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IB/ipath: Fix ib_ipath driver to work with SRP 

I am still working on a proposal to remove the phys_to_virt() calls
in the ib_ipath driver.  In the mean time, this patch allows SRP
to work by fixing the R_Key check and conversion from IB address
to kernel virtual address.  It also returns the correct page size
for FMRs.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2006-07-17 18:19:54 -07:00 committed by Roland Dreier
parent 3d37b9e209
commit c9f79bdc21
2 changed files with 16 additions and 0 deletions
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15
drivers/infiniband/hw/ipath/ipath_keys.c
View File

@ -197,6 +197,21 @@ int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss,
size_t off;
int ret;
/*
* We use RKEY == zero for physical addresses
* (see ipath_get_dma_mr).
*/
if (rkey == 0) {
sge->mr = NULL;
sge->vaddr = phys_to_virt(vaddr);
sge->length = len;
sge->sge_length = len;
ss->sg_list = NULL;
ss->num_sge = 1;
ret = 1;
goto bail;
}
mr = rkt->table[(rkey >> (32 - ib_ipath_lkey_table_size))];
if (unlikely(mr == NULL || mr->lkey != rkey)) {
ret = 0;

1
drivers/infiniband/hw/ipath/ipath_verbs.c
View File

@ -627,6 +627,7 @@ static int ipath_query_device(struct ib_device *ibdev,
props->device_cap_flags = IB_DEVICE_BAD_PKEY_CNTR |
IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT |
IB_DEVICE_SYS_IMAGE_GUID;
props->page_size_cap = PAGE_SIZE;
props->vendor_id = ipath_layer_get_vendorid(dev->dd);
props->vendor_part_id = ipath_layer_get_deviceid(dev->dd);
props->hw_ver = ipath_layer_get_pcirev(dev->dd);