net: atlantic: macsec: make the prepare phase a noop

In preparation for removing the MACsec h/w offloading preparation phase,
make it a no-op in the Atlantic driver.

Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_macsec.c b/drivers/net/ethernet/aquantia/atlantic/aq_macsec.c
index 02058fe79f52b15fb0d45552b2861affa3513f1c..9dbd348ac714ff81fba19d8b98ec054fd5394fce 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_macsec.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_macsec.c
@@ -452,6 +452,9 @@ static int aq_mdo_add_secy(struct macsec_context *ctx)
        u32 txsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        if (secy->xpn)
                return -EOPNOTSUPP;
 
@@ -466,9 +469,6 @@ static int aq_mdo_add_secy(struct macsec_context *ctx)
        if (txsc_idx == AQ_MACSEC_MAX_SC)
                return -ENOSPC;
 
-       if (ctx->prepare)
-               return 0;
-
        cfg->sc_sa = sc_sa;
        cfg->aq_txsc[txsc_idx].hw_sc_idx = aq_to_hw_sc_idx(txsc_idx, sc_sa);
        cfg->aq_txsc[txsc_idx].sw_secy = secy;
@@ -488,13 +488,13 @@ static int aq_mdo_upd_secy(struct macsec_context *ctx)
        int txsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        txsc_idx = aq_get_txsc_idx_from_secy(nic->macsec_cfg, secy);
        if (txsc_idx < 0)
                return -ENOENT;
 
-       if (ctx->prepare)
-               return 0;
-
        if (netif_carrier_ok(nic->ndev) && netif_running(secy->netdev))
                ret = aq_set_txsc(nic, txsc_idx);
 
@@ -597,13 +597,13 @@ static int aq_mdo_add_txsa(struct macsec_context *ctx)
        int txsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        txsc_idx = aq_get_txsc_idx_from_secy(cfg, secy);
        if (txsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_txsc = &cfg->aq_txsc[txsc_idx];
        set_bit(ctx->sa.assoc_num, &aq_txsc->tx_sa_idx_busy);
 
@@ -627,13 +627,13 @@ static int aq_mdo_upd_txsa(struct macsec_context *ctx)
        int txsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        txsc_idx = aq_get_txsc_idx_from_secy(cfg, secy);
        if (txsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_txsc = &cfg->aq_txsc[txsc_idx];
        if (netif_carrier_ok(nic->ndev) && netif_running(secy->netdev))
                ret = aq_update_txsa(nic, aq_txsc->hw_sc_idx, secy,
@@ -677,13 +677,13 @@ static int aq_mdo_del_txsa(struct macsec_context *ctx)
        int txsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        txsc_idx = aq_get_txsc_idx_from_secy(cfg, ctx->secy);
        if (txsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        ret = aq_clear_txsa(nic, &cfg->aq_txsc[txsc_idx], ctx->sa.assoc_num,
                            AQ_CLEAR_ALL);
 
@@ -773,6 +773,9 @@ static int aq_mdo_add_rxsc(struct macsec_context *ctx)
        u32 rxsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        if (hweight32(cfg->rxsc_idx_busy) >= rxsc_idx_max)
                return -ENOSPC;
 
@@ -780,9 +783,6 @@ static int aq_mdo_add_rxsc(struct macsec_context *ctx)
        if (rxsc_idx >= rxsc_idx_max)
                return -ENOSPC;
 
-       if (ctx->prepare)
-               return 0;
-
        cfg->aq_rxsc[rxsc_idx].hw_sc_idx = aq_to_hw_sc_idx(rxsc_idx,
                                                           cfg->sc_sa);
        cfg->aq_rxsc[rxsc_idx].sw_secy = ctx->secy;
@@ -805,13 +805,13 @@ static int aq_mdo_upd_rxsc(struct macsec_context *ctx)
        int rxsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(nic->macsec_cfg, ctx->rx_sc);
        if (rxsc_idx < 0)
                return -ENOENT;
 
-       if (ctx->prepare)
-               return 0;
-
        if (netif_carrier_ok(nic->ndev) && netif_running(ctx->secy->netdev))
                ret = aq_set_rxsc(nic, rxsc_idx);
 
@@ -872,13 +872,13 @@ static int aq_mdo_del_rxsc(struct macsec_context *ctx)
        int rxsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(nic->macsec_cfg, ctx->rx_sc);
        if (rxsc_idx < 0)
                return -ENOENT;
 
-       if (ctx->prepare)
-               return 0;
-
        if (netif_carrier_ok(nic->ndev))
                clear_type = AQ_CLEAR_ALL;
 
@@ -944,13 +944,13 @@ static int aq_mdo_add_rxsa(struct macsec_context *ctx)
        int rxsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(nic->macsec_cfg, rx_sc);
        if (rxsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_rxsc = &nic->macsec_cfg->aq_rxsc[rxsc_idx];
        set_bit(ctx->sa.assoc_num, &aq_rxsc->rx_sa_idx_busy);
 
@@ -974,13 +974,13 @@ static int aq_mdo_upd_rxsa(struct macsec_context *ctx)
        int rxsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(cfg, rx_sc);
        if (rxsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        if (netif_carrier_ok(nic->ndev) && netif_running(secy->netdev))
                ret = aq_update_rxsa(nic, cfg->aq_rxsc[rxsc_idx].hw_sc_idx,
                                     secy, ctx->sa.rx_sa, NULL,
@@ -1025,13 +1025,13 @@ static int aq_mdo_del_rxsa(struct macsec_context *ctx)
        int rxsc_idx;
        int ret = 0;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(cfg, rx_sc);
        if (rxsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        ret = aq_clear_rxsa(nic, &cfg->aq_rxsc[rxsc_idx], ctx->sa.assoc_num,
                            AQ_CLEAR_ALL);
 
@@ -1069,13 +1069,13 @@ static int aq_mdo_get_tx_sc_stats(struct macsec_context *ctx)
        struct aq_macsec_txsc *aq_txsc;
        int txsc_idx;
 
+       if (ctx->prepare)
+               return 0;
+
        txsc_idx = aq_get_txsc_idx_from_secy(nic->macsec_cfg, ctx->secy);
        if (txsc_idx < 0)
                return -ENOENT;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_txsc = &nic->macsec_cfg->aq_txsc[txsc_idx];
        stats = &aq_txsc->stats;
        aq_get_txsc_stats(hw, aq_txsc->hw_sc_idx, stats);
@@ -1102,13 +1102,13 @@ static int aq_mdo_get_tx_sa_stats(struct macsec_context *ctx)
        u32 next_pn;
        int ret;
 
+       if (ctx->prepare)
+               return 0;
+
        txsc_idx = aq_get_txsc_idx_from_secy(cfg, ctx->secy);
        if (txsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_txsc = &cfg->aq_txsc[txsc_idx];
        sa_idx = aq_txsc->hw_sc_idx | ctx->sa.assoc_num;
        stats = &aq_txsc->tx_sa_stats[ctx->sa.assoc_num];
@@ -1143,13 +1143,13 @@ static int aq_mdo_get_rx_sc_stats(struct macsec_context *ctx)
        int ret = 0;
        int i;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(cfg, ctx->rx_sc);
        if (rxsc_idx < 0)
                return -ENOENT;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_rxsc = &cfg->aq_rxsc[rxsc_idx];
        for (i = 0; i < MACSEC_NUM_AN; i++) {
                if (!test_bit(i, &aq_rxsc->rx_sa_idx_busy))
@@ -1192,13 +1192,13 @@ static int aq_mdo_get_rx_sa_stats(struct macsec_context *ctx)
        u32 next_pn;
        int ret;
 
+       if (ctx->prepare)
+               return 0;
+
        rxsc_idx = aq_get_rxsc_idx_from_rxsc(cfg, ctx->rx_sc);
        if (rxsc_idx < 0)
                return -EINVAL;
 
-       if (ctx->prepare)
-               return 0;
-
        aq_rxsc = &cfg->aq_rxsc[rxsc_idx];
        stats = &aq_rxsc->rx_sa_stats[ctx->sa.assoc_num];
        sa_idx = aq_rxsc->hw_sc_idx | ctx->sa.assoc_num;