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2009-12-27llc: convert llc_sap_list to RCUOctavian Purdila1-1/+1
Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-27llc: replace the socket list with a local address based hashOctavian Purdila1-1/+20
For the cases where a lot of interfaces are used in conjunction with a lot of LLC sockets bound to the same SAP, the iteration of the socket list becomes prohibitively expensive. Replacing the list with a a local address based hash significantly improves the bind and listener lookup operations as well as the datagram delivery. Connected sockets delivery is also improved, but this patch does not address the case where we have lots of sockets with the same local address connected to different remote addresses. In order to keep the socket sanity checks alive and fast a socket counter was added to the SAP structure. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-27llc: use a device based hash table to speed up multicast deliveryOctavian Purdila1-0/+11
This patch adds a per SAP device based hash table to solve the multicast delivery scalability issue when we have large number of interfaces and a large number of sockets bound to the same SAP. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-27llc: convert the socket list to RCU lockingOctavian Purdila1-4/+3
For the reclamation phase we use the SLAB_DESTROY_BY_RCU mechanism, which require some extra checks in the lookup code: a) If the current socket was released, reallocated & inserted in another list it will short circuit the iteration for the current list, thus we need to restart the lookup. b) If the current socket was released, reallocated & inserted in the same list we just need to recheck it matches the look-up criteria and if not we can skip to the next element. In this case there is no need to restart the lookup, since sockets are inserted at the start of the list and the worst that will happen is that we will iterate throught some of the list elements more then once. Note that the /proc and multicast delivery was not yet converted to RCU, it still uses spinlocks for protection. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-29[LLC]: station source mac addressJoonwoo Park1-1/+0
kill unnecessary llc_station_mac_sa. Signed-off-by: Joonwoo Park <joonwpark81@gmail.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-21[LLC]: llc_mac_hdr_init const argumentsStephen Hemminger1-1/+1
Cleanup of LLC. llc_mac_hdr_init can take constant arguments, and it is defined twice once in llc_output.h that is otherwise unused. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Acked-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-22[LLC]: Fix sparse warningsArnaldo Carvalho de Melo1-2/+11
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-09-22[LLC]: Use refcounting with struct llc_sapArnaldo Carvalho de Melo1-1/+15
Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-09-22[LLC]: Add sysctl support for the LLC timeoutsArnaldo Carvalho de Melo1-0/+7
Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-08-30[NET]: Kill skb->real_devDavid S. Miller1-3/+5
Bonding just wants the device before the skb_bond() decapsulation occurs, so simply pass that original device into packet_type->func() as an argument. It remains to be seen whether we can use this same exact thing to get rid of skb->input_dev as well. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+99
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!