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Mon, 2 Sep 2019 09:22:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1567416169; bh=SJdS/6HwUq0chCGzBK9UjuQ/Tid2KLHRA7LXRycvAAI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ohy/B8EMd2n6M7kj+OQ4KFbz5U8kLXO2J4J5aE1dFe++1JBe0NxrsmY1F8httcg4u Td19rQzbGsM4Vyoa9Yr1zq4FAwhHVtbkkN3t3PXQ2Fvp8I0N/hx/FXzqN2IgAVj4oG qLS0Ob3Klf8+yxmqXXFJVBpX90F6e4v/T3bKUTms= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 7D11B608FF 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 Subject: [PATCH v4 7/8] ath10k: enable alt data of TX path for sdio Date: Mon, 2 Sep 2019 17:22:25 +0800 Message-Id: <1567416146-14403-8-git-send-email-wgong@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1567416146-14403-1-git-send-email-wgong@codeaurora.org> References: <1567416146-14403-1-git-send-email-wgong@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190902_022250_892491_934D5997 X-CRM114-Status: GOOD ( 15.94 ) 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_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -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 The default credit size is 1792 bytes, but the IP mtu is 1500 bytes, then it has about 290 bytes's waste for each data packet on sdio transfer path for TX bundle, it will reduce the transmission utilization ratio for data packet. This patch enable the small credit size in firmware, firmware will use the new credit size 1556 bytes, it will increase the transmission utilization ratio for data packet on TX patch. It results in significant performance improvement on TX path. This patch only effect sdio chip, it will not effect PCI, SNOC etc. Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00017-QCARMSWP-1. Signed-off-by: Wen Gong --- v2: no change v3: change some code style v4: add macro ATH10K_HTC_MSG_READY_EXT_ALT_DATA_MASK drivers/net/wireless/ath/ath10k/core.c | 19 +++++++++++++++++-- drivers/net/wireless/ath/ath10k/htc.c | 12 ++++++++++-- drivers/net/wireless/ath/ath10k/htc.h | 13 +++++++++++-- 3 files changed, 38 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c index 9841533..9fd07c7 100644 --- a/drivers/net/wireless/ath/ath10k/core.c +++ b/drivers/net/wireless/ath/ath10k/core.c @@ -31,6 +31,7 @@ static unsigned int ath10k_cryptmode_param; static bool uart_print; static bool disable_tx_comp = true; +static bool alt_data = true; static bool skip_otp; static bool rawmode; static bool fw_diag_log; @@ -45,6 +46,15 @@ /* If upper layer need the TX complete status, it can enable tx complete */ module_param(disable_tx_comp, bool, 0644); + +/* alt_data is only used for sdio chip, for previous version of firmware, its + * alt data size is 1544 which is not enough for native wifi, so it need to + * alt_data for the firmware. + * If the firmware has changed alt data size to 1556, then it can enable + * alt_data for the firmware. + * alt_data will not effect PCI, SNOC etc. + */ +module_param(alt_data, bool, 0644); module_param(skip_otp, bool, 0644); module_param(rawmode, bool, 0644); module_param(fw_diag_log, bool, 0644); @@ -698,9 +708,14 @@ static void ath10k_init_sdio(struct ath10k *ar, enum ath10k_firmware_mode mode) param &= ~HI_ACS_FLAGS_SDIO_REDUCE_TX_COMPL_SET; /* Alternate credit size of 1544 as used by SDIO firmware is - * not big enough for mac80211 / native wifi frames. disable it + * not big enough for mac80211 / native wifi frames. disable it. + * If alternate credit size of 1556 as used by SDIO firmware is + * big enough for mac80211 / native wifi frames. enable it */ - param &= ~HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE; + if (alt_data && mode == ATH10K_FIRMWARE_MODE_NORMAL) + param |= HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE; + else + param &= ~HI_ACS_FLAGS_ALT_DATA_CREDIT_SIZE; if (mode == ATH10K_FIRMWARE_MODE_UTF) param &= ~HI_ACS_FLAGS_SDIO_SWAP_MAILBOX_SET; diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c index 5269168..ace0fec 100644 --- a/drivers/net/wireless/ath/ath10k/htc.c +++ b/drivers/net/wireless/ath/ath10k/htc.c @@ -940,12 +940,16 @@ int ath10k_htc_wait_target(struct ath10k_htc *htc) */ if (htc->control_resp_len >= sizeof(msg->hdr) + sizeof(msg->ready_ext)) { + htc->alt_data_credit_size = + __le16_to_cpu(msg->ready_ext.reserved) & + ATH10K_HTC_MSG_READY_EXT_ALT_DATA_MASK; htc->max_msgs_per_htc_bundle = min_t(u8, msg->ready_ext.max_msgs_per_htc_bundle, HTC_HOST_MAX_MSG_PER_RX_BUNDLE); ath10k_dbg(ar, ATH10K_DBG_HTC, - "Extended ready message. RX bundle size: %d\n", - htc->max_msgs_per_htc_bundle); + "Extended ready message. RX bundle size: %d, alt size:%d\n", + htc->max_msgs_per_htc_bundle, + htc->alt_data_credit_size); } INIT_WORK(&ar->bundle_tx_work, ath10k_htc_bundle_tx_work); @@ -1097,6 +1101,10 @@ int ath10k_htc_connect_service(struct ath10k_htc *htc, ep->tx_credits = tx_alloc; ep->tx_credit_size = htc->target_credit_size; + if (conn_req->service_id == ATH10K_HTC_SVC_ID_HTT_DATA_MSG && + htc->alt_data_credit_size != 0) + ep->tx_credit_size = htc->alt_data_credit_size; + /* copy all the callbacks */ ep->ep_ops = conn_req->ep_ops; diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h index ec4957a..5c21ec7 100644 --- a/drivers/net/wireless/ath/ath10k/htc.h +++ b/drivers/net/wireless/ath/ath10k/htc.h @@ -109,6 +109,8 @@ enum ath10k_htc_conn_flags { #define ATH10K_HTC_CONN_FLAGS_RECV_ALLOC_LSB 8 }; +#define ATH10K_HTC_MSG_READY_EXT_ALT_DATA_MASK 0xFFF + enum ath10k_htc_conn_svc_status { ATH10K_HTC_CONN_SVC_STATUS_SUCCESS = 0, ATH10K_HTC_CONN_SVC_STATUS_NOT_FOUND = 1, @@ -141,8 +143,14 @@ struct ath10k_htc_ready_extended { struct ath10k_htc_ready base; u8 htc_version; /* @enum ath10k_htc_version */ u8 max_msgs_per_htc_bundle; - u8 pad0; - u8 pad1; + union { + __le16 reserved; + struct { + u8 pad0; + u8 pad1; + } __packed; + } __packed; + } __packed; struct ath10k_htc_conn_svc { @@ -379,6 +387,7 @@ struct ath10k_htc { int total_transmit_credits; int target_credit_size; u8 max_msgs_per_htc_bundle; + int alt_data_credit_size; }; int ath10k_htc_init(struct ath10k *ar);