From 348fa3f6871f56a37dcd16c99ca98118c6d79a38 Mon Sep 17 00:00:00 2001 From: Dominik Sliwa Date: Mon, 4 Mar 2019 12:01:54 +0100 Subject: Backports v4.19.24 Backports generated by toradex backports 515a1fa55cda2b1d952872e1786857481bd54fcc against mainline kernel tag v4.19.24 Signed-off-by: Dominik Sliwa --- drivers/net/wireless/ath/wil6210/ethtool.c | 128 +++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 drivers/net/wireless/ath/wil6210/ethtool.c (limited to 'drivers/net/wireless/ath/wil6210/ethtool.c') diff --git a/drivers/net/wireless/ath/wil6210/ethtool.c b/drivers/net/wireless/ath/wil6210/ethtool.c new file mode 100644 index 0000000..a04c87f --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/ethtool.c @@ -0,0 +1,128 @@ +/* + * Copyright (c) 2014,2017 Qualcomm Atheros, Inc. + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + * + * 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 +#include +#include +#include + +#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, "ethtoolops_begin\n"); + + return 0; +} + +static void wil_ethtoolops_complete(struct net_device *ndev) +{ + struct wil6210_priv *wil = ndev_to_wil(ndev); + + wil_dbg_misc(wil, "ethtoolops_complete\n"); + + 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; + int ret; + + wil_dbg_misc(wil, "ethtoolops_get_coalesce\n"); + + ret = wil_pm_runtime_get(wil); + if (ret < 0) + return ret; + + tx_itr_en = wil_r(wil, RGF_DMA_ITR_TX_CNT_CTL); + if (tx_itr_en & BIT_DMA_ITR_TX_CNT_CTL_EN) + tx_itr_val = wil_r(wil, RGF_DMA_ITR_TX_CNT_TRSH); + + rx_itr_en = wil_r(wil, RGF_DMA_ITR_RX_CNT_CTL); + if (rx_itr_en & BIT_DMA_ITR_RX_CNT_CTL_EN) + rx_itr_val = wil_r(wil, RGF_DMA_ITR_RX_CNT_TRSH); + + wil_pm_runtime_put(wil); + + 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); + struct wireless_dev *wdev = ndev->ieee80211_ptr; + int ret; + + wil_dbg_misc(wil, "ethtoolops_set_coalesce: rx %d usec, tx %d usec\n", + cp->rx_coalesce_usecs, cp->tx_coalesce_usecs); + + if (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; + + ret = wil_pm_runtime_get(wil); + if (ret < 0) + return ret; + + wil->txrx_ops.configure_interrupt_moderation(wil); + + wil_pm_runtime_put(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; +} -- cgit v1.2.3