diff options
| author | Shannon Nelson <shannon.nelson@amd.com> | 2023-09-19 01:21:35 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-09-20 12:52:31 +0300 |
| commit | 40d835391b4f0af99cf49c71fab4d6ba8511b07f (patch) | |
| tree | fda7e53f0ddb6ee172da9b6a3d882fddc205a3ef /drivers/net/ethernet/pensando | |
| parent | 4d9d72200d4c69710e8371c872449c46bcab646f (diff) | |
| download | linux-40d835391b4f0af99cf49c71fab4d6ba8511b07f.tar.xz | |
ionic: add a check for max SGs and SKB frags
Add a check of the queue's max_sg_elems against the maximum frags we
expect to see per SKB and take the smaller of the two as our max for
the queues' descriptor buffer allocations.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/pensando')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_lif.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index 2c3e36b2dd7f..edc14730ce88 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -3831,6 +3831,18 @@ static void ionic_lif_queue_identify(struct ionic_lif *lif) qtype, qti->max_sg_elems); dev_dbg(ionic->dev, " qtype[%d].sg_desc_stride = %d\n", qtype, qti->sg_desc_stride); + + if (qti->max_sg_elems >= IONIC_MAX_FRAGS) { + qti->max_sg_elems = IONIC_MAX_FRAGS - 1; + dev_dbg(ionic->dev, "limiting qtype %d max_sg_elems to IONIC_MAX_FRAGS-1 %d\n", + qtype, qti->max_sg_elems); + } + + if (qti->max_sg_elems > MAX_SKB_FRAGS) { + qti->max_sg_elems = MAX_SKB_FRAGS; + dev_dbg(ionic->dev, "limiting qtype %d max_sg_elems to MAX_SKB_FRAGS %d\n", + qtype, qti->max_sg_elems); + } } } |