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    Subject[PATCH 05/12] octeontx2-af: FLR handler for exact match table.
    Date
    FLR handler should remove/free all exact match table resources
    corresponding to each interface.

    Change-Id: I84a816845cffbaaccfba40b9c0b1829f64e9c5a5
    Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
    ---
    .../net/ethernet/marvell/octeontx2/af/rvu.c | 4 +++
    .../marvell/octeontx2/af/rvu_npc_hash.c | 27 +++++++++++++++++++
    .../marvell/octeontx2/af/rvu_npc_hash.h | 1 +
    3 files changed, 32 insertions(+)

    diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
    index 1b6e9efbb8ec..9eedbf389ee0 100644
    --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
    +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
    @@ -2555,6 +2555,10 @@ static void rvu_blklf_teardown(struct rvu *rvu, u16 pcifunc, u8 blkaddr)

    static void __rvu_flr_handler(struct rvu *rvu, u16 pcifunc)
    {
    +
    + if (rvu_npc_exact_has_match_table(rvu))
    + rvu_npc_exact_reset(rvu, pcifunc);
    +
    mutex_lock(&rvu->flr_lock);
    /* Reset order should reflect inter-block dependencies:
    * 1. Reset any packet/work sources (NIX, CPT, TIM)
    diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c
    index 4a226deedd49..bf80ce3db446 100644
    --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c
    +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c
    @@ -1170,6 +1170,33 @@ void rvu_npc_exact_disable_feature(struct rvu *rvu)
    rvu->hw->cap.npc_exact_match_enabled = false;
    }

    +/**
    + * rvu_npc_exact_reset - Delete and free all entry which match pcifunc.
    + * @rvu: resource virtualization unit.
    + * @pcifunc: PCI func to match.
    + */
    +void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc)
    +{
    + struct npc_exact_table *table = rvu->hw->table;
    + struct npc_exact_table_entry *tmp, *iter;
    + u32 seq_id;
    +
    + mutex_lock(&table->lock);
    + list_for_each_entry_safe(iter, tmp, &table->lhead_gbl, glist) {
    + if (pcifunc != iter->pcifunc)
    + continue;
    +
    + seq_id = iter->seq_id;
    + dev_dbg(rvu->dev, "%s: resetting pcifun=%d seq_id=%u\n", __func__,
    + pcifunc, seq_id);
    +
    + mutex_unlock(&table->lock);
    + rvu_npc_exact_del_table_entry_by_id(rvu, seq_id);
    + mutex_lock(&table->lock);
    + }
    + mutex_unlock(&table->lock);
    +}
    +
    /**
    * rvu_npc_exact_init - initialize exact match table
    * @rvu: resource virtualization unit.
    diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h
    index d832af03d4a9..87e7d0edb6d8 100644
    --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h
    +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h
    @@ -187,5 +187,6 @@ int rvu_npc_exact_init(struct rvu *rvu);

    bool rvu_npc_exact_can_disable_feature(struct rvu *rvu);
    void rvu_npc_exact_disable_feature(struct rvu *rvu);
    +void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);

    #endif /* RVU_NPC_HASH_H */
    --
    2.25.1
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