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| author | Sarveshwar Bandi <sarveshwarb@serverengines.com> | 2010-07-09 01:43:55 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-07-10 19:42:05 -0700 |
| commit | 344dbf1073d1cea179ed0831547cab2b7ea4ea27 (patch) | |
| tree | 0963847f46c5b4c7197dc1039081937ac0d934d2 /drivers/net/benet | |
| parent | 1ebed71ae23b0b3c68d2a03e8e1b421efb7f35b0 (diff) | |
| download | linux-344dbf1073d1cea179ed0831547cab2b7ea4ea27.tar.gz linux-344dbf1073d1cea179ed0831547cab2b7ea4ea27.tar.bz2 linux-344dbf1073d1cea179ed0831547cab2b7ea4ea27.zip | |
be2net: Patch to determine if function is VF while running in guest OS.
When driver is loaded in guest OS, the pci variables is_virtfn and is_physfn are
both set to 0. This change uses registers in controller to determine the same.
Signed-off-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/benet')
| -rw-r--r-- | drivers/net/benet/be.h | 12 | ||||
| -rw-r--r-- | drivers/net/benet/be_main.c | 1 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h index 1a0d2d037c4e..f17428caecf1 100644 --- a/drivers/net/benet/be.h +++ b/drivers/net/benet/be.h @@ -291,9 +291,10 @@ struct be_adapter { u32 vf_if_handle[BE_MAX_VF]; u32 vf_pmac_id[BE_MAX_VF]; u8 base_eq_id; + u8 is_virtfn; }; -#define be_physfn(adapter) (!adapter->pdev->is_virtfn) +#define be_physfn(adapter) (!adapter->is_virtfn) /* BladeEngine Generation numbers */ #define BE_GEN2 2 @@ -393,6 +394,15 @@ static inline u8 is_udp_pkt(struct sk_buff *skb) return val; } +static inline void be_check_sriov_fn_type(struct be_adapter *adapter) +{ + u8 data; + + pci_write_config_byte(adapter->pdev, 0xFE, 0xAA); + pci_read_config_byte(adapter->pdev, 0xFE, &data); + adapter->is_virtfn = (data != 0xAA); +} + extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped); extern void be_link_status_update(struct be_adapter *adapter, bool link_up); diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index b63687956f2b..e6ca92334d6d 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -1631,6 +1631,7 @@ static void be_sriov_enable(struct be_adapter *adapter) { #ifdef CONFIG_PCI_IOV int status; + be_check_sriov_fn_type(adapter); if (be_physfn(adapter) && num_vfs) { status = pci_enable_sriov(adapter->pdev, num_vfs); adapter->sriov_enabled = status ? false : true; |