-		return ret;
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+		goto out;
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28
 
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 	tx_itr_en = wil_r(wil, RGF_DMA_ITR_TX_CNT_CTL);
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 	if (tx_itr_en & BIT_DMA_ITR_TX_CNT_CTL_EN)
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..
@@ -68,7 +38,11 @@
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38
 
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 	cp->tx_coalesce_usecs = tx_itr_val;
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 	cp->rx_coalesce_usecs = rx_itr_val;
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-	return 0;
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+	ret = 0;
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+
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+out:
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+	mutex_unlock(&wil->mutex);
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+	return ret;
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 }
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47
 
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 static int wil_ethtoolops_set_coalesce(struct net_device *ndev,
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@@ -78,12 +52,14 @@
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 	struct wireless_dev *wdev = ndev->ieee80211_ptr;
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 	int ret;
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54
 
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+	mutex_lock(&wil->mutex);
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 	wil_dbg_misc(wil, "ethtoolops_set_coalesce: rx %d usec, tx %d usec\n",
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 		     cp->rx_coalesce_usecs, cp->tx_coalesce_usecs);
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58
 
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 	if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
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 		wil_dbg_misc(wil, "No IRQ coalescing in monitor mode\n");
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-		return -EINVAL;
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+		ret = -EINVAL;
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+		goto out;
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 	}
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64
 
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 	/* only @rx_coalesce_usecs and @tx_coalesce_usecs supported,
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..
@@ -99,24 +75,27 @@
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 	ret = wil_pm_runtime_get(wil);
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 	if (ret < 0)
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-		return ret;
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+		goto out;
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 	wil->txrx_ops.configure_interrupt_moderation(wil);
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 	wil_pm_runtime_put(wil);
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+	ret = 0;
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-	return 0;
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+out:
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+	mutex_unlock(&wil->mutex);
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+	return ret;
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88
 
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 out_bad:
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 	wil_dbg_misc(wil, "Unsupported coalescing params. Raw command:\n");
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 	print_hex_dump_debug("DBG[MISC] coal ", DUMP_PREFIX_OFFSET, 16, 4,
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 			     cp, sizeof(*cp), false);
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+	mutex_unlock(&wil->mutex);
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 	return -EINVAL;
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 }
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 static const struct ethtool_ops wil_ethtool_ops = {
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-	.begin		= wil_ethtoolops_begin,
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-	.complete	= wil_ethtoolops_complete,
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+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS,
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 	.get_drvinfo	= cfg80211_get_drvinfo,
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 	.get_coalesce	= wil_ethtoolops_get_coalesce,
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 	.set_coalesce	= wil_ethtoolops_set_coalesce,