Return-path: Received: from sabertooth01.qualcomm.com ([65.197.215.72]:37113 "EHLO sabertooth01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751403AbdLUJBu (ORCPT ); Thu, 21 Dec 2017 04:01:50 -0500 From: Govind Singh To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Govind Singh Subject: [PATCH 03/10] ath10k: Add support for 64 bit HTT in-order indication msg Date: Thu, 21 Dec 2017 14:30:52 +0530 Message-Id: <1513846859-23639-4-git-send-email-govinds@qti.qualcomm.com> (sfid-20171221_100202_516622_2F461A7F) In-Reply-To: <1513846859-23639-1-git-send-email-govinds@qti.qualcomm.com> References: <1513846859-23639-1-git-send-email-govinds@qti.qualcomm.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: WCN3990 target use 64bit msdu address in htt in-order indication message. Add support for 64 bit msdu address in HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND message. Signed-off-by: Govind Singh --- drivers/net/wireless/ath/ath10k/htt.h | 12 +++++- drivers/net/wireless/ath/ath10k/htt_rx.c | 67 +++++++++++++++++++++++++++++--- 2 files changed, 72 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 6305308..f3d5883 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -855,13 +855,23 @@ struct htt_rx_in_ord_msdu_desc { u8 reserved; } __packed; +struct htt_rx_in_ord_msdu_desc_ext { + __le64 msdu_paddr; + __le16 msdu_len; + u8 fw_desc; + u8 reserved; +} __packed; + struct htt_rx_in_ord_ind { u8 info; __le16 peer_id; u8 vdev_id; u8 reserved; __le16 msdu_count; - struct htt_rx_in_ord_msdu_desc msdu_descs[0]; + union { + struct htt_rx_in_ord_msdu_desc msdu_descs32[0]; + struct htt_rx_in_ord_msdu_desc_ext msdu_descs64[0]; + } __packed; } __packed; #define HTT_RX_IN_ORD_IND_INFO_TID_MASK 0x0000001f diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 7d295ee..6402189 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -408,12 +408,12 @@ static struct sk_buff *ath10k_htt_rx_pop_paddr(struct ath10k_htt *htt, return msdu; } -static int ath10k_htt_rx_pop_paddr_list(struct ath10k_htt *htt, - struct htt_rx_in_ord_ind *ev, - struct sk_buff_head *list) +static int ath10k_htt_rx_pop_paddr32_list(struct ath10k_htt *htt, + struct htt_rx_in_ord_ind *ev, + struct sk_buff_head *list) { struct ath10k *ar = htt->ar; - struct htt_rx_in_ord_msdu_desc *msdu_desc = ev->msdu_descs; + struct htt_rx_in_ord_msdu_desc *msdu_desc = ev->msdu_descs32; struct htt_rx_desc *rxd; struct sk_buff *msdu; int msdu_count; @@ -458,6 +458,55 @@ static int ath10k_htt_rx_pop_paddr_list(struct ath10k_htt *htt, return 0; } +static int ath10k_htt_rx_pop_paddr64_list(struct ath10k_htt *htt, + struct htt_rx_in_ord_ind *ev, + struct sk_buff_head *list) +{ + struct ath10k *ar = htt->ar; + struct htt_rx_in_ord_msdu_desc_ext *msdu_desc = ev->msdu_descs64; + struct htt_rx_desc *rxd; + struct sk_buff *msdu; + int msdu_count; + bool is_offload; + u64 paddr; + + lockdep_assert_held(&htt->rx_ring.lock); + + msdu_count = __le16_to_cpu(ev->msdu_count); + is_offload = !!(ev->info & HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK); + + while (msdu_count--) { + paddr = __le64_to_cpu(msdu_desc->msdu_paddr); + msdu = ath10k_htt_rx_pop_paddr(htt, paddr); + if (!msdu) { + __skb_queue_purge(list); + return -ENOENT; + } + + __skb_queue_tail(list, msdu); + + if (!is_offload) { + rxd = (void *)msdu->data; + + trace_ath10k_htt_rx_desc(ar, rxd, sizeof(*rxd)); + + skb_put(msdu, sizeof(*rxd)); + skb_pull(msdu, sizeof(*rxd)); + skb_put(msdu, __le16_to_cpu(msdu_desc->msdu_len)); + + if (!(__le32_to_cpu(rxd->attention.flags) & + RX_ATTENTION_FLAGS_MSDU_DONE)) { + ath10k_warn(htt->ar, "tried to pop an incomplete frame, oops!\n"); + return -EIO; + } + } + + msdu_desc++; + } + + return 0; +} + int ath10k_htt_rx_alloc(struct ath10k_htt *htt) { struct ath10k *ar = htt->ar; @@ -1981,7 +2030,7 @@ static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb) "htt rx in ord vdev %i peer %i tid %i offload %i frag %i msdu count %i\n", vdev_id, peer_id, tid, offload, frag, msdu_count); - if (skb->len < msdu_count * sizeof(*resp->rx_in_ord_ind.msdu_descs)) { + if (skb->len < msdu_count * sizeof(*resp->rx_in_ord_ind.msdu_descs32)) { ath10k_warn(ar, "dropping invalid in order rx indication\n"); return -EINVAL; } @@ -1990,7 +2039,13 @@ static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb) * extracted and processed. */ __skb_queue_head_init(&list); - ret = ath10k_htt_rx_pop_paddr_list(htt, &resp->rx_in_ord_ind, &list); + if (ar->hw_params.target_64bit) + ret = ath10k_htt_rx_pop_paddr64_list(htt, &resp->rx_in_ord_ind, + &list); + else + ret = ath10k_htt_rx_pop_paddr32_list(htt, &resp->rx_in_ord_ind, + &list); + if (ret < 0) { ath10k_warn(ar, "failed to pop paddr list: %d\n", ret); htt->rx_confused = true; -- 1.9.1