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bnxt_en: Do not modify max_stat_ctxs after RDMA driver requests/frees stat_ctxs

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Calling bnxt_set_max_func_stat_ctxs() to modify max stat_ctxs requested
or freed by the RDMA driver is wrong. After introducing reservation of
resources recently, the driver has to keep track of all stat_ctxs
including the ones used by the RDMA driver.  This will provide a better
foundation for accurate accounting of the stat_ctxs.

Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasundhara Volam 2018-12-16 18:46:22 -05:00 committed by David S. Miller
parent c027c6b4e9
commit f4e896142d
3 changed files with 2 additions and 15 deletions
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5
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -7035,11 +7035,6 @@ unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp)
return bp->hw_resc.max_stat_ctxs;
}
void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max)
{
bp->hw_resc.max_stat_ctxs = max;
}
unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp)
{
return bp->hw_resc.max_cp_rings;

1
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -1687,7 +1687,6 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id);
int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings);
int bnxt_hwrm_set_coal(struct bnxt *);
unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp);
void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max);
unsigned int bnxt_get_avail_stat_ctxs_for_en(struct bnxt *bp);
unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp);
unsigned int bnxt_get_avail_cp_rings_for_en(struct bnxt *bp);

11
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
View File

@ -50,8 +50,6 @@ static int bnxt_register_dev(struct bnxt_en_dev *edev, int ulp_id,
if (max_stat_ctxs <= BNXT_MIN_ROCE_STAT_CTXS ||
bp->cp_nr_rings == max_stat_ctxs)
return -ENOMEM;
bnxt_set_max_func_stat_ctxs(bp, max_stat_ctxs -
BNXT_MIN_ROCE_STAT_CTXS);
}
atomic_set(&ulp->ref_count, 0);
@ -82,14 +80,9 @@ static int bnxt_unregister_dev(struct bnxt_en_dev *edev, int ulp_id)
netdev_err(bp->dev, "ulp id %d not registered\n", ulp_id);
return -EINVAL;
}
if (ulp_id == BNXT_ROCE_ULP) {
unsigned int max_stat_ctxs;
if (ulp_id == BNXT_ROCE_ULP && ulp->msix_requested)
edev->en_ops->bnxt_free_msix(edev, ulp_id);
max_stat_ctxs = bnxt_get_max_func_stat_ctxs(bp);
bnxt_set_max_func_stat_ctxs(bp, max_stat_ctxs + 1);
if (ulp->msix_requested)
edev->en_ops->bnxt_free_msix(edev, ulp_id);
}
if (ulp->max_async_event_id)
bnxt_hwrm_func_rgtr_async_events(bp, NULL, 0);