[PATCH v2 16/17] RDMA/qedr: Remove fbo and zbva from the MR

[Jason Gunthorpe]

zbva is always false, so fbo is never read.

A 'zero-based-virtual-address' is simply IOVA == 0, and the driver already
supports this.

Signed-off-by: Jason Gunthorpe <j...@nvidia.com>
---
 drivers/infiniband/hw/qedr/verbs.c         |  4 ----
 drivers/net/ethernet/qlogic/qed/qed_rdma.c | 12 ++----------
 include/linux/qed/qed_rdma_if.h            |  2 --
 3 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/infiniband/hw/qedr/verbs.c 
b/drivers/infiniband/hw/qedr/verbs.c
index 278b48443aedba..cca69b4ed354ea 100644
--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -2878,10 +2878,8 @@ struct ib_mr *qedr_reg_user_mr(struct ib_pd *ibpd, u64 
start, u64 len,
        mr->hw_mr.pbl_two_level = mr->info.pbl_info.two_layered;
        mr->hw_mr.pbl_page_size_log = ilog2(mr->info.pbl_info.pbl_size);
        mr->hw_mr.page_size_log = PAGE_SHIFT;
-       mr->hw_mr.fbo = ib_umem_offset(mr->umem);
        mr->hw_mr.length = len;
        mr->hw_mr.vaddr = usr_addr;
-       mr->hw_mr.zbva = false;
        mr->hw_mr.phy_mr = false;
        mr->hw_mr.dma_mr = false;
 
@@ -2974,10 +2972,8 @@ static struct qedr_mr *__qedr_alloc_mr(struct ib_pd 
*ibpd,
        mr->hw_mr.pbl_ptr = 0;
        mr->hw_mr.pbl_two_level = mr->info.pbl_info.two_layered;
        mr->hw_mr.pbl_page_size_log = ilog2(mr->info.pbl_info.pbl_size);
-       mr->hw_mr.fbo = 0;
        mr->hw_mr.length = 0;
        mr->hw_mr.vaddr = 0;
-       mr->hw_mr.zbva = false;
        mr->hw_mr.phy_mr = true;
        mr->hw_mr.dma_mr = false;
 
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c 
b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
index a4bcde522cdf9d..baa4c36608ea91 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
@@ -1520,7 +1520,7 @@ qed_rdma_register_tid(void *rdma_cxt,
                  params->pbl_two_level);
 
        SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_ZERO_BASED,
-                 params->zbva);
+                 false);
 
        SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_PHY_MR, params->phy_mr);
 
@@ -1582,15 +1582,7 @@ qed_rdma_register_tid(void *rdma_cxt,
        p_ramrod->pd = cpu_to_le16(params->pd);
        p_ramrod->length_hi = (u8)(params->length >> 32);
        p_ramrod->length_lo = DMA_LO_LE(params->length);
-       if (params->zbva) {
-               /* Lower 32 bits of the registered MR address.
-                * In case of zero based MR, will hold FBO
-                */
-               p_ramrod->va.hi = 0;
-               p_ramrod->va.lo = cpu_to_le32(params->fbo);
-       } else {
-               DMA_REGPAIR_LE(p_ramrod->va, params->vaddr);
-       }
+       DMA_REGPAIR_LE(p_ramrod->va, params->vaddr);
        DMA_REGPAIR_LE(p_ramrod->pbl_base, params->pbl_ptr);
 
        /* DIF */
diff --git a/include/linux/qed/qed_rdma_if.h b/include/linux/qed/qed_rdma_if.h
index f464d85e88a410..aeb242cefebfa8 100644
--- a/include/linux/qed/qed_rdma_if.h
+++ b/include/linux/qed/qed_rdma_if.h
@@ -242,10 +242,8 @@ struct qed_rdma_register_tid_in_params {
        bool pbl_two_level;
        u8 pbl_page_size_log;
        u8 page_size_log;
-       u32 fbo;
        u64 length;
        u64 vaddr;
-       bool zbva;
        bool phy_mr;
        bool dma_mr;
 
-- 
2.28.0