diff mbox series

[API-NEXT,v1,1/1] linux-generic: packet: add functions to optimize memset and memcmp paths

Message ID 1494882012-30270-2-git-send-email-odpbot@yandex.ru
State Superseded
Headers show
Series [API-NEXT,v1,1/1] linux-generic: packet: add functions to optimize memset and memcmp paths | expand

Commit Message

Github ODP bot May 15, 2017, 9 p.m. UTC 
From: Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org>


Add function implementing memset and memcmp on packet object.

Signed-off-by: Dmitry Eremin-Solenikov <dmitry.ereminsolenikov@linaro.org>

---
/** Email created from pull request 18 (lumag:packet-zero)
 ** https://github.com/Linaro/odp/pull/18
 ** Patch: https://github.com/Linaro/odp/pull/18.patch
 ** Base sha: 900dd9e2d3d2ae751ab2bc4e11dbd48ea7ed7030
 ** Merge commit sha: 2c8f402e929c8d49c62dede47add2b8046672607
 **/
 .../linux-generic/include/odp_packet_internal.h    |  6 +++
 platform/linux-generic/odp_packet.c                | 48 ++++++++++++++++++++++
 2 files changed, 54 insertions(+)
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Patch

diff --git a/platform/linux-generic/include/odp_packet_internal.h b/platform/linux-generic/include/odp_packet_internal.h
index d0db700..a480a74 100644
--- a/platform/linux-generic/include/odp_packet_internal.h
+++ b/platform/linux-generic/include/odp_packet_internal.h
@@ -237,6 +237,12 @@  int packet_parse_common(packet_parser_t *pkt_hdr, const uint8_t *ptr,
 
 int _odp_cls_parse(odp_packet_hdr_t *pkt_hdr, const uint8_t *parseptr);
 
+int _odp_packet_set_data(odp_packet_t pkt, uint32_t offset,
+			 uint8_t c, uint32_t len);
+
+int _odp_packet_cmp_data(odp_packet_t pkt, uint32_t offset,
+			 const void *s, uint32_t len);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/platform/linux-generic/odp_packet.c b/platform/linux-generic/odp_packet.c
index 9ff642b..6799c6e 100644
--- a/platform/linux-generic/odp_packet.c
+++ b/platform/linux-generic/odp_packet.c
@@ -1634,6 +1634,54 @@  int odp_packet_move_data(odp_packet_t pkt, uint32_t dst_offset,
 					pkt, src_offset, len);
 }
 
+int _odp_packet_set_data(odp_packet_t pkt, uint32_t offset,
+			 uint8_t c, uint32_t len)
+{
+	void *mapaddr;
+	uint32_t seglen = 0; /* GCC */
+	uint32_t setlen;
+	odp_packet_hdr_t *pkt_hdr = packet_hdr(pkt);
+
+	if (offset + len > pkt_hdr->frame_len)
+		return -1;
+
+	while (len > 0) {
+		mapaddr = packet_map(pkt_hdr, offset, &seglen, NULL);
+		setlen = len > seglen ? seglen : len;
+		memset(mapaddr, c, setlen);
+		offset  += setlen;
+		len     -= setlen;
+	}
+
+	return 0;
+}
+
+int _odp_packet_cmp_data(odp_packet_t pkt, uint32_t offset,
+			 const void *s, uint32_t len)
+{
+	const uint8_t *ptr = s;
+	void *mapaddr;
+	uint32_t seglen = 0; /* GCC */
+	uint32_t cmplen;
+	int ret;
+	odp_packet_hdr_t *pkt_hdr = packet_hdr(pkt);
+
+	ODP_ASSERT(offset + len <= pkt_hdr->frame_len);
+
+	while (len > 0) {
+		mapaddr = packet_map(pkt_hdr, offset, &seglen, NULL);
+		cmplen = len > seglen ? seglen : len;
+		ret = memcmp(mapaddr, ptr, cmplen);
+		if (ret != 0)
+			return ret;
+		offset  += cmplen;
+		len     -= cmplen;
+		ptr     += cmplen;
+	}
+
+	return 0;
+}
+
 /*
  *
  * Debugging