[PATCH net-next 4/4] be2net: don't create multiple RX/TX rings in multi channel mode
From: Sathya Perla <hidden>
Date: 2011-10-24 12:45:26
Subsystem:
emulex 10gbps nic be2, be3-r, lancer, skyhawk-r driver (be2net), networking drivers, the rest · Maintainers:
Ajit Khaparde, Sriharsha Basavapatna, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
When the HW is in multi-channel mode based on the skew/IPL, there are 4 functions per port and so not enough resources to create multiple RX/TX rings for each function. Signed-off-by: Suresh Reddy <redacted> Signed-off-by: Sathya Perla <redacted> --- drivers/net/ethernet/emulex/benet/be_cmds.h | 6 ++++++ drivers/net/ethernet/emulex/benet/be_main.c | 16 ++++++++++++---- 2 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 75b7574..a35cd03 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h@@ -1046,6 +1046,12 @@ struct be_cmd_resp_modify_eq_delay { /******************** Get FW Config *******************/ #define BE_FUNCTION_CAPS_RSS 0x2 +/* The HW can come up in either of the following multi-channel modes + * based on the skew/IPL. + */ +#define FLEX10_MODE 0x400 +#define VNIC_MODE 0x20000 +#define UMC_ENABLED 0x1000000 struct be_cmd_req_query_fw_cfg { struct be_cmd_req_hdr hdr; u32 rsvd[31];
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 77ce24b..91fe12a 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c@@ -114,6 +114,13 @@ static const char * const ue_status_hi_desc[] = { "Unknown" }; +/* Is BE in a multi-channel mode */ +static inline bool be_is_mc(struct be_adapter *adapter) { + return (adapter->function_mode & FLEX10_MODE || + adapter->function_mode & VNIC_MODE || + adapter->function_mode & UMC_ENABLED); +} + static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) { struct be_dma_mem *mem = &q->dma_mem;
@@ -1289,7 +1296,7 @@ static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) if (rxcp->vlanf) { /* vlanf could be wrongly set in some cards. * ignore if vtm is not set */ - if ((adapter->function_mode & 0x400) && !rxcp->vtm) + if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm) rxcp->vlanf = 0; if (!lancer_chip(adapter))
@@ -1636,7 +1643,7 @@ static void be_tx_queues_destroy(struct be_adapter *adapter) static int be_num_txqs_want(struct be_adapter *adapter) { if ((num_vfs && adapter->sriov_enabled) || - (adapter->function_mode & 0x400) || + be_is_mc(adapter) || lancer_chip(adapter) || !be_physfn(adapter) || adapter->generation == BE_GEN2) return 1;
@@ -1718,7 +1725,8 @@ static void be_rx_queues_destroy(struct be_adapter *adapter) static u32 be_num_rxqs_want(struct be_adapter *adapter) { if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) && - !adapter->sriov_enabled && !(adapter->function_mode & 0x400)) { + !adapter->sriov_enabled && be_physfn(adapter) && + !be_is_mc(adapter)) { return 1 + MAX_RSS_QS; /* one default non-RSS queue */ } else { dev_warn(&adapter->pdev->dev,
@@ -3187,7 +3195,7 @@ static int be_get_config(struct be_adapter *adapter) if (status) return status; - if (adapter->function_mode & 0x400) + if (adapter->function_mode & FLEX10_MODE) adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4; else adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
--
1.7.4