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NTB: MFV 9891417d: Increase transport MTU to 64k from 16k

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Benchmarking showed a significant performance increase with the MTU size
to 64k instead of 16k.  Change the driver default to 64k.

Authored by:	Dave Jiang
Obtained from:	Linux (Dual BSD/GPL driver)
Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Conrad Meyer 2015-10-20 01:54:43 +00:00
parent 6a88fb3ef8
commit 98580c064c
1 changed files with 1 additions and 1 deletions
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2
sys/dev/ntb/if_ntb/if_ntb.c
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@ -90,7 +90,7 @@ enum ntb_link_event {
NTB_LINK_UP,
};
static unsigned int transport_mtu = 0x4000 + ETHER_HDR_LEN + ETHER_CRC_LEN;
static unsigned int transport_mtu = 0x10000 + ETHER_HDR_LEN + ETHER_CRC_LEN;
static uint64_t max_mw_size;
SYSCTL_UQUAD(_hw_ntb, OID_AUTO, max_mw_size, CTLFLAG_RDTUN, &max_mw_size, 0,