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authorHauke Mehrtens <hauke@hauke-m.de>2019-03-25 15:29:06 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2019-05-03 22:41:38 +0200
commit1325e74e0c2f9ebdafe05b1492cec77a60059920 (patch)
treeaf21c4890a4ae5c08dc08ee7cabdc14a651f33ad /target/linux/generic/pending-3.18/077-10-bgmac-simplify-dma-init-cleanup.patch
parent675832de79ec14ddc1183a66d1084aff7a856289 (diff)
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kernel: Remove support for kernel 3.18
No target is using kernel 3.18 anymore, remove all the generic support for kernel 3.18. The removed packages are depending on kernel 3.18 only and are not used on any recent kernel. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/generic/pending-3.18/077-10-bgmac-simplify-dma-init-cleanup.patch')
-rw-r--r--target/linux/generic/pending-3.18/077-10-bgmac-simplify-dma-init-cleanup.patch184
1 files changed, 0 insertions, 184 deletions
diff --git a/target/linux/generic/pending-3.18/077-10-bgmac-simplify-dma-init-cleanup.patch b/target/linux/generic/pending-3.18/077-10-bgmac-simplify-dma-init-cleanup.patch
deleted file mode 100644
index a49bd5f5e7..0000000000
--- a/target/linux/generic/pending-3.18/077-10-bgmac-simplify-dma-init-cleanup.patch
+++ /dev/null
@@ -1,184 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Sun, 12 Apr 2015 23:19:32 +0200
-Subject: [PATCH] bgmac: simplify dma init/cleanup
-
-Instead of allocating buffers at device init time and initializing
-descriptors at device open, do both at the same time (during open).
-Free all buffers when closing the device.
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/ethernet/broadcom/bgmac.c
-+++ b/drivers/net/ethernet/broadcom/bgmac.c
-@@ -562,18 +562,26 @@ static void bgmac_dma_ring_desc_free(str
- ring->dma_base);
- }
-
--static void bgmac_dma_free(struct bgmac *bgmac)
-+static void bgmac_dma_cleanup(struct bgmac *bgmac)
- {
- int i;
-
-- for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
-+ for (i = 0; i < BGMAC_MAX_TX_RINGS; i++)
- bgmac_dma_tx_ring_free(bgmac, &bgmac->tx_ring[i]);
-- bgmac_dma_ring_desc_free(bgmac, &bgmac->tx_ring[i]);
-- }
-- for (i = 0; i < BGMAC_MAX_RX_RINGS; i++) {
-+
-+ for (i = 0; i < BGMAC_MAX_RX_RINGS; i++)
- bgmac_dma_rx_ring_free(bgmac, &bgmac->rx_ring[i]);
-+}
-+
-+static void bgmac_dma_free(struct bgmac *bgmac)
-+{
-+ int i;
-+
-+ for (i = 0; i < BGMAC_MAX_TX_RINGS; i++)
-+ bgmac_dma_ring_desc_free(bgmac, &bgmac->tx_ring[i]);
-+
-+ for (i = 0; i < BGMAC_MAX_RX_RINGS; i++)
- bgmac_dma_ring_desc_free(bgmac, &bgmac->rx_ring[i]);
-- }
- }
-
- static int bgmac_dma_alloc(struct bgmac *bgmac)
-@@ -621,8 +629,6 @@ static int bgmac_dma_alloc(struct bgmac
- }
-
- for (i = 0; i < BGMAC_MAX_RX_RINGS; i++) {
-- int j;
--
- ring = &bgmac->rx_ring[i];
- ring->num_slots = BGMAC_RX_RING_SLOTS;
- ring->mmio_base = ring_base[i];
-@@ -645,15 +651,6 @@ static int bgmac_dma_alloc(struct bgmac
- ring->index_base = lower_32_bits(ring->dma_base);
- else
- ring->index_base = 0;
--
-- /* Alloc RX slots */
-- for (j = 0; j < ring->num_slots; j++) {
-- err = bgmac_dma_rx_skb_for_slot(bgmac, &ring->slots[j]);
-- if (err) {
-- bgmac_err(bgmac, "Can't allocate skb for slot in RX ring\n");
-- goto err_dma_free;
-- }
-- }
- }
-
- return 0;
-@@ -663,10 +660,10 @@ err_dma_free:
- return -ENOMEM;
- }
-
--static void bgmac_dma_init(struct bgmac *bgmac)
-+static int bgmac_dma_init(struct bgmac *bgmac)
- {
- struct bgmac_dma_ring *ring;
-- int i;
-+ int i, err;
-
- for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
- ring = &bgmac->tx_ring[i];
-@@ -698,8 +695,13 @@ static void bgmac_dma_init(struct bgmac
- if (ring->unaligned)
- bgmac_dma_rx_enable(bgmac, ring);
-
-- for (j = 0; j < ring->num_slots; j++)
-+ for (j = 0; j < ring->num_slots; j++) {
-+ err = bgmac_dma_rx_skb_for_slot(bgmac, &ring->slots[j]);
-+ if (err)
-+ goto error;
-+
- bgmac_dma_rx_setup_desc(bgmac, ring, j);
-+ }
-
- bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_INDEX,
- ring->index_base +
-@@ -708,6 +710,12 @@ static void bgmac_dma_init(struct bgmac
- ring->start = 0;
- ring->end = 0;
- }
-+
-+ return 0;
-+
-+error:
-+ bgmac_dma_cleanup(bgmac);
-+ return err;
- }
-
- /**************************************************
-@@ -1183,11 +1191,8 @@ static void bgmac_enable(struct bgmac *b
- }
-
- /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
--static void bgmac_chip_init(struct bgmac *bgmac, bool full_init)
-+static void bgmac_chip_init(struct bgmac *bgmac)
- {
-- struct bgmac_dma_ring *ring;
-- int i;
--
- /* 1 interrupt per received frame */
- bgmac_write(bgmac, BGMAC_INT_RECV_LAZY, 1 << BGMAC_IRL_FC_SHIFT);
-
-@@ -1205,16 +1210,7 @@ static void bgmac_chip_init(struct bgmac
-
- bgmac_write(bgmac, BGMAC_RXMAX_LENGTH, 32 + ETHER_MAX_LEN);
-
-- if (full_init) {
-- bgmac_dma_init(bgmac);
-- if (1) /* FIXME: is there any case we don't want IRQs? */
-- bgmac_chip_intrs_on(bgmac);
-- } else {
-- for (i = 0; i < BGMAC_MAX_RX_RINGS; i++) {
-- ring = &bgmac->rx_ring[i];
-- bgmac_dma_rx_enable(bgmac, ring);
-- }
-- }
-+ bgmac_chip_intrs_on(bgmac);
-
- bgmac_enable(bgmac);
- }
-@@ -1274,23 +1270,27 @@ static int bgmac_open(struct net_device
- int err = 0;
-
- bgmac_chip_reset(bgmac);
-+
-+ err = bgmac_dma_init(bgmac);
-+ if (err)
-+ return err;
-+
- /* Specs say about reclaiming rings here, but we do that in DMA init */
-- bgmac_chip_init(bgmac, true);
-+ bgmac_chip_init(bgmac);
-
- err = request_irq(bgmac->core->irq, bgmac_interrupt, IRQF_SHARED,
- KBUILD_MODNAME, net_dev);
- if (err < 0) {
- bgmac_err(bgmac, "IRQ request error: %d!\n", err);
-- goto err_out;
-+ bgmac_dma_cleanup(bgmac);
-+ return err;
- }
- napi_enable(&bgmac->napi);
-
- phy_start(bgmac->phy_dev);
-
- netif_carrier_on(net_dev);
--
--err_out:
-- return err;
-+ return 0;
- }
-
- static int bgmac_stop(struct net_device *net_dev)
-@@ -1306,6 +1306,7 @@ static int bgmac_stop(struct net_device
- free_irq(bgmac->core->irq, net_dev);
-
- bgmac_chip_reset(bgmac);
-+ bgmac_dma_cleanup(bgmac);
-
- return 0;
- }