From: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
To: davem@davemloft.net, netdev@vger.kernel.org, mugunthanvnm@ti.com,
grygorii.strashko@ti.com
Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
nsekhar@ti.com, Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Subject: [PATCH v2 3/4] net: ethernet: ti: davinci_cpdma: move cpdma channel struct macroses to internals
Date: Mon, 15 Aug 2016 18:16:20 +0300 [thread overview]
Message-ID: <1471274181-780-4-git-send-email-ivan.khoronzhuk@linaro.org> (raw)
In-Reply-To: <1471274181-780-1-git-send-email-ivan.khoronzhuk@linaro.org>
Keep the driver internals in C file. Currently it's not required for
drivers to know rx or tx a channel is, except create function.
So correct "channel create" function, and use all channel struct
macroses only for internal use.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
---
drivers/net/ethernet/ti/cpsw.c | 7 ++-----
drivers/net/ethernet/ti/davinci_cpdma.c | 13 +++++++++++--
drivers/net/ethernet/ti/davinci_cpdma.h | 9 +--------
drivers/net/ethernet/ti/davinci_emac.c | 8 ++++----
4 files changed, 18 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index a95f9b2..d084c29 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2536,11 +2536,8 @@ static int cpsw_probe(struct platform_device *pdev)
goto clean_runtime_disable_ret;
}
- cpsw->txch[0] = cpdma_chan_create(cpsw->dma, tx_chan_num(0),
- cpsw_tx_handler);
- cpsw->rxch[0] = cpdma_chan_create(cpsw->dma, rx_chan_num(0),
- cpsw_rx_handler);
-
+ cpsw->txch[0] = cpdma_chan_create(cpsw->dma, 0, cpsw_tx_handler, 0);
+ cpsw->rxch[0] = cpdma_chan_create(cpsw->dma, 0, cpsw_rx_handler, 1);
if (WARN_ON(!cpsw->rxch[0] || !cpsw->txch[0])) {
dev_err(priv->dev, "error initializing dma channels\n");
ret = -ENOMEM;
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c
index ae286b0..53fd63e 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.c
+++ b/drivers/net/ethernet/ti/davinci_cpdma.c
@@ -124,6 +124,13 @@ struct cpdma_chan {
int int_set, int_clear, td;
};
+#define tx_chan_num(chan) (chan)
+#define rx_chan_num(chan) ((chan) + CPDMA_MAX_CHANNELS)
+#define is_rx_chan(chan) ((chan)->chan_num >= CPDMA_MAX_CHANNELS)
+#define is_tx_chan(chan) (!is_rx_chan(chan))
+#define __chan_linear(chan_num) ((chan_num) & (CPDMA_MAX_CHANNELS - 1))
+#define chan_linear(chan) __chan_linear((chan)->chan_num)
+
/* The following make access to common cpdma_ctlr params more readable */
#define dmaregs params.dmaregs
#define num_chan params.num_chan
@@ -440,12 +447,14 @@ static void cpdma_chan_split_pool(struct cpdma_ctlr *ctlr)
}
struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,
- cpdma_handler_fn handler)
+ cpdma_handler_fn handler, int rx_type)
{
+ int offset = chan_num * 4;
struct cpdma_chan *chan;
- int offset = (chan_num % CPDMA_MAX_CHANNELS) * 4;
unsigned long flags;
+ chan_num = rx_type ? rx_chan_num(chan_num) : tx_chan_num(chan_num);
+
if (__chan_linear(chan_num) >= ctlr->num_chan)
return NULL;
diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h
index 070f1d0..a07b22b 100644
--- a/drivers/net/ethernet/ti/davinci_cpdma.h
+++ b/drivers/net/ethernet/ti/davinci_cpdma.h
@@ -17,13 +17,6 @@
#define CPDMA_MAX_CHANNELS BITS_PER_LONG
-#define tx_chan_num(chan) (chan)
-#define rx_chan_num(chan) ((chan) + CPDMA_MAX_CHANNELS)
-#define is_rx_chan(chan) ((chan)->chan_num >= CPDMA_MAX_CHANNELS)
-#define is_tx_chan(chan) (!is_rx_chan(chan))
-#define __chan_linear(chan_num) ((chan_num) & (CPDMA_MAX_CHANNELS - 1))
-#define chan_linear(chan) __chan_linear((chan)->chan_num)
-
#define CPDMA_RX_SOURCE_PORT(__status__) ((__status__ >> 16) & 0x7)
#define CPDMA_EOI_RX_THRESH 0x0
@@ -79,7 +72,7 @@ int cpdma_ctlr_start(struct cpdma_ctlr *ctlr);
int cpdma_ctlr_stop(struct cpdma_ctlr *ctlr);
struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num,
- cpdma_handler_fn handler);
+ cpdma_handler_fn handler, int rx_type);
int cpdma_chan_get_rx_buf_num(struct cpdma_chan *chan);
int cpdma_chan_destroy(struct cpdma_chan *chan);
int cpdma_chan_start(struct cpdma_chan *chan);
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 2d6fc9a..2fd94a5 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1870,10 +1870,10 @@ static int davinci_emac_probe(struct platform_device *pdev)
goto no_pdata;
}
- priv->txchan = cpdma_chan_create(priv->dma, tx_chan_num(EMAC_DEF_TX_CH),
- emac_tx_handler);
- priv->rxchan = cpdma_chan_create(priv->dma, rx_chan_num(EMAC_DEF_RX_CH),
- emac_rx_handler);
+ priv->txchan = cpdma_chan_create(priv->dma, EMAC_DEF_TX_CH,
+ emac_tx_handler, 0);
+ priv->rxchan = cpdma_chan_create(priv->dma, EMAC_DEF_RX_CH,
+ emac_rx_handler, 1);
if (WARN_ON(!priv->txchan || !priv->rxchan)) {
rc = -ENOMEM;
goto no_cpdma_chan;
--
1.9.1
next prev parent reply other threads:[~2016-08-15 15:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-15 15:16 [PATCH v2 0/4] net: ethernet: ti: cpsw: add cpdma multi-queue support Ivan Khoronzhuk
2016-08-15 15:16 ` [PATCH v2 1/4] net: ethernet: ti: davinci_cpdma: split descs num between all channels Ivan Khoronzhuk
2016-08-15 16:05 ` Yuval Mintz
2016-08-15 16:30 ` Ivan Khoronzhuk
2016-08-15 15:16 ` [PATCH v2 2/4] net: ethernet: ti: cpsw: add multi queue support Ivan Khoronzhuk
2016-08-15 15:16 ` Ivan Khoronzhuk [this message]
2016-08-15 15:16 ` [PATCH v2 4/4] net: ethernet: ti: cpsw: add ethtool channels support Ivan Khoronzhuk
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