diff options
author | Mintz, Yuval <Yuval.Mintz@cavium.com> | 2017-06-01 15:29:09 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-06-01 12:17:19 -0400 |
commit | 50a207147fceb64ad24c1e08e4a2a75535922e81 (patch) | |
tree | c06a33a03a9864786d541849f2cb99e143632036 /drivers/net/ethernet/qlogic/qed/qed_int.c | |
parent | 09b6b14749523e3660b72be2ed91b3c0b852f58f (diff) | |
download | linux-stable-50a207147fceb64ad24c1e08e4a2a75535922e81.tar.gz linux-stable-50a207147fceb64ad24c1e08e4a2a75535922e81.tar.bz2 linux-stable-50a207147fceb64ad24c1e08e4a2a75535922e81.zip |
qed: Hold a single array for SBs
A PF today holds 2 different arrays - one holding information
about the HW configuration and one holding information about
the SBs that are used by the protocol drivers.
These arrays aren't really connected - e.g., protocol driver
initializing a given SB would not mark the same SB as occupied
in the HW shadow array.
Move into a single array [at least for PFs] - hold the mapping
of the driver-protocol SBs on the HW entry which they configure.
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 | 46 |
1 files changed, 36 insertions, 10 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_int.c b/drivers/net/ethernet/qlogic/qed/qed_int.c index 96eee1ede8ab..c9cad2e25dd8 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_int.c +++ b/drivers/net/ethernet/qlogic/qed/qed_int.c @@ -1452,7 +1452,7 @@ static u16 qed_get_pf_igu_sb_id(struct qed_hwfn *p_hwfn, u16 vector_id) return QED_SB_INVALID_IDX; } -static u16 qed_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id) +u16 qed_get_igu_sb_id(struct qed_hwfn *p_hwfn, u16 sb_id) { u16 igu_sb_id; @@ -1485,8 +1485,19 @@ int qed_int_sb_init(struct qed_hwfn *p_hwfn, sb_info->igu_sb_id = qed_get_igu_sb_id(p_hwfn, sb_id); if (sb_id != QED_SP_SB_ID) { - p_hwfn->sbs_info[sb_id] = sb_info; - p_hwfn->num_sbs++; + if (IS_PF(p_hwfn->cdev)) { + struct qed_igu_info *p_info; + struct qed_igu_block *p_block; + + p_info = p_hwfn->hw_info.p_igu_info; + p_block = &p_info->entry[sb_info->igu_sb_id]; + + p_block->sb_info = sb_info; + p_block->status &= ~QED_IGU_STATUS_FREE; + p_info->usage.free_cnt--; + } else { + qed_vf_set_sb_info(p_hwfn, sb_id, sb_info); + } } sb_info->cdev = p_hwfn->cdev; @@ -1515,20 +1526,35 @@ int qed_int_sb_init(struct qed_hwfn *p_hwfn, int qed_int_sb_release(struct qed_hwfn *p_hwfn, struct qed_sb_info *sb_info, u16 sb_id) { - if (sb_id == QED_SP_SB_ID) { - DP_ERR(p_hwfn, "Do Not free sp sb using this function"); - return -EINVAL; - } + struct qed_igu_block *p_block; + struct qed_igu_info *p_info; + + if (!sb_info) + return 0; /* zero status block and ack counter */ sb_info->sb_ack = 0; memset(sb_info->sb_virt, 0, sizeof(*sb_info->sb_virt)); - if (p_hwfn->sbs_info[sb_id] != NULL) { - p_hwfn->sbs_info[sb_id] = NULL; - p_hwfn->num_sbs--; + if (IS_VF(p_hwfn->cdev)) { + qed_vf_set_sb_info(p_hwfn, sb_id, NULL); + return 0; } + p_info = p_hwfn->hw_info.p_igu_info; + p_block = &p_info->entry[sb_info->igu_sb_id]; + + /* Vector 0 is reserved to Default SB */ + if (!p_block->vector_number) { + DP_ERR(p_hwfn, "Do Not free sp sb using this function"); + return -EINVAL; + } + + /* Lose reference to client's SB info, and fix counters */ + p_block->sb_info = NULL; + p_block->status |= QED_IGU_STATUS_FREE; + p_info->usage.free_cnt++; + return 0; } |