X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fnet%2Fwireless%2Fath%2Fwil6210%2Fethtool.c;fp=kernel%2Fdrivers%2Fnet%2Fwireless%2Fath%2Fwil6210%2Fethtool.c;h=0ea695ff98adeda1185382bfda7b58958b579275;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/net/wireless/ath/wil6210/ethtool.c b/kernel/drivers/net/wireless/ath/wil6210/ethtool.c
new file mode 100644
index 000000000..0ea695ff9
--- /dev/null
+++ b/kernel/drivers/net/wireless/ath/wil6210/ethtool.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2014 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/etherdevice.h>
+#include <linux/pci.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+
+#include "wil6210.h"
+
+static int wil_ethtoolops_begin(struct net_device *ndev)
+{
+	struct wil6210_priv *wil = ndev_to_wil(ndev);
+
+	mutex_lock(&wil->mutex);
+
+	wil_dbg_misc(wil, "%s()\n", __func__);
+
+	return 0;
+}
+
+static void wil_ethtoolops_complete(struct net_device *ndev)
+{
+	struct wil6210_priv *wil = ndev_to_wil(ndev);
+
+	wil_dbg_misc(wil, "%s()\n", __func__);
+
+	mutex_unlock(&wil->mutex);
+}
+
+static int wil_ethtoolops_get_coalesce(struct net_device *ndev,
+				       struct ethtool_coalesce *cp)
+{
+	struct wil6210_priv *wil = ndev_to_wil(ndev);
+	u32 tx_itr_en, tx_itr_val = 0;
+	u32 rx_itr_en, rx_itr_val = 0;
+
+	wil_dbg_misc(wil, "%s()\n", __func__);
+
+	tx_itr_en = ioread32(wil->csr +
+			     HOSTADDR(RGF_DMA_ITR_TX_CNT_CTL));
+	if (tx_itr_en & BIT_DMA_ITR_TX_CNT_CTL_EN)
+		tx_itr_val =
+			ioread32(wil->csr +
+				 HOSTADDR(RGF_DMA_ITR_TX_CNT_TRSH));
+
+	rx_itr_en = ioread32(wil->csr +
+			     HOSTADDR(RGF_DMA_ITR_RX_CNT_CTL));
+	if (rx_itr_en & BIT_DMA_ITR_RX_CNT_CTL_EN)
+		rx_itr_val =
+			ioread32(wil->csr +
+				 HOSTADDR(RGF_DMA_ITR_RX_CNT_TRSH));
+
+	cp->tx_coalesce_usecs = tx_itr_val;
+	cp->rx_coalesce_usecs = rx_itr_val;
+	return 0;
+}
+
+static int wil_ethtoolops_set_coalesce(struct net_device *ndev,
+				       struct ethtool_coalesce *cp)
+{
+	struct wil6210_priv *wil = ndev_to_wil(ndev);
+
+	wil_dbg_misc(wil, "%s(rx %d usec, tx %d usec)\n", __func__,
+		     cp->rx_coalesce_usecs, cp->tx_coalesce_usecs);
+
+	if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) {
+		wil_dbg_misc(wil, "No IRQ coalescing in monitor mode\n");
+		return -EINVAL;
+	}
+
+	/* only @rx_coalesce_usecs and @tx_coalesce_usecs supported,
+	 * ignore other parameters
+	 */
+
+	if (cp->rx_coalesce_usecs > WIL6210_ITR_TRSH_MAX ||
+	    cp->tx_coalesce_usecs > WIL6210_ITR_TRSH_MAX)
+		goto out_bad;
+
+	wil->tx_max_burst_duration = cp->tx_coalesce_usecs;
+	wil->rx_max_burst_duration = cp->rx_coalesce_usecs;
+	wil_configure_interrupt_moderation(wil);
+
+	return 0;
+
+out_bad:
+	wil_dbg_misc(wil, "Unsupported coalescing params. Raw command:\n");
+	print_hex_dump_debug("DBG[MISC] coal ", DUMP_PREFIX_OFFSET, 16, 4,
+			     cp, sizeof(*cp), false);
+	return -EINVAL;
+}
+
+static const struct ethtool_ops wil_ethtool_ops = {
+	.begin		= wil_ethtoolops_begin,
+	.complete	= wil_ethtoolops_complete,
+	.get_drvinfo	= cfg80211_get_drvinfo,
+	.get_coalesce	= wil_ethtoolops_get_coalesce,
+	.set_coalesce	= wil_ethtoolops_set_coalesce,
+};
+
+void wil_set_ethtoolops(struct net_device *ndev)
+{
+	ndev->ethtool_ops = &wil_ethtool_ops;
+}