| // SPDX-License-Identifier: ISC |
| /* |
| * Copyright (c) 2014,2017 Qualcomm Atheros, Inc. |
| * Copyright (c) 2018, The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/etherdevice.h> |
| #include <linux/pci.h> |
| #include <linux/rtnetlink.h> |
| #include <net/cfg80211.h> |
| |
| #include "wil6210.h" |
| |
| 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; |
| |
| mutex_lock(&wil->mutex); |
| wil_dbg_misc(wil, "ethtoolops_get_coalesce\n"); |
| |
| ret = wil_pm_runtime_get(wil); |
| if (ret < 0) |
| goto out; |
| |
| 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; |
| ret = 0; |
| |
| out: |
| mutex_unlock(&wil->mutex); |
| return ret; |
| } |
| |
| 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; |
| |
| mutex_lock(&wil->mutex); |
| 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"); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| /* 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) |
| goto out; |
| |
| wil->txrx_ops.configure_interrupt_moderation(wil); |
| |
| wil_pm_runtime_put(wil); |
| ret = 0; |
| |
| out: |
| mutex_unlock(&wil->mutex); |
| return ret; |
| |
| 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); |
| mutex_unlock(&wil->mutex); |
| return -EINVAL; |
| } |
| |
| static const struct ethtool_ops wil_ethtool_ops = { |
| .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; |
| } |