cxgb4: Add T5 debugfs support

Signed-off-by: Santosh Rastapur <santosh@chelsio.com>
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index f8ff30e..45b18bd 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -908,7 +908,8 @@ int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid,
                        int start, int n, const u16 *rspq, unsigned int nrspq);
 int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
                       unsigned int flags);
-int t4_mc_read(struct adapter *adap, u32 addr, __be32 *data, u64 *parity);
+int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
+              u64 *parity);
 int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
                u64 *parity);
 

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 177d0c1..ca88070 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2843,8 +2843,8 @@ static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
                int ret, ofst;
                __be32 data[16];
 
-               if (mem == MEM_MC)
-                       ret = t4_mc_read(adap, pos, data, NULL);
+               if ((mem == MEM_MC) || (mem == MEM_MC1))
+                       ret = t4_mc_read(adap, mem % MEM_MC, pos, data, NULL);
                else
                        ret = t4_edc_read(adap, mem, pos, data, NULL);
                if (ret)
@@ -2885,18 +2885,37 @@ static void add_debugfs_mem(struct adapter *adap, const char *name,
 static int setup_debugfs(struct adapter *adap)
 {
        int i;
+       u32 size;
 
        if (IS_ERR_OR_NULL(adap->debugfs_root))
                return -1;
 
        i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE);
-       if (i & EDRAM0_ENABLE)
-               add_debugfs_mem(adap, "edc0", MEM_EDC0, 5);
-       if (i & EDRAM1_ENABLE)
-               add_debugfs_mem(adap, "edc1", MEM_EDC1, 5);
-       if (i & EXT_MEM_ENABLE)
-               add_debugfs_mem(adap, "mc", MEM_MC,
-                       EXT_MEM_SIZE_GET(t4_read_reg(adap, MA_EXT_MEMORY_BAR)));
+       if (i & EDRAM0_ENABLE) {
+               size = t4_read_reg(adap, MA_EDRAM0_BAR);
+               add_debugfs_mem(adap, "edc0", MEM_EDC0, EDRAM_SIZE_GET(size));
+       }
+       if (i & EDRAM1_ENABLE) {
+               size = t4_read_reg(adap, MA_EDRAM1_BAR);
+               add_debugfs_mem(adap, "edc1", MEM_EDC1, EDRAM_SIZE_GET(size));
+       }
+       if (is_t4(adap->chip)) {
+               size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
+               if (i & EXT_MEM_ENABLE)
+                       add_debugfs_mem(adap, "mc", MEM_MC,
+                                       EXT_MEM_SIZE_GET(size));
+       } else {
+               if (i & EXT_MEM_ENABLE) {
+                       size = t4_read_reg(adap, MA_EXT_MEMORY_BAR);
+                       add_debugfs_mem(adap, "mc0", MEM_MC0,
+                                       EXT_MEM_SIZE_GET(size));
+               }
+               if (i & EXT_MEM1_ENABLE) {
+                       size = t4_read_reg(adap, MA_EXT_MEMORY1_BAR);
+                       add_debugfs_mem(adap, "mc1", MEM_MC1,
+                                       EXT_MEM_SIZE_GET(size));
+               }
+       }
        if (adap->l2t)
                debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap,
                                    &t4_l2t_fops);
@@ -4101,17 +4120,27 @@ void t4_fatal_err(struct adapter *adap)
 
 static void setup_memwin(struct adapter *adap)
 {
-       u32 bar0;
+       u32 bar0, mem_win0_base, mem_win1_base, mem_win2_base;
 
        bar0 = pci_resource_start(adap->pdev, 0);  /* truncation intentional */
+       if (is_t4(adap->chip)) {
+               mem_win0_base = bar0 + MEMWIN0_BASE;
+               mem_win1_base = bar0 + MEMWIN1_BASE;
+               mem_win2_base = bar0 + MEMWIN2_BASE;
+       } else {
+               /* For T5, only relative offset inside the PCIe BAR is passed */
+               mem_win0_base = MEMWIN0_BASE;
+               mem_win1_base = MEMWIN1_BASE_T5;
+               mem_win2_base = MEMWIN2_BASE_T5;
+       }
        t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0),
-                    (bar0 + MEMWIN0_BASE) | BIR(0) |
+                    mem_win0_base | BIR(0) |
                     WINDOW(ilog2(MEMWIN0_APERTURE) - 10));
        t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 1),
-                    (bar0 + MEMWIN1_BASE) | BIR(0) |
+                    mem_win1_base | BIR(0) |
                     WINDOW(ilog2(MEMWIN1_APERTURE) - 10));
        t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2),
-                    (bar0 + MEMWIN2_BASE) | BIR(0) |
+                    mem_win2_base | BIR(0) |
                     WINDOW(ilog2(MEMWIN2_APERTURE) - 10));
 }
 

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 229a3bf..d02d4e8 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -282,6 +282,7 @@ int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
  *     t4_mc_read - read from MC through backdoor accesses
  *     @adap: the adapter
  *     @addr: address of first byte requested
+ *     @idx: which MC to access
  *     @data: 64 bytes of data containing the requested address
  *     @ecc: where to store the corresponding 64-bit ECC word
  *
@@ -289,22 +290,38 @@ int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size,
  *     that covers the requested address @addr.  If @parity is not %NULL it
  *     is assigned the 64-bit ECC word for the read data.
  */
-int t4_mc_read(struct adapter *adap, u32 addr, __be32 *data, u64 *ecc)
+int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
 {
        int i;
+       u32 mc_bist_cmd, mc_bist_cmd_addr, mc_bist_cmd_len;
+       u32 mc_bist_status_rdata, mc_bist_data_pattern;
 
-       if (t4_read_reg(adap, MC_BIST_CMD) & START_BIST)
+       if (is_t4(adap->chip)) {
+               mc_bist_cmd = MC_BIST_CMD;
+               mc_bist_cmd_addr = MC_BIST_CMD_ADDR;
+               mc_bist_cmd_len = MC_BIST_CMD_LEN;
+               mc_bist_status_rdata = MC_BIST_STATUS_RDATA;
+               mc_bist_data_pattern = MC_BIST_DATA_PATTERN;
+       } else {
+               mc_bist_cmd = MC_REG(MC_P_BIST_CMD, idx);
+               mc_bist_cmd_addr = MC_REG(MC_P_BIST_CMD_ADDR, idx);
+               mc_bist_cmd_len = MC_REG(MC_P_BIST_CMD_LEN, idx);
+               mc_bist_status_rdata = MC_REG(MC_P_BIST_STATUS_RDATA, idx);
+               mc_bist_data_pattern = MC_REG(MC_P_BIST_DATA_PATTERN, idx);
+       }
+
+       if (t4_read_reg(adap, mc_bist_cmd) & START_BIST)
                return -EBUSY;
-       t4_write_reg(adap, MC_BIST_CMD_ADDR, addr & ~0x3fU);
-       t4_write_reg(adap, MC_BIST_CMD_LEN, 64);
-       t4_write_reg(adap, MC_BIST_DATA_PATTERN, 0xc);
-       t4_write_reg(adap, MC_BIST_CMD, BIST_OPCODE(1) | START_BIST |
+       t4_write_reg(adap, mc_bist_cmd_addr, addr & ~0x3fU);
+       t4_write_reg(adap, mc_bist_cmd_len, 64);
+       t4_write_reg(adap, mc_bist_data_pattern, 0xc);
+       t4_write_reg(adap, mc_bist_cmd, BIST_OPCODE(1) | START_BIST |
                     BIST_CMD_GAP(1));
-       i = t4_wait_op_done(adap, MC_BIST_CMD, START_BIST, 0, 10, 1);
+       i = t4_wait_op_done(adap, mc_bist_cmd, START_BIST, 0, 10, 1);
        if (i)
                return i;
 
-#define MC_DATA(i) MC_BIST_STATUS_REG(MC_BIST_STATUS_RDATA, i)
+#define MC_DATA(i) MC_BIST_STATUS_REG(mc_bist_status_rdata, i)
 
        for (i = 15; i >= 0; i--)
                *data++ = htonl(t4_read_reg(adap, MC_DATA(i)));
@@ -329,20 +346,39 @@ int t4_mc_read(struct adapter *adap, u32 addr, __be32 *data, u64 *ecc)
 int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
 {
        int i;
+       u32 edc_bist_cmd, edc_bist_cmd_addr, edc_bist_cmd_len;
+       u32 edc_bist_cmd_data_pattern, edc_bist_status_rdata;
 
-       idx *= EDC_STRIDE;
-       if (t4_read_reg(adap, EDC_BIST_CMD + idx) & START_BIST)
+       if (is_t4(adap->chip)) {
+               edc_bist_cmd = EDC_REG(EDC_BIST_CMD, idx);
+               edc_bist_cmd_addr = EDC_REG(EDC_BIST_CMD_ADDR, idx);
+               edc_bist_cmd_len = EDC_REG(EDC_BIST_CMD_LEN, idx);
+               edc_bist_cmd_data_pattern = EDC_REG(EDC_BIST_DATA_PATTERN,
+                                                   idx);
+               edc_bist_status_rdata = EDC_REG(EDC_BIST_STATUS_RDATA,
+                                                   idx);
+       } else {
+               edc_bist_cmd = EDC_REG_T5(EDC_H_BIST_CMD, idx);
+               edc_bist_cmd_addr = EDC_REG_T5(EDC_H_BIST_CMD_ADDR, idx);
+               edc_bist_cmd_len = EDC_REG_T5(EDC_H_BIST_CMD_LEN, idx);
+               edc_bist_cmd_data_pattern =
+                       EDC_REG_T5(EDC_H_BIST_DATA_PATTERN, idx);
+               edc_bist_status_rdata =
+                        EDC_REG_T5(EDC_H_BIST_STATUS_RDATA, idx);
+       }
+
+       if (t4_read_reg(adap, edc_bist_cmd) & START_BIST)
                return -EBUSY;
-       t4_write_reg(adap, EDC_BIST_CMD_ADDR + idx, addr & ~0x3fU);
-       t4_write_reg(adap, EDC_BIST_CMD_LEN + idx, 64);
-       t4_write_reg(adap, EDC_BIST_DATA_PATTERN + idx, 0xc);
-       t4_write_reg(adap, EDC_BIST_CMD + idx,
+       t4_write_reg(adap, edc_bist_cmd_addr, addr & ~0x3fU);
+       t4_write_reg(adap, edc_bist_cmd_len, 64);
+       t4_write_reg(adap, edc_bist_cmd_data_pattern, 0xc);
+       t4_write_reg(adap, edc_bist_cmd,
                     BIST_OPCODE(1) | BIST_CMD_GAP(1) | START_BIST);
-       i = t4_wait_op_done(adap, EDC_BIST_CMD + idx, START_BIST, 0, 10, 1);
+       i = t4_wait_op_done(adap, edc_bist_cmd, START_BIST, 0, 10, 1);
        if (i)
                return i;
 
-#define EDC_DATA(i) (EDC_BIST_STATUS_REG(EDC_BIST_STATUS_RDATA, i) + idx)
+#define EDC_DATA(i) (EDC_BIST_STATUS_REG(edc_bist_status_rdata, i))
 
        for (i = 15; i >= 0; i--)
                *data++ = htonl(t4_read_reg(adap, EDC_DATA(i)));
@@ -366,6 +402,7 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
 static int t4_mem_win_rw(struct adapter *adap, u32 addr, __be32 *data, int dir)
 {
        int i;
+       u32 win_pf = is_t4(adap->chip) ? 0 : V_PFNUM(adap->fn);
 
        /*
         * Setup offset into PCIE memory window.  Address must be a
@@ -374,7 +411,7 @@ static int t4_mem_win_rw(struct adapter *adap, u32 addr, __be32 *data, int dir)
         * values.)
         */
        t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET,
-                    addr & ~(MEMWIN0_APERTURE - 1));
+                    (addr & ~(MEMWIN0_APERTURE - 1)) | win_pf);
        t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET);
 
        /* Collecting data 4 bytes at a time upto MEMWIN0_APERTURE */
@@ -410,6 +447,7 @@ static int t4_memory_rw(struct adapter *adap, int mtype, u32 addr, u32 len,
                        __be32 *buf, int dir)
 {
        u32 pos, start, end, offset, memoffset;
+       u32 edc_size, mc_size;
        int ret = 0;
        __be32 *data;
 
@@ -423,13 +461,21 @@ static int t4_memory_rw(struct adapter *adap, int mtype, u32 addr, u32 len,
        if (!data)
                return -ENOMEM;
 
-       /*
-        * Offset into the region of memory which is being accessed
+       /* Offset into the region of memory which is being accessed
         * MEM_EDC0 = 0
         * MEM_EDC1 = 1
-        * MEM_MC   = 2
+        * MEM_MC   = 2 -- T4
+        * MEM_MC0  = 2 -- For T5
+        * MEM_MC1  = 3 -- For T5
         */
-       memoffset = (mtype * (5 * 1024 * 1024));
+       edc_size  = EDRAM_SIZE_GET(t4_read_reg(adap, MA_EDRAM0_BAR));
+       if (mtype != MEM_MC1)
+               memoffset = (mtype * (edc_size * 1024 * 1024));
+       else {
+               mc_size = EXT_MEM_SIZE_GET(t4_read_reg(adap,
+                                                      MA_EXT_MEMORY_BAR));
+               memoffset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024;
+       }
 
        /* Determine the PCIE_MEM_ACCESS_OFFSET */
        addr = addr + memoffset;
@@ -2411,24 +2457,24 @@ int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox,
  *     @addr: address of first byte requested aligned on 32b.
  *     @data: len bytes to hold the data read
  *     @len: amount of data to read from window.  Must be <=
- *            MEMWIN0_APERATURE after adjusting for 16B alignment
- *            requirements of the the memory window.
+ *            MEMWIN0_APERATURE after adjusting for 16B for T4 and
+ *            128B for T5 alignment requirements of the the memory window.
  *
  *     Read len bytes of data from MC starting at @addr.
  */
 int t4_mem_win_read_len(struct adapter *adap, u32 addr, __be32 *data, int len)
 {
-       int i;
-       int off;
+       int i, off;
+       u32 win_pf = is_t4(adap->chip) ? 0 : V_PFNUM(adap->fn);
 
-       /*
-        * Align on a 16B boundary.
+       /* Align on a 2KB boundary.
         */
-       off = addr & 15;
+       off = addr & MEMWIN0_APERTURE;
        if ((addr & 3) || (len + off) > MEMWIN0_APERTURE)
                return -EINVAL;
 
-       t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET, addr & ~15);
+       t4_write_reg(adap, PCIE_MEM_ACCESS_OFFSET,
+                    (addr & ~MEMWIN0_APERTURE) | win_pf);
        t4_read_reg(adap, PCIE_MEM_ACCESS_OFFSET);
 
        for (i = 0; i < len; i += 4)