From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dennis Dalessandro Subject: [PATCH for-next 1/9] IB/hfi1: Acquire QSFP cable information on loopback Date: Mon, 28 Aug 2017 11:23:21 -0700 Message-ID: <20170828182319.29434.60189.stgit@scvm10.sc.intel.com> References: <20170828182121.29434.18989.stgit@scvm10.sc.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170828182121.29434.18989.stgit-9QXIwq+3FY+1XWohqUldA0EOCMrvLtNR@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jan Sokolowski List-Id: linux-rdma@vger.kernel.org From: Jan Sokolowski Currently, QSFP information is not queried in cases where loopback was set up and QSFP module is present. Acquire QSFP information in case of loopback. Reviewed-by: Dennis Dalessandro Signed-off-by: Jan Sokolowski Signed-off-by: Dennis Dalessandro --- drivers/infiniband/hw/hfi1/platform.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/platform.c b/drivers/infiniband/hw/hfi1/platform.c index 8004f1d..a8af96d 100644 --- a/drivers/infiniband/hw/hfi1/platform.c +++ b/drivers/infiniband/hw/hfi1/platform.c @@ -944,6 +944,21 @@ void tune_serdes(struct hfi1_pportdata *ppd) if (loopback != LOOPBACK_NONE || ppd->dd->icode == ICODE_FUNCTIONAL_SIMULATOR) { ppd->driver_link_ready = 1; + + if (qsfp_mod_present(ppd)) { + ret = acquire_chip_resource(ppd->dd, + qsfp_resource(ppd->dd), + QSFP_WAIT); + if (ret) { + dd_dev_err(ppd->dd, "%s: hfi%d: cannot lock i2c chain\n", + __func__, (int)ppd->dd->hfi1_id); + goto bail; + } + + refresh_qsfp_cache(ppd, &ppd->qsfp_info); + release_chip_resource(ppd->dd, qsfp_resource(ppd->dd)); + } + return; } -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html