From: Xu Yilun <yilun.xu@intel.com>
To: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com,
davem@davemloft.net, kuba@kernel.org, mdf@kernel.org,
lee.jones@linaro.org
Cc: linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org,
netdev@vger.kernel.org, trix@redhat.com, lgoncalv@redhat.com,
yilun.xu@intel.com, hao.wu@intel.com
Subject: [RFC PATCH 3/6] fpga: dfl: add an API to get the base device for dfl device
Date: Fri, 23 Oct 2020 16:45:42 +0800 [thread overview]
Message-ID: <1603442745-13085-4-git-send-email-yilun.xu@intel.com> (raw)
In-Reply-To: <1603442745-13085-1-git-send-email-yilun.xu@intel.com>
This patch adds an API for dfl devices to find which physical device
owns the DFL.
This patch makes preparation for supporting DFL Ether Group private
feature driver. It uses this information to determine which retimer
device physically connects to which ether group.
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
---
drivers/fpga/dfl.c | 9 +++++++++
include/linux/dfl.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index ca3c678..52d18e6 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -558,6 +558,15 @@ int dfl_dev_get_vendor_net_cfg(struct dfl_device *dfl_dev)
}
EXPORT_SYMBOL_GPL(dfl_dev_get_vendor_net_cfg);
+struct device *dfl_dev_get_base_dev(struct dfl_device *dfl_dev)
+{
+ if (!dfl_dev || !dfl_dev->cdev)
+ return NULL;
+
+ return dfl_dev->cdev->parent;
+}
+EXPORT_SYMBOL_GPL(dfl_dev_get_base_dev);
+
#define is_header_feature(feature) ((feature)->id == FEATURE_ID_FIU_HEADER)
/**
diff --git a/include/linux/dfl.h b/include/linux/dfl.h
index 5ee2b1e..dd313f2 100644
--- a/include/linux/dfl.h
+++ b/include/linux/dfl.h
@@ -68,6 +68,7 @@ struct dfl_driver {
#define to_dfl_drv(d) container_of(d, struct dfl_driver, drv)
int dfl_dev_get_vendor_net_cfg(struct dfl_device *dfl_dev);
+struct device *dfl_dev_get_base_dev(struct dfl_device *dfl_dev);
/*
* use a macro to avoid include chaining to get THIS_MODULE.
--
2.7.4
next prev parent reply other threads:[~2020-10-23 8:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-23 8:45 [RFC PATCH 0/6] Add the netdev support for Intel PAC N3000 FPGA Xu Yilun
2020-10-23 8:45 ` [RFC PATCH 1/6] docs: networking: add the document for DFL Ether Group driver Xu Yilun
2020-10-23 15:37 ` Andrew Lunn
2020-10-26 8:52 ` Xu Yilun
2020-10-26 13:00 ` Andrew Lunn
2020-10-26 17:38 ` Xu Yilun
2020-10-26 18:35 ` Jakub Kicinski
2020-10-27 2:33 ` Xu Yilun
2020-10-26 19:14 ` Andrew Lunn
2020-10-27 3:27 ` Xu Yilun
2020-11-02 2:38 ` Xu Yilun
2020-11-02 14:46 ` Andrew Lunn
2020-10-24 14:25 ` Tom Rix
2020-10-23 8:45 ` [RFC PATCH 2/6] fpga: dfl: export network configuration info for DFL based FPGA Xu Yilun
2020-10-24 13:59 ` Tom Rix
2020-10-26 3:29 ` Wu, Hao
2020-10-23 8:45 ` Xu Yilun [this message]
2020-10-24 14:39 ` [RFC PATCH 3/6] fpga: dfl: add an API to get the base device for dfl device Tom Rix
2020-10-26 3:42 ` Wu, Hao
2020-10-23 8:45 ` [RFC PATCH 4/6] ethernet: m10-retimer: add support for retimers on Intel MAX 10 BMC Xu Yilun
2020-10-24 15:03 ` Tom Rix
2020-10-24 16:39 ` Andrew Lunn
2020-10-24 17:36 ` Tom Rix
2020-10-24 20:33 ` Andrew Lunn
2020-10-23 8:45 ` [RFC PATCH 5/6] ethernet: dfl-eth-group: add DFL eth group private feature driver Xu Yilun
2020-10-24 14:37 ` Andrew Lunn
2020-10-24 17:25 ` Tom Rix
2020-10-25 14:47 ` Andrew Lunn
2020-10-23 8:45 ` [RFC PATCH 6/6] ethernet: dfl-eth-group: add support for the 10G configurations Xu Yilun
2020-10-24 17:43 ` Tom Rix
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1603442745-13085-4-git-send-email-yilun.xu@intel.com \
--to=yilun.xu@intel.com \
--cc=anthony.l.nguyen@intel.com \
--cc=davem@davemloft.net \
--cc=hao.wu@intel.com \
--cc=jesse.brandeburg@intel.com \
--cc=kuba@kernel.org \
--cc=lee.jones@linaro.org \
--cc=lgoncalv@redhat.com \
--cc=linux-fpga@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mdf@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=trix@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).