cxgb3: use request_firmware() for the EDC registers setup

use request_firmware() to load the phy's EDC programmation

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 69 insertions, 0 deletions

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 538dda4422dc..27e7ef592b59 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -964,6 +964,75 @@ static int bind_qsets(struct adapter *adap)
 
 #define FW_FNAME "cxgb3/t3fw-%d.%d.%d.bin"
 #define TPSRAM_NAME "cxgb3/t3%c_psram-%d.%d.%d.bin"
+#define AEL2005_OPT_EDC_NAME "cxgb3/ael2005_opt_edc.bin"
+#define AEL2005_TWX_EDC_NAME "cxgb3/ael2005_twx_edc.bin"
+#define AEL2020_TWX_EDC_NAME "cxgb3/ael2005_twx_edc.bin"
+
+static inline const char *get_edc_fw_name(int edc_idx)
+{
+        const char *fw_name = NULL;
+
+        switch (edc_idx) {
+        case EDC_OPT_AEL2005:
+                fw_name = AEL2005_OPT_EDC_NAME;
+                break;
+        case EDC_TWX_AEL2005:
+                fw_name = AEL2005_TWX_EDC_NAME;
+                break;
+        case EDC_TWX_AEL2020:
+                fw_name = AEL2020_TWX_EDC_NAME;
+                break;
+        }
+        return fw_name;
+}
+
+int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size)
+{
+        struct adapter *adapter = phy->adapter;
+        const struct firmware *fw;
+        char buf[64];
+        u32 csum;
+        const __be32 *p;
+        u16 *cache = phy->phy_cache;
+        int i, ret;
+
+        snprintf(buf, sizeof(buf), get_edc_fw_name(edc_idx));
+
+        ret = request_firmware(&fw, buf, &adapter->pdev->dev);
+        if (ret < 0) {
+                dev_err(&adapter->pdev->dev,
+                        "could not upgrade firmware: unable to load %s\n",
+                        buf);
+                return ret;
+        }
+
+        /* check size, take checksum in account */
+        if (fw->size > size + 4) {
+                CH_ERR(adapter, "firmware image too large %u, expected %d\n",
+                       (unsigned int)fw->size, size + 4);
+                ret = -EINVAL;
+        }
+
+        /* compute checksum */
+        p = (const __be32 *)fw->data;
+        for (csum = 0, i = 0; i < fw->size / sizeof(csum); i++)
+                csum += ntohl(p[i]);
+
+        if (csum != 0xffffffff) {
+                CH_ERR(adapter, "corrupted firmware image, checksum %u\n",
+                       csum);
+                ret = -EINVAL;
+        }
+
+        for (i = 0; i < size / 4 ; i++) {
+                *cache++ = (be32_to_cpu(p[i]) & 0xffff0000) >> 16;
+                *cache++ = be32_to_cpu(p[i]) & 0xffff;
+        }
+
+        release_firmware(fw);
+
+        return ret;
+}
 
 static int upgrade_fw(struct adapter *adap)
 {