Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / wireless / ath / wil6210 / ethtool.c

diff --git a/kernel/drivers/net/wireless/ath/wil6210/ethtool.c b/kernel/drivers/net/wireless/ath/wil6210/ethtool.c
new file mode 100644 (file)
index 0000000..0ea695f
--- /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;
+}