diff options
| author |   Anjali Singhai Jain <anjali.singhai@intel.com> | 2015-07-10 19:36:08 -0400 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2015-08-26 15:09:54 -0700 |
| commit | b8262a6dfad8825e0b117fe5e3a1715a585bbd79 (patch) | |
| tree | c6d24153afa07ae2c29b7efd8efd5ca1ff1d5415 /drivers | |
| parent | i40e: Remove redundant and unneeded messages (diff) | |
| download | linux-dev-b8262a6dfad8825e0b117fe5e3a1715a585bbd79.tar.xz linux-dev-b8262a6dfad8825e0b117fe5e3a1715a585bbd79.zip | |
i40e/i40evf: add VIRTCHNL_VF_OFFLOAD flag
Add virtual channel offload capability to support RX polling mode in the
VF.
Change-ID: Ib643ae2a7506dfc75fc489fc207493fabefa4832
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
4 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_register.h b/drivers/net/ethernet/intel/i40e/i40e_register.h index acae6c744bc2..dc0402fe3370 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_register.h +++ b/drivers/net/ethernet/intel/i40e/i40e_register.h @@ -873,6 +873,13 @@ #define I40E_PFINT_CEQCTL_CAUSE_ENA_MASK I40E_MASK(0x1, I40E_PFINT_CEQCTL_CAUSE_ENA_SHIFT) #define I40E_PFINT_CEQCTL_INTEVENT_SHIFT 31 #define I40E_PFINT_CEQCTL_INTEVENT_MASK I40E_MASK(0x1, I40E_PFINT_CEQCTL_INTEVENT_SHIFT) +#define I40E_GLINT_CTL 0x0003F800 /* Reset: CORER */ +#define I40E_GLINT_CTL_DIS_AUTOMASK_PF0_SHIFT 0 +#define I40E_GLINT_CTL_DIS_AUTOMASK_PF0_MASK I40E_MASK(0x1, I40E_GLINT_CTL_DIS_AUTOMASK_PF0_SHIFT) +#define I40E_GLINT_CTL_DIS_AUTOMASK_VF0_SHIFT 1 +#define I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK I40E_MASK(0x1, I40E_GLINT_CTL_DIS_AUTOMASK_VF0_SHIFT) +#define I40E_GLINT_CTL_DIS_AUTOMASK_N_SHIFT 2 +#define I40E_GLINT_CTL_DIS_AUTOMASK_N_MASK I40E_MASK(0x1, I40E_GLINT_CTL_DIS_AUTOMASK_N_SHIFT) #define I40E_PFINT_DYN_CTL0 0x00038480 /* Reset: PFR */ #define I40E_PFINT_DYN_CTL0_INTENA_SHIFT 0 #define I40E_PFINT_DYN_CTL0_INTENA_MASK I40E_MASK(0x1, I40E_PFINT_DYN_CTL0_INTENA_SHIFT) diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl.h b/drivers/net/ethernet/intel/i40e/i40e_virtchnl.h index a7ab463b4474..0f8d4156f8b1 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl.h +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl.h @@ -152,6 +152,7 @@ struct i40e_virtchnl_vsi_resource { #define I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ 0x00000008 #define I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG 0x00000010 #define I40E_VIRTCHNL_VF_OFFLOAD_VLAN 0x00010000 +#define I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING 0x00020000 struct i40e_virtchnl_vf_resource { u16 num_vsis; diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index ca7a568f2809..d99c116032f3 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -335,6 +335,18 @@ static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, wr32(hw, reg_idx, reg); } + /* if the vf is running in polling mode and using interrupt zero, + * need to disable auto-mask on enabling zero interrupt for VFs. + */ + if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) && + (vector_id == 0)) { + reg = rd32(hw, I40E_GLINT_CTL); + if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { + reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; + wr32(hw, I40E_GLINT_CTL, reg); + } + } + irq_list_done: i40e_flush(hw); } diff --git a/drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h b/drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h index 1e89dea0d529..e6db20e8a395 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h +++ b/drivers/net/ethernet/intel/i40evf/i40e_virtchnl.h @@ -152,6 +152,7 @@ struct i40e_virtchnl_vsi_resource { #define I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ 0x00000008 #define I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG 0x00000010 #define I40E_VIRTCHNL_VF_OFFLOAD_VLAN 0x00010000 +#define I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING 0x00020000 struct i40e_virtchnl_vf_resource { u16 num_vsis; |