From patchwork Sun Dec 30 19:57:06 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ariel Elior X-Patchwork-Id: 208762 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 6FB752C009A for ; Mon, 31 Dec 2012 06:54:56 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755163Ab2L3Tyv (ORCPT ); Sun, 30 Dec 2012 14:54:51 -0500 Received: from mms1.broadcom.com ([216.31.210.17]:3268 "EHLO mms1.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755093Ab2L3Tyq (ORCPT ); Sun, 30 Dec 2012 14:54:46 -0500 Received: from [10.9.200.133] by mms1.broadcom.com with ESMTP (Broadcom SMTP Relay (Email Firewall v6.5)); Sun, 30 Dec 2012 11:52:36 -0800 X-Server-Uuid: 06151B78-6688-425E-9DE2-57CB27892261 Received: from mail-irva-13.broadcom.com (10.11.16.103) by IRVEXCHHUB02.corp.ad.broadcom.com (10.9.200.133) with Microsoft SMTP Server id 8.2.247.2; Sun, 30 Dec 2012 11:54:20 -0800 Received: from lb-tlvb-pcie37.il.broadcom.com ( lb-tlvb-pcie37.il.broadcom.com [10.185.6.30]) by mail-irva-13.broadcom.com (Postfix) with ESMTP id BA8D940FE3; Sun, 30 Dec 2012 11:54:32 -0800 (PST) From: "Ariel Elior" To: "David Miller" cc: netdev , "Ariel Elior" , "Eilon Greenstein" Subject: [PATCH net-next v4 06/22] bnx2x: Add teardown_q and close to VF <-> PF channel Date: Sun, 30 Dec 2012 21:57:06 +0200 Message-ID: <1356897442-3063-7-git-send-email-ariele@broadcom.com> X-Mailer: git-send-email 1.7.9.GIT In-Reply-To: <1356897442-3063-1-git-send-email-ariele@broadcom.com> References: <1356897442-3063-1-git-send-email-ariele@broadcom.com> MIME-Version: 1.0 X-WSS-ID: 7CFE440E1ZK7589977-01-01 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org When a VF is being closed its queues are released via the 'teardown_q' and the VF itself is closed with 'close'. These are essentially the unload counterparts of 'init' and 'setup_q' from the load flow. Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein --- drivers/net/ethernet/broadcom/bnx2x/bnx2x.h | 2 + drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 9 ++- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 85 ++++++++++++++++++++++ drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h | 18 +++++ 4 files changed, 112 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 5c64d1d..82c6233 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -2225,7 +2225,9 @@ int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping); int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count); int bnx2x_vfpf_release(struct bnx2x *bp); int bnx2x_vfpf_init(struct bnx2x *bp); +void bnx2x_vfpf_close_vf(struct bnx2x *bp); int bnx2x_vfpf_setup_q(struct bnx2x *bp, int fp_idx); +int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx); int bnx2x_vfpf_set_mac(struct bnx2x *bp); int bnx2x_nic_load_analyze_req(struct bnx2x *bp, u32 load_code); /* Congestion management fairness mode */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index f7b23c2..362451d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -2790,8 +2790,13 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link) /* wait till consumers catch up with producers in all queues */ bnx2x_drain_tx_queues(bp); - /* Cleanup the chip if needed */ - if (unload_mode != UNLOAD_RECOVERY) + /* if VF indicate to PF this function is going down (PF will delete sp + * elements and clear initializations + */ + if (IS_VF(bp)) + bnx2x_vfpf_close_vf(bp); + else if (unload_mode != UNLOAD_RECOVERY) + /* if this is a normal/close unload need to clean up chip*/ bnx2x_chip_cleanup(bp, unload_mode, keep_link); else { /* Send the UNLOAD_REQUEST to the MCP */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 9a41072..ea87d96 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -13472,6 +13472,55 @@ int bnx2x_vfpf_init(struct bnx2x *bp) return 0; } +/* CLOSE VF - opposite to INIT_VF */ +void bnx2x_vfpf_close_vf(struct bnx2x *bp) +{ + struct vfpf_close_tlv *req = &bp->vf2pf_mbox->req.close; + struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp; + int i, rc; + u32 vf_id; + + /* If we haven't got a valid VF id, there is no sense to + * continue with sending messages + */ + if (bnx2x_get_vf_id(bp, &vf_id)) + goto free_irq; + + /* Close the queues */ + for_each_queue(bp, i) + bnx2x_vfpf_teardown_queue(bp, i); + + /* clear mailbox and prep first tlv */ + bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_CLOSE, sizeof(*req)); + + req->vf_id = vf_id; + + /* add list termination tlv */ + bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END, + sizeof(struct channel_list_end_tlv)); + + /* output tlvs list */ + bnx2x_dp_tlv_list(bp, req); + + rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping); + + if (rc) + BNX2X_ERR("Sending CLOSE failed. rc was: %d\n", rc); + + else if (resp->hdr.status != PFVF_STATUS_SUCCESS) + BNX2X_ERR("Sending CLOSE failed: pf response was %d\n", + resp->hdr.status); + +free_irq: + /* Disable HW interrupts, NAPI */ + bnx2x_netif_stop(bp, 0); + /* Delete all NAPI objects */ + bnx2x_del_all_napi(bp); + + /* Release IRQs */ + bnx2x_free_irq(bp); +} + /* ask the pf to open a queue for the vf */ int bnx2x_vfpf_setup_q(struct bnx2x *bp, int fp_idx) { @@ -13552,6 +13601,42 @@ int bnx2x_vfpf_setup_q(struct bnx2x *bp, int fp_idx) return rc; } +int bnx2x_vfpf_teardown_queue(struct bnx2x *bp, int qidx) +{ + struct vfpf_q_op_tlv *req = &bp->vf2pf_mbox->req.q_op; + struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp; + int rc; + + /* clear mailbox and prep first tlv */ + bnx2x_vfpf_prep(bp, &req->first_tlv, CHANNEL_TLV_TEARDOWN_Q, + sizeof(*req)); + + req->vf_qid = qidx; + + /* add list termination tlv */ + bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END, + sizeof(struct channel_list_end_tlv)); + + /* output tlvs list */ + bnx2x_dp_tlv_list(bp, req); + + rc = bnx2x_send_msg2pf(bp, &resp->hdr.status, bp->vf2pf_mbox_mapping); + + if (rc) { + BNX2X_ERR("Sending TEARDOWN for queue %d failed: %d\n", qidx, + rc); + return rc; + } + + if (resp->hdr.status != PFVF_STATUS_SUCCESS) { + BNX2X_ERR("TEARDOWN for queue %d failed: %d\n", qidx, + resp->hdr.status); + return -EINVAL; + } + + return 0; +} + /* request pf to add a mac for the vf */ int bnx2x_vfpf_set_mac(struct bnx2x *bp) { diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h index 12889f0..ed4a618 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h @@ -111,6 +111,13 @@ struct vfpf_acquire_tlv { aligned_u64 bulletin_addr; }; +/* simple operation request on queue */ +struct vfpf_q_op_tlv { + struct vfpf_first_tlv first_tlv; + u8 vf_qid; + u8 padding[3]; +}; + /* acquire response tlv - carries the allocated resources */ struct pfvf_acquire_resp_tlv { struct pfvf_tlv hdr; @@ -247,6 +254,13 @@ struct vfpf_set_q_filters_tlv { u32 rx_mask; /* see mask constants at the top of the file */ }; +/* close VF (disable VF) */ +struct vfpf_close_tlv { + struct vfpf_first_tlv first_tlv; + u16 vf_id; /* for debug */ + u8 padding[2]; +}; + /* release the VF's acquired resources */ struct vfpf_release_tlv { struct vfpf_first_tlv first_tlv; @@ -262,6 +276,8 @@ union vfpf_tlvs { struct vfpf_first_tlv first_tlv; struct vfpf_acquire_tlv acquire; struct vfpf_init_tlv init; + struct vfpf_close_tlv close; + struct vfpf_q_op_tlv q_op; struct vfpf_setup_q_tlv setup_q; struct vfpf_set_q_filters_tlv set_q_filters; struct vfpf_release_tlv release; @@ -284,6 +300,8 @@ enum channel_tlvs { CHANNEL_TLV_INIT, CHANNEL_TLV_SETUP_Q, CHANNEL_TLV_SET_Q_FILTERS, + CHANNEL_TLV_TEARDOWN_Q, + CHANNEL_TLV_CLOSE, CHANNEL_TLV_RELEASE, CHANNEL_TLV_LIST_END, CHANNEL_TLV_MAX