qed: Add support for coalescing config read/update.

[cascardo/linux.git] / drivers / net / ethernet / qlogic / qed / qed_hw.c

diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c
index 2693c30..e178853 100644 (file)
--- a/drivers/net/ethernet/qlogic/qed/qed_hw.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c
@@ -768,6 +768,29 @@ int qed_dmae_host2grc(struct qed_hwfn *p_hwfn,
        return rc;
 }
 
+int
+qed_dmae_grc2host(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, u32 grc_addr,
+                 dma_addr_t dest_addr, u32 size_in_dwords, u32 flags)
+{
+       u32 grc_addr_in_dw = grc_addr / sizeof(u32);
+       struct qed_dmae_params params;
+       int rc;
+
+       memset(&params, 0, sizeof(struct qed_dmae_params));
+       params.flags = flags;
+
+       mutex_lock(&p_hwfn->dmae_info.mutex);
+
+       rc = qed_dmae_execute_command(p_hwfn, p_ptt, grc_addr_in_dw,
+                                     dest_addr, QED_DMAE_ADDRESS_GRC,
+                                     QED_DMAE_ADDRESS_HOST_VIRT,
+                                     size_in_dwords, &params);
+
+       mutex_unlock(&p_hwfn->dmae_info.mutex);
+
+       return rc;
+}
+
 int
 qed_dmae_host2host(struct qed_hwfn *p_hwfn,
                   struct qed_ptt *p_ptt,