From: Long Li <[email protected]>
This patchset implements a RDMA driver for Microsoft Azure Network
Adapter (MANA). In MANA, the RDMA device is modeled as an auxiliary device
to the Ethernet device.
The first 11 patches modify the MANA Ethernet driver to support RDMA driver.
The last patch implementes the RDMA driver.
The user-mode of the driver is being reviewed at:
https://github.com/linux-rdma/rdma-core/pull/1177
Ajay Sharma (3):
net: mana: Set the DMA device max segment size
net: mana: Define data structures for protection domain and memory
registration
net: mana: Define and process GDMA response code
GDMA_STATUS_MORE_ENTRIES
Long Li (9):
net: mana: Add support for auxiliary device
net: mana: Record the physical address for doorbell page region
net: mana: Handle vport sharing between devices
net: mana: Add functions for allocating doorbell page from GDMA
net: mana: Export Work Queue functions for use by RDMA driver
net: mana: Record port number in netdev
net: mana: Move header files to a common location
net: mana: Define max values for SGL entries
RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter
MAINTAINERS | 4 +
drivers/infiniband/Kconfig | 1 +
drivers/infiniband/hw/Makefile | 1 +
drivers/infiniband/hw/mana/Kconfig | 7 +
drivers/infiniband/hw/mana/Makefile | 4 +
drivers/infiniband/hw/mana/cq.c | 80 ++
drivers/infiniband/hw/mana/main.c | 686 ++++++++++++++++++
drivers/infiniband/hw/mana/mana_ib.h | 145 ++++
drivers/infiniband/hw/mana/mr.c | 133 ++++
drivers/infiniband/hw/mana/qp.c | 501 +++++++++++++
drivers/infiniband/hw/mana/wq.c | 114 +++
.../net/ethernet/microsoft/mana/gdma_main.c | 96 ++-
.../net/ethernet/microsoft/mana/hw_channel.c | 6 +-
.../net/ethernet/microsoft/mana/mana_bpf.c | 2 +-
drivers/net/ethernet/microsoft/mana/mana_en.c | 149 +++-
.../ethernet/microsoft/mana/mana_ethtool.c | 2 +-
.../net/ethernet/microsoft/mana/shm_channel.c | 2 +-
.../microsoft => include/net}/mana/gdma.h | 188 ++++-
.../net}/mana/hw_channel.h | 0
.../microsoft => include/net}/mana/mana.h | 26 +-
.../net}/mana/shm_channel.h | 0
include/uapi/rdma/ib_user_ioctl_verbs.h | 1 +
include/uapi/rdma/mana-abi.h | 66 ++
23 files changed, 2169 insertions(+), 45 deletions(-)
create mode 100644 drivers/infiniband/hw/mana/Kconfig
create mode 100644 drivers/infiniband/hw/mana/Makefile
create mode 100644 drivers/infiniband/hw/mana/cq.c
create mode 100644 drivers/infiniband/hw/mana/main.c
create mode 100644 drivers/infiniband/hw/mana/mana_ib.h
create mode 100644 drivers/infiniband/hw/mana/mr.c
create mode 100644 drivers/infiniband/hw/mana/qp.c
create mode 100644 drivers/infiniband/hw/mana/wq.c
rename {drivers/net/ethernet/microsoft => include/net}/mana/gdma.h (77%)
rename {drivers/net/ethernet/microsoft => include/net}/mana/hw_channel.h (100%)
rename {drivers/net/ethernet/microsoft => include/net}/mana/mana.h (94%)
rename {drivers/net/ethernet/microsoft => include/net}/mana/shm_channel.h (100%)
create mode 100644 include/uapi/rdma/mana-abi.h
--
2.17.1
From: Ajay Sharma <[email protected]>
When doing memory registration, the PF may respond with
GDMA_STATUS_MORE_ENTRIES to indicate a follow request is needed. This is
not an error and should be processed as expected.
Signed-off-by: Ajay Sharma <[email protected]>
Signed-off-by: Long Li <[email protected]>
---
drivers/net/ethernet/microsoft/mana/hw_channel.c | 2 +-
include/net/mana/gdma.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index e61cb3f6fbe1..24ecd193a185 100644
--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
+++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
@@ -820,7 +820,7 @@ int mana_hwc_send_request(struct hw_channel_context *hwc, u32 req_len,
goto out;
}
- if (ctx->status_code) {
+ if (ctx->status_code && ctx->status_code != GDMA_STATUS_MORE_ENTRIES) {
dev_err(hwc->dev, "HWC: Failed hw_channel req: 0x%x\n",
ctx->status_code);
err = -EPROTO;
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
index ef5de92dd98d..0485902d96c9 100644
--- a/include/net/mana/gdma.h
+++ b/include/net/mana/gdma.h
@@ -9,6 +9,8 @@
#include "shm_channel.h"
+#define GDMA_STATUS_MORE_ENTRIES 0x00000105
+
/* Structures labeled with "HW DATA" are exchanged with the hardware. All of
* them are naturally aligned and hence don't need __packed.
*/
--
2.17.1