From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 15/16] net/e1000: Improve RX buffer handling in e1000_fill_rx()
Date: Wed, 6 Feb 2019 17:22:13 -0800 [thread overview]
Message-ID: <20190207012214.5060-16-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190207012214.5060-1-andrew.smirnov@gmail.com>
Drop explicit "volatile" specifier for struct e1000_rx_desc, "bla"
variable as well as explicit endiannes fix, by using little endian IO
accessors (readl, writel, etc.)
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
drivers/net/e1000/main.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/net/e1000/main.c b/drivers/net/e1000/main.c
index 01330f5a5..c6b6906ce 100644
--- a/drivers/net/e1000/main.c
+++ b/drivers/net/e1000/main.c
@@ -3205,18 +3205,17 @@ static int e1000_bd_next_index(int index)
static void e1000_fill_rx(struct e1000_hw *hw)
{
- volatile struct e1000_rx_desc *rd = &hw->rx_base[hw->rx_tail];
- volatile u32 *bla;
- int i;
+ struct e1000_rx_desc *rd = &hw->rx_base[hw->rx_tail];
hw->rx_last = hw->rx_tail;
hw->rx_tail = e1000_bd_next_index(hw->rx_tail);
- bla = (void *)rd;
- for (i = 0; i < 4; i++)
- *bla++ = 0;
-
- rd->buffer_addr = cpu_to_le64(hw->packet_dma);
+ writeq(hw->packet_dma, &rd->buffer_addr);
+ writew(0, &rd->length);
+ writew(0, &rd->csum);
+ writeb(0, &rd->status);
+ writeb(0, &rd->errors);
+ writew(0, &rd->special);
e1000_write_reg(hw, E1000_RDT, hw->rx_tail);
}
--
2.20.1
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next prev parent reply other threads:[~2019-02-07 1:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-07 1:21 [PATCH 00/16] E1000 driver AArch64 related fixes Andrey Smirnov
2019-02-07 1:21 ` [PATCH 01/16] ARM: Select HAS_DMA for AArch64 Andrey Smirnov
2019-02-07 1:22 ` [PATCH 02/16] include: Import io-64-nonatomic-*.h from Linux Andrey Smirnov
2019-02-07 1:22 ` [PATCH 03/16] net/e1000: Don't use coherent memory for Rx buffer Andrey Smirnov
2019-02-07 1:22 ` [PATCH 04/16] net/e1000: Convert e1000_transmit to use dma_map_single() Andrey Smirnov
2019-02-07 1:22 ` [PATCH 05/16] net/e1000: Fix debug print warning Andrey Smirnov
2019-02-07 1:22 ` [PATCH 06/16] net/e1000: Fix incorrect "Rx ready" check Andrey Smirnov
2019-02-07 1:22 ` [PATCH 07/16] net/e1000: Get rid of pointer arithmetic in e1000_poll Andrey Smirnov
2019-02-07 1:22 ` [PATCH 08/16] net/e1000: Improve Rx descriptor handling in e1000_poll() Andrey Smirnov
2019-02-07 1:22 ` [PATCH 09/16] net/e1000: Remove pointer arithmetic in e1000_transmit() Andrey Smirnov
2019-02-07 1:22 ` [PATCH 10/16] net/e1000: Improve Tx descriptor handling in e1000_transmit Andrey Smirnov
2019-02-07 1:22 ` [PATCH 11/16] net/e1000: Make use of readl_poll_timeout() in e1000_transmit() Andrey Smirnov
2019-02-07 1:22 ` [PATCH 12/16] net/e1000: Rename fill_rx() to e1000_fill_rx() Andrey Smirnov
2019-02-07 1:22 ` [PATCH 13/16] net/e1000: Remove pointer arithmetic from e1000_fill_rx() Andrey Smirnov
2019-02-07 1:22 ` [PATCH 14/16] net/e1000: Consolidate next index calculation code Andrey Smirnov
2019-02-07 1:22 ` Andrey Smirnov [this message]
2019-02-07 1:22 ` [PATCH 16/16] net/e1000: Do not hardcode TDBAH and RDBAH to 0 Andrey Smirnov
2019-02-11 7:48 ` [PATCH 00/16] E1000 driver AArch64 related fixes Sascha Hauer
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