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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | /* * 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 <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, "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; } |