RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
best_mtu and set_emss were not considering ipv6 header for ipv6 case. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
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65d4c01af0
Коммит
04524a47c3
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@ -236,10 +236,12 @@ static void release_tid(struct c4iw_rdev *rdev, u32 hwtid, struct sk_buff *skb)
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static void set_emss(struct c4iw_ep *ep, u16 opt)
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{
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ep->emss = ep->com.dev->rdev.lldi.mtus[GET_TCPOPT_MSS(opt)] -
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sizeof(struct iphdr) - sizeof(struct tcphdr);
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((AF_INET == ep->com.remote_addr.ss_family) ?
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sizeof(struct iphdr) : sizeof(struct ipv6hdr)) -
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sizeof(struct tcphdr);
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ep->mss = ep->emss;
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if (GET_TCPOPT_TSTAMP(opt))
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ep->emss -= 12;
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ep->emss -= round_up(TCPOLEN_TIMESTAMP, 4);
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if (ep->emss < 128)
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ep->emss = 128;
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if (ep->emss & 7)
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@ -581,11 +583,14 @@ static void c4iw_record_pm_msg(struct c4iw_ep *ep,
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}
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static void best_mtu(const unsigned short *mtus, unsigned short mtu,
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unsigned int *idx, int use_ts)
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unsigned int *idx, int use_ts, int ipv6)
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{
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unsigned short hdr_size = sizeof(struct iphdr) +
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unsigned short hdr_size = (ipv6 ?
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sizeof(struct ipv6hdr) :
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sizeof(struct iphdr)) +
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sizeof(struct tcphdr) +
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(use_ts ? 12 : 0);
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(use_ts ?
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round_up(TCPOLEN_TIMESTAMP, 4) : 0);
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unsigned short data_size = mtu - hdr_size;
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cxgb4_best_aligned_mtu(mtus, hdr_size, data_size, 8, idx);
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@ -634,7 +639,8 @@ static int send_connect(struct c4iw_ep *ep)
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set_wr_txq(skb, CPL_PRIORITY_SETUP, ep->ctrlq_idx);
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best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
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enable_tcp_timestamps);
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enable_tcp_timestamps,
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(AF_INET == ep->com.remote_addr.ss_family) ? 0 : 1);
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wscale = compute_wscale(rcv_win);
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/*
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@ -1763,7 +1769,8 @@ static void send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
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req->tcb.tx_max = (__force __be32) jiffies;
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req->tcb.rcv_adv = htons(1);
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best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
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enable_tcp_timestamps);
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enable_tcp_timestamps,
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(AF_INET == ep->com.remote_addr.ss_family) ? 0 : 1);
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wscale = compute_wscale(rcv_win);
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/*
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@ -2162,7 +2169,8 @@ static void accept_cr(struct c4iw_ep *ep, struct sk_buff *skb,
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ep->hwtid));
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best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
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enable_tcp_timestamps && req->tcpopt.tstamp);
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enable_tcp_timestamps && req->tcpopt.tstamp,
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(AF_INET == ep->com.remote_addr.ss_family) ? 0 : 1);
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wscale = compute_wscale(rcv_win);
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/*
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