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Message-Id: <1713954848-30299-1-git-send-email-shradhagupta@linux.microsoft.com>
Date: Wed, 24 Apr 2024 03:34:08 -0700
From: Shradha Gupta <shradhagupta@...ux.microsoft.com>
To: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Jonathan Corbet <corbet@....net>,
Randy Dunlap <rdunlap@...radead.org>,
Johannes Berg <johannes.berg@...el.com>,
Breno Leitao <leitao@...ian.org>,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org,
"K. Y. Srinivasan" <kys@...rosoft.com>,
Haiyang Zhang <haiyangz@...rosoft.com>,
Wei Liu <wei.liu@...nel.org>,
Dexuan Cui <decui@...rosoft.com>,
Long Li <longli@...rosoft.com>,
Souradeep Chakrabarti <schakrabarti@...ux.microsoft.com>,
Konstantin Taranov <kotaranov@...rosoft.com>,
Yury Norov <yury.norov@...il.com>,
linux-hyperv@...r.kernel.org
Cc: Shradha Gupta <shradhagupta@...ux.microsoft.com>,
shradhagupta@...rosoft.com
Subject: [PATCH net-next v2 2/2] net: mana: Add new device attributes for mana
Add new device attributes to read num_ports and max_num_msix setting for
MANA device.
Signed-off-by: Shradha Gupta <shradhagupta@...ux.microsoft.com>
---
Changes in v2
* Used the suggested method(v1 dicsussion) to implement sysfs device parameters
for MANA device
* Implemented attributes max_mtu and min_mtu generically for all device
drivers
---
.../net/ethernet/microsoft/mana/gdma_main.c | 32 +++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 1332db9a08eb..e35f984e34ce 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
@@ -1471,6 +1471,37 @@ static bool mana_is_pf(unsigned short dev_id)
return dev_id == MANA_PF_DEVICE_ID;
}
+static ssize_t num_ports_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct gdma_context *gc = pci_get_drvdata(pdev);
+ struct mana_context *ac = gc->mana.driver_data;
+
+ return sysfs_emit(buf, "%d\n", ac->num_ports);
+}
+
+static DEVICE_ATTR_RO(num_ports);
+
+static ssize_t max_num_msix_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct gdma_context *gc = pci_get_drvdata(pdev);
+
+ return sysfs_emit(buf, "%d\n", gc->max_num_msix);
+}
+
+static DEVICE_ATTR_RO(max_num_msix);
+
+static struct attribute *mana_gd_device_attrs[] = {
+ &dev_attr_num_ports.attr,
+ &dev_attr_max_num_msix.attr,
+ NULL,
+};
+
+ATTRIBUTE_GROUPS(mana_gd_device);
+
static int mana_gd_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct gdma_context *gc;
@@ -1613,6 +1644,7 @@ static const struct pci_device_id mana_id_table[] = {
};
static struct pci_driver mana_driver = {
+ .dev_groups = mana_gd_device_groups,
.name = "mana",
.id_table = mana_id_table,
.probe = mana_gd_probe,
--
2.34.1
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