add SO_REUSEPORT for UDP sockets

Add the option SO_REUSEPORT similar to the linux implementation. Packets
always get distributed round-robin between all sockets.
This is used to scale the dbmd to mo

add SO_REUSEPORT for UDP sockets

Add the option SO_REUSEPORT similar to the linux implementation. Packets
always get distributed round-robin between all sockets.
This is used to scale the dbmd to more threads.

refs #3851

(cherry picked from commit 830a3b79d1f8a0dac43005b0b5e6336ba95b187e)

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ipf/fastroute: fix wrong IP-Header checksum, support LSO

The function ire_send_wire_v4() is called twice in the course of
ipf/fastroute, via 'quick .. to <if>'.

Checksums are prepared during the fi

ipf/fastroute: fix wrong IP-Header checksum, support LSO

The function ire_send_wire_v4() is called twice in the course of
ipf/fastroute, via 'quick .. to <if>'.

Checksums are prepared during the first call. They must not be
changed in the second. None of the two case (IXAF_SET_ULP_CKSUM set or
not) works with offloading: Either the partial tcp cksum is calculated
twice and wrong in the end, or the ip-header is calculated in software
and the hardware later calculates it to zero.

In case of not-offloading the csum is already calculated. Header value
must not be changed, namely ipha_ident must not be set again.

The origial ixa is lost when a package takes the fr_fastroute() path.
In case of LSO ixa_fragsize was set to IP_MAXPACKET now it's the normal
mtu. Pkgsize check must be skippted, too.

refs #4279

(cherry picked from commit bc91030d4fe6e89411348707603356ab2077b1c7)

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11556 ip_attr.c functions need to not dereference conn_ixa directly after lock drop
Reviewed by: Jason King <jbk@joyent.com>
Reviewed by: Mike Gerdts <mgerdts@joyent.com>
Reviewed by: Andy Fiddaman <

11556 ip_attr.c functions need to not dereference conn_ixa directly after lock drop
Reviewed by: Jason King <jbk@joyent.com>
Reviewed by: Mike Gerdts <mgerdts@joyent.com>
Reviewed by: Andy Fiddaman <andy@omniosce.org>
Approved by: Gordon Ross <gwr@nexenta.com>

(cherry picked from commit 51a1f7c40f010b3ea320fda32ec43145b29f5579)

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5123 IP DCE does not scale - part deux
Reviewed by: Dan McDonald <danmcd@joyent.com>
Reviewed by: Avnindra Singh <Avnindra.Singh@exponential.com>
Reviewed by: Sanjay Pokhriyal <Sanjay.Pokhriyal@expon

5123 IP DCE does not scale - part deux
Reviewed by: Dan McDonald <danmcd@joyent.com>
Reviewed by: Avnindra Singh <Avnindra.Singh@exponential.com>
Reviewed by: Sanjay Pokhriyal <Sanjay.Pokhriyal@exponential.com>
Approved by: Gordon Ross <gordon.ross@nexenta.com>

(cherry picked from commit 125fca98f27eae215e9a2959644cc46cda559262)

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6324 Add an `ndp' tool for manipulating the neighbors table
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Alex Wilson <alex.wilson@joyent.com>
Reviewed by: Dan McDonald <danmcd@omniti.co

6324 Add an `ndp' tool for manipulating the neighbors table
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Alex Wilson <alex.wilson@joyent.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Richard Lowe <richlowe@richlowe.net>

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6141 use kmem_zalloc instead of kmem_alloc + bzero/memset
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Marcel Telka <marcel@telka.sk>
R

6141 use kmem_zalloc instead of kmem_alloc + bzero/memset
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Marcel Telka <marcel@telka.sk>
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Dan McDonald <danmcd@omniti.com>

show more ...