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GET /api/patches/1229962/?format=api
HTTP 200 OK
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{
    "id": 1229962,
    "url": "http://patchwork.ozlabs.org/api/patches/1229962/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20200127085927.13999-3-anthony.l.nguyen@intel.com/",
    "project": {
        "id": 46,
        "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api",
        "name": "Intel Wired Ethernet development",
        "link_name": "intel-wired-lan",
        "list_id": "intel-wired-lan.osuosl.org",
        "list_email": "intel-wired-lan@osuosl.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": "",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20200127085927.13999-3-anthony.l.nguyen@intel.com>",
    "list_archive_url": null,
    "date": "2020-01-27T08:59:15",
    "name": "[S39,03/15] ice: Fix for TCAM entry management",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "4d5448991e86f46cfeda9af0db93ecb9b32cabbe",
    "submitter": {
        "id": 68875,
        "url": "http://patchwork.ozlabs.org/api/people/68875/?format=api",
        "name": "Tony Nguyen",
        "email": "anthony.l.nguyen@intel.com"
    },
    "delegate": {
        "id": 68,
        "url": "http://patchwork.ozlabs.org/api/users/68/?format=api",
        "username": "jtkirshe",
        "first_name": "Jeff",
        "last_name": "Kirsher",
        "email": "jeffrey.t.kirsher@intel.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20200127085927.13999-3-anthony.l.nguyen@intel.com/mbox/",
    "series": [
        {
            "id": 155506,
            "url": "http://patchwork.ozlabs.org/api/series/155506/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=155506",
            "date": "2020-01-27T08:59:25",
            "name": "[S39,01/15] ice: Validate config for SW DCB map",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/155506/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/1229962/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/1229962/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<intel-wired-lan-bounces@osuosl.org>",
        "X-Original-To": [
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        "Delivered-To": [
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            "intel-wired-lan@lists.osuosl.org"
        ],
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        ],
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            "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id F1874879CC;\n\tMon, 27 Jan 2020 17:32:22 +0000 (UTC)",
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            "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 0BAD885142\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tMon, 27 Jan 2020 17:32:18 +0000 (UTC)",
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            "from fmsmga005.fm.intel.com ([10.253.24.32])\n\tby fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t27 Jan 2020 09:32:09 -0800",
            "from unknown (HELO localhost.jf.intel.com) ([10.166.244.174])\n\tby fmsmga005.fm.intel.com with ESMTP; 27 Jan 2020 09:32:09 -0800"
        ],
        "X-Virus-Scanned": [
            "amavisd-new at osuosl.org",
            "amavisd-new at osuosl.org"
        ],
        "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6",
        "X-Amp-Result": "SKIPPED(no attachment in message)",
        "X-Amp-File-Uploaded": "False",
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.70,370,1574150400\"; d=\"scan'208\";a=\"427350641\"",
        "From": "Tony Nguyen <anthony.l.nguyen@intel.com>",
        "To": "intel-wired-lan@lists.osuosl.org",
        "Date": "Mon, 27 Jan 2020 00:59:15 -0800",
        "Message-Id": "<20200127085927.13999-3-anthony.l.nguyen@intel.com>",
        "X-Mailer": "git-send-email 2.20.1",
        "In-Reply-To": "<20200127085927.13999-1-anthony.l.nguyen@intel.com>",
        "References": "<20200127085927.13999-1-anthony.l.nguyen@intel.com>",
        "MIME-Version": "1.0",
        "Subject": "[Intel-wired-lan] [PATCH S39 03/15] ice: Fix for TCAM entry\n\tmanagement",
        "X-BeenThere": "intel-wired-lan@osuosl.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.osuosl.org>",
        "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>",
        "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>",
        "List-Post": "<mailto:intel-wired-lan@osuosl.org>",
        "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>",
        "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>",
        "Content-Type": "text/plain; charset=\"us-ascii\"",
        "Content-Transfer-Encoding": "7bit",
        "Errors-To": "intel-wired-lan-bounces@osuosl.org",
        "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>"
    },
    "content": "From: Dan Nowlin <dan.nowlin@intel.com>\n\nOrder intermediate VSIG list correct in order to correctly match existing\nVSIG lists.\n\nWhen overriding pre-existing TCAM entries, properly delete the existing\nentry and remove it from the change/update list.\n\nSigned-off-by: Dan Nowlin <dan.nowlin@intel.com>\n---\n .../net/ethernet/intel/ice/ice_flex_pipe.c    | 65 +++++++++++++++----\n 1 file changed, 51 insertions(+), 14 deletions(-)",
    "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c\nindex 99208946224c..42bac3ec5526 100644\n--- a/drivers/net/ethernet/intel/ice/ice_flex_pipe.c\n+++ b/drivers/net/ethernet/intel/ice/ice_flex_pipe.c\n@@ -3470,6 +3470,24 @@ ice_move_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi, u16 vsig,\n \treturn 0;\n }\n \n+/**\n+ * ice_rem_chg_tcam_ent - remove a specific TCAM entry from change list\n+ * @hw: pointer to the HW struct\n+ * @idx: the index of the TCAM entry to remove\n+ * @chg: the list of change structures to search\n+ */\n+static void\n+ice_rem_chg_tcam_ent(struct ice_hw *hw, u16 idx, struct list_head *chg)\n+{\n+\tstruct ice_chs_chg *pos, *tmp;\n+\n+\tlist_for_each_entry_safe(tmp, pos, chg, list_entry)\n+\t\tif (tmp->type == ICE_TCAM_ADD && tmp->tcam_idx == idx) {\n+\t\t\tlist_del(&tmp->list_entry);\n+\t\t\tdevm_kfree(ice_hw_to_dev(hw), tmp);\n+\t\t}\n+}\n+\n /**\n  * ice_prof_tcam_ena_dis - add enable or disable TCAM change\n  * @hw: pointer to the HW struct\n@@ -3489,14 +3507,19 @@ ice_prof_tcam_ena_dis(struct ice_hw *hw, enum ice_block blk, bool enable,\n \tenum ice_status status;\n \tstruct ice_chs_chg *p;\n \n-\t/* Default: enable means change the low flag bit to don't care */\n-\tu8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x01, 0x00, 0x00, 0x00, 0x00 };\n+\tu8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };\n+\tu8 dc_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0x00, 0x00, 0x00 };\n \tu8 nm_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x00, 0x00, 0x00, 0x00, 0x00 };\n-\tu8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0x01, 0x00, 0x00, 0x00, 0x00 };\n \n \t/* if disabling, free the TCAM */\n \tif (!enable) {\n-\t\tstatus = ice_free_tcam_ent(hw, blk, tcam->tcam_idx);\n+\t\tstatus = ice_rel_tcam_idx(hw, blk, tcam->tcam_idx);\n+\n+\t\t/* if we have already created a change for this TCAM entry, then\n+\t\t * we need to remove that entry, in order to prevent writing to\n+\t\t * a TCAM entry we no longer will have ownership of.\n+\t\t */\n+\t\tice_rem_chg_tcam_ent(hw, tcam->tcam_idx, chg);\n \t\ttcam->tcam_idx = 0;\n \t\ttcam->in_use = 0;\n \t\treturn status;\n@@ -3612,11 +3635,12 @@ ice_adj_prof_priorities(struct ice_hw *hw, enum ice_block blk, u16 vsig,\n  * @blk: hardware block\n  * @vsig: the VSIG to which this profile is to be added\n  * @hdl: the profile handle indicating the profile to add\n+ * @rev: true to add entries to the end of the list\n  * @chg: the change list\n  */\n static enum ice_status\n ice_add_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl,\n-\t\t     struct list_head *chg)\n+\t\t     bool rev, struct list_head *chg)\n {\n \t/* Masks that ignore flags */\n \tu8 vl_msk[ICE_TCAM_KEY_VAL_SZ] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };\n@@ -3625,7 +3649,7 @@ ice_add_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl,\n \tstruct ice_prof_map *map;\n \tstruct ice_vsig_prof *t;\n \tstruct ice_chs_chg *p;\n-\tu16 i;\n+\tu16 vsig_idx, i;\n \n \t/* Get the details on the profile specified by the handle ID */\n \tmap = ice_search_prof_id(hw, blk, hdl);\n@@ -3687,8 +3711,13 @@ ice_add_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl,\n \t}\n \n \t/* add profile to VSIG */\n-\tlist_add(&t->list,\n-\t\t &hw->blk[blk].xlt2.vsig_tbl[(vsig & ICE_VSIG_IDX_M)].prop_lst);\n+\tvsig_idx = vsig & ICE_VSIG_IDX_M;\n+\tif (rev)\n+\t\tlist_add_tail(&t->list,\n+\t\t\t      &hw->blk[blk].xlt2.vsig_tbl[vsig_idx].prop_lst);\n+\telse\n+\t\tlist_add(&t->list,\n+\t\t\t &hw->blk[blk].xlt2.vsig_tbl[vsig_idx].prop_lst);\n \n \treturn 0;\n \n@@ -3728,7 +3757,7 @@ ice_create_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl,\n \tif (status)\n \t\tgoto err_ice_create_prof_id_vsig;\n \n-\tstatus = ice_add_prof_id_vsig(hw, blk, new_vsig, hdl, chg);\n+\tstatus = ice_add_prof_id_vsig(hw, blk, new_vsig, hdl, false, chg);\n \tif (status)\n \t\tgoto err_ice_create_prof_id_vsig;\n \n@@ -3753,11 +3782,13 @@ ice_create_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl,\n  * @blk: hardware block\n  * @vsi: the initial VSI that will be in VSIG\n  * @lst: the list of profile that will be added to the VSIG\n+ * @new_vsig: return of new VSIG\n  * @chg: the change list\n  */\n static enum ice_status\n ice_create_vsig_from_lst(struct ice_hw *hw, enum ice_block blk, u16 vsi,\n-\t\t\t struct list_head *lst, struct list_head *chg)\n+\t\t\t struct list_head *lst, u16 *new_vsig,\n+\t\t\t struct list_head *chg)\n {\n \tstruct ice_vsig_prof *t;\n \tenum ice_status status;\n@@ -3772,12 +3803,15 @@ ice_create_vsig_from_lst(struct ice_hw *hw, enum ice_block blk, u16 vsi,\n \t\treturn status;\n \n \tlist_for_each_entry(t, lst, list) {\n+\t\t/* Reverse the order here since we are copying the list */\n \t\tstatus = ice_add_prof_id_vsig(hw, blk, vsig, t->profile_cookie,\n-\t\t\t\t\t      chg);\n+\t\t\t\t\t      true, chg);\n \t\tif (status)\n \t\t\treturn status;\n \t}\n \n+\t*new_vsig = vsig;\n+\n \treturn 0;\n }\n \n@@ -3899,7 +3933,8 @@ ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl)\n \t\t\t * not sharing entries and we can simply add the new\n \t\t\t * profile to the VSIG.\n \t\t\t */\n-\t\t\tstatus = ice_add_prof_id_vsig(hw, blk, vsig, hdl, &chg);\n+\t\t\tstatus = ice_add_prof_id_vsig(hw, blk, vsig, hdl, false,\n+\t\t\t\t\t\t      &chg);\n \t\t\tif (status)\n \t\t\t\tgoto err_ice_add_prof_id_flow;\n \n@@ -3910,7 +3945,8 @@ ice_add_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl)\n \t\t} else {\n \t\t\t/* No match, so we need a new VSIG */\n \t\t\tstatus = ice_create_vsig_from_lst(hw, blk, vsi,\n-\t\t\t\t\t\t\t  &union_lst, &chg);\n+\t\t\t\t\t\t\t  &union_lst, &vsig,\n+\t\t\t\t\t\t\t  &chg);\n \t\t\tif (status)\n \t\t\t\tgoto err_ice_add_prof_id_flow;\n \n@@ -4076,7 +4112,8 @@ ice_rem_prof_id_flow(struct ice_hw *hw, enum ice_block blk, u16 vsi, u64 hdl)\n \t\t\t\t * new VSIG and TCAM entries\n \t\t\t\t */\n \t\t\t\tstatus = ice_create_vsig_from_lst(hw, blk, vsi,\n-\t\t\t\t\t\t\t\t  &copy, &chg);\n+\t\t\t\t\t\t\t\t  &copy, &vsig,\n+\t\t\t\t\t\t\t\t  &chg);\n \t\t\t\tif (status)\n \t\t\t\t\tgoto err_ice_rem_prof_id_flow;\n \n",
    "prefixes": [
        "S39",
        "03/15"
    ]
}