To support Multi Vports on Bare metal, increase the device config response
version. And, skip the register HW vport, and register filter steps, when
the Bare metal hostmode is set.
Signed-off-by: Haiyang Zhang <haiya...@microsoft.com>
---
v2:
Updated comments as suggested by ALOK TIWARI.
Fixed the version check.
---
drivers/net/ethernet/microsoft/mana/mana_en.c | 24 ++++++++++++-------
include/net/mana/mana.h | 4 +++-
2 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c
b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 2bac6be8f6a0..9c58d9e0bbb5 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c
@@ -921,7 +921,7 @@ static void mana_pf_deregister_filter(struct
mana_port_context *apc)
static int mana_query_device_cfg(struct mana_context *ac, u32 proto_major_ver,
u32 proto_minor_ver, u32 proto_micro_ver,
- u16 *max_num_vports)
+ u16 *max_num_vports, u8 *bm_hostmode)
{
struct gdma_context *gc = ac->gdma_dev->gdma_context;
struct mana_query_device_cfg_resp resp = {};
@@ -932,7 +932,7 @@ static int mana_query_device_cfg(struct mana_context *ac,
u32 proto_major_ver,
mana_gd_init_req_hdr(&req.hdr, MANA_QUERY_DEV_CONFIG,
sizeof(req), sizeof(resp));
- req.hdr.resp.msg_version = GDMA_MESSAGE_V2;
+ req.hdr.resp.msg_version = GDMA_MESSAGE_V3;
req.proto_major_ver = proto_major_ver;
req.proto_minor_ver = proto_minor_ver;
@@ -956,11 +956,16 @@ static int mana_query_device_cfg(struct mana_context *ac,
u32 proto_major_ver,
*max_num_vports = resp.max_num_vports;
- if (resp.hdr.response.msg_version == GDMA_MESSAGE_V2)
+ if (resp.hdr.response.msg_version >= GDMA_MESSAGE_V2)
gc->adapter_mtu = resp.adapter_mtu;
else
gc->adapter_mtu = ETH_FRAME_LEN;
+ if (resp.hdr.response.msg_version >= GDMA_MESSAGE_V3)
+ *bm_hostmode = resp.bm_hostmode;
+ else
+ *bm_hostmode = 0;
+
debugfs_create_u16("adapter-MTU", 0400, gc->mana_pci_debugfs,
&gc->adapter_mtu);
return 0;
@@ -2441,7 +2446,7 @@ static void mana_destroy_vport(struct mana_port_context
*apc)
mana_destroy_txq(apc);
mana_uncfg_vport(apc);
- if (gd->gdma_context->is_pf)
+ if (gd->gdma_context->is_pf && !apc->ac->bm_hostmode)
mana_pf_deregister_hw_vport(apc);
}
@@ -2453,7 +2458,7 @@ static int mana_create_vport(struct mana_port_context
*apc,
apc->default_rxobj = INVALID_MANA_HANDLE;
- if (gd->gdma_context->is_pf) {
+ if (gd->gdma_context->is_pf && !apc->ac->bm_hostmode) {
err = mana_pf_register_hw_vport(apc);
if (err)
return err;
@@ -2689,7 +2694,7 @@ int mana_alloc_queues(struct net_device *ndev)
goto destroy_vport;
}
- if (gd->gdma_context->is_pf) {
+ if (gd->gdma_context->is_pf && !apc->ac->bm_hostmode) {
err = mana_pf_register_filter(apc);
if (err)
goto destroy_vport;
@@ -2751,7 +2756,7 @@ static int mana_dealloc_queues(struct net_device *ndev)
mana_chn_setxdp(apc, NULL);
- if (gd->gdma_context->is_pf)
+ if (gd->gdma_context->is_pf && !apc->ac->bm_hostmode)
mana_pf_deregister_filter(apc);
/* No packet can be transmitted now since apc->port_is_up is false.
@@ -2998,6 +3003,7 @@ int mana_probe(struct gdma_dev *gd, bool resuming)
struct gdma_context *gc = gd->gdma_context;
struct mana_context *ac = gd->driver_data;
struct device *dev = gc->dev;
+ u8 bm_hostmode = 0;
u16 num_ports = 0;
int err;
int i;
@@ -3026,10 +3032,12 @@ int mana_probe(struct gdma_dev *gd, bool resuming)
}
err = mana_query_device_cfg(ac, MANA_MAJOR_VERSION, MANA_MINOR_VERSION,
- MANA_MICRO_VERSION, &num_ports);
+ MANA_MICRO_VERSION, &num_ports,
&bm_hostmode);
if (err)
goto out;
+ ac->bm_hostmode = bm_hostmode;
+
if (!resuming) {
ac->num_ports = num_ports;
} else {
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
index 0f78065de8fe..38238c1d00bf 100644
--- a/include/net/mana/mana.h
+++ b/include/net/mana/mana.h
@@ -408,6 +408,7 @@ struct mana_context {
struct gdma_dev *gdma_dev;
u16 num_ports;
+ u8 bm_hostmode;
struct mana_eq *eqs;
struct dentry *mana_eqs_debugfs;
@@ -557,7 +558,8 @@ struct mana_query_device_cfg_resp {
u64 pf_cap_flags4;
u16 max_num_vports;
- u16 reserved;
+ u8 bm_hostmode; /* response v3: Bare Metal Host Mode */
+ u8 reserved;
u32 max_num_eqs;
/* response v2: */
--
2.34.1
