Thomas Monjalon
4630290af4
mbuf: move pool pointer in first half
...
According to the Technical Board decision
(http://mails.dpdk.org/archives/dev/2020-November/191859.html ),
the mempool pointer in the mbuf struct is moved
from the second to the first half.
It may increase performance in some cases
on systems having 64-byte cache line, i.e. mbuf split in two cache lines.
Due to this change, all fields after "pool" are moved up.
Hopefully no vector data path is impacted.
Moving this field gives more space to dynfield1
while dropping the temporary dynfield0.
This is how the mbuf layout looks like (pahole-style):
word type name byte size
0 void * buf_addr; /* 0 + 8 */
1 rte_iova_t buf_iova /* 8 + 8 */
/* --- RTE_MARKER64 rearm_data; */
2 uint16_t data_off; /* 16 + 2 */
uint16_t refcnt; /* 18 + 2 */
uint16_t nb_segs; /* 20 + 2 */
uint16_t port; /* 22 + 2 */
3 uint64_t ol_flags; /* 24 + 8 */
/* --- RTE_MARKER rx_descriptor_fields1; */
4 uint32_t union packet_type; /* 32 + 4 */
uint32_t pkt_len; /* 36 + 4 */
5 uint16_t data_len; /* 40 + 2 */
uint16_t vlan_tci; /* 42 + 2 */
5.5 uint64_t union hash; /* 44 + 8 */
6.5 uint16_t vlan_tci_outer; /* 52 + 2 */
uint16_t buf_len; /* 54 + 2 */
7 struct rte_mempool * pool; /* 56 + 8 */
/* --- RTE_MARKER cacheline1; */
8 struct rte_mbuf * next; /* 64 + 8 */
9 uint64_t union tx_offload; /* 72 + 8 */
10 struct rte_mbuf_ext_shared_info * shinfo; /* 80 + 8 */
11 uint16_t priv_size; /* 88 + 2 */
uint16_t timesync; /* 90 + 2 */
11.5 uint32_t dynfield1[9]; /* 92 + 36 */
16 /* --- END 128 */
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
2020-11-12 16:39:10 +01:00
Thomas Monjalon
5284adad3e
mbuf: remove userdata field
...
As announced in the deprecation note, the field userdata / udata64
is removed to give more space to the dynamic fields.
This is how the mbuf layout looks like (pahole-style):
word type name byte size
0 void * buf_addr; /* 0 + 8 */
1 rte_iova_t buf_iova /* 8 + 8 */
/* --- RTE_MARKER64 rearm_data; */
2 uint16_t data_off; /* 16 + 2 */
uint16_t refcnt; /* 18 + 2 */
uint16_t nb_segs; /* 20 + 2 */
uint16_t port; /* 22 + 2 */
3 uint64_t ol_flags; /* 24 + 8 */
/* --- RTE_MARKER rx_descriptor_fields1; */
4 uint32_t union packet_type; /* 32 + 4 */
uint32_t pkt_len; /* 36 + 4 */
5 uint16_t data_len; /* 40 + 2 */
uint16_t vlan_tci; /* 42 + 2 */
5.5 uint64_t union hash; /* 44 + 8 */
6.5 uint16_t vlan_tci_outer; /* 52 + 2 */
uint16_t buf_len; /* 54 + 2 */
7 uint64_t timestamp; /* 56 + 8 */
/* --- RTE_MARKER cacheline1; */
8 struct rte_mempool * pool; /* 64 + 8 */
9 struct rte_mbuf * next; /* 72 + 8 */
10 uint64_t union tx_offload; /* 80 + 8 */
11 uint16_t priv_size; /* 88 + 2 */
uint16_t timesync; /* 90 + 2 */
uint32_t seqn; /* 92 + 4 */
12 struct rte_mbuf_ext_shared_info * shinfo; /* 96 + 8 */
13 uint64_t dynfield1[3]; /* 104 + 24 */
16 /* --- END 128 */
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2020-10-31 16:13:11 +01:00
Thomas Monjalon
905592f4c4
kni: move header file from EAL
...
Since the kernel module is not part of EAL anymore,
there is no need to have the common KNI header file in EAL.
The file rte_kni_common.h is moved to librte_kni.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-10-31 16:13:10 +01:00
