From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: KY Srinivasan <kys@microsoft.com>,
Stephen Hemminger <shemming@brocade.com>
Subject: [dpdk-dev] [PATCH 1/7] ether: add function to query for link state interrupt
Date: Wed, 4 Feb 2015 17:13:23 -0800 [thread overview]
Message-ID: <1423098809-21305-2-git-send-email-stephen@networkplumber.org> (raw)
In-Reply-To: <1423098809-21305-1-git-send-email-stephen@networkplumber.org>
From: Stephen Hemminger <shemming@brocade.com>
Allow application to query whether link state will work.
This is also part of abstracting dependency on PCI.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/librte_ether/rte_ethdev.c | 14 ++++++++++++++
lib/librte_ether/rte_ethdev.h | 12 ++++++++++++
2 files changed, 26 insertions(+)
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index ea3a1fb..4d803d0 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -1264,6 +1264,20 @@ rte_eth_link_get_nowait(uint8_t port_id, struct rte_eth_link *eth_link)
}
}
+int
+rte_eth_has_link_state(uint8_t port_id)
+{
+ struct rte_eth_dev *dev;
+
+ if (port_id >= nb_ports) {
+ PMD_DEBUG_TRACE("Invalid port_id=%d\n", port_id);
+ return 0;
+ }
+ dev = &rte_eth_devices[port_id];
+
+ return (dev->pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC) != 0;
+}
+
void
rte_eth_stats_get(uint8_t port_id, struct rte_eth_stats *stats)
{
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 1200c1c..9d43ca3 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -2038,6 +2038,18 @@ extern void rte_eth_link_get_nowait(uint8_t port_id,
struct rte_eth_link *link);
/**
+ * Test whether device supports link state interrupt mode.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ * @return
+ * - (1) if link state interrupt is supported
+ * - (0) if link state interrupt is not supported
+ */
+extern int
+rte_eth_has_link_state(uint8_t port_id);
+
+/**
* Retrieve the general I/O statistics of an Ethernet device.
*
* @param port_id
--
2.1.4
next prev parent reply other threads:[~2015-02-05 1:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-05 1:13 [dpdk-dev] [PATCH 0/7] Hyper-v driver and infrastructure Stephen Hemminger
2015-02-05 1:13 ` Stephen Hemminger [this message]
2015-02-05 1:47 ` [dpdk-dev] [PATCH 1/7] ether: add function to query for link state interrupt Neil Horman
[not found] ` <2d9df6f5729c42a9a2b85a20b7316243@BRMWP-EXMB11.corp.brocade.com>
2015-02-05 5:49 ` Stephen Hemminger
2015-02-05 12:39 ` Neil Horman
2015-02-05 1:13 ` [dpdk-dev] [PATCH 2/7] pmd: change drivers initialization for pci Stephen Hemminger
2015-02-05 1:13 ` [dpdk-dev] [PATCH 3/7] hv: add basic vmbus support Stephen Hemminger
2015-02-05 1:50 ` Neil Horman
2015-02-05 1:13 ` [dpdk-dev] [PATCH 4/7] hv: uio driver Stephen Hemminger
2015-02-05 1:13 ` [dpdk-dev] [PATCH 5/7] hv: poll mode driver Stephen Hemminger
2015-02-05 1:13 ` [dpdk-dev] [PATCH 6/7] hv: enable driver in common config Stephen Hemminger
2015-02-05 1:13 ` [dpdk-dev] [PATCH 7/7] hv: add kernel patch Stephen Hemminger
2015-04-20 21:54 [dpdk-dev] [PATCH 0/7] Hyper-V Poll Mode Driver Stephen Hemminger
2015-04-20 21:54 ` [dpdk-dev] [PATCH 1/7] ether: add function to query for link state interrupt Stephen Hemminger
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