Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 Qualcomm Atheros, Inc. |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for any |
| 5 | * purpose with or without fee is hereby granted, provided that the above |
| 6 | * copyright notice and this permission notice appear in all copies. |
| 7 | * |
| 8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 15 | */ |
| 16 | |
| 17 | #include <linux/etherdevice.h> |
| 18 | #include <linux/pci.h> |
| 19 | #include <linux/rtnetlink.h> |
| 20 | #include <net/cfg80211.h> |
| 21 | |
| 22 | #include "wil6210.h" |
| 23 | |
| 24 | static int wil_ethtoolops_begin(struct net_device *ndev) |
| 25 | { |
| 26 | struct wil6210_priv *wil = ndev_to_wil(ndev); |
| 27 | |
| 28 | mutex_lock(&wil->mutex); |
| 29 | |
| 30 | wil_dbg_misc(wil, "%s()\n", __func__); |
| 31 | |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | static void wil_ethtoolops_complete(struct net_device *ndev) |
| 36 | { |
| 37 | struct wil6210_priv *wil = ndev_to_wil(ndev); |
| 38 | |
| 39 | wil_dbg_misc(wil, "%s()\n", __func__); |
| 40 | |
| 41 | mutex_unlock(&wil->mutex); |
| 42 | } |
| 43 | |
| 44 | static int wil_ethtoolops_get_coalesce(struct net_device *ndev, |
| 45 | struct ethtool_coalesce *cp) |
| 46 | { |
| 47 | struct wil6210_priv *wil = ndev_to_wil(ndev); |
Vladimir Kondratiev | 78366f6 | 2014-12-23 09:47:19 +0200 | [diff] [blame] | 48 | u32 tx_itr_en, tx_itr_val = 0; |
| 49 | u32 rx_itr_en, rx_itr_val = 0; |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 50 | |
| 51 | wil_dbg_misc(wil, "%s()\n", __func__); |
| 52 | |
Vladimir Kondratiev | b9eeb51 | 2015-07-30 13:52:03 +0300 | [diff] [blame] | 53 | tx_itr_en = wil_r(wil, RGF_DMA_ITR_TX_CNT_CTL); |
Vladimir Kondratiev | 9a5511b | 2015-02-15 14:02:31 +0200 | [diff] [blame] | 54 | if (tx_itr_en & BIT_DMA_ITR_TX_CNT_CTL_EN) |
Vladimir Kondratiev | b9eeb51 | 2015-07-30 13:52:03 +0300 | [diff] [blame] | 55 | tx_itr_val = wil_r(wil, RGF_DMA_ITR_TX_CNT_TRSH); |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 56 | |
Vladimir Kondratiev | b9eeb51 | 2015-07-30 13:52:03 +0300 | [diff] [blame] | 57 | rx_itr_en = wil_r(wil, RGF_DMA_ITR_RX_CNT_CTL); |
Vladimir Kondratiev | 9a5511b | 2015-02-15 14:02:31 +0200 | [diff] [blame] | 58 | if (rx_itr_en & BIT_DMA_ITR_RX_CNT_CTL_EN) |
Vladimir Kondratiev | b9eeb51 | 2015-07-30 13:52:03 +0300 | [diff] [blame] | 59 | rx_itr_val = wil_r(wil, RGF_DMA_ITR_RX_CNT_TRSH); |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 60 | |
Vladimir Kondratiev | 78366f6 | 2014-12-23 09:47:19 +0200 | [diff] [blame] | 61 | cp->tx_coalesce_usecs = tx_itr_val; |
| 62 | cp->rx_coalesce_usecs = rx_itr_val; |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | static int wil_ethtoolops_set_coalesce(struct net_device *ndev, |
| 67 | struct ethtool_coalesce *cp) |
| 68 | { |
| 69 | struct wil6210_priv *wil = ndev_to_wil(ndev); |
| 70 | |
Vladimir Kondratiev | 78366f6 | 2014-12-23 09:47:19 +0200 | [diff] [blame] | 71 | wil_dbg_misc(wil, "%s(rx %d usec, tx %d usec)\n", __func__, |
| 72 | cp->rx_coalesce_usecs, cp->tx_coalesce_usecs); |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 73 | |
| 74 | if (wil->wdev->iftype == NL80211_IFTYPE_MONITOR) { |
| 75 | wil_dbg_misc(wil, "No IRQ coalescing in monitor mode\n"); |
| 76 | return -EINVAL; |
| 77 | } |
| 78 | |
Vladimir Kondratiev | 78366f6 | 2014-12-23 09:47:19 +0200 | [diff] [blame] | 79 | /* only @rx_coalesce_usecs and @tx_coalesce_usecs supported, |
| 80 | * ignore other parameters |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 81 | */ |
| 82 | |
Vladimir Kondratiev | 78366f6 | 2014-12-23 09:47:19 +0200 | [diff] [blame] | 83 | if (cp->rx_coalesce_usecs > WIL6210_ITR_TRSH_MAX || |
| 84 | cp->tx_coalesce_usecs > WIL6210_ITR_TRSH_MAX) |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 85 | goto out_bad; |
| 86 | |
Vladimir Kondratiev | 78366f6 | 2014-12-23 09:47:19 +0200 | [diff] [blame] | 87 | wil->tx_max_burst_duration = cp->tx_coalesce_usecs; |
| 88 | wil->rx_max_burst_duration = cp->rx_coalesce_usecs; |
| 89 | wil_configure_interrupt_moderation(wil); |
Vladimir Kondratiev | b6b1b0e | 2014-09-22 15:31:41 +0300 | [diff] [blame] | 90 | |
| 91 | return 0; |
| 92 | |
| 93 | out_bad: |
| 94 | wil_dbg_misc(wil, "Unsupported coalescing params. Raw command:\n"); |
| 95 | print_hex_dump_debug("DBG[MISC] coal ", DUMP_PREFIX_OFFSET, 16, 4, |
| 96 | cp, sizeof(*cp), false); |
| 97 | return -EINVAL; |
| 98 | } |
| 99 | |
| 100 | static const struct ethtool_ops wil_ethtool_ops = { |
| 101 | .begin = wil_ethtoolops_begin, |
| 102 | .complete = wil_ethtoolops_complete, |
| 103 | .get_drvinfo = cfg80211_get_drvinfo, |
| 104 | .get_coalesce = wil_ethtoolops_get_coalesce, |
| 105 | .set_coalesce = wil_ethtoolops_set_coalesce, |
| 106 | }; |
| 107 | |
| 108 | void wil_set_ethtoolops(struct net_device *ndev) |
| 109 | { |
| 110 | ndev->ethtool_ops = &wil_ethtool_ops; |
| 111 | } |