diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_mcp.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_mcp.c | 57 |
1 files changed, 48 insertions, 9 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c index 6dd3ce443484..314022df3469 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c @@ -1,9 +1,33 @@ /* QLogic qed NIC Driver - * Copyright (c) 2015 QLogic Corporation + * Copyright (c) 2015-2017 QLogic Corporation * - * This software is available under the terms of the GNU General Public License - * (GPL) Version 2, available from the file COPYING in the main directory of - * this source tree. + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and /or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. */ #include <linux/types.h> @@ -168,6 +192,7 @@ int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) /* Initialize the MFW spinlock */ spin_lock_init(&p_info->lock); + spin_lock_init(&p_info->link_lock); return 0; @@ -586,6 +611,9 @@ static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn, u8 max_bw, min_bw; u32 status = 0; + /* Prevent SW/attentions from doing this at the same time */ + spin_lock_bh(&p_hwfn->mcp_info->link_lock); + p_link = &p_hwfn->mcp_info->link_output; memset(p_link, 0, sizeof(*p_link)); if (!b_reset) { @@ -600,7 +628,7 @@ static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn, } else { DP_VERBOSE(p_hwfn, NETIF_MSG_LINK, "Resetting link indications\n"); - return; + goto out; } if (p_hwfn->b_drv_link_init) @@ -707,6 +735,8 @@ static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn, p_link->sfp_tx_fault = !!(status & LINK_STATUS_SFP_TX_FAULT); qed_link_update(p_hwfn); +out: + spin_unlock_bh(&p_hwfn->mcp_info->link_lock); } int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up) @@ -756,9 +786,13 @@ int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up) return rc; } - /* Reset the link status if needed */ - if (!b_up) - qed_mcp_handle_link_change(p_hwfn, p_ptt, true); + /* Mimic link-change attention, done for several reasons: + * - On reset, there's no guarantee MFW would trigger + * an attention. + * - On initialization, older MFWs might not indicate link change + * during LFA, so we'll never get an UP indication. + */ + qed_mcp_handle_link_change(p_hwfn, p_ptt, !b_up); return 0; } @@ -1098,12 +1132,17 @@ qed_mcp_get_shmem_proto(struct qed_hwfn *p_hwfn, switch (p_info->config & FUNC_MF_CFG_PROTOCOL_MASK) { case FUNC_MF_CFG_PROTOCOL_ETHERNET: - if (qed_mcp_get_shmem_proto_mfw(p_hwfn, p_ptt, p_proto)) + if (!IS_ENABLED(CONFIG_QED_RDMA)) + *p_proto = QED_PCI_ETH; + else if (qed_mcp_get_shmem_proto_mfw(p_hwfn, p_ptt, p_proto)) qed_mcp_get_shmem_proto_legacy(p_hwfn, p_proto); break; case FUNC_MF_CFG_PROTOCOL_ISCSI: *p_proto = QED_PCI_ISCSI; break; + case FUNC_MF_CFG_PROTOCOL_FCOE: + *p_proto = QED_PCI_FCOE; + break; case FUNC_MF_CFG_PROTOCOL_ROCE: DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n"); /* Fallthrough */ |