net: ipa: add a parameter to aggregation registers

Starting with IPA v5.0, a single IPA instance can have more than 32
endpoints defined.  To handle this, each register that holds a
bitmap of IPA endpoints is replicated as needed to represent the
available endpoints.

To prepare for this, registers that represent endpoint IDs in a bit
mask will be defined to have a parameter, with a stride value of 4
bytes.  The first 32 endpoints are represented in the first 32-bit
register, then the next (up to) 32 endpoints at an offset 4 bytes
higher.  When accessing such a register, the endpoint ID divided
by 32 determines the offset, and the endpoint ID modulo 32 defines
the endpoint's bit position within the register.

The first two registers we'll update for this are STATE_AGGR_ACTIVE
and AGGR_FORCE_CLOSE.

Until more than 32 endpoints are supported, this change has no
practical effect.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 2a6184ea8f5ca9e1d238727e4bbde224225468a3..32559ed498c19e26b7572fd396b37b7f339e833b 100644 (file)
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -350,29 +350,35 @@ ipa_endpoint_program_delay(struct ipa_endpoint *endpoint, bool enable)
 
 static bool ipa_endpoint_aggr_active(struct ipa_endpoint *endpoint)
 {
-       u32 mask = BIT(endpoint->endpoint_id);
+       u32 endpoint_id = endpoint->endpoint_id;
+       u32 mask = BIT(endpoint_id % 32);
        struct ipa *ipa = endpoint->ipa;
+       u32 unit = endpoint_id / 32;
        const struct ipa_reg *reg;
        u32 val;
 
+       /* This works until we actually have more than 32 endpoints */
        WARN_ON(!(mask & ipa->available));
 
        reg = ipa_reg(ipa, STATE_AGGR_ACTIVE);
-       val = ioread32(ipa->reg_virt + ipa_reg_offset(reg));
+       val = ioread32(ipa->reg_virt + ipa_reg_n_offset(reg, unit));
 
        return !!(val & mask);
 }
 
 static void ipa_endpoint_force_close(struct ipa_endpoint *endpoint)
 {
-       u32 mask = BIT(endpoint->endpoint_id);
+       u32 endpoint_id = endpoint->endpoint_id;
+       u32 mask = BIT(endpoint_id % 32);
        struct ipa *ipa = endpoint->ipa;
+       u32 unit = endpoint_id / 32;
        const struct ipa_reg *reg;
 
+       /* This works until we actually have more than 32 endpoints */
        WARN_ON(!(mask & ipa->available));
 
        reg = ipa_reg(ipa, AGGR_FORCE_CLOSE);
-       iowrite32(mask, ipa->reg_virt + ipa_reg_offset(reg));
+       iowrite32(mask, ipa->reg_virt + ipa_reg_n_offset(reg, unit));
 }
 
 /**

diff --git a/drivers/net/ipa/reg/ipa_reg-v3.1.c b/drivers/net/ipa/reg/ipa_reg-v3.1.c
index 0d002c3c38a2687aebba48ddec6dd8d587bbdfd4..0b6edc2912bd32df7727e955c1d9dd1a7bb1a158 100644 (file)
--- a/drivers/net/ipa/reg/ipa_reg-v3.1.c
+++ b/drivers/net/ipa/reg/ipa_reg-v3.1.c
@@ -103,7 +103,7 @@ static const u32 ipa_reg_filt_rout_hash_flush_fmask[] = {
 IPA_REG_FIELDS(FILT_ROUT_HASH_FLUSH, filt_rout_hash_flush, 0x0000090);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(STATE_AGGR_ACTIVE, state_aggr_active, 0x0000010c);
+IPA_REG_STRIDE(STATE_AGGR_ACTIVE, state_aggr_active, 0x0000010c, 0x0004);
 
 IPA_REG(IPA_BCR, ipa_bcr, 0x000001d0);
 
@@ -116,7 +116,7 @@ static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
 IPA_REG_FIELDS(LOCAL_PKT_PROC_CNTXT, local_pkt_proc_cntxt, 0x000001e8);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec);
+IPA_REG_STRIDE(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec, 0x0004);
 
 static const u32 ipa_reg_counter_cfg_fmask[] = {
        [EOT_COAL_GRANULARITY]                          = GENMASK(3, 0),

diff --git a/drivers/net/ipa/reg/ipa_reg-v3.5.1.c b/drivers/net/ipa/reg/ipa_reg-v3.5.1.c
index 6e2f939b18f1984b7d966117fb0b33140564eab9..10f62f6aaf7a45175f825640b40a073fae3493c9 100644 (file)
--- a/drivers/net/ipa/reg/ipa_reg-v3.5.1.c
+++ b/drivers/net/ipa/reg/ipa_reg-v3.5.1.c
@@ -108,7 +108,7 @@ static const u32 ipa_reg_filt_rout_hash_flush_fmask[] = {
 IPA_REG_FIELDS(FILT_ROUT_HASH_FLUSH, filt_rout_hash_flush, 0x0000090);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(STATE_AGGR_ACTIVE, state_aggr_active, 0x0000010c);
+IPA_REG_STRIDE(STATE_AGGR_ACTIVE, state_aggr_active, 0x0000010c, 0x0004);
 
 IPA_REG(IPA_BCR, ipa_bcr, 0x000001d0);
 
@@ -121,7 +121,7 @@ static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
 IPA_REG_FIELDS(LOCAL_PKT_PROC_CNTXT, local_pkt_proc_cntxt, 0x000001e8);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec);
+IPA_REG_STRIDE(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec, 0x0004);
 
 static const u32 ipa_reg_counter_cfg_fmask[] = {
                                                /* Bits 0-3 reserved */

diff --git a/drivers/net/ipa/reg/ipa_reg-v4.11.c b/drivers/net/ipa/reg/ipa_reg-v4.11.c
index 8fd36569bb9f8e7fc0c0df43dfc34d989f067b01..113a25c006da19cc12f541948815c77733a230a8 100644 (file)
--- a/drivers/net/ipa/reg/ipa_reg-v4.11.c
+++ b/drivers/net/ipa/reg/ipa_reg-v4.11.c
@@ -140,7 +140,7 @@ static const u32 ipa_reg_filt_rout_hash_flush_fmask[] = {
 IPA_REG_FIELDS(FILT_ROUT_HASH_FLUSH, filt_rout_hash_flush, 0x000014c);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4);
+IPA_REG_STRIDE(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4, 0x0004);
 
 static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
        [IPA_BASE_ADDR]                                 = GENMASK(17, 0),
@@ -151,7 +151,7 @@ static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
 IPA_REG_FIELDS(LOCAL_PKT_PROC_CNTXT, local_pkt_proc_cntxt, 0x000001e8);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec);
+IPA_REG_STRIDE(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec, 0x0004);
 
 static const u32 ipa_reg_ipa_tx_cfg_fmask[] = {
                                                /* Bits 0-1 reserved */

diff --git a/drivers/net/ipa/reg/ipa_reg-v4.2.c b/drivers/net/ipa/reg/ipa_reg-v4.2.c
index f8e78e1907c836168d72528b1cfcd94b60681f68..c93f2da9290fce723f69482a0cb014433ec1ae38 100644 (file)
--- a/drivers/net/ipa/reg/ipa_reg-v4.2.c
+++ b/drivers/net/ipa/reg/ipa_reg-v4.2.c
@@ -132,7 +132,7 @@ static const u32 ipa_reg_filt_rout_hash_flush_fmask[] = {
 IPA_REG_FIELDS(FILT_ROUT_HASH_FLUSH, filt_rout_hash_flush, 0x000014c);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4);
+IPA_REG_STRIDE(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4, 0x0004);
 
 IPA_REG(IPA_BCR, ipa_bcr, 0x000001d0);
 
@@ -145,7 +145,7 @@ static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
 IPA_REG_FIELDS(LOCAL_PKT_PROC_CNTXT, local_pkt_proc_cntxt, 0x000001e8);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec);
+IPA_REG_STRIDE(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec, 0x0004);
 
 static const u32 ipa_reg_counter_cfg_fmask[] = {
                                                /* Bits 0-3 reserved */

diff --git a/drivers/net/ipa/reg/ipa_reg-v4.5.c b/drivers/net/ipa/reg/ipa_reg-v4.5.c
index d32b805abb11aa84b1f2cd1c65a64d631d0473b9..1615c5ead8cc104d95d7dd1480c2e7df0743c8e5 100644 (file)
--- a/drivers/net/ipa/reg/ipa_reg-v4.5.c
+++ b/drivers/net/ipa/reg/ipa_reg-v4.5.c
@@ -134,7 +134,7 @@ static const u32 ipa_reg_filt_rout_hash_flush_fmask[] = {
 IPA_REG_FIELDS(FILT_ROUT_HASH_FLUSH, filt_rout_hash_flush, 0x000014c);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4);
+IPA_REG_STRIDE(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4, 0x0004);
 
 static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
        [IPA_BASE_ADDR]                                 = GENMASK(17, 0),
@@ -145,7 +145,7 @@ static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
 IPA_REG_FIELDS(LOCAL_PKT_PROC_CNTXT, local_pkt_proc_cntxt, 0x000001e8);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec);
+IPA_REG_STRIDE(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec, 0x0004);
 
 static const u32 ipa_reg_ipa_tx_cfg_fmask[] = {
                                                /* Bits 0-1 reserved */

diff --git a/drivers/net/ipa/reg/ipa_reg-v4.9.c b/drivers/net/ipa/reg/ipa_reg-v4.9.c
index eabbc5451937bf79f73e040d5698e9e9a7eb10d0..4efc890d31589813772395ef3d1327eebc93f26d 100644 (file)
--- a/drivers/net/ipa/reg/ipa_reg-v4.9.c
+++ b/drivers/net/ipa/reg/ipa_reg-v4.9.c
@@ -139,7 +139,7 @@ static const u32 ipa_reg_filt_rout_hash_flush_fmask[] = {
 IPA_REG_FIELDS(FILT_ROUT_HASH_FLUSH, filt_rout_hash_flush, 0x000014c);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4);
+IPA_REG_STRIDE(STATE_AGGR_ACTIVE, state_aggr_active, 0x000000b4, 0x0004);
 
 static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
        [IPA_BASE_ADDR]                                 = GENMASK(17, 0),
@@ -150,7 +150,7 @@ static const u32 ipa_reg_local_pkt_proc_cntxt_fmask[] = {
 IPA_REG_FIELDS(LOCAL_PKT_PROC_CNTXT, local_pkt_proc_cntxt, 0x000001e8);
 
 /* Valid bits defined by ipa->available */
-IPA_REG(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec);
+IPA_REG_STRIDE(AGGR_FORCE_CLOSE, aggr_force_close, 0x000001ec, 0x0004);
 
 static const u32 ipa_reg_ipa_tx_cfg_fmask[] = {
                                                /* Bits 0-1 reserved */