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From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [dpdk-dev] [RFC 2/4] net/ether: add eth_unformat_addr
Date: Wed, 15 May 2019 15:19:50 -0700	[thread overview]
Message-ID: <20190515221952.21959-3-stephen@networkplumber.org> (raw)
Message-ID: <20190515221950.b1_mylHfSFNsKEqu1WcKZQqjV0DxBgnxPsbmSe9lrLw@z> (raw)
In-Reply-To: <20190515221952.21959-1-stephen@networkplumber.org>

Make a function that coresponds with eth_aton_r which can
be used to convert string to ether_addr.

This also allows rte_ethdev to no longer depend on the
cmdline library.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/librte_net/rte_ether.c         | 12 ++++++++++++
 lib/librte_net/rte_ether.h         | 14 ++++++++++++++
 lib/librte_net/rte_net_version.map |  1 +
 3 files changed, 27 insertions(+)

diff --git a/lib/librte_net/rte_ether.c b/lib/librte_net/rte_ether.c
index d4b41f122a16..ca7c841db197 100644
--- a/lib/librte_net/rte_ether.c
+++ b/lib/librte_net/rte_ether.c
@@ -27,3 +27,15 @@ ether_format_addr(char *buf, uint16_t size,
 		 eth_addr->addr_bytes[4],
 		 eth_addr->addr_bytes[5]);
 }
+
+int __rte_experimental
+ether_unformat_addr(const char *str, struct ether_addr *eth_addr)
+{
+	return (sscanf(str, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
+		       &eth_addr->addr_bytes[0],
+		       &eth_addr->addr_bytes[1],
+		       &eth_addr->addr_bytes[2],
+		       &eth_addr->addr_bytes[3],
+		       &eth_addr->addr_bytes[4],
+		       &eth_addr->addr_bytes[5]) == 6) ? 0 : -1;
+}
diff --git a/lib/librte_net/rte_ether.h b/lib/librte_net/rte_ether.h
index 46d40412763c..b94e64b2195e 100644
--- a/lib/librte_net/rte_ether.h
+++ b/lib/librte_net/rte_ether.h
@@ -248,6 +248,20 @@ void
 ether_format_addr(char *buf, uint16_t size,
 		  const struct ether_addr *eth_addr);
 
+/**
+ * Convert string with Ethernet address to an ether_addr.
+ *
+ * @param str
+ *   A pointer to buffer contains the formatted MAC address.
+ * @param eth_addr
+ *   A pointer to a ether_addr structure.
+ * @return
+ *   0 if successful
+ *   -1 and sets rte_errno if invalid string
+ */
+int __rte_experimental
+ether_unformat_addr(const char *str, struct ether_addr *eth_addr);
+
 /**
  * Ethernet header: Contains the destination address, source address
  * and frame type.
diff --git a/lib/librte_net/rte_net_version.map b/lib/librte_net/rte_net_version.map
index 49d34093781c..bbf14ff1cdfa 100644
--- a/lib/librte_net/rte_net_version.map
+++ b/lib/librte_net/rte_net_version.map
@@ -26,4 +26,5 @@ EXPERIMENTAL {
 
 	rte_net_make_rarp_packet;
 	rte_net_skip_ip6_ext;
+	eth_unformat_addr;
 };
-- 
2.20.1


  parent reply	other threads:[~2019-05-15 22:20 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-15 22:19 [dpdk-dev] [RFC 0/4] net/ether: improvements Stephen Hemminger
2019-05-15 22:19 ` Stephen Hemminger
2019-05-15 22:19 ` [dpdk-dev] [RFC 1/4] net/ether: deinline non-critical functions Stephen Hemminger
2019-05-15 22:19   ` Stephen Hemminger
2019-05-16  7:10   ` David Marchand
2019-05-16  7:10     ` David Marchand
2019-05-15 22:19 ` Stephen Hemminger [this message]
2019-05-15 22:19   ` [dpdk-dev] [RFC 2/4] net/ether: add eth_unformat_addr Stephen Hemminger
2019-05-16  7:28   ` David Marchand
2019-05-16  7:28     ` David Marchand
2019-05-15 22:19 ` [dpdk-dev] [RFC 3/4] ethdev: use eth_unformat_addr Stephen Hemminger
2019-05-15 22:19   ` Stephen Hemminger
2019-05-16  7:32   ` David Marchand
2019-05-16  7:32     ` David Marchand
2019-05-16 10:19   ` Bruce Richardson
2019-05-16 10:19     ` Bruce Richardson
2019-05-15 22:19 ` [dpdk-dev] [RFC 4/4] net/ether: use bitops to speedup comparison Stephen Hemminger
2019-05-15 22:19   ` Stephen Hemminger
2019-05-16  9:03   ` Mattias Rönnblom
2019-05-16  9:03     ` Mattias Rönnblom
2019-05-16 15:32     ` Stephen Hemminger
2019-05-16 16:03   ` Bruce Richardson
2019-05-16 16:06     ` Stephen Hemminger
2019-05-16 16:07       ` Bruce Richardson
2019-05-16 16:36         ` Bruce Richardson
2019-05-16 17:04           ` Stephen Hemminger
2019-05-16 20:37             ` Bruce Richardson
2019-05-16 20:41               ` Bruce Richardson

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