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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 14/16] net/e1000: Consolidate next index calculation code
Date: Wed,  6 Feb 2019 17:22:12 -0800	[thread overview]
Message-ID: <20190207012214.5060-15-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190207012214.5060-1-andrew.smirnov@gmail.com>

Consolidate next index calculation code into a helper function and
convert the code to make use of it.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 drivers/net/e1000/main.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/e1000/main.c b/drivers/net/e1000/main.c
index 90b6d6e43..01330f5a5 100644
--- a/drivers/net/e1000/main.c
+++ b/drivers/net/e1000/main.c
@@ -3198,6 +3198,11 @@ static int e1000_sw_init(struct eth_device *edev)
 	return E1000_SUCCESS;
 }
 
+static int e1000_bd_next_index(int index)
+{
+	return (index + 1) % 8;
+}
+
 static void e1000_fill_rx(struct e1000_hw *hw)
 {
 	volatile struct e1000_rx_desc *rd = &hw->rx_base[hw->rx_tail];
@@ -3205,7 +3210,7 @@ static void e1000_fill_rx(struct e1000_hw *hw)
 	int i;
 
 	hw->rx_last = hw->rx_tail;
-	hw->rx_tail = (hw->rx_tail + 1) % 8;
+	hw->rx_tail = e1000_bd_next_index(hw->rx_tail);
 
 	bla = (void *)rd;
 	for (i = 0; i < 4; i++)
@@ -3419,7 +3424,7 @@ static int e1000_transmit(struct eth_device *edev, void *txpacket, int length)
 	uint32_t stat;
 	int ret;
 
-	hw->tx_tail = (hw->tx_tail + 1) % 8;
+	hw->tx_tail = e1000_bd_next_index(hw->tx_tail);
 
 	writel(hw->txd_cmd | length, &txp->lower.data);
 	writel(0, &txp->upper.data);
-- 
2.20.1


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  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 ` Andrey Smirnov [this message]
2019-02-07  1:22 ` [PATCH 15/16] net/e1000: Improve RX buffer handling in e1000_fill_rx() Andrey Smirnov
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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