diff options
Diffstat (limited to 'dpdk/dpdk-2.1.0_patches/0002-mbuf-rearrange-rte_mbuf-metadata-to-suit-vpp.patch')
| -rw-r--r-- | dpdk/dpdk-2.1.0_patches/0002-mbuf-rearrange-rte_mbuf-metadata-to-suit-vpp.patch | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/dpdk/dpdk-2.1.0_patches/0002-mbuf-rearrange-rte_mbuf-metadata-to-suit-vpp.patch b/dpdk/dpdk-2.1.0_patches/0002-mbuf-rearrange-rte_mbuf-metadata-to-suit-vpp.patch deleted file mode 100644 index 2ce5004a..00000000 --- a/dpdk/dpdk-2.1.0_patches/0002-mbuf-rearrange-rte_mbuf-metadata-to-suit-vpp.patch +++ /dev/null @@ -1,107 +0,0 @@ -From 3609c4fb4d07d4285e96187598f54cb21e9e9b08 Mon Sep 17 00:00:00 2001 -From: Shesha Sreenivasamurthy <shesha@cisco.com> -Date: Wed, 2 Sep 2015 08:57:24 -0700 -Subject: [PATCH 2/9] mbuf: rearrange rte_mbuf metadata to suit vpp - -Offload structure in the second cache line, next pointer in the -first cache line. Issue reported to Intel. ---- - .../linuxapp/eal/include/exec-env/rte_kni_common.h | 10 +++++++-- - lib/librte_mbuf/rte_mbuf.h | 25 ++++++++++++++-------- - 2 files changed, 24 insertions(+), 11 deletions(-) - -diff --git a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h -index e9f38bd..d327f71 100644 ---- a/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h -+++ b/lib/librte_eal/linuxapp/eal/include/exec-env/rte_kni_common.h -@@ -111,6 +111,10 @@ struct rte_kni_fifo { - * The kernel image of the rte_mbuf struct, with only the relevant fields. - * Padding is necessary to assure the offsets of these fields - */ -+/* -+ * offload in the second cache line, next in the first. Better for vpp -+ * at least as of right now. -+ */ - struct rte_kni_mbuf { - void *buf_addr __attribute__((__aligned__(RTE_CACHE_LINE_SIZE))); - char pad0[10]; -@@ -121,16 +125,18 @@ struct rte_kni_mbuf { - char pad2[4]; - uint32_t pkt_len; /**< Total pkt len: sum of all segment data_len. */ - uint16_t data_len; /**< Amount of data in segment buffer. */ -+ char pad3[2]; - #else - char pad2[2]; - uint16_t data_len; /**< Amount of data in segment buffer. */ - uint32_t pkt_len; /**< Total pkt len: sum of all segment data_len. */ -+ char pad3[4]; - #endif -+ void *next; - - /* fields on second cache line */ -- char pad3[8] __attribute__((__aligned__(RTE_CACHE_LINE_SIZE))); -+ char pad4[12] __attribute__((__aligned__(RTE_CACHE_LINE_SIZE))); - void *pool; -- void *next; - }; - - /* -diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h -index 8c2db1b..61cbbd7 100644 ---- a/lib/librte_mbuf/rte_mbuf.h -+++ b/lib/librte_mbuf/rte_mbuf.h -@@ -743,6 +743,12 @@ typedef uint64_t MARKER64[0]; /**< marker that allows us to overwrite 8 bytes - /** - * The generic rte_mbuf, containing a packet mbuf. - */ -+/* -+ * offload in the second cache line, next in the first. Better for vpp -+ * at least as of right now. -+ * If you change this structure, you must change the user-mode -+ * version in rte_mbuf.h -+ */ - struct rte_mbuf { - MARKER cacheline0; - -@@ -809,6 +815,16 @@ struct rte_mbuf { - uint16_t vlan_tci; /**< VLAN Tag Control Identifier (CPU order) */ - uint16_t vlan_tci_outer; /**< Outer VLAN Tag Control Identifier (CPU order) */ - #endif /* RTE_NEXT_ABI */ -+ struct rte_mbuf *next; /**< Next segment of scattered packet. */ -+ -+ uint32_t seqn; /**< Sequence number. See also rte_reorder_insert() */ -+#ifdef RTE_NEXT_ABI -+ uint16_t vlan_tci_outer; /**< Outer VLAN Tag Control Identifier (CPU order) */ -+#endif /* RTE_NEXT_ABI */ -+ -+ /* second cache line - fields only used in slow path or on TX */ -+ MARKER cacheline1 __rte_cache_aligned; -+ - union { - uint32_t rss; /**< RSS hash result if RSS enabled */ - struct { -@@ -828,21 +844,12 @@ struct rte_mbuf { - uint32_t usr; /**< User defined tags. See rte_distributor_process() */ - } hash; /**< hash information */ - -- uint32_t seqn; /**< Sequence number. See also rte_reorder_insert() */ --#ifdef RTE_NEXT_ABI -- uint16_t vlan_tci_outer; /**< Outer VLAN Tag Control Identifier (CPU order) */ --#endif /* RTE_NEXT_ABI */ -- -- /* second cache line - fields only used in slow path or on TX */ -- MARKER cacheline1 __rte_cache_aligned; -- - union { - void *userdata; /**< Can be used for external metadata */ - uint64_t udata64; /**< Allow 8-byte userdata on 32-bit */ - }; - - struct rte_mempool *pool; /**< Pool from which mbuf was allocated. */ -- struct rte_mbuf *next; /**< Next segment of scattered packet. */ - - /* fields to support TX offloads */ - union { --- -2.5.0 - |