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authorJose Abreu <Jose.Abreu@synopsys.com>2020-01-13 19:24:09 +0300
committerJakub Kicinski <kuba@kernel.org>2020-01-14 05:31:48 +0300
commit579a25a854d482bc9d0f9ab0e07ba32fb66bd9e3 (patch)
tree43a4cc5c23706f6f08c1c4e6d3b1abb041bd2c28 /drivers/net/ethernet/stmicro/stmmac/stmmac.h
parentab9837b5ed51f128f898a93d873ba7198abc1140 (diff)
downloadlinux-579a25a854d482bc9d0f9ab0e07ba32fb66bd9e3.tar.xz
net: stmmac: Initial support for TBS
Adds the initial hooks for TBS support. This needs a 32 byte descriptor in order for it to work with current HW. Adds all the logic for Enhanced Descriptors in main core but no HW related logic for now. Changes from v2: - Use bitfield for TBS status / support (Jakub) - Remove unneeded cache alignment (Jakub) - Fix checkpatch issues Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac.h')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index f98c5eefb382..9c02fc754bf1 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -39,13 +39,18 @@ struct stmmac_tx_info {
bool is_jumbo;
};
+#define STMMAC_TBS_AVAIL BIT(0)
+#define STMMAC_TBS_EN BIT(1)
+
/* Frequently used values are kept adjacent for cache effect */
struct stmmac_tx_queue {
u32 tx_count_frames;
+ int tbs;
struct timer_list txtimer;
u32 queue_index;
struct stmmac_priv *priv_data;
struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp;
+ struct dma_edesc *dma_entx;
struct dma_desc *dma_tx;
struct sk_buff **tx_skbuff;
struct stmmac_tx_info *tx_skbuff_dma;