diff options
| author | Mintz, Yuval <Yuval.Mintz@cavium.com> | 2017-06-01 15:29:08 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-01 12:17:19 -0400 |
| commit | 09b6b14749523e3660b72be2ed91b3c0b852f58f (patch) | |
| tree | efb2753fdf3028ab8f55bdc20aa1e60880f9057c /drivers/net/ethernet/qlogic/qed/qed_int.c | |
| parent | 1ac72433c565c8db38fd1f9db80a73193369e5fc (diff) | |
qed: Provide auxiliary for getting free VF SB
IOV code is very intrusive in its manipulation of the status block
database.
Add a new auxiliary function to allow the PF to find an available unused
status block to configure for a specific VF's MSI-x vector.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_int.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_int.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.c b/drivers/net/ethernet/qlogic/qed/qed_int.c index a49484a8726c..96eee1ede8ab 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_int.c +++ b/drivers/net/ethernet/qlogic/qed/qed_int.c @@ -1412,6 +1412,26 @@ void qed_int_sb_setup(struct qed_hwfn *p_hwfn, sb_info->igu_sb_id, 0, 0); } +struct qed_igu_block *qed_get_igu_free_sb(struct qed_hwfn *p_hwfn, bool b_is_pf) +{ + struct qed_igu_block *p_block; + u16 igu_id; + + for (igu_id = 0; igu_id < QED_MAPPING_MEMORY_SIZE(p_hwfn->cdev); + igu_id++) { + p_block = &p_hwfn->hw_info.p_igu_info->entry[igu_id]; + + if (!(p_block->status & QED_IGU_STATUS_VALID) || + !(p_block->status & QED_IGU_STATUS_FREE)) + continue; + + if (!!(p_block->status & QED_IGU_STATUS_PF) == b_is_pf) + return p_block; + } + + return NULL; +} + static u16 qed_get_pf_igu_sb_id(struct qed_hwfn *p_hwfn, u16 vector_id) { struct qed_igu_block *p_block; |