staging: slicoss: introduce register accessors that use register offsets

Introduce accessor functions that read and write registers by using a
register offset.
This is in preparation to replace the register addressing by means of the
slic_regs struct with an addressing by means of offsets.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index cc0afee..08d9f5b 100644 (file)
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -418,6 +418,7 @@ struct adapter {
        dma_addr_t          phys_shmem;
        u32             isrcopy;
        __iomem struct slic_regs       *slic_regs;
+       void __iomem *regs;
        unsigned char               state;
        unsigned char               linkstate;
        unsigned char               linkspeed;
@@ -487,6 +488,29 @@ struct adapter {
        struct slicnet_stats     slic_stats;
 };
 
+static inline u32 slic_read32(struct adapter *adapter, unsigned int reg)
+{
+       return ioread32(adapter->regs + reg);
+}
+
+static inline void slic_write32(struct adapter *adapter, unsigned int reg,
+                               u32 val)
+{
+       iowrite32(val, adapter->regs + reg);
+}
+
+static inline void slic_write64(struct adapter *adapter, unsigned int reg,
+                               u32 val, u32 hiaddr)
+{
+       unsigned long flags;
+
+       spin_lock_irqsave(&adapter->bit64reglock, flags);
+       slic_write32(adapter, SLIC_REG_ADDR_UPPER, hiaddr);
+       slic_write32(adapter, reg, val);
+       mmiowb();
+       spin_unlock_irqrestore(&adapter->bit64reglock, flags);
+}
+
 #define UPDATE_STATS(largestat, newstat, oldstat)                        \
 {                                                                        \
        if ((newstat) < (oldstat))                                       \

diff --git a/drivers/staging/slicoss/slichw.h b/drivers/staging/slicoss/slichw.h
index 9723b4a..f06450e 100644 (file)
--- a/drivers/staging/slicoss/slichw.h
+++ b/drivers/staging/slicoss/slichw.h
@@ -289,6 +289,119 @@ struct slic_rspbuf {
        u32 pad2[4];
 };
 
+/* Reset Register */
+#define SLIC_REG_RESET         0x0000
+/* Interrupt Control Register */
+#define SLIC_REG_ICR           0x0008
+/* Interrupt status pointer */
+#define SLIC_REG_ISP           0x0010
+/* Interrupt status */
+#define SLIC_REG_ISR           0x0018
+/*
+ * Header buffer address reg
+ * 31-8 - phy addr of set of contiguous hdr buffers
+ *  7-0 - number of buffers passed
+ * Buffers are 256 bytes long on 256-byte boundaries.
+ */
+#define SLIC_REG_HBAR          0x0020
+/*
+ * Data buffer handle & address reg
+ * 4 sets of registers; Buffers are 2K bytes long 2 per 4K page.
+ */
+#define SLIC_REG_DBAR          0x0028
+/*
+ * Xmt Cmd buf addr regs.
+ * 1 per XMT interface
+ * 31-5 - phy addr of host command buffer
+ *  4-0 - length of cmd in multiples of 32 bytes
+ * Buffers are 32 bytes up to 512 bytes long
+ */
+#define SLIC_REG_CBAR          0x0030
+/* Write control store */
+#define        SLIC_REG_WCS            0x0034
+/*
+ * Response buffer address reg.
+ * 31-8 - phy addr of set of contiguous response buffers
+ * 7-0 - number of buffers passed
+ * Buffers are 32 bytes long on 32-byte boundaries.
+ */
+#define        SLIC_REG_RBAR           0x0038
+/* Read statistics (UPR) */
+#define        SLIC_REG_RSTAT          0x0040
+/* Read link status */
+#define        SLIC_REG_LSTAT          0x0048
+/* Write Mac Config */
+#define        SLIC_REG_WMCFG          0x0050
+/* Write phy register */
+#define SLIC_REG_WPHY          0x0058
+/* Rcv Cmd buf addr reg */
+#define        SLIC_REG_RCBAR          0x0060
+/* Read SLIC Config*/
+#define SLIC_REG_RCONFIG       0x0068
+/* Interrupt aggregation time */
+#define SLIC_REG_INTAGG                0x0070
+/* Write XMIT config reg */
+#define        SLIC_REG_WXCFG          0x0078
+/* Write RCV config reg */
+#define        SLIC_REG_WRCFG          0x0080
+/* Write rcv addr a low */
+#define        SLIC_REG_WRADDRAL       0x0088
+/* Write rcv addr a high */
+#define        SLIC_REG_WRADDRAH       0x0090
+/* Write rcv addr b low */
+#define        SLIC_REG_WRADDRBL       0x0098
+/* Write rcv addr b high */
+#define        SLIC_REG_WRADDRBH       0x00a0
+/* Low bits of mcast mask */
+#define        SLIC_REG_MCASTLOW       0x00a8
+/* High bits of mcast mask */
+#define        SLIC_REG_MCASTHIGH      0x00b0
+/* Ping the card */
+#define SLIC_REG_PING          0x00b8
+/* Dump command */
+#define SLIC_REG_DUMP_CMD      0x00c0
+/* Dump data pointer */
+#define SLIC_REG_DUMP_DATA     0x00c8
+/* Read card's pci_status register */
+#define        SLIC_REG_PCISTATUS      0x00d0
+/* Write hostid field */
+#define SLIC_REG_WRHOSTID      0x00d8
+/* Put card in a low power state */
+#define SLIC_REG_LOW_POWER     0x00e0
+/* Force slic into quiescent state  before soft reset */
+#define SLIC_REG_QUIESCE       0x00e8
+/* Reset interface queues */
+#define SLIC_REG_RESET_IFACE   0x00f0
+/*
+ * Register is only written when it has changed.
+ * Bits 63-32 for host i/f addrs.
+ */
+#define SLIC_REG_ADDR_UPPER    0x00f8
+/* 64 bit Header buffer address reg */
+#define SLIC_REG_HBAR64                0x0100
+/* 64 bit Data buffer handle & address reg */
+#define SLIC_REG_DBAR64                0x0108
+/* 64 bit Xmt Cmd buf addr regs. */
+#define SLIC_REG_CBAR64                0x0110
+/* 64 bit Response buffer address reg.*/
+#define SLIC_REG_RBAR64                0x0118
+/* 64 bit Rcv Cmd buf addr reg*/
+#define        SLIC_REG_RCBAR64        0x0120
+/* Read statistics (64 bit UPR) */
+#define        SLIC_REG_RSTAT64        0x0128
+/* Download Gigabit RCV sequencer ucode */
+#define SLIC_REG_RCV_WCS       0x0130
+/* Write VlanId field */
+#define SLIC_REG_WRVLANID      0x0138
+/* Read Transformer info */
+#define SLIC_REG_READ_XF_INFO  0x0140
+/* Write Transformer info */
+#define SLIC_REG_WRITE_XF_INFO 0x0148
+/* Write card ticks per second */
+#define SLIC_REG_TICKS_PER_SEC 0x0170
+
+#define SLIC_REG_HOSTID                0x1554
+
 struct slic_regs {
        u32     slic_reset;     /* Reset Register */
        u32     pad0;

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 577c2d2..edae0f7 100644 (file)
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -2920,6 +2920,7 @@ static int slic_init_adapter(struct net_device *netdev,
        adapter->slotnumber = ((pcidev->devfn >> 3) & 0x1F);
        adapter->functionnumber = (pcidev->devfn & 0x7);
        adapter->slic_regs = memaddr;
+       adapter->regs = memaddr;
        adapter->irq = pcidev->irq;
        adapter->chipid = chip_idx;
        adapter->port = 0;