| /* |
| * 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 itr_en, itr_val = 0; |
| |
| wil_dbg_misc(wil, "%s()\n", __func__); |
| |
| itr_en = ioread32(wil->csr + HOSTADDR(RGF_DMA_ITR_CNT_CRL)); |
| if (itr_en & BIT_DMA_ITR_CNT_CRL_EN) |
| itr_val = ioread32(wil->csr + HOSTADDR(RGF_DMA_ITR_CNT_TRSH)); |
| |
| cp->rx_coalesce_usecs = 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(%d usec)\n", __func__, cp->rx_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 supported, ignore |
| * other parameters |
| */ |
| |
| if (cp->rx_coalesce_usecs > WIL6210_ITR_TRSH_MAX) |
| goto out_bad; |
| |
| wil->itr_trsh = cp->rx_coalesce_usecs; |
| wil_set_itr_trsh(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; |
| } |