From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shijith Thotton Subject: [PATCH v2 12/46] net/liquidio: add API for VF FLR Date: Thu, 2 Mar 2017 17:02:17 +0530 Message-ID: <1488454371-3342-13-git-send-email-shijith.thotton@caviumnetworks.com> References: <1487669225-30091-1-git-send-email-shijith.thotton@caviumnetworks.com> <1488454371-3342-1-git-send-email-shijith.thotton@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Cc: dev@dpdk.org, Jerin Jacob , Derek Chickles , Venkat Koppula , Srisivasubramanian S , Mallesham Jatharakonda To: ferruh.yigit@intel.com Return-path: Received: from NAM03-BY2-obe.outbound.protection.outlook.com (mail-by2nam03on0073.outbound.protection.outlook.com [104.47.42.73]) by dpdk.org (Postfix) with ESMTP id 64B20F965 for ; Thu, 2 Mar 2017 12:38:33 +0100 (CET) In-Reply-To: <1488454371-3342-1-git-send-email-shijith.thotton@caviumnetworks.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" VF sends Function Level Reset request to PF using mbox and PF does the reset. Signed-off-by: Shijith Thotton Signed-off-by: Jerin Jacob Signed-off-by: Derek Chickles Signed-off-by: Venkat Koppula Signed-off-by: Srisivasubramanian S Signed-off-by: Mallesham Jatharakonda --- drivers/net/liquidio/base/lio_23xx_vf.c | 19 +++++++++++++++++++ drivers/net/liquidio/base/lio_23xx_vf.h | 2 ++ drivers/net/liquidio/base/lio_mbox.h | 1 + drivers/net/liquidio/lio_ethdev.c | 5 +++++ 4 files changed, 27 insertions(+) diff --git a/drivers/net/liquidio/base/lio_23xx_vf.c b/drivers/net/liquidio/base/lio_23xx_vf.c index 6270af5..ed5b830 100644 --- a/drivers/net/liquidio/base/lio_23xx_vf.c +++ b/drivers/net/liquidio/base/lio_23xx_vf.c @@ -255,6 +255,25 @@ return 0; } +void +cn23xx_vf_ask_pf_to_do_flr(struct lio_device *lio_dev) +{ + struct lio_mbox_cmd mbox_cmd; + + mbox_cmd.msg.mbox_msg64 = 0; + mbox_cmd.msg.s.type = LIO_MBOX_REQUEST; + mbox_cmd.msg.s.resp_needed = 0; + mbox_cmd.msg.s.cmd = LIO_VF_FLR_REQUEST; + mbox_cmd.msg.s.len = 1; + mbox_cmd.q_no = 0; + mbox_cmd.recv_len = 0; + mbox_cmd.recv_status = 0; + mbox_cmd.fn = NULL; + mbox_cmd.fn_arg = 0; + + lio_mbox_write(lio_dev, &mbox_cmd); +} + static void cn23xx_pfvf_hs_callback(struct lio_device *lio_dev, struct lio_mbox_cmd *cmd, void *arg) diff --git a/drivers/net/liquidio/base/lio_23xx_vf.h b/drivers/net/liquidio/base/lio_23xx_vf.h index 83dc053..ad8db0d 100644 --- a/drivers/net/liquidio/base/lio_23xx_vf.h +++ b/drivers/net/liquidio/base/lio_23xx_vf.h @@ -87,6 +87,8 @@ #define CN23XX_VF_BUSY_READING_REG_LOOP_COUNT 100000 +void cn23xx_vf_ask_pf_to_do_flr(struct lio_device *lio_dev); + int cn23xx_pfvf_handshake(struct lio_device *lio_dev); int cn23xx_vf_setup_device(struct lio_device *lio_dev); diff --git a/drivers/net/liquidio/base/lio_mbox.h b/drivers/net/liquidio/base/lio_mbox.h index f1c5b8e..b0875d6 100644 --- a/drivers/net/liquidio/base/lio_mbox.h +++ b/drivers/net/liquidio/base/lio_mbox.h @@ -43,6 +43,7 @@ #define LIO_MBOX_DATA_MAX 32 #define LIO_VF_ACTIVE 0x1 +#define LIO_VF_FLR_REQUEST 0x2 #define LIO_CORES_CRASHED 0x3 /* Macro for Read acknowledgment */ diff --git a/drivers/net/liquidio/lio_ethdev.c b/drivers/net/liquidio/lio_ethdev.c index bebe0e8..5aae105 100644 --- a/drivers/net/liquidio/lio_ethdev.c +++ b/drivers/net/liquidio/lio_ethdev.c @@ -112,6 +112,11 @@ if (cn23xx_pfvf_handshake(lio_dev)) goto error; + /* Initial reset */ + cn23xx_vf_ask_pf_to_do_flr(lio_dev); + /* Wait for FLR for 100ms per SRIOV specification */ + rte_delay_ms(100); + if (cn23xx_vf_set_io_queues_off(lio_dev)) { lio_dev_err(lio_dev, "Setting io queues off failed\n"); goto error; -- 1.8.3.1