powerpc/pseries/vas: Use common names in VAS capability structure

nr_total/nr_used_credits provides credits usage to user space
via sysfs and the same interface can be used on PowerNV in
future. Changed with proper naming so that applicable on both
pseries and PowerNV.

Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f4313e9f198ee4f8d4fa4d015d8d1873e17851e6.camel@linux.ibm.com

diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c
index d243ddc..18aae03 100644 (file)
--- a/arch/powerpc/platforms/pseries/vas.c
+++ b/arch/powerpc/platforms/pseries/vas.c
@@ -310,8 +310,8 @@ static struct vas_window *vas_allocate_window(int vas_id, u64 flags,
 
        cop_feat_caps = &caps->caps;
 
-       if (atomic_inc_return(&cop_feat_caps->used_lpar_creds) >
-                       atomic_read(&cop_feat_caps->target_lpar_creds)) {
+       if (atomic_inc_return(&cop_feat_caps->nr_used_credits) >
+                       atomic_read(&cop_feat_caps->nr_total_credits)) {
                pr_err("Credits are not available to allocate window\n");
                rc = -EINVAL;
                goto out;
@@ -385,7 +385,7 @@ out_free:
        free_irq_setup(txwin);
        h_deallocate_vas_window(txwin->vas_win.winid);
 out:
-       atomic_dec(&cop_feat_caps->used_lpar_creds);
+       atomic_dec(&cop_feat_caps->nr_used_credits);
        kfree(txwin);
        return ERR_PTR(rc);
 }
@@ -445,7 +445,7 @@ static int vas_deallocate_window(struct vas_window *vwin)
        }
 
        list_del(&win->win_list);
-       atomic_dec(&caps->used_lpar_creds);
+       atomic_dec(&caps->nr_used_credits);
        mutex_unlock(&vas_pseries_mutex);
 
        put_vas_user_win_ref(&vwin->task_ref);
@@ -521,7 +521,7 @@ static int __init get_vas_capabilities(u8 feat, enum vas_cop_feat_type type,
        }
        caps->max_lpar_creds = be16_to_cpu(hv_caps->max_lpar_creds);
        caps->max_win_creds = be16_to_cpu(hv_caps->max_win_creds);
-       atomic_set(&caps->target_lpar_creds,
+       atomic_set(&caps->nr_total_credits,
                   be16_to_cpu(hv_caps->target_lpar_creds));
        if (feat == VAS_GZIP_DEF_FEAT) {
                caps->def_lpar_creds = be16_to_cpu(hv_caps->def_lpar_creds);

diff --git a/arch/powerpc/platforms/pseries/vas.h b/arch/powerpc/platforms/pseries/vas.h
index 4ecb3fc..d6ea8ab 100644 (file)
--- a/arch/powerpc/platforms/pseries/vas.h
+++ b/arch/powerpc/platforms/pseries/vas.h
@@ -72,9 +72,8 @@ struct vas_cop_feat_caps {
        };
        /* Total LPAR available credits. Can be different from max LPAR */
        /* credits due to DLPAR operation */
-       atomic_t        target_lpar_creds;
-       atomic_t        used_lpar_creds; /* Used credits so far */
-       u16             avail_lpar_creds; /* Remaining available credits */
+       atomic_t        nr_total_credits;       /* Total credits assigned to LPAR */
+       atomic_t        nr_used_credits;        /* Used credits so far */
 };
 
 /*