From edd572d72f8c6d7179c3943edaea3bcfee9484f5 Mon Sep 17 00:00:00 2001 From: Felix Manlunas Date: Tue, 28 Aug 2018 18:51:40 -0700 Subject: [PATCH] liquidio: change octnic_ctrl_pkt to do synchronous soft commands 1. Change struct octnic_ctrl_pkt to support synchronous operation. 2. Change code which use structure octnic_ctrl_pkt to send sc's synchronously. Signed-off-by: Weilin Chang Signed-off-by: Felix Manlunas Signed-off-by: David S. Miller --- .../net/ethernet/cavium/liquidio/lio_core.c | 15 ++-- .../ethernet/cavium/liquidio/lio_ethtool.c | 21 +++--- .../net/ethernet/cavium/liquidio/lio_main.c | 69 ++++++++++++------- .../ethernet/cavium/liquidio/lio_vf_main.c | 38 ++++------ .../net/ethernet/cavium/liquidio/octeon_nic.c | 56 +++++++-------- .../net/ethernet/cavium/liquidio/octeon_nic.h | 9 +-- 6 files changed, 98 insertions(+), 110 deletions(-) diff --git a/drivers/net/ethernet/cavium/liquidio/lio_core.c b/drivers/net/ethernet/cavium/liquidio/lio_core.c index 822ce0f5905d..27b3655912be 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_core.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c @@ -198,14 +198,15 @@ int liquidio_set_feature(struct net_device *netdev, int cmd, u16 param1) nctrl.ncmd.s.cmd = cmd; nctrl.ncmd.s.param1 = param1; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "Feature change failed in core (ret: 0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } @@ -285,15 +286,7 @@ void liquidio_link_ctrl_cmd_completion(void *nctrl_ptr) struct octeon_device *oct = lio->oct_dev; u8 *mac; - if (nctrl->completion && nctrl->response_code) { - /* Signal whoever is interested that the response code from the - * firmware has arrived. - */ - WRITE_ONCE(*nctrl->response_code, nctrl->status); - complete(nctrl->completion); - } - - if (nctrl->status) + if (nctrl->sc_status) return; switch (nctrl->ncmd.s.cmd) { diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c index 8e05afd5e39c..d374c44dfcac 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c @@ -472,12 +472,11 @@ lio_send_queue_count_update(struct net_device *netdev, uint32_t num_queues) nctrl.ncmd.s.param1 = num_queues; nctrl.ncmd.s.param2 = num_queues; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "Failed to send Queue reset command (ret: 0x%x)\n", ret); return -1; @@ -708,13 +707,13 @@ static int octnet_gpio_access(struct net_device *netdev, int addr, int val) nctrl.ncmd.s.param1 = addr; nctrl.ncmd.s.param2 = val; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { - dev_err(&oct->pci_dev->dev, "Failed to configure gpio value\n"); + if (ret) { + dev_err(&oct->pci_dev->dev, + "Failed to configure gpio value, ret=%d\n", ret); return -EINVAL; } @@ -734,13 +733,13 @@ static int octnet_id_active(struct net_device *netdev, int val) nctrl.ncmd.s.cmd = OCTNET_CMD_ID_ACTIVE; nctrl.ncmd.s.param1 = val; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { - dev_err(&oct->pci_dev->dev, "Failed to configure gpio value\n"); + if (ret) { + dev_err(&oct->pci_dev->dev, + "Failed to configure gpio value, ret=%d\n", ret); return -EINVAL; } @@ -1412,7 +1411,6 @@ lio_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) nctrl.ncmd.u64 = 0; nctrl.ncmd.s.cmd = OCTNET_CMD_SET_FLOW_CTL; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; @@ -1433,8 +1431,9 @@ lio_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) } ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { - dev_err(&oct->pci_dev->dev, "Failed to set pause parameter\n"); + if (ret) { + dev_err(&oct->pci_dev->dev, + "Failed to set pause parameter, ret=%d\n", ret); return -EINVAL; } diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index 8ddc191a9271..9c5a53d74dd1 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -2039,10 +2039,9 @@ static void liquidio_set_mcast_list(struct net_device *netdev) /* Apparently, any activity in this call from the kernel has to * be atomic. So we won't wait for response. */ - nctrl.wait_time = 0; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "DEVFLAGS change failed in core (ret: 0x%x)\n", ret); } @@ -2071,8 +2070,6 @@ static int liquidio_set_mac(struct net_device *netdev, void *p) nctrl.ncmd.s.more = 1; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; nctrl.netpndev = (u64)netdev; - nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; - nctrl.wait_time = 100; nctrl.udd[0] = 0; /* The MAC Address is presented in network byte order. */ @@ -2083,6 +2080,14 @@ static int liquidio_set_mac(struct net_device *netdev, void *p) dev_err(&oct->pci_dev->dev, "MAC Address change failed\n"); return -ENOMEM; } + + if (nctrl.sc_status) { + dev_err(&oct->pci_dev->dev, + "%s: MAC Address change failed. sc return=%x\n", + __func__, nctrl.sc_status); + return -EIO; + } + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); memcpy(((u8 *)&lio->linfo.hw_addr) + 2, addr->sa_data, ETH_ALEN); @@ -2623,14 +2628,15 @@ static int liquidio_vlan_rx_add_vid(struct net_device *netdev, nctrl.ncmd.s.cmd = OCTNET_CMD_ADD_VLAN_FILTER; nctrl.ncmd.s.param1 = vid; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "Add VLAN filter failed in core (ret: 0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; @@ -2651,14 +2657,15 @@ static int liquidio_vlan_rx_kill_vid(struct net_device *netdev, nctrl.ncmd.s.cmd = OCTNET_CMD_DEL_VLAN_FILTER; nctrl.ncmd.s.param1 = vid; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "Del VLAN filter failed in core (ret: 0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } @@ -2684,15 +2691,16 @@ static int liquidio_set_rxcsum_command(struct net_device *netdev, int command, nctrl.ncmd.s.cmd = command; nctrl.ncmd.s.param1 = rx_cmd; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "DEVFLAGS RXCSUM change failed in core(ret:0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } @@ -2720,15 +2728,16 @@ static int liquidio_vxlan_port_command(struct net_device *netdev, int command, nctrl.ncmd.s.more = vxlan_cmd_bit; nctrl.ncmd.s.param1 = vxlan_port; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "VxLAN port add/delete failed in core (ret:0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } @@ -2851,6 +2860,7 @@ static int __liquidio_set_vf_mac(struct net_device *netdev, int vfidx, struct lio *lio = GET_LIO(netdev); struct octeon_device *oct = lio->oct_dev; struct octnic_ctrl_pkt nctrl; + int ret = 0; if (!is_valid_ether_addr(mac)) return -EINVAL; @@ -2864,12 +2874,13 @@ static int __liquidio_set_vf_mac(struct net_device *netdev, int vfidx, nctrl.ncmd.s.cmd = OCTNET_CMD_CHANGE_MACADDR; /* vfidx is 0 based, but vf_num (param1) is 1 based */ nctrl.ncmd.s.param1 = vfidx + 1; - nctrl.ncmd.s.param2 = (is_admin_assigned ? 1 : 0); nctrl.ncmd.s.more = 1; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; nctrl.netpndev = (u64)netdev; - nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; - nctrl.wait_time = LIO_CMD_WAIT_TM; + if (is_admin_assigned) { + nctrl.ncmd.s.param2 = true; + nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; + } nctrl.udd[0] = 0; /* The MAC Address is presented in network byte order. */ @@ -2877,9 +2888,11 @@ static int __liquidio_set_vf_mac(struct net_device *netdev, int vfidx, oct->sriov_info.vf_macaddr[vfidx] = nctrl.udd[0]; - octnet_send_nic_ctrl_pkt(oct, &nctrl); + ret = octnet_send_nic_ctrl_pkt(oct, &nctrl); + if (ret > 0) + ret = -EIO; - return 0; + return ret; } static int liquidio_set_vf_mac(struct net_device *netdev, int vfidx, u8 *mac) @@ -2905,6 +2918,7 @@ static int liquidio_set_vf_vlan(struct net_device *netdev, int vfidx, struct octeon_device *oct = lio->oct_dev; struct octnic_ctrl_pkt nctrl; u16 vlantci; + int ret = 0; if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced) return -EINVAL; @@ -2936,13 +2950,17 @@ static int liquidio_set_vf_vlan(struct net_device *netdev, int vfidx, nctrl.ncmd.s.more = 0; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; nctrl.cb_fn = NULL; - nctrl.wait_time = LIO_CMD_WAIT_TM; - octnet_send_nic_ctrl_pkt(oct, &nctrl); + ret = octnet_send_nic_ctrl_pkt(oct, &nctrl); + if (ret) { + if (ret > 0) + ret = -EIO; + return ret; + } oct->sriov_info.vf_vlantci[vfidx] = vlantci; - return 0; + return ret; } static int liquidio_get_vf_config(struct net_device *netdev, int vfidx, @@ -3063,6 +3081,7 @@ static int liquidio_set_vf_link_state(struct net_device *netdev, int vfidx, struct lio *lio = GET_LIO(netdev); struct octeon_device *oct = lio->oct_dev; struct octnic_ctrl_pkt nctrl; + int ret = 0; if (vfidx < 0 || vfidx >= oct->sriov_info.num_vfs_alloced) return -EINVAL; @@ -3078,13 +3097,15 @@ static int liquidio_set_vf_link_state(struct net_device *netdev, int vfidx, nctrl.ncmd.s.more = 0; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; nctrl.cb_fn = NULL; - nctrl.wait_time = LIO_CMD_WAIT_TM; - octnet_send_nic_ctrl_pkt(oct, &nctrl); + ret = octnet_send_nic_ctrl_pkt(oct, &nctrl); - oct->sriov_info.vf_linkstate[vfidx] = linkstate; + if (!ret) + oct->sriov_info.vf_linkstate[vfidx] = linkstate; + else if (ret > 0) + ret = -EIO; - return 0; + return ret; } static int diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c index 59c2dd92aac5..f6bed6ebb344 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c @@ -1119,10 +1119,9 @@ static void liquidio_set_mcast_list(struct net_device *netdev) /* Apparently, any activity in this call from the kernel has to * be atomic. So we won't wait for response. */ - nctrl.wait_time = 0; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "DEVFLAGS change failed in core (ret: 0x%x)\n", ret); } @@ -1159,8 +1158,6 @@ static int liquidio_set_mac(struct net_device *netdev, void *p) nctrl.ncmd.s.more = 1; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; nctrl.netpndev = (u64)netdev; - nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; - nctrl.wait_time = 100; nctrl.udd[0] = 0; /* The MAC Address is presented in network byte order. */ @@ -1171,6 +1168,7 @@ static int liquidio_set_mac(struct net_device *netdev, void *p) dev_err(&oct->pci_dev->dev, "MAC Address change failed\n"); return -ENOMEM; } + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); ether_addr_copy(((u8 *)&lio->linfo.hw_addr) + 2, addr->sa_data); @@ -1664,8 +1662,6 @@ liquidio_vlan_rx_add_vid(struct net_device *netdev, struct lio *lio = GET_LIO(netdev); struct octeon_device *oct = lio->oct_dev; struct octnic_ctrl_pkt nctrl; - struct completion compl; - u16 response_code; int ret = 0; memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt)); @@ -1674,26 +1670,15 @@ liquidio_vlan_rx_add_vid(struct net_device *netdev, nctrl.ncmd.s.cmd = OCTNET_CMD_ADD_VLAN_FILTER; nctrl.ncmd.s.param1 = vid; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; - init_completion(&compl); - nctrl.completion = &compl; - nctrl.response_code = &response_code; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "Add VLAN filter failed in core (ret: 0x%x)\n", ret); - return -EIO; - } - - if (!wait_for_completion_timeout(&compl, - msecs_to_jiffies(nctrl.wait_time))) - return -EPERM; - - if (READ_ONCE(response_code)) return -EPERM; + } return 0; } @@ -1713,14 +1698,15 @@ liquidio_vlan_rx_kill_vid(struct net_device *netdev, nctrl.ncmd.s.cmd = OCTNET_CMD_DEL_VLAN_FILTER; nctrl.ncmd.s.param1 = vid; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "Del VLAN filter failed in core (ret: 0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } @@ -1746,14 +1732,15 @@ static int liquidio_set_rxcsum_command(struct net_device *netdev, int command, nctrl.ncmd.s.cmd = command; nctrl.ncmd.s.param1 = rx_cmd; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "DEVFLAGS RXCSUM change failed in core (ret:0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } @@ -1781,15 +1768,16 @@ static int liquidio_vxlan_port_command(struct net_device *netdev, int command, nctrl.ncmd.s.more = vxlan_cmd_bit; nctrl.ncmd.s.param1 = vxlan_port; nctrl.iq_no = lio->linfo.txpciq[0].s.q_no; - nctrl.wait_time = 100; nctrl.netpndev = (u64)netdev; nctrl.cb_fn = liquidio_link_ctrl_cmd_completion; ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl); - if (ret < 0) { + if (ret) { dev_err(&oct->pci_dev->dev, "DEVFLAGS VxLAN port add/delete failed in core (ret : 0x%x)\n", ret); + if (ret > 0) + ret = -EIO; } return ret; } diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_nic.c b/drivers/net/ethernet/cavium/liquidio/octeon_nic.c index b7364bb3b186..676fe0b7ab8c 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_nic.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_nic.c @@ -91,29 +91,6 @@ int octnet_send_nic_data_pkt(struct octeon_device *oct, ndata->reqtype); } -static void octnet_link_ctrl_callback(struct octeon_device *oct, - u32 status, - void *sc_ptr) -{ - struct octeon_soft_command *sc = (struct octeon_soft_command *)sc_ptr; - struct octnic_ctrl_pkt *nctrl; - - nctrl = (struct octnic_ctrl_pkt *)sc->ctxptr; - - /* Call the callback function if status is zero (meaning OK) or status - * contains a firmware status code bigger than zero (meaning the - * firmware is reporting an error). - * If no response was expected, status is OK if the command was posted - * successfully. - */ - if ((!status || status > FIRMWARE_STATUS_CODE(0)) && nctrl->cb_fn) { - nctrl->status = status; - nctrl->cb_fn(nctrl); - } - - octeon_free_soft_command(oct, sc); -} - static inline struct octeon_soft_command *octnic_alloc_ctrl_pkt_sc(struct octeon_device *oct, struct octnic_ctrl_pkt *nctrl) @@ -126,17 +103,14 @@ static inline struct octeon_soft_command uddsize = (u32)(nctrl->ncmd.s.more * 8); datasize = OCTNET_CMD_SIZE + uddsize; - rdatasize = (nctrl->wait_time) ? 16 : 0; + rdatasize = 16; sc = (struct octeon_soft_command *) - octeon_alloc_soft_command(oct, datasize, rdatasize, - sizeof(struct octnic_ctrl_pkt)); + octeon_alloc_soft_command(oct, datasize, rdatasize, 0); if (!sc) return NULL; - memcpy(sc->ctxptr, nctrl, sizeof(struct octnic_ctrl_pkt)); - data = (u8 *)sc->virtdptr; memcpy(data, &nctrl->ncmd, OCTNET_CMD_SIZE); @@ -153,9 +127,8 @@ static inline struct octeon_soft_command octeon_prepare_soft_command(oct, sc, OPCODE_NIC, OPCODE_NIC_CMD, 0, 0, 0); - sc->callback = octnet_link_ctrl_callback; - sc->callback_arg = sc; - sc->wait_time = nctrl->wait_time; + init_completion(&sc->complete); + sc->sc_status = OCTEON_REQUEST_PENDING; return sc; } @@ -198,5 +171,26 @@ octnet_send_nic_ctrl_pkt(struct octeon_device *oct, } spin_unlock_bh(&oct->cmd_resp_wqlock); + + switch (nctrl->ncmd.s.cmd) { + /* caller holds lock, can not sleep */ + case OCTNET_CMD_CHANGE_DEVFLAGS: + case OCTNET_CMD_SET_MULTI_LIST: + case OCTNET_CMD_SET_UC_LIST: + WRITE_ONCE(sc->caller_is_done, true); + return retval; + } + + retval = wait_for_sc_completion_timeout(oct, sc, 0); + if (retval) + return (retval); + + nctrl->sc_status = sc->sc_status; + retval = nctrl->sc_status; + if (nctrl->cb_fn) + nctrl->cb_fn(nctrl); + + WRITE_ONCE(sc->caller_is_done, true); + return retval; } diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_nic.h b/drivers/net/ethernet/cavium/liquidio/octeon_nic.h index de4130d26a98..87dd6f89ce51 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_nic.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_nic.h @@ -52,20 +52,13 @@ struct octnic_ctrl_pkt { /** Input queue to use to send this command. */ u64 iq_no; - /** Time to wait for Octeon software to respond to this control command. - * If wait_time is 0, OSI assumes no response is expected. - */ - size_t wait_time; - /** The network device that issued the control command. */ u64 netpndev; /** Callback function called when the command has been fetched */ octnic_ctrl_pkt_cb_fn_t cb_fn; - u32 status; - u16 *response_code; - struct completion *completion; + u32 sc_status; }; #define MAX_UDD_SIZE(nctrl) (sizeof((nctrl)->udd)) -- 2.30.2