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ixgbe: move num_vfs_macvlans allocation into separate function

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Move the code allocating memory for list of MAC addresses that
the VFs can use for MACVLAN into its own function.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Emil Tantilov 2017-01-20 14:11:45 -08:00 committed by Jeff Kirsher
parent 5b9d3cfb6b
commit 2bc0972988
1 changed files with 29 additions and 19 deletions
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48
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
View file

@ -46,11 +46,34 @@
#include "ixgbe_sriov.h"
#ifdef CONFIG_PCI_IOV
static inline void ixgbe_alloc_vf_macvlans(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
struct vf_macvlans *mv_list;
int num_vf_macvlans, i;
num_vf_macvlans = hw->mac.num_rar_entries -
(IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
if (!num_vf_macvlans)
return;
mv_list = kcalloc(num_vf_macvlans, sizeof(struct vf_macvlans),
GFP_KERNEL);
if (mv_list) {
/* Initialize list of VF macvlans */
INIT_LIST_HEAD(&adapter->vf_mvs.l);
for (i = 0; i < num_vf_macvlans; i++) {
mv_list[i].vf = -1;
mv_list[i].free = true;
list_add(&mv_list[i].l, &adapter->vf_mvs.l);
}
adapter->mv_list = mv_list;
}
}
static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
int num_vf_macvlans, i;
struct vf_macvlans *mv_list;
adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
e_info(probe, "SR-IOV enabled with %d VFs\n", adapter->num_vfs);
@ -61,27 +84,12 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
adapter->ring_feature[RING_F_VMDQ].limit = 1;
adapter->ring_feature[RING_F_VMDQ].offset = adapter->num_vfs;
num_vf_macvlans = hw->mac.num_rar_entries -
(IXGBE_MAX_PF_MACVLANS + 1 + adapter->num_vfs);
adapter->mv_list = mv_list = kcalloc(num_vf_macvlans,
sizeof(struct vf_macvlans),
GFP_KERNEL);
if (mv_list) {
/* Initialize list of VF macvlans */
INIT_LIST_HEAD(&adapter->vf_mvs.l);
for (i = 0; i < num_vf_macvlans; i++) {
mv_list->vf = -1;
mv_list->free = true;
list_add(&mv_list->l, &adapter->vf_mvs.l);
mv_list++;
}
}
/* Initialize default switching mode VEB */
IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
adapter->bridge_mode = BRIDGE_MODE_VEB;
ixgbe_alloc_vf_macvlans(adapter);
/* If call to enable VFs succeeded then allocate memory
* for per VF control structures.
*/
@ -89,6 +97,8 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
kcalloc(adapter->num_vfs,
sizeof(struct vf_data_storage), GFP_KERNEL);
if (adapter->vfinfo) {
int i;
/* limit trafffic classes based on VFs enabled */
if ((adapter->hw.mac.type == ixgbe_mac_82599EB) &&
(adapter->num_vfs < 16)) {