BMC/Intel-BMC/linux.git/drivers/infiniband/ulp/iser, branch dev

IB/core: Change ib_create_cq to use struct ib_cq_init_attr

2015-06-12T18:49:10+00:00

Currently, ib_create_cq uses cqe and comp_vecotr instead of the extendible ib_cq_init_attr struct. Earlier patches already changed the vendors to work with ib_cq_init_attr. This patch changes the consumers too. Signed-off-by: Matan Barak Signed-off-by: Or Gerlitz Signed-off-by: Doug Ledford

IB/iser: Align to generic logging helpers

2015-05-18T17:44:22+00:00

Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford

IB/iser: Rewrite bounce buffer code path

2015-04-15T20:07:14+00:00

In some rare cases, IO operations may be not aligned to page boundaries. This prevents iser from performing fast memory registration. In order to overcome that iser uses a bounce buffer to carry the transaction. We basically allocate a buffer in the size of the transaction and perform a copy. The buffer allocation using kmalloc is too restrictive since it requires higher order (atomic) allocations for large transactions (which may result in memory exhaustion fairly fast for some workloads). We rewrite the bounce buffer code path to allocate scattered pages and perform a copy between the transaction sg and the bounce sg. Reported-by: Alex Lyakas Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford

IB/iser: Bump version to 1.6

2015-04-15T20:07:13+00:00

Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford

IB/iser: Remove code duplication for a single DMA entry

2015-04-15T20:07:13+00:00

In singleton scatterlists, DMA memory registration code is taken both for Fastreg and FMR code paths. Move it to a function. This patch does not change any functionality. Signed-off-by: Sagi Grimberg Signed-off-by: Adir Lev Signed-off-by: Doug Ledford

IB/iser: Pass struct iser_mem_reg to iser_fast_reg_mr and iser_reg_sig_mr

2015-04-15T20:07:13+00:00

Instead of passing ib_sge as output variable, we pass the mem_reg pointer to have the routines fill the rkey as well. This reduces code duplication and extra assignments. This is a preparation step to unify some registration logics together. Also, pass iser_fast_reg_mr the fastreg descriptor directly. This patch does not change any functionality. Signed-off-by: Sagi Grimberg Signed-off-by: Adir Lev Signed-off-by: Doug Ledford

IB/iser: Modify struct iser_mem_reg members

2015-04-15T20:07:13+00:00

No need to keep lkey, va, len variables, we can keep them as struct ib_sge. This will help when we change the memory registration logic. This patch does not change any functionality. Signed-off-by: Sagi Grimberg Signed-off-by: Adir Lev Signed-off-by: Doug Ledford

IB/iser: Make fastreg pool cache friendly

2015-04-15T20:07:13+00:00

Memory regions are resources that are saved in the device caches. Increase the probability for a cache hit by adding the MRU descriptor to pool head. Signed-off-by: Sagi Grimberg Signed-off-by: Doug Ledford

IB/iser: Move PI context alloc/free to routines

2015-04-15T20:07:13+00:00

Make iser_[create|destroy]_fastreg_desc shorter, more readable and easily extendable. This patch does not change any functionality. Signed-off-by: Sagi Grimberg Signed-off-by: Adir Lev Signed-off-by: Doug Ledford

IB/iser: Move fastreg descriptor pool get/put to helper functions

2015-04-15T20:07:13+00:00

Instead of open-coding connection fastreg pool get/put, we introduce iser_reg_desc[get|put] helpers. We aren't setting these static as this will be a per-device routine later on. Also, cleanup iser_unreg_rdma_mem_fastreg a bit. This patch does not change any functionality. Signed-off-by: Sagi Grimberg Signed-off-by: Adir Lev Signed-off-by: Doug Ledford