From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Rybchenko Subject: [PATCH 2/4] net/sfc: sync link status knowledge with HW on start Date: Thu, 12 Jan 2017 09:03:21 +0000 Message-ID: <1484211803-21449-3-git-send-email-arybchenko@solarflare.com> References: <1484211803-21449-1-git-send-email-arybchenko@solarflare.com> Mime-Version: 1.0 Content-Type: text/plain To: Return-path: Received: from nbfkord-smmo02.seg.att.com (nbfkord-smmo02.seg.att.com [209.65.160.78]) by dpdk.org (Postfix) with ESMTP id 78B05592C for ; Thu, 12 Jan 2017 10:04:14 +0100 (CET) Received: from uklogin.uk.solarflarecom.com (uklogin.uk.solarflarecom.com [10.17.10.10]) by opal.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id v0C93fb1031675 for ; Thu, 12 Jan 2017 09:03:41 GMT Received: from uklogin.uk.solarflarecom.com (localhost.localdomain [127.0.0.1]) by uklogin.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id v0C93fkX021496 for ; Thu, 12 Jan 2017 09:03:41 GMT In-Reply-To: <1484211803-21449-1-git-send-email-arybchenko@solarflare.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" Fixes: 215e8b89d8a8 ("net/sfc: implement device operation to retrieve link info") Signed-off-by: Andrew Rybchenko Reviewed-by: Andrew Lee --- drivers/net/sfc/sfc_port.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/net/sfc/sfc_port.c b/drivers/net/sfc/sfc_port.c index dc6ecdf..e2d8544 100644 --- a/drivers/net/sfc/sfc_port.c +++ b/drivers/net/sfc/sfc_port.c @@ -61,6 +61,27 @@ return 0; } +static int +sfc_port_init_dev_link(struct sfc_adapter *sa) +{ + struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link; + int rc; + efx_link_mode_t link_mode; + struct rte_eth_link current_link; + + rc = efx_port_poll(sa->nic, &link_mode); + if (rc != 0) + return rc; + + sfc_port_link_mode_to_info(link_mode, ¤t_link); + + EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t)); + rte_atomic64_set((rte_atomic64_t *)dev_link, + *(uint64_t *)¤t_link); + + return 0; +} + int sfc_port_start(struct sfc_adapter *sa) { @@ -129,9 +150,17 @@ if (rc != 0) goto fail_mac_drain; + /* Synchronize link status knowledge */ + rc = sfc_port_init_dev_link(sa); + if (rc != 0) + goto fail_port_init_dev_link; + sfc_log_init(sa, "done"); return 0; +fail_port_init_dev_link: + (void)efx_mac_drain(sa->nic, B_TRUE); + fail_mac_drain: (void)efx_mac_stats_periodic(sa->nic, &port->mac_stats_dma_mem, 0, B_FALSE); -- 1.8.2.3