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Fri, 6 Sep 2019 02:49:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1567738156; bh=hlzVBwok/QzMQuoaegaXi8Wvuq3sxGWAqeY0kUwtYLs=; h=From:To:Cc:Subject:Date:From; b=UfVahC0LEp/k2Ys2rE6RqohL74LFRuTKV3Db0vdZwZY8uRtN+YcyMaKYcnm78PisS cN/ZQ0N3LYkEjH0sgXTEF/uQg2W6TixPju6o9nHnxbyxds5LNAa9pbTdq6uGWgvzr3 vZlWACqUgmF17XgzADJslR6ynEsRtKusXAj5gfNk= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 0019D60213 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=wgong@codeaurora.org From: Wen Gong To: ath10k@lists.infradead.org, johannes@sipsolutions.net Subject: [PATCH v3] mac80211: Store max_mtu in ieee80211_hw Date: Fri, 6 Sep 2019 10:48:57 +0800 Message-Id: <1567738137-31748-1-git-send-email-wgong@codeaurora.org> X-Mailer: git-send-email 1.9.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190905_194917_506776_D74BE3B6 X-CRM114-Status: GOOD ( 11.09 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [198.145.29.96 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: ath10k@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-wireless@vger.kernel.org MIME-Version: 1.0 Sender: "ath10k" Errors-To: ath10k-bounces+patchwork-ath10k=patchwork.kernel.org@lists.infradead.org Make it possibly for drivers to adjust the default max_mtu by storing it in the hardware struct. Signed-off-by: Wen Gong --- v2: change to set max_mtu to IEEE80211_MAX_DATA_LEN in alloc_hw v3: change commit log(mat_mtu->max_mtu) include/net/mac80211.h | 3 +++ net/mac80211/iface.c | 2 +- net/mac80211/main.c | 1 + 3 files changed, 5 insertions(+), 1 deletion(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d26da01..8545b03 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2454,6 +2454,8 @@ enum ieee80211_hw_flags { * * @weight_multiplier: Driver specific airtime weight multiplier used while * refilling deficit of each TXQ. + * + * @max_mtu: the max mtu could be set. */ struct ieee80211_hw { struct ieee80211_conf conf; @@ -2491,6 +2493,7 @@ struct ieee80211_hw { u8 max_nan_de_entries; u8 tx_sk_pacing_shift; u8 weight_multiplier; + u32 max_mtu; }; static inline bool _ieee80211_hw_check(struct ieee80211_hw *hw, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 06aac0a..32d87f0 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1877,7 +1877,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, /* MTU range: 256 - 2304 */ ndev->min_mtu = 256; - ndev->max_mtu = IEEE80211_MAX_DATA_LEN; + ndev->max_mtu = local->hw.max_mtu; ret = register_netdevice(ndev); if (ret) { diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 85e4162..89a6a09 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -638,6 +638,7 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; + local->hw.max_mtu = IEEE80211_MAX_DATA_LEN; local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask;