tree: git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git
for-next
head: 73b32b46c1484afa58e959fb62f9979516341998
commit: fd56c2b766cdcfc0e3d31fc6c192536269f5b94d [4/6] RDMA/cxgb4: Fix LE hash
collision bug for passive open connection
config: make ARCH=i386 allyesconfig
All warnings:
drivers/infiniband/hw/cxgb4/cm.c: In function 'passive_ofld_conn_reply':
drivers/infiniband/hw/cxgb4/cm.c:2694:12: warning: cast to pointer from integer
of different size [-Wint-to-pointer-cast]
drivers/infiniband/hw/cxgb4/cm.c: In function 'send_fw_pass_open_req':
drivers/infiniband/hw/cxgb4/cm.c:2829:57: warning: cast from pointer to integer
of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:92: warning: cast from pointer to integer
of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:155: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:218: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:281: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:343: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:405: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:468: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:531: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
drivers/infiniband/hw/cxgb4/cm.c:2829:596: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
vim +2694 drivers/infiniband/hw/cxgb4/cm.c
fd56c2b7 Vipul Pandya 2012-12-10 2688 struct
cpl_fw6_msg_ofld_connection_wr_rpl *req)
fd56c2b7 Vipul Pandya 2012-12-10 2689 {
fd56c2b7 Vipul Pandya 2012-12-10 2690 struct sk_buff *rpl_skb;
fd56c2b7 Vipul Pandya 2012-12-10 2691 struct cpl_pass_accept_req *cpl;
fd56c2b7 Vipul Pandya 2012-12-10 2692 int ret;
fd56c2b7 Vipul Pandya 2012-12-10 2693
fd56c2b7 Vipul Pandya 2012-12-10 @2694 rpl_skb = (struct sk_buff
*)cpu_to_be64(req->cookie);
fd56c2b7 Vipul Pandya 2012-12-10 2695 BUG_ON(!rpl_skb);
fd56c2b7 Vipul Pandya 2012-12-10 2696 if (req->retval) {
fd56c2b7 Vipul Pandya 2012-12-10 2697 PDBG("%s passive open
failure %d\n", __func__, req->retval);
fd56c2b7 Vipul Pandya 2012-12-10 2698 kfree_skb(rpl_skb);
fd56c2b7 Vipul Pandya 2012-12-10 2699 } else {
fd56c2b7 Vipul Pandya 2012-12-10 2700 cpl = (struct
cpl_pass_accept_req *)cplhdr(rpl_skb);
fd56c2b7 Vipul Pandya 2012-12-10 2701 OPCODE_TID(cpl) =
htonl(MK_OPCODE_TID(CPL_PASS_ACCEPT_REQ,
fd56c2b7 Vipul Pandya 2012-12-10 2702
htonl(req->tid)));
fd56c2b7 Vipul Pandya 2012-12-10 2703 ret =
pass_accept_req(dev, rpl_skb);
fd56c2b7 Vipul Pandya 2012-12-10 2704 if (!ret)
fd56c2b7 Vipul Pandya 2012-12-10 2705
kfree_skb(rpl_skb);
fd56c2b7 Vipul Pandya 2012-12-10 2706 }
fd56c2b7 Vipul Pandya 2012-12-10 2707 return;
fd56c2b7 Vipul Pandya 2012-12-10 2708 }
fd56c2b7 Vipul Pandya 2012-12-10 2709
fd56c2b7 Vipul Pandya 2012-12-10 2710 static int deferred_fw6_msg(struct
c4iw_dev *dev, struct sk_buff *skb)
2f5b48c3 Steve Wise 2010-09-10 2711 {
2f5b48c3 Steve Wise 2010-09-10 2712 struct cpl_fw6_msg *rpl =
cplhdr(skb);
fd56c2b7 Vipul Pandya 2012-12-10 2713 struct
cpl_fw6_msg_ofld_connection_wr_rpl *req;
fd56c2b7 Vipul Pandya 2012-12-10 2714
fd56c2b7 Vipul Pandya 2012-12-10 2715 switch (rpl->type) {
fd56c2b7 Vipul Pandya 2012-12-10 2716 case FW6_TYPE_CQE:
fd56c2b7 Vipul Pandya 2012-12-10 2717 c4iw_ev_dispatch(dev,
(struct t4_cqe *)&rpl->data[0]);
fd56c2b7 Vipul Pandya 2012-12-10 2718 break;
fd56c2b7 Vipul Pandya 2012-12-10 2719 case
FW6_TYPE_OFLD_CONNECTION_WR_RPL:
fd56c2b7 Vipul Pandya 2012-12-10 2720 req = (struct
cpl_fw6_msg_ofld_connection_wr_rpl *)rpl->data;
fd56c2b7 Vipul Pandya 2012-12-10 2721 switch (req->t_state) {
fd56c2b7 Vipul Pandya 2012-12-10 2722 case TCP_SYN_SENT:
fd56c2b7 Vipul Pandya 2012-12-10 2723
active_ofld_conn_reply(dev, skb, req);
fd56c2b7 Vipul Pandya 2012-12-10 2724 break;
fd56c2b7 Vipul Pandya 2012-12-10 2725 case TCP_SYN_RECV:
fd56c2b7 Vipul Pandya 2012-12-10 2726
passive_ofld_conn_reply(dev, skb, req);
fd56c2b7 Vipul Pandya 2012-12-10 2727 break;
fd56c2b7 Vipul Pandya 2012-12-10 2728 default:
fd56c2b7 Vipul Pandya 2012-12-10 2729 pr_err("%s
unexpected ofld conn wr state %d\n",
fd56c2b7 Vipul Pandya 2012-12-10 2730
__func__, req->t_state);
fd56c2b7 Vipul Pandya 2012-12-10 2731 break;
fd56c2b7 Vipul Pandya 2012-12-10 2732 }
fd56c2b7 Vipul Pandya 2012-12-10 2733 break;
fd56c2b7 Vipul Pandya 2012-12-10 2734 }
fd56c2b7 Vipul Pandya 2012-12-10 2735 return 0;
fd56c2b7 Vipul Pandya 2012-12-10 2736 }
fd56c2b7 Vipul Pandya 2012-12-10 2737
fd56c2b7 Vipul Pandya 2012-12-10 2738 static void
build_cpl_pass_accept_req(struct sk_buff *skb, int stid , u8 tos)
fd56c2b7 Vipul Pandya 2012-12-10 2739 {
fd56c2b7 Vipul Pandya 2012-12-10 2740 u32 l2info;
fd56c2b7 Vipul Pandya 2012-12-10 2741 u16 vlantag, len, hdr_len;
fd56c2b7 Vipul Pandya 2012-12-10 2742 u8 intf;
fd56c2b7 Vipul Pandya 2012-12-10 2743 struct cpl_rx_pkt *cpl =
cplhdr(skb);
fd56c2b7 Vipul Pandya 2012-12-10 2744 struct cpl_pass_accept_req *req;
fd56c2b7 Vipul Pandya 2012-12-10 2745 struct tcp_options_received
tmp_opt;
fd56c2b7 Vipul Pandya 2012-12-10 2746
fd56c2b7 Vipul Pandya 2012-12-10 2747 /* Store values from cpl_rx_pkt
in temporary location. */
fd56c2b7 Vipul Pandya 2012-12-10 2748 vlantag = cpl->vlan;
fd56c2b7 Vipul Pandya 2012-12-10 2749 len = cpl->len;
fd56c2b7 Vipul Pandya 2012-12-10 2750 l2info = cpl->l2info;
fd56c2b7 Vipul Pandya 2012-12-10 2751 hdr_len = cpl->hdr_len;
fd56c2b7 Vipul Pandya 2012-12-10 2752 intf = cpl->iff;
fd56c2b7 Vipul Pandya 2012-12-10 2753
fd56c2b7 Vipul Pandya 2012-12-10 2754 __skb_pull(skb, sizeof(*req) +
sizeof(struct rss_header));
fd56c2b7 Vipul Pandya 2012-12-10 2755
fd56c2b7 Vipul Pandya 2012-12-10 2756 /*
fd56c2b7 Vipul Pandya 2012-12-10 2757 * We need to parse the TCP
options from SYN packet.
fd56c2b7 Vipul Pandya 2012-12-10 2758 * to generate
cpl_pass_accept_req.
fd56c2b7 Vipul Pandya 2012-12-10 2759 */
fd56c2b7 Vipul Pandya 2012-12-10 2760 memset(&tmp_opt, 0,
sizeof(tmp_opt));
fd56c2b7 Vipul Pandya 2012-12-10 2761 tcp_clear_options(&tmp_opt);
fd56c2b7 Vipul Pandya 2012-12-10 2762 tcp_parse_options(skb,
&tmp_opt, 0, 0, NULL);
fd56c2b7 Vipul Pandya 2012-12-10 2763
fd56c2b7 Vipul Pandya 2012-12-10 2764 req = (struct
cpl_pass_accept_req *)__skb_push(skb, sizeof(*req));
fd56c2b7 Vipul Pandya 2012-12-10 2765 memset(req, 0, sizeof(*req));
fd56c2b7 Vipul Pandya 2012-12-10 2766 req->l2info =
cpu_to_be16(V_SYN_INTF(intf) |
fd56c2b7 Vipul Pandya 2012-12-10 2767
V_SYN_MAC_IDX(G_RX_MACIDX(htonl(l2info))) |
fd56c2b7 Vipul Pandya 2012-12-10 2768
F_SYN_XACT_MATCH);
fd56c2b7 Vipul Pandya 2012-12-10 2769 req->hdr_len =
cpu_to_be32(V_SYN_RX_CHAN(G_RX_CHAN(htonl(l2info))) |
fd56c2b7 Vipul Pandya 2012-12-10 2770
V_TCP_HDR_LEN(G_RX_TCPHDR_LEN(htons(hdr_len))) |
fd56c2b7 Vipul Pandya 2012-12-10 2771
V_IP_HDR_LEN(G_RX_IPHDR_LEN(htons(hdr_len))) |
fd56c2b7 Vipul Pandya 2012-12-10 2772
V_ETH_HDR_LEN(G_RX_ETHHDR_LEN(htonl(l2info))));
fd56c2b7 Vipul Pandya 2012-12-10 2773 req->vlan = vlantag;
fd56c2b7 Vipul Pandya 2012-12-10 2774 req->len = len;
fd56c2b7 Vipul Pandya 2012-12-10 2775 req->tos_stid =
cpu_to_be32(PASS_OPEN_TID(stid) |
fd56c2b7 Vipul Pandya 2012-12-10 2776
PASS_OPEN_TOS(tos));
fd56c2b7 Vipul Pandya 2012-12-10 2777 req->tcpopt.mss =
htons(tmp_opt.mss_clamp);
fd56c2b7 Vipul Pandya 2012-12-10 2778 if (tmp_opt.wscale_ok)
fd56c2b7 Vipul Pandya 2012-12-10 2779 req->tcpopt.wsf =
tmp_opt.snd_wscale;
fd56c2b7 Vipul Pandya 2012-12-10 2780 req->tcpopt.tstamp =
tmp_opt.saw_tstamp;
fd56c2b7 Vipul Pandya 2012-12-10 2781 if (tmp_opt.sack_ok)
fd56c2b7 Vipul Pandya 2012-12-10 2782 req->tcpopt.sack = 1;
fd56c2b7 Vipul Pandya 2012-12-10 2783 OPCODE_TID(req) =
htonl(MK_OPCODE_TID(CPL_PASS_ACCEPT_REQ, 0));
fd56c2b7 Vipul Pandya 2012-12-10 2784 return;
fd56c2b7 Vipul Pandya 2012-12-10 2785 }
fd56c2b7 Vipul Pandya 2012-12-10 2786
fd56c2b7 Vipul Pandya 2012-12-10 2787 static void
send_fw_pass_open_req(struct c4iw_dev *dev, struct sk_buff *skb,
fd56c2b7 Vipul Pandya 2012-12-10 2788
__be32 laddr, __be16 lport,
fd56c2b7 Vipul Pandya 2012-12-10 2789
__be32 raddr, __be16 rport,
fd56c2b7 Vipul Pandya 2012-12-10 2790 u32
rcv_isn, u32 filter, u16 window,
fd56c2b7 Vipul Pandya 2012-12-10 2791 u32
rss_qid, u8 port_id)
fd56c2b7 Vipul Pandya 2012-12-10 2792 {
fd56c2b7 Vipul Pandya 2012-12-10 2793 struct sk_buff *req_skb;
fd56c2b7 Vipul Pandya 2012-12-10 2794 struct fw_ofld_connection_wr
*req;
fd56c2b7 Vipul Pandya 2012-12-10 2795 struct cpl_pass_accept_req *cpl
= cplhdr(skb);
fd56c2b7 Vipul Pandya 2012-12-10 2796
fd56c2b7 Vipul Pandya 2012-12-10 2797 req_skb =
alloc_skb(sizeof(struct fw_ofld_connection_wr), GFP_KERNEL);
fd56c2b7 Vipul Pandya 2012-12-10 2798 req = (struct
fw_ofld_connection_wr *)__skb_put(req_skb, sizeof(*req));
fd56c2b7 Vipul Pandya 2012-12-10 2799 memset(req, 0, sizeof(*req));
fd56c2b7 Vipul Pandya 2012-12-10 2800 req->op_compl =
htonl(V_WR_OP(FW_OFLD_CONNECTION_WR) | FW_WR_COMPL(1));
fd56c2b7 Vipul Pandya 2012-12-10 2801 req->len16_pkd =
htonl(FW_WR_LEN16(DIV_ROUND_UP(sizeof(*req), 16)));
fd56c2b7 Vipul Pandya 2012-12-10 2802 req->le.version_cpl =
htonl(F_FW_OFLD_CONNECTION_WR_CPL);
fd56c2b7 Vipul Pandya 2012-12-10 2803 req->le.filter = filter;
fd56c2b7 Vipul Pandya 2012-12-10 2804 req->le.lport = lport;
fd56c2b7 Vipul Pandya 2012-12-10 2805 req->le.pport = rport;
fd56c2b7 Vipul Pandya 2012-12-10 2806 req->le.u.ipv4.lip = laddr;
fd56c2b7 Vipul Pandya 2012-12-10 2807 req->le.u.ipv4.pip = raddr;
fd56c2b7 Vipul Pandya 2012-12-10 2808 req->tcb.rcv_nxt =
htonl(rcv_isn + 1);
fd56c2b7 Vipul Pandya 2012-12-10 2809 req->tcb.rcv_adv =
htons(window);
fd56c2b7 Vipul Pandya 2012-12-10 2810 req->tcb.t_state_to_astid =
fd56c2b7 Vipul Pandya 2012-12-10 2811
htonl(V_FW_OFLD_CONNECTION_WR_T_STATE(TCP_SYN_RECV) |
fd56c2b7 Vipul Pandya 2012-12-10 2812
V_FW_OFLD_CONNECTION_WR_RCV_SCALE(cpl->tcpopt.wsf) |
fd56c2b7 Vipul Pandya 2012-12-10 2813
V_FW_OFLD_CONNECTION_WR_ASTID(
fd56c2b7 Vipul Pandya 2012-12-10 2814
GET_PASS_OPEN_TID(ntohl(cpl->tos_stid))));
fd56c2b7 Vipul Pandya 2012-12-10 2815
fd56c2b7 Vipul Pandya 2012-12-10 2816 /*
fd56c2b7 Vipul Pandya 2012-12-10 2817 * We store the qid in opt2
which will be used by the firmware
fd56c2b7 Vipul Pandya 2012-12-10 2818 * to send us the wr response.
fd56c2b7 Vipul Pandya 2012-12-10 2819 */
fd56c2b7 Vipul Pandya 2012-12-10 2820 req->tcb.opt2 =
htonl(V_RSS_QUEUE(rss_qid));
fd56c2b7 Vipul Pandya 2012-12-10 2821
fd56c2b7 Vipul Pandya 2012-12-10 2822 /*
fd56c2b7 Vipul Pandya 2012-12-10 2823 * We initialize the MSS index
in TCB to 0xF.
fd56c2b7 Vipul Pandya 2012-12-10 2824 * So that when driver sends
cpl_pass_accept_rpl
fd56c2b7 Vipul Pandya 2012-12-10 2825 * TCB picks up the correct
value. If this was 0
fd56c2b7 Vipul Pandya 2012-12-10 2826 * TP will ignore any value > 0
for MSS index.
fd56c2b7 Vipul Pandya 2012-12-10 2827 */
fd56c2b7 Vipul Pandya 2012-12-10 2828 req->tcb.opt0 =
cpu_to_be64(V_MSS_IDX(0xF));
fd56c2b7 Vipul Pandya 2012-12-10 @2829 req->cookie =
cpu_to_be64((u64)skb);
fd56c2b7 Vipul Pandya 2012-12-10 2830
fd56c2b7 Vipul Pandya 2012-12-10 2831 set_wr_txq(req_skb,
CPL_PRIORITY_CONTROL, port_id);
fd56c2b7 Vipul Pandya 2012-12-10 2832
cxgb4_ofld_send(dev->rdev.lldi.ports[0], req_skb);
---
0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation
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